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  • 1.
    Ahmed, Sheikh Ali
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, The University Administration.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Brischke, Christian
    University of Goettingen, Germany.
    Adamopoulos, Stergios
    Swedish University of Agricultural Sciences, Sweden.
    Anatomical, Physical, Chemical, and Biological Durability Properties of Two Rattan Species of Different Diameter Classes2022In: Forests, E-ISSN 1999-4907, Vol. 13, no 1, article id 132Article in journal (Refereed)
    Abstract [en]

    Rattan cane is an important forest product with economic value. Its anatomical, physical, and biological properties vary with the cane height. This makes it difficult to select the appropriate cane diameter for harvesting. Understanding the material properties of rattan cane with different diameter sizes is important to enhance its utilization and performance for different end uses. Thus, the present study was performed on two rattan species, Calamus zollingeri and Calamus ornatus, at two different cane heights (bottom/mature and top/juvenile). Calamus zollingeri was studied at diameter classes of 20 mm and 30 mm, while Calamus ornatus was analyzed at a diameter class of 15 mm. The anatomical properties, basic density, volumetric swelling, dynamic moisture sorption, and biological durability of rattan samples were studied. The results showed that C. zollingeri with a 20 mm diameter exhibited the highest basic density, hydrophobicity, dimensional stability, and durability against mold and white-rot (Trametes versicolor) fungi. As confirmed by anatomical studies, this could be due to the higher vascular bundle frequency and longer thick-walled fibers that led to a denser structure than in the other categories. In addition, the lignin content might have a positive effect on the mass loss of different rattan canes caused by white-rot decay.

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  • 2.
    Andersson, Lisbet
    et al.
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Almerud Österberg, Sofia
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Kronoberg County Council, Sweden.
    Johansson, Pauline
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Knutsson, Susanne
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    The interplay between children, their parents and anaesthesia staff during the child's anaesthesia - An observational study2022In: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 31, no 15-16, p. 2240-2251Article in journal (Refereed)
    Abstract [en]

    Aims and objectives To interpret and understand the interplay between children, their parents, and anaesthetic staff to gain a greater understanding of children being anaesthetised. Background Anaesthesia induction is a stressful procedure for the child and parents in the technologically advanced environment in the operating room (OR). Anaesthesia staff are a key resource for ensuring safety and interplays, but the meeting is often short, intensive, and can affect the child and the parent. Design A qualitative observational design with a hermeneutic approach. Methods Twenty-seven non-participant observations were conducted and videotaped when children were being anaesthetised. The SRQR checklist was used. Results The result is presented as a theatre play with three headings; the scene, the actors, and the plot. The scene was not designed for the child or the parent's comfort and could lead to anxiety and insecurity. Four themes described the interplays: The need to be inviting and to be invited, The need for varying compliance, The need for mutual dependence, and The need to give and to receive emotional support. The plot could lead to uncertainty, and the interplay could change between being caring and uncaring depending on the actors. Conclusions The technologically advanced environment in the OR constituted an emotional obstacle, but the anaesthesia staff themselves can be a powerful resource creating a caring environment. The outcome of the plot may depend on the anaesthesia staff's bearing. Relevance to clinical practice A caring approach in the OR requires a willingness from the anaesthesia staff to invite the child to participate and find a balance between helping the parents to find their place in the OR and support them in supporting their child. The findings can start reflections in the unit on how to create a more caring environment.

  • 3.
    Anuar Bahari, Shahril
    et al.
    Universiti Teknologi MARA (UiTM), Malaysia.
    Nazarudin Zakaria, Mohd
    Universiti Teknologi MARA (UiTM), Malaysia.
    Osman, Syaiful
    Universiti Teknologi MARA (UiTM), Malaysia.
    Abu, Falah
    Universiti Teknologi MARA (UiTM), Malaysia.
    Jani Saad, Mohamad
    Malaysian Agricultural Research and Development Institute (MARDI), Malaysia.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Strength Performance and Microstructure Characteristic of Naturally-Bonded Fiberboard Composite from Malaysian Bamboo (Bambusa vulgaris)2022In: Journal of Renewable Materials, ISSN 2164-6325, E-ISSN 2164-6341, Vol. 10, no 10, p. 2581-2591Article in journal (Refereed)
    Abstract [en]

    This study investigated the mechanical properties and microstructural characteristics of fiberboard composite produced by naturally-bonded Malaysian bamboo fiber (Bambusa vulgaris). The components that obtained through soda pulping of bamboo culms such as fiber and black liquor, were used for the preparation of high-density fibreboard composite at two target densities of 850 and 950 kg/m3. The bamboo fiberboard composite (BFC) were then produced at 200°C and two pressing parameters of 125 and 175 s/mm. The mechanical properties, e.g., flexural strength and internal bonding (IB) of BFC samples were evaluated according to BS EN 310: 1993 and BS EN 319: 1993, respectively. It was found that the mechanical performance of the composite with 850 kg/m3 density was significantly higher than 950 kg/m3 ones, especially for the samples with 125 s/mm pressing parameter. Microstructure characteristic of the BFC samples illustrated that the fiber linkages were cracked in the composites with higher density, e.g., the composite with the density of 950 kg/m3 and also black liquor were slightly degraded at longer pressing time, which led to the reduction in mechanical properties, especially in IB strength.

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  • 4.
    Azizi, Soghra
    et al.
    Tarbiat Modares Univ, Iran.
    Tabari, Masoud
    Tarbiat Modares Univ, Iran.
    Abad, Ali Reza Fallah Nosrat
    Agr Res Educ & Extens Org AREEO, Iran.
    Ammer, Christian
    Georg August Univ Göttingen, Germany.
    Guidi, Lucia
    Univ Pisa, Italy.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Soil Inoculation With Beneficial Microbes Buffers Negative Drought Effects on Biomass, Nutrients, and Water Relations of Common Myrtle2022In: Frontiers in Plant Science, E-ISSN 1664-462X, Vol. 13, article id 892826Article in journal (Refereed)
    Abstract [en]

    Common myrtle (Myrtus communis L.) occurs in (semi-)arid areas of the Palearctic region where climate change, over-exploitation, and habitat destruction imperil its existence. The evergreen shrub is of great economic and ecological importance due to its pharmaceutical value, ornamental use, and its role in urban greening and habitat restoration initiatives. Under greenhouse conditions, we investigated the effect of soil inoculation with arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) on biomass allocation, water relations, and nutritional status of drought-stressed myrtle seedlings. Single and dual AMF (Funneliformis mosseae and Rhizophagus irregularis) and PGPR (Pseudomonas fluorescens and P. putida) soil inoculations were applied to myrtle seedlings growing under different soil water regimes (100, 60, and 30% of field capacity) for 6 months using a full factorial, completely randomized design. AMF and PGPR treatments, especially dual inoculations, alleviated negative drought effects on biomass and morpho-physiological traits, except for water-use efficiency, which peaked under severe drought conditions. Under the greatest soil water deficit, dual inoculations promoted leaf biomass (104%-108%), root biomass (56%-73%), mesophyll conductance (58%), and relative water content (1.4-fold) compared to non-inoculated controls. Particularly, dual AMF and PGPR inoculations stimulated nutrient dynamics in roots (N: 138%-151%, P: 176%-181%, K: 112%-114%, Ca: 124%-136%, and Mg: 130%-140%) and leaves (N: 101%-107%, P: 143%-149%, K: 83%-84%, Ca: 98%-107%, and Mg: 102%-106%). Our findings highlight soil inoculations with beneficial microbes as a cost-effective way to produce highly drought resistant seedling stock which is vital for restoring natural myrtle habitats and for future-proofing myrtle crop systems.

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  • 5.
    Bader, Martin K.-F.
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Scherrer, Daniel
    Swiss Federal Institute for Forest, Switzerland.
    Zweifel, Roman
    Swiss Federal Institute for Forest, Switzerland.
    Körner, Christian
    University of Basel, Switzerland.
    Less pronounced drought responses in ring-porous than in diffuse-porous temperate tree species2022In: Agricultural and Forest Meteorology, ISSN 0168-1923, E-ISSN 1873-2240, Vol. 327, article id 109184Article in journal (Refereed)
    Abstract [en]

    Tree species differ in their physiological responses to drought, but the underlying causes are often unclear. Here we explored responses of radial growth to centennial drought events and sap flow (Fs) to seasonal drought in four mixed forests on either moist or drier sites in northwestern Switzerland. While the diffuse-porous species (Fagus sylvatica, Prunus avium, Tilia platyphyllos) showed marked growth reductions in 1976 and 2003, two known marker years for severe drought, growth of the two ring-porous species (Quercus petraea and Fraxinus excelsior) was less severely affected. During a dry early to midsummer, diffuse-porous species strongly reduced Fs at the two drier sites but not (or less so) at the two moister sites. Regardless of soil moisture availability, the deep- rooting, ring-porous trees invariably down-regulated Fs to 60–70% of their maxima in response to vapour pressure deficit (VPD) and maintained similar fluxes across sites, irrespective of upper soil moisture conditions. A generalised additive model of normalised Fs as a function of VPD and soil matric potential yielded a drought- sensitivity ranking of Fs led by the two insensitive ring-porous species followed by the diffuse-porous trees (ordered by increasing sensitivity: Fraxinus excelsior < Quercus petraea < Prunus avium < Acer pseudoplatanus < Fagus sylvatica < Tilia platyphyllos). In conclusion, ring-porous tree species exhibited stronger VPD-driven stomatal control over Fs, and tree-ring formation was less sensitive to severe drought than in their neighbouring diffuse-porous species. The Fs regulation explained the greater drought tolerance of the ring-porous trees.

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  • 6.
    Benavent-Celma, Clara
    et al.
    University of Aberdeen, UK.
    López-García, Noelia
    Swedish University of Agricultural Sciences, Sweden.
    Ruba, Tahmina
    University of Aberdeen, UK;Bangladesh Agricultural University, Bangladesh.
    Ściślak, Magdalena E.
    University of Aberdeen, UK.
    Street-Jones, David
    University of Aberdeen, UK.
    van West, Pieter
    University of Aberdeen, UK.
    Woodward, Stephen
    University of Aberdeen, UK.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Swedish University of Agricultural Sciences, Sweden.
    Current practices and emerging possibilities for reducing the spread of oomycete pathogens in terrestrial and aquatic production systems in the European Union2022In: Fungal Biology Reviews, ISSN 1749-4613, E-ISSN 1878-0253, Vol. 40, p. 19-36Article in journal (Refereed)
    Abstract [en]

    Diseases caused by oomycete pathogens are a global threat to forestry, agriculture and aquaculture. Because of their complex life cycles, characterised by dormant resting structures that enable their survival for years under hostile environmental conditions, reducing the spread of oomycetes is a challenging task. In this review, we present an overview of this challenge, starting from the need to understand the natural and anthropogenic dispersal pathways of these pathogens. Focusing on the European Union, we explore current legislation that forms a backbone for biosecurity protocols against the spread of oomycetes through trade and transport. We discuss the options for prevention, containment and long-term management of oomycetes in different production settings, emphasising the importance of prevention as the most cost-efficient strategy to reduce the spread of these pathogens. Finally, we highlight some of the new and emerging technologies and strategies as potential tools in the integrated pest management of animal and plant diseases caused by oomycetes. We emphasise the urgency of actions to halt the global spread of these pathogens.

  • 7.
    Bravo, Giangiacomo
    et al.
    Linnaeus University, Faculty of Social Sciences, Department of Social Studies. Linnaeus University, Linnaeus Knowledge Environments, Water. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Farjam, Mike
    Lund University, Sweden.
    Actions speak louder than words: Attitudes, behaviour, and partisan identity in a polarised environmental domain2022In: Energy Research & Social Science, ISSN 2214-6296, E-ISSN 2214-6326, Vol. 90, article id 102547Article in journal (Refereed)
    Abstract [en]

    The relationship between environmental attitudes and behaviour is known to be weak, especially when these variables are measured as self-report items in surveys. In addition many environmental questions are highly polarised, making it even more problematic to use survey data to inform policy making. To better explore the attitude–behaviour gap in the context of environmental policies, along with its interaction with partisan identity, we ran an online experiment with 805 U.S. residents. Four key variables – environmental attitudes, self-reported environmental behaviour, observed environmental behaviour (in the form of carbon-offset credit purchase), and partisan identity – were measured, and their interactions in promoting pro-environmental behaviour were analysed. We found that (1) self-reported and real behaviour are almost uncorrelated and (2) partisan identity mainly predicted self-reported not actual environmental behaviour. These results suggest that policy-making needs to rely more on behavioural insight to test policies’ actual effects and to promote real improvement of the local and global environment.

  • 8.
    De Paz Urueña, Rafael
    et al.
    Universidad León, Spain.
    Baelo Alvarez, Roberto
    Universidad León, Spain.
    Fernandez Vilaz, Ana
    Universidade de Vigo, Spain.
    Diaz Redondo, Rebeca
    Universidade de Vigo, Spain.
    Sanchez Bermudez, Anxo
    Universidade de Vigo, Spain.
    Garea Oya, Eva
    Universidade de Vigo, Spain.
    Lastra Cid, René
    Universidade de Vigo, Spain.
    Grozavu, Adrian
    Université Alexandru Ioan Cuza de Iasi, Romania.
    Corneliu, Iatu
    Université Alexandru Ioan Cuza de Iasi, Romania.
    Anatone, MIchele
    Università di L’Aquila, Italy.
    Tozzi, Anna
    Università di L’Aquila, Italy.
    Forss, Jörgen
    Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Balciunaite, Daiva
    Ekonomihögskolan, Linnéuniversitetet.
    Philipson, Sarah
    Ezbakhe, Hassan
    Université Abdelmalek Essaâdi, Marocco.
    Kamili, Abderrahmane
    Université Abdelmalek Essaâdi, Marocco.
    El Kbiach, Mohamed
    Université Abdelmalek Essaâdi, Marocco.
    Reklaoui, Kamal
    Université Abdelmalek Essaâdi, Marocco.
    Bouziane, Khalid
    Université Internationale de Rabat, Marocco.
    El Ghazi, Abdellatif
    Université Internationale de Rabat, Marocco.
    Aggour, Mohamed
    Université Ibn Tofail de Kénitra, Marocco.
    Selmaoui, Karima
    Université Ibn Tofail de Kénitra, Marocco.
    Ghadi, Fattehallah
    Université Ibn Zohr, Marocco.
    Markazi, Rachid
    Université Ibn Zohr, Marocco.
    El Mouden, Ahmed
    Université Ibn Zohr, Marocco.
    Benmansour, Abdelhalim
    Université de Tlemcen, Algeria.
    Seladij, Chakib
    Université de Tlemcen, Algeria.
    Azzi, Ahmed
    Université de Tlemcen, Algeria.
    Brikci Nigassa, Mohammed Amine
    Université de Tlemcen, Algeria.
    Ykhlef, Nadia
    Université Constantine, Algeria.
    Bellel, Nadir
    Université Constantine. Algeria.
    Chaker, Abla
    Université Constantine, Algeria.
    Boufendi, Toufik
    Université Constantine, Algeria.
    Ajzoul, Taib
    Association pour la Promotion des Energies Renouvables, Algeria.
    Momate. Moderniser la formation sur les Energies Renouvelables (ER) au Maghreb: Transfer de l'expérience2017Report (Other academic)
    Abstract [en]

    The project aims to develop a DUT (University Diploma of Technology) type training in Renewable Energies engineering and to support the emergence of technology parks specializing in Renewable Energies. The objective is to develop skills allowing to acquire basic knowledge on the production of electricity from renewable energies (wind, solar, photovoltaic, etc.). The project intends to launch a training program such as the DUT (University Diploma of Technology) in Renewable Energy Engineering and to support the appearance of engineers specializing in Renewable Energy. Para ello claims to desarrollar competences that allow to acquire basic knowledge sober the production of electrical energy from renewable energies (electrical, solar, photovoltaic, etc.)

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  • 9.
    Eriksson, Ljusk Ola
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    A Tool for Long-Term Forest Stand Projections of Swedish Forests2022In: Forests, E-ISSN 1999-4907, Vol. 13, no 6, article id 816Article in journal (Refereed)
    Abstract [en]

    The analysis of forest management strategies at landscape and regional levels forms a vital part of finding viable directions that will satisfy the many services expected of forests. This article describes the structure and content of a stand simulator, GAYA, which has been adapted to Swedish conditions. The main advantage of the GAYA implementation compared to other resources is that it generates a large number of management programmes within a limited time frame. This is valuable in cases where the management programmes appear as activities in linear programming (LP) problems. Two methods that are engaged in the projections, a climate change response function and a soil carbon model, are designed to complement other methods, offering transparency and computational effectiveness. GAYA is benchmarked against projections from the Heureka system for a large set of National Forest Inventory (NFI) plots. The long-term increment for the entire NFI set is smaller for GAYA compared with Heureka, which can be attributed to different approaches for modelling the establishment of new forests. The carbon pool belonging to living trees shows the same trend when correlated to standing volume. The soil carbon pool of GAYA increases with increased standing volume, while Heureka maintains the same amount over the 100-year projection period.

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  • 10.
    Fagerberg, Nils
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Lohmander, Peter
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Eriksson, Ola
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Swedish University of Agricultural Sciences, Sweden.
    Olsson, Jan-Ola
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Poudel, Bishnu Chandra
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Evaluation of individual-tree growth models for Picea abies based on a case study of an uneven-sized stand in southern Sweden2022In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 37, no 1, p. 45-58Article in journal (Refereed)
    Abstract [en]

    To develop recommendations for tree selection in Continuous Cover Forestry (CCF), access to valid tools for simulating growth at individual tree-level is necessary. To assist efforts to develop such tools, in this study, long-term observation data from two uneven-sized Norway spruce plots in southern Sweden are used to evaluate old and new individual-tree growth models (two established Swedish models, two new preliminary models and included as a reference, a Finnish model). The plots' historical management records and site conditions are the same, but their last thinning treatment differs. Observed diameter increment at tree-level is investigated in relation to treatment. Individual tree growth residuals of tested models are evaluated in relation to tree diameter, treatment, projection length and sensitivity to the predictor mean stand age. Furthermore, the relations between displayed residuals and basal area local competition are analysed. The analyses indicate that active thinning made annual diameter increment independent of tree diameter above a threshold level, while the absence of thinning supported a concave relationship. All tested models displayed a significant linear bias leading to overestimation of small trees' growth and increasing underestimations of larger trees' growth with tree diameter. All distance-independent models displayed residual trends related to local competition.

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  • 11.
    Fagerberg, Nils
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Olsson, Jan-Ola
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Lohmander, Peter
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Andersson, Martin
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Individual-tree distance-dependent growth models for uneven-sized Norway spruce2022In: Forestry (London), ISSN 0015-752X, E-ISSN 1464-3626, Vol. 95, p. 634-646Article in journal (Refereed)
    Abstract [en]

    Individual tree selection (ITS) is one option to manage uneven-sized forest ecosystems. However, scientifically based field guidelines adapted to ITS and economic profitability are rare, often because there is a lack of suitable tree models to use in growth and treatment simulations. The objective of this study is to develop individual-tree distance-dependent growth models focusing on Norway spruce dominated uneven-sized stands. Three models of different complexity, but with the same structural basis, are presented, followed by some examples of growth patterns for the subject trees. The data include 1456 trees (307 sample trees) collected from five sites in southern Sweden. The basic model (S) depends on subject tree size as the predictor, the second model (SD) adds distance to competitors as a predictor, and the third model (SDC) adds crown ratio as a predictor to the structure. R-Adj(2) increases with number of predictors from 0.48 to 0.58 to 0.62. The levels of RMSE improve accordingly from 5.02 cm(2) year(-1) (S) to 4.43 cm(2) year(-1) (SD) and 4.26 cm(2) year(-1) (SDC). The present calibration range and model structures primarily make the models suitable for management simulation of individual-tree selection of Norway spruce in southern Sweden. The format of the models allows for further extension with additional predictors and calibration data with greater coverage.

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  • 12.
    Felton, Adam
    et al.
    Swedish University of Agricultural Sciences, Sweden.
    Felton, Annika M.
    Swedish University of Agricultural Sciences, Sweden.
    Wam, Hilde Karin
    NIBIO, Norway.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Wallgren, Märtha
    Skogforsk, Sweden.
    Löf, Magnus
    Swedish University of Agricultural Sciences, Sweden.
    Sonesson, Johan
    Skogforsk, Sweden.
    Lindbladh, Matts
    Swedish University of Agricultural Sciences, Sweden.
    Björkman, Christer
    Swedish University of Agricultural Sciences, Sweden.
    Blennow, Kristina
    Swedish University of Agricultural Sciences, Sweden;Lund University, Sweden.
    Cleary, Michelle
    Swedish University of Agricultural Sciences, Sweden.
    Jonsell, Mats
    Swedish University of Agricultural Sciences, Sweden.
    Klapwijk, Maartje J.
    Swedish University of Agricultural Sciences, Sweden.
    Niklasson, Mats
    Swedish University of Agricultural Sciences, Sweden.
    Petersson, Lisa
    Swedish University of Agricultural Sciences, Sweden.
    Rönnberg, Jonas
    Swedish University of Agricultural Sciences, Sweden.
    Sang, Åsa Ode
    Swedish University of Agricultural Sciences, Sweden.
    Wrethling, Fredrika
    Swedish University of Agricultural Sciences, Sweden.
    Hedwall, Per-Ola
    Swedish University of Agricultural Sciences, Sweden.
    Forest biodiversity and ecosystem services from spruce-birch mixtures: The potential importance of tree spatial arrangement2022In: Environmental Challenges, ISSN 2667-0100, Vol. 6, article id 100407Article in journal (Refereed)
    Abstract [en]

    There is increasing empirical support for the biodiversity and ecosystem service (ES) benefits of mixed-species production forests. However, few studies control for the spatial arrangement of the trees within mixtures to determine the influence that clustering the tree species (patch scale mixtures), versus evenly dispersing them (intimate scale mixtures), may have for biodiversity and ES outcomes. To highlight the potential implications of altering tree spatial arrangement in mixtures, and the need to fill related knowledge gaps, here we provide a qualitative multi-disciplinary overview of ecological and socio-economic drivers with the potential to alter biodiversity, ecosystem services, and management-related outcomes from patch versus intimate scale mixtures. We focused our overview on even-aged mixtures of Norway spruce (Picea abies) and birch (Betula pendula or B. pubescens) in Sweden, which enabled us to contrast findings within a biogeographical and silvicultural setting. Specifically, we targeted implications for biodiversity (understory vascular plants, epiphytic lichens, saproxylic beetles, birds), biomass production, harvesting costs, management ease, recreation and aesthetics, cervid game, as well as abiotic and biotic risks (wind, fire, pathogens, pests, browsing damage). In the absence of direct empirical evidence, we primarily relied on expert inference from theory and relevant empirical studies sourced from the Fennoscandian region, and further afield if needed. Collectively these efforts allowed us to develop a number of informed hypotheses indicating that for spruce-birch mixtures in this region, patch scale mixtures may have the potential to favour the diversity of several forest dependant taxonomic groups, cervid game and reduce harvesting costs, whereas intimate mixtures may have the potential to reduce pathogen and pest damage, and likewise, potentially benefit production outcomes. Current knowledge was too limited, inconsistent or context dependant to even tentatively infer outcomes for fire risk, wind damage, browsing damage, management ease, recreational and aesthetic outcomes. We emphasize that our hypotheses require testing, but are sufficient to (1) highlight the likely importance of spatial-scale to biodiversity and ecosystem services outcomes in mixed-species production forests, (2) caution against generalization from mixture studies that lack scale considerations, and (3) motivate the targeted consideration of spatial grain in future mixture studies.

  • 13.
    Forslund, Helena
    et al.
    Linnaeus University, School of Business and Economics, Department of Management Accounting and Logistics. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Björklund, Maria
    Linnaeus University, School of Business and Economics, Department of Management Accounting and Logistics. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Linköping University, Sweden.
    Toward Circular Supply Chains for Flat Glass: Challenges of Transforming to More Energy-Efficient Solutions2022In: Energies, E-ISSN 1996-1073, Vol. 15, no 19, article id 7282Article in journal (Refereed)
    Abstract [en]

    Even if flat glass is 100% recyclable, only 1% is currently handled in circular or closed-loop supply chains (CLSCs) in Sweden. This has an unnecessary environmental impact, indicating not only the potential for more energy-efficient solutions but also the challenges that need to be understood. The purpose of this article is to increase the knowledge of challenges in applying different types of more or less energy-efficient CLSCs for flat glass. Through a literature review, an overview of CLSC types, together with challenges in different areas, is provided. The CLSC types and challenges are corroborated in a flat glass context, including focus groups and expert interviews. Four CLSC types-two CLSCs based on remanufacturing, one on reconditioning, and one on reuse-are identified. A framework provides implications for both literature and practice. It contains 19 challenges-such as lack of large-scale actors, lack of material knowledge, lack of knowledge of customers' behavior, lack of promotion of flat glass CLSCs at many levels in society-in terms of both legislation and cost-and lack of business models-structured in four areas-material characteristics and quality, inefficient logistics systems, demand and supply, and means of control and costs. The least-applied CLSC includes almost every challenge and has a large upscaling potential, indicating the necessity of mitigating challenges. The framework identifies challenges not included in earlier flat glass literature. CLSC types are related to different challenge set-ups and different energy efficiency potentials, leading to expanded CLSC knowledge. One additional implication is that practitioners can identify potential CLSC types and understand their challenges from the perspective of several stakeholders. The participatory research methodology fills a methodological research gap within CLSC literature and provides important insights.

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  • 14.
    Franic, Iva
    et al.
    CABI, Switzerland;Swiss Fed Inst Forest Snow & Landscape Res WSL, Switzerland;Univ Bern, Switzerland.
    Prospero, Simone
    Swiss Fed Inst Forest Snow & Landscape Res WSL, Switzerland.
    Adamson, Kalev
    Estonian Univ Life Sci, Estonia.
    Allan, Eric
    Univ Bern, Switzerland.
    Attorre, Fabio
    Sapienza Univ Rome, Italy.
    Auger-Rozenberg, Marie Anne
    French National Research Institute for Agriculture, France.
    Augustin, Sylvie
    French National Research Institute for Agriculture, France.
    Avtzis, Dimitrios
    Hellen Agr Org Demeter, Greece.
    Baert, Wim
    Slovak Acad Sci, Slovakia.
    Barta, Marek
    Slovak Acad Sci, Slovakia.
    Bauters, Kenneth
    Meise Bot Garden, Belgium.
    Bellahirech, Amani
    Natl Res Inst Rural Engn Water & Forests INRGREF, Tunisia.
    Boron, Piotr
    Agr Univ Krakow, Poland.
    Braganca, Helena
    Inst Nacl Invest Agr & Vet IP INIAV IP, Portugal;ITQB NOVA, Portugal.
    Brestovanska, Tereza
    Silva Tarouca Res Inst Landscape & Ornamental Gar, Czech Republic.
    Brurberg, May Bente
    Norwegian Inst Bioecon Res, Norway;NMBU Norwegian Univ Life Sci, Norway.
    Burgess, Treena
    Murdoch Univ, Australia.
    Burokiene, Daiva
    Nat Res Ctr, Lithuania.
    Cleary, Michelle
    Swedish University of Agricultural Sciences, Sweden.
    Corley, Juan
    Inst Invest Forestales & Agr Bariloche INTA CONIC, Argentina.
    Coyle, David R.
    Clemson Univ, USA.
    Csoka, Gyorgy
    Univ Sopron, Hungary.
    Cerny, Karel
    Silva Tarouca Res Inst Landscape & Ornamental Gar, Czech Republic.
    Davydenko, Kateryna
    Ukrainian Res Inst Forestry & Forest Meliorat, Ukraine.
    de Groot, Maarten
    Slovenian Forestry Inst, Slovenia.
    Diez, Julio Javier
    Univ Valladolid INIA, Spain.
    Dogmus Lehtijarvi, H. Tugba
    Isparta Univ Appl Sci, Turkey.
    Drenkhan, Rein
    Estonian Univ Life Sci, Estonia.
    Edwards, Jacqueline
    La Trobe Univ, Australia;Agribio Ctr, Australia.
    Elsafy, Mohammed
    Swedish University of Agricultural Sciences, Sweden.
    Eotvos, Csaba bela
    Univ Sopron, Hungary.
    Falko, Roman
    Ukrainian Res Inst Mt Forestry, Ukraine.
    Fan, Jianting
    Zhejiang A&F Univ, China.
    Feddern, Nina
    Swiss Fed Inst Forest Snow & Landscape Res WSL, Switzerland.
    Furjes-Miko, Agnes
    Univ Sopron, Hungary.
    Gossner, Martin M.
    Swiss Fed Inst Forest Snow & Landscape Res WSL, Switzerland;Zhejiang A&F Univ, China;Swiss Fed Inst Technol, Switzerland.
    Grad, Bartlomiej
    Agr Univ Krakow, Poland.
    Hartmann, Martin
    Swiss Fed Inst Technol, Switzerland.
    Havrdova, Ludmila
    Silva Tarouca Res Inst Landscape & Ornamental Gar, Czech Republic.
    Horakova, Miriam Kadasi
    Slovak Acad Sci, Slovakia.
    Hrabetova, Marketa
    Silva Tarouca Res Inst Landscape & Ornamental Gar, Czech Republic.
    Justesen, Mathias Just
    Univ Copenhagen, Denmark.
    Kacprzyk, Magdalena
    Agr Univ Krakow, Poland.
    Kenis, Marc
    CABI, Switzerland.
    Kirichenko, Natalia
    Russian Acad Sci, Russia;Siberian Fed Univ, Russia.
    Kovac, Marta
    Croatian Forest Res Inst, Croatia.
    Kramarets, Volodymyr
    Ukrainian Natl Forestry Univ, Ukraine.
    Lackovic, Nikola
    Independent collaborator.
    Lantschner, Maria Victoria
    Inst Invest Forestales & Agr Bariloche INTA CONIC, Argentina.
    Lazarevic, Jelena
    Univ Montenegro, Montenegro.
    Leskiv, Marianna
    Ukrainian Natl Forestry Univ, Ukraine.
    Li, Hongmei
    CABI, China.
    Madsen, Corrie Lynne
    Univ Copenhagen, Denmark.
    Malumphy, Chris
    Fera Sci Ltd, UK.
    Matosevic, Dinka
    Croatian Forest Res Inst, Croatia.
    Matsiakh, Iryna
    Ukrainian Natl Forestry Univ, Ukraine.
    May, Tom W.
    Royal Bot Gardens Victoria, Australia.
    Meffert, Johan
    Minist Agr Nat & Food Qual, Netherlands.
    Migliorini, Duccio
    CNR, Italy.
    Nikolov, Christo
    Forestry Res Inst Zvolen, Slovakia.
    O'Hanlon, Richard
    Dept Agr Food & Marine, Ireland;AgriFood & Biosciences Inst AFBI, UK.
    Oskay, Funda
    Cankiri Karatekin Univ, Turkey.
    Paap, Trudy
    Univ Pretoria, South Africa;Kirstenbosch Res Ctr, South Africa.
    Parpan, Taras
    Ukrainian Res Inst Mt Forestry, Ukraine.
    Piskur, Barbara
    Slovenian Forestry Inst, Slovenia.
    Ravn, Hans Peter
    Univ Copenhagen, Denmark.
    Richard, John
    Tanzania Forestry Res Inst TAFORI, Tanzania.
    Ronse, Anne
    Meise Bot Garden, Belgium.
    Roques, Alain
    French National Research Institute for Agriculture Food and Environment (URZF INRAE), France.
    Ruffner, Beat
    Swiss Fed Inst Forest Snow & Landscape Res WSL, Switzerland.
    Sivickis, Karolis
    Nat Res Ctr, Lithuania.
    Soliani, Carolina
    Inst Invest Forestales & Agr Bariloche INTA CONIC, Argentina.
    Talgo, Venche
    Norwegian Inst Bioecon Res, Norway.
    Tomoshevich, Maria
    Russian Acad Sci, Russia.
    Uimari, Anne
    Nat Resources Inst Finland, Finland.
    Ulyshen, Michael
    US Forest Serv, USA.
    Vettraino, Anna Maria
    Univ Tuscia, Italy.
    Villari, Caterina
    Univ Georgia, USA.
    Wang, Yongjun
    Zhejiang A&F Univ, China.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Zlatkovic, Milica
    Univ Novi Sad, Serbia.
    Eschen, Rene
    CABI, Switzerland.
    Worldwide diversity of endophytic fungi and insects associated with dormant tree twigs2022In: Scientific Data, E-ISSN 2052-4463, Vol. 9, no 1, article id 62Article in journal (Refereed)
    Abstract [en]

    International trade in plants and climate change are two of the main factors causing damaging tree pests (i.e. fungi and insects) to spread into new areas. To mitigate these risks, a large-scale assessment of tree-associated fungi and insects is needed. We present records of endophytic fungi and insects in twigs of 17 angiosperm and gymnosperm genera, from 51 locations in 32 countries worldwide. Endophytic fungi were characterized by high-throughput sequencing of 352 samples from 145 tree species in 28 countries. Insects were reared from 227 samples of 109 tree species in 18 countries and sorted into taxonomic orders and feeding guilds. Herbivorous insects were grouped into morphospecies and were identified using molecular and morphological approaches. This dataset reveals the diversity of tree-associated taxa, as it contains 12,721 fungal Amplicon Sequence Variants and 208 herbivorous insect morphospecies, sampled across broad geographic and climatic gradients and for many tree species. This dataset will facilitate applied and fundamental studies on the distribution of fungal endophytes and insects in trees.

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  • 15.
    Gardner, Anna
    et al.
    Univ Birmingham, UK.
    Jiang, Mingkai
    Western Sydney Univ, Australia;Zhejiang Univ, China.
    Ellsworth, David S.
    Western Sydney Univ, Australia.
    MacKenzie, A. Robert
    Univ Birmingham, UK.
    Pritchard, Jeremy
    Univ Birmingham, UK.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Barton, Craig V. M.
    Western Sydney University, Australia.
    Bernacchi, Carl
    USDA ARS, USA.
    Calfapietra, Carlo
    Natl Res Council Italy CNR, Italy.
    Crous, Kristine Y.
    Western Sydney Univ, Australia.
    Dusenge, Mirindi Eric
    Univ Western Ontario, Canada.
    Gimeno, Teresa E.
    CREAF, Spain;Basque Ctr Climate Change BC3, Spain.
    Hall, Marianne
    Lund University, Sweden.
    Lamba, Shubhangi
    University of Gothenburg, Sweden.
    Leuzinger, Sebastian
    Auckland Univ Technol, New Zealand.
    Uddling, Johan
    University of Gothenburg, Sweden.
    Warren, Jeffrey
    Oak Ridge National Laboratory, USA.
    Wallin, Göran
    University of Gothenburg, Sweden.
    Medlyn, Belinda E.
    Western Sydney Univ, Australia.
    Optimal stomatal theory predicts CO2 responses of stomatal conductance in both gymnosperm and angiosperm trees2023In: New Phytologist, ISSN 0028-646X, E-ISSN 1469-8137, Vol. 237, no 4, p. 1229-1241Article in journal (Refereed)
    Abstract [en]

    Optimal stomatal theory predicts that stomata operate to maximise photosynthesis (A(net)) and minimise transpirational water loss to achieve optimal intrinsic water-use efficiency (iWUE). We tested whether this theory can predict stomatal responses to elevated atmospheric CO2 (eCO(2)), and whether it can capture differences in responsiveness among woody plant functional types (PFTs). We conducted a meta-analysis of tree studies of the effect of eCO(2) on iWUE and its components A(net) and stomatal conductance (g(s)). We compared three PFTs, using the unified stomatal optimisation (USO) model to account for confounding effects of leaf-air vapour pressure difference (D). We expected smaller g(s), but greater A(net), responses to eCO(2) in gymnosperms compared with angiosperm PFTs. We found that iWUE increased in proportion to increasing eCO(2) in all PFTs, and that increases in A(net) had stronger effects than reductions in g(s). The USO model correctly captured stomatal behaviour with eCO(2) across most datasets. The chief difference among PFTs was a lower stomatal slope parameter (g(1)) for the gymnosperm, compared with angiosperm, species. Land surface models can use the USO model to describe stomatal behaviour under changing atmospheric CO2 conditions.

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  • 16.
    Ghavidel, Amir
    et al.
    University of Iasi, Romania.
    Bak, Miklós
    University of Sopron, Hungary.
    Hofmann, Tamás
    University of Sopron, Hungary.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Vasilache, Viorica
    University of Iasi, Romania.
    Sandu, Ion
    Academy of Romanian Scientists (AOSR), Romania;Romanian Inventors Forum, Romania.
    Comparison of chemical compositions in wood and bark of Persian silk tree (Albizia julibrissin Durazz)2022In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 17, no 6, p. 759-770Article in journal (Refereed)
    Abstract [en]

    This research was conducted to identify and compare the chemical compositions in Persian silk tree(Albizia julibrissin Durazz.) from different parts of wood and bark, using Fourier Transform Infrared(FTIR) Spectroscopy, gas and liquid chromatography coupled to mass spectrometry (GC-MS, LCMS),and elemental analysis. FTIR analysis showed significant differences in the chemical structureof bark and wood at peaks that belong to the cellulose and hemicelluloses. According to theresults, the C-O-C asymmetric stretch vibration in cellulose and hemicelluloses peak of Persian silktree was lower in the bark and ѵC=O in quinone or p-quinone peak was higher in the bark. Theresults of GC-MS showed 12 chemical constituents in the bark and 43 in the wood, respectively.Among these, hexadecanoic acid and inositol were in common. According to the LC-MS analyses,bark samples were rich in lignan compositions and triterpenoid saponins, whereas wood was poorin these compositions. Altogether 61 compositions have been tentatively identified and describedfrom bark and wood tissues; many of them were identified for the first time. Energy-dispersive Xray(EDX) spectrometry illustrated that the bark contained iron and aluminium, sodium,phosphorus, sulphur and chlorine, while these elements did not exist in wood.

  • 17.
    Ghavidel, Amir
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Jorbandian, Amin
    University of Tehran, Iran.
    Bak, Miklós
    University of Sopron, Hungary.
    Gelbrich, Jana
    Leibniz-IWT, Germany.
    Morrell, Jeffrey J.
    University of the Sunshine Coast, Australia.
    Sandu, Ion
    Academy of Romanian Scientists (AOSR), Romania;Romanian Inventors Forum, Romania.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Michigan Technological University , USA.
    Degradation assessment of archaeological oak (Quercus spp.) buried under oxygen-limited condition2023In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 77, no 3, p. 198-207Article in journal (Refereed)
    Abstract [en]

    The biological deterioration of archaeological wood under oxygen-limited conditions varies due to the limited activities of microorganisms. It is essential to expand the knowledge of the degradation types and the status of archaeological monuments for selecting the proper consolidates. The physical, chemical, and anatomical properties of approximately 600–650 year old archaeological oak collected from an archaeological site in Iasi-Romania were analysed to assess the quality and to identify the degradation types. The results were compared with similar tests on recently-cut oak. X-ray photoelectron spectroscopy (XPS) revealed the presence of more lignin-related peaks in the archaeological oak, which likely reflected the degradation of the wood carbohydrates as evidenced by the decreased oxygen-to-carbon ratio Cox/Cnon-ox. The differences in cellulose crystallinity were not significant suggesting that any cellulose degradation occurred in the amorphous regions. This was also reflected in the dynamic water vapor sorption analysis where the differences in sorption isotherms and hysteresis of archaeological and recently-cut oaks were marginal. Microscopic analysis of the oak cells illustrated bacterial degradation patterns, while the field emission scanning electron microscopy (FESEM) showed the presence of erosion bacteria in the archaeological oak collected from the site with low oxygen conditions.

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  • 18.
    Gholamiyan, Hadi
    et al.
    University of Tehran, Iran.
    Ashouri, Javad
    Shahid Rajaee Teacher Training University, Iran.
    Ahmadi, Peyman
    University of Tehran, Iran.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Michigan Technological University, USA.
    Surface Wettability and Coating Performance of Plasma-Treated Wood-Based Composite Panels2022In: Coatings, ISSN 2079-6412, Vol. 12, no 12, article id 1894Article in journal (Refereed)
    Abstract [en]

    The effect of dielectric barrier discharge (DBD) plasma treatment was studied on the surface characteristics and coating performance of transparent epoxy resin on the surface of particleboard (PB) and medium-density fiberboard (MDF). The plasma treatment was performed at three plasma energies (10, 15, and 20 kW) and three distances from the nozzle (10, 20, and 30 mm). Analyzing the samples by Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) indicated the changes of their chemical structure by means of the plasma treatment. The contact angle study showed a significant increase in surface wettability after plasma treatment with a pronounced effect observed by treatment parameters. The surface roughness was also significantly increased by the plasma treatment. The strength of the coating adhesion to the surface of the PB and MDF composite panels was also significantly improved by the plasma treatment, while no obvious trend was observed by treatment parameters. The highest adhesion strength of 2.03 MPa and 3.63 MPa were obtained by the PB and MDF samples, respectively, treated at a 10 mm nozzle distance and 15 kW plasma energy. The scratch resistance of the epoxy coatings showed a similar trend as the adhesion strength illustrating an inferior isolated surface of the coating after the plasma treatment.

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  • 19.
    Gholamiyan, Hadi
    et al.
    University of Tehran, Iran.
    Gholampoor, Behnam
    University of Tehran, Iran.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Application of Waterborne Acrylic and Solvent-Borne Polyester Coatings on Plasma-Treated Fir (Abies alba M.) Wood2022In: Materials, E-ISSN 1996-1944, Vol. 15, no 1, article id 370Article in journal (Refereed)
    Abstract [en]

    This research investigates the effect of plasma treatment with air, nitrogen (N2), and carbon dioxide (CO2) gases on the performance of waterborne (acrylic) and solvent-borne (polyester) coated fir (Abies alba M.) wood samples. The properties of the plasma-coated samples were analyzed before and after exposure to accelerated weathering and compared with those of untreated and solely treated ones. According to pull-off testing, the coating adhesion of the wood samples was considerably improved by plasma treatment, and obvious differences were observed between different plasma gases. The effect was more pronounced after the weathering test. Similar results were obtained for the abrasion resistance of the samples. The water contact angle measurement illustrated more hydrophilic character in the solely plasma-treated wood in comparison with the untreated wood. The application of coatings, however, strongly improved its hydrophobic character. The performances of waterborne and solvent-borne coatings on plasma-treated wood were comparable, although slightly better values were obtained by the waterborne system. Our results exhibit the positive effect of plasma treatment on coating performances and the increased weather resistance of the waterborne and solvent-borne coating systems on plasma-treated wood.

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  • 20.
    Grelle, Achim
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Skogens kolkretslopp i klimatarbetets tjänst2022In: Skogens värden: forskares reflektioner, Sundsvall: Mittuniversitetet , 2022, p. 54-55Chapter in book (Other academic)
  • 21.
    Grelle, Achim
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Hedwall, Per-Ola
    Swedish University of Agricultural Sciences, Sweden.
    Strömgren, Monika
    Swedish University of Agricultural Sciences, Sweden.
    Håkansson, Charlotta
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    From source to sink: recovery of the carbon balance in young forests2023In: Agricultural and Forest Meteorology, ISSN 0168-1923, E-ISSN 1873-2240, Vol. 330, article id 109290Article in journal (Refereed)
    Abstract [en]

    We analyzed ecosystem carbon fluxes from eddy-covariance measurements in five young forests in southernSweden where the previous stand had been harvested by clear-cutting or wind-felled: three stands with Norwayspruce (Picea abies (L.) Karst.), one with Scots pine (Pinus sylvestris) and one with Larch (Larix x eurolepis A.Henry). One of the spruce stands had the stumps harvested, one was fertilized and one without any specialtreatments. These stands returned from positive (sources) to negative (sinks) annual carbon fluxes 8–13 yearsafter disturbance, depending on site productivity and management. This corresponds to approximately 15% ofthe rotation periods at these sites. Extrapolation in combination with chronosequence data suggests thatconventionally regenerated stands reach a neutral carbon balance after approximately 30% of the rotationperiod. The lowest carbon emissions and shortest recovery time was observed in a stand where the stumps of thetrees, in addition to the stems and logging residues, were removed after harvest. This stand not only returned to acarbon sink within this time period but the total carbon gains since disturbance also equaled the total losses afteronly 11 years. These results stress that production stands in southern Sweden are carbon sources during arelatively small part of the rotation period, and that this part can be considerably shortened by measures thatincrease productivity or reduce the amount of woody debris left after disturbance.

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  • 22.
    Hosseinpourpia, Reza
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Eceiza, Arantxa
    University of the Basque Country UPV/EHU, Spain.
    Adamopoulos, Stergios
    Polyurethane Wood Adhesives Prepared from Modified Polysaccharides2022In: Polymers, E-ISSN 2073-4360, Vol. 14, no 3, article id 539Article in journal (Refereed)
    Abstract [en]

    This study investigated the performance of polyurethane adhesives prepared with various combinations of wheat starch that had been modified by isophorone diisocyanate (MS), two polyol types (1,3-propanediol (PD) and glycerol (Gly)), native wheat starch (NS), and 4,4′-diphenylmethane diisocyanate (pMDI) at a NCO:OH weight ratio of 1:1. Two more adhesives were also synthesized with NS, PD, or Gly and pMDI blends and served as controls. The thermal behavior of the adhesives before and after the curing process, as well as their rheological performance and lap shear strength, were analyzed. Differential scanning calorimetry (DSC) showed a reduction in curing temperature and heat by adding MS. The thermal stability of the cured adhesives was slightly increased by MS addition. The viscosity of the adhesives that contained MS substantially increased at a linear ascendant ramp of shear, while the controls exhibited relatively low viscosity during the whole shear rate spectrum from 0.1 to 100 s−1. The tensile shear strength of wood veneers was also significantly increased by the incorporation of MS under both dry and wet measuring conditions. The maximum dry shear strength was obtained for the adhesive with Gly polyol and a higher content of MS and was comparable to the control adhesive with pMDI.

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  • 23.
    Karimi, Amir
    et al.
    Tarbiat Modares Univ, Iran.
    Tabari, Masoud
    Tarbiat Modares Univ, Iran.
    Javanmard, Zeinab
    Tarbiat Modares Univ, Iran.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Drought Effects on Morpho-Physiological and Biochemical Traits in Persian Oak and Black Poplar Seedlings2022In: Forests, E-ISSN 1999-4907, Vol. 13, no 3, article id 399Article in journal (Refereed)
    Abstract [en]

    In many arid and semi-arid regions, increasing water scarcity pushes woody species to their physiological limits, making strong drought resistance essential for adaptive forest management. Here, we examined morpho-physiological and biochemical drought responses of the forestry-relevant Persian oak (Quercus brantii Lindl.) and black poplar (Populus nigra L.). In a 120-day greenhouse pot experiment, seedlings were subjected to three watering regimes (FC100, FC60, and FC30, indicating percentages of field capacity). Under FC100 conditions, all biomass measures and the total and specific leaf area of oak were significantly greater compared to those of poplar. FC60-exposed poplar seedlings exhibited strong declines in relative water content (RWC; -33%) and carotenoids (-46%) and a surge in electrolyte leakage (EL; +51%), while these parameters did not change significantly in oak. Although both species showed 80% EL under FC30 conditions, poplar suffered more severe drought damage than oak as evidenced by a 65% lower survival, stronger reductions in RWC and total chlorophyll, as well as stronger increases in oxidative stress markers. Accordingly, poplar seedlings displayed a drought-related 56% decline in quality index while only statistically insignificant reductions occurred in oak seedlings. The superior drought resistance of oak seedlings implies economically more viable nursery production and better seedling establishment, suggesting a shift towards Persian oak-dominated forestry in its natural range under future climate projections.

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  • 24.
    Knutsson, Susanne
    et al.
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Axelsson, Johanna
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Lindqvist, Gunilla
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    An application of the caritative caring approach - nursing students' experiences of practising caring and uncaring encounters by simulation at a clinical training centre2022In: International Journal of Qualitative Studies on Health and Well-being, ISSN 1748-2623, E-ISSN 1748-2631, Vol. 17, no 1, article id 2100610Article in journal (Refereed)
    Abstract [en]

    Purpose Nurses' lack of competence to be caring affects patients' health and patients describe a desire for more individual and compassionate care. Nursing education tends, however, to focus less on the caring approach in nursing practice and more on developing knowledge in psychomotor skills. The aim of this study was to describe nursing students' experiences of simulating caring and uncaring encounters founded on the caritative perspective at a Clinical Training Centre (CTC). Method A qualitative, inductive approach using a qualitative latent content analysis. Written reflections of 49 students were analysed. Findings By intertwining reflection with acting and observation, the students experienced that they achieved an open mind and gained an understanding of how important it was to treat the patient based on a caring approach. To act, first uncaring and thereafter caring, gave them an awakening. The students were touched and an overwhelming feeling of suddenly understanding human uniqueness and vulnerability appeared. Conclusions To simulate caritative caring and uncaring encounters at the CTC enhanced students' knowledge and understanding about caring and strengthened their prerequisites to acquire a caritative ontological basic view and attitude which in the long run may lead to an increased feeling of patient well-being in the encounter.

  • 25.
    Martinez-Arias, Clara
    et al.
    Univ Politecn Madrid, Spain.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Solla, Alejandro
    Univ Extremadura, Spain.
    Antonio Martin, Juan
    Univ Politecn Madrid, Spain.
    Rodriguez-Calcerrada, Jesus
    Univ Politecn Madrid, Spain.
    Beneficial and pathogenic plant-microbe interactions during flooding stress2022In: Plant, Cell and Environment, ISSN 0140-7791, E-ISSN 1365-3040, Vol. 45, no 10, p. 2875-2897Article in journal (Refereed)
    Abstract [en]

    The number and intensity of flood events will likely increase in the future, raising the risk of flooding stress in terrestrial plants. Understanding flood effects on plant physiology and plant-associated microbes is key to alleviate flooding stress in sensitive species and ecosystems. Reduced oxygen supply is the main constrain to the plant and its associated microbiome. Hypoxic conditions hamper root aerobic respiration and, consequently, hydraulic conductance, nutrient uptake, and plant growth and development. Hypoxia favours the presence of anaerobic microbes in the rhizosphere and roots with potential negative effects to the plant due to their pathogenic behaviour or their soil denitrification ability. Moreover, plant physiological and metabolic changes induced by flooding stress may also cause dysbiotic changes in endosphere and rhizosphere microbial composition. The negative effects of flooding stress on the holobiont (i.e., the host plant and its associated microbiome) can be mitigated once the plant displays adaptive responses to increase oxygen uptake. Stress relief could also arise from the positive effect of certain beneficial microbes, such as mycorrhiza or dark septate endophytes. More research is needed to explore the spiralling, feedback flood responses of plant and microbes if we want to promote plant flood tolerance from a holobiont perspective.

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  • 26.
    Mårtensson, Sophie
    et al.
    Jönköping University, Sweden.
    Knutsson, Susanne
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Univ N Carolina, USA.
    Hodges, Eric A.
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Sherwood, Gwen
    Linnaeus University, Faculty of Health and Life Sciences, Department of Health and Caring Sciences.
    Broström, Anders
    Jönköping University, Sweden;Linköping University Hospital, Sweden.
    Björk, Maria
    Jönköping University, Sweden.
    Undergraduate nursing students' experiences of practicing caring behaviours with standardised patients2023In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 37, no 1, p. 271-281Article in journal (Refereed)
    Abstract [en]

    Rationale Undergraduate nursing students' learning opportunities to practice caring behaviours to assure compassionate and competent nursing practice with standardised patients are few. Earlier studies primarily focused on practicing communication skills in relation to mental health or developing psychomotor skills while caring for a patient with a specific diagnosis. Aim The study aim was to describe undergraduate nursing students' experiences of practicing caring behaviours with a standardised patient. Method A sample of forty-eight undergraduate nursing students in semester four at a school of nursing in southern Sweden, enrolled in a full-time, 5-week, on-campus elective caring behaviour course, were at the first and last week individually video-recorded during two caring behaviour simulations encountering a standardised patient. After observing each of their video-recordings, students completed written reflections focusing on their own compassionate and competent verbal and nonverbal caring behaviour. In total, 96 individual written reflections were analysed using qualitative content analysis to describe the experience. Results One main theme emerged: The challenge of being mindfully present in patient encounters. Four themes further described the experience: A challenging but realistic learning experience, learning the impact of nonverbal behaviour, recognising the complexity of verbal behaviour, and learning to be with the patient instead of only doing for the patient. Conclusion When caring is intertwined with visible and realistic nursing practice in simulations using standardised patients it facilitates undergraduate nursing students learning compassionate and competent caring behaviour. The learning experience opened the students' eyes to the impact of practicing caring, recognising that being with is not the same as doing for the patient, and thus, how challenging it is to be mindfully present in patient encounters. Designing caring behaviour simulations with standardised patients is a feasible and efficacious educational learning didactic to facilitate students' learning caring behaviour and enhancing patients' experiences.

  • 27.
    Neitzel, Nicolas
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Walther, Thomas
    IKEA Industry AB, Sweden.
    Adamopoulos, Stergios
    Swedish University of Agricultural Sciences, Sweden.
    Alternative Materials from Agro-Industry for Wood Panel Manufacturing—A Review2022In: Materials, E-ISSN 1996-1944, Vol. 15, no 13, p. 4542-4542Article in journal (Refereed)
    Abstract [en]

    The growing demand for wood-based panels for buildings and furniture and the increasing worldwide concern for reducing the pressure on forest resources require alternatives to wood raw materials. The agricultural industry not only can provide raw materials from non-wood plants but also numerous residues and side streams. This review supplies an overview of the availability, chemical composition, and fiber characteristics of non-wood lignocellulosic materials and agricultural residues, i.e., grow care residues, harvest residues, and process residues, and their relevance for use in wood panel manufacturing. During the crop harvest, there are millions of tons of residues in the form of stalks, among other things. Usually, these are only available seasonally without using storage capacity. Process residues, on the other hand, can be taken from ongoing production and processed further. Fiber characteristics and chemical composition affect the panel properties. Alternatives to wood with long fibers and high cellulose content offer sufficient mechanical strength in different panel types. In general, the addition of wood substitutes up to approximately 30% provides panels with the required strength properties. However, other parameters must be considered, such as pressing temperature, adhesive type, press levels, and pretreatments of the raw material. The search for new raw materials for wood panels should focus on availability throughout the year, the corresponding chemical requirements and market competition. Panel type and production process can be adapted to different raw materials to fit niche products.

  • 28. Normark, Erik
    et al.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Nya och gamla skogsskötselstrategier och skogsskador2022In: Kungl. Skogs- och lantbruksakademiens tidskrift, ISSN 0023-5350, Vol. 161, no 7, p. 40-43Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    I avsnittet diskuteras möjligheten att påverka skogens hälsa genom aktiv skogsskötsel som bland annat omfattar val av föryngringsmaterial, trädslag och gallringar som påverkar stamtätheten. Diskussionen sammanfattar resultate från KSLA:s Skogsskadeekonomiska workshop "Skogsskötsel för skogens hälsa" som organiserades i november 2021

  • 29.
    Ode Sang, Åsa
    et al.
    Swedish University of Agricultural Sciences, Sweden.
    Thorpert, Petra
    Swedish University of Agricultural Sciences, Sweden.
    Fransson, Ann-Mari
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Planning, Designing, and Managing Green Roofs and Green Walls for Public Health: An Ecosystem Services Approach2022In: Frontiers in Ecology and Evolution, E-ISSN 2296-701X, Vol. 10, article id 804500Article, review/survey (Refereed)
    Abstract [en]

    Installing green roofs and green walls in urban areas is suggested to supply multiple ecosystem services of benefit to human health and well-being. In a three-step literature review, we examined current knowledge on the link between public health and green roofs and green walls. A systematic search identified 69 scientific articles on green roofs/walls with a public health discourse. These articles were categorized according to type of health path covered (reduction of temperature, air pollution, noise or environmental appraisal) and coverage of issues of relevance for strategies on planning, design/construction, and maintenance of green roofs and green walls. Articles identified through the structured search were complemented with reviews (with no explicit public health rationale) covering reduction of noise, temperature, or air pollution and environmental appraisal. Other relevant studies were identified through snowballing. Several of the articles provided guidelines for optimizing the effect of green roofs/walls in supporting ecosystem services and maximizing well-being benefits to support health pathways identified. These included specifications about planning issues, with recommended spatial allocation (locations where people live, sun-exposed for maximum ambient temperature reduction) and with physical access needed for environmental appraisal. Recommendations regarding design parameters covered substrate depth (deeper generally being better), plant choices (more diverse roofs providing more services), and maintenance issues (moist substrate positively correlated with heat reduction).

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  • 30.
    Osman, Syaiful
    et al.
    Universiti Teknologi MARA, Malaysia.
    Ahmad, Mansur
    Universiti Teknologi MARA, Malaysia.
    Zakaria, Mohd Nazarudin
    Universiti Teknologi MARA, Malaysia.
    Bakar, Balkis Fatomer A.
    Universiti Putra Malaysia Serdang, Malaysia.
    Abu, Falah
    Universiti Teknologi MARA, Malaysia.
    Kamarudin, Siti Hasnah
    Universiti Teknologi MARA, Malaysia.
    Bahari, Shahril Anuar
    Universiti Teknologi MARA, Malaysia.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Variation of chemical properties, crystalline structure and calorific values of native Malaysian bamboo species2022In: Wood and Fiber Science, ISSN 0735-6161, Vol. 54, no 3, p. 173-186Article in journal (Refereed)
    Abstract [en]

    The chemical properties of four common Malaysian bamboo species locally known as Beting (Gigantochloa levis), Semantan (Gigantochloa scortechinii), Lemang (Schizostachyum brachyladum) and Akar (Bambusa vulgaris) were studied. Chemical analysis shows that the alkaline extractive content for Malaysian bamboo species studied was within 24.4% to 25.6%, ethanol-toluene extractive content for Malaysian bamboo species was within 4.0% to 7.2% and water extractive content was within 10.4% to 12.8%. The average value of holocellulose content for Malaysian bamboo was between 64.5% to 70.67%, Klason lignin within 25.3% to 28.4%, cellulose content was between 28.5% to 33.8% and α-cellulose content for all bamboo species was within the range of 40.7% to 47.9%. The crystallinity of bamboo samples was between 42.0 to 44.4%, indicating their semi-crystalline structure.  Heating value of bamboo ranged between 17.0 MJ/kg to 18.1 MJ/kg with G. scortechinii having the highest heating value.. The Inductive Couple Plasma Atomic Emission Spectroscopy (ICP-ES) analysis showed that Potassium (K) and Calcium (C) were the major elements in the ash of all bamboo samples. This study demonstrates the potential of native bamboo species as an alternative sustainable raw material to wood for a wide range of applications.

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  • 31.
    Persson, Magnus
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Trubins, Renats
    Swedish University of Agricultural Sciences, Sweden.
    Eriksson, Ljusk Ola
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Swedish University of Agricultural Sciences, Sweden.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Sonesson, Johan
    Skogforsk, Sweden.
    Holmström, Emma
    Swedish University of Agricultural Sciences, Sweden.
    Precision thinning: a comparison of optimal stand-level and pixel-level thinning2022In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 37, no 2, p. 99-108Article in journal (Refereed)
    Abstract [en]

    Precision forestry allows decision-making on tree level or pixel level, as compared to stand-level data. However, little is known about the importance of precision in thinning decisions and its long-term effects on within-stand variation, stand economy and growth. In this study, silviculture was optimized for Net Present Value (NPV) in 20 conifer-dominated forest stands in hemi-boreal southern Sweden. The precision-thinning approach, Precision Thinning (PT), is compared with a stand-level approach, Stand Level Thinning (SLT) that is optimized for the same criteria but based on stand-level data. The results suggest no substantial long-term benefit or drawback in implementing thinning decisions based on pixel-level data as compared to stand-level data when optimizing stand economy. The result variables NPV and Mean annual increment of living stem volume (MAI(net)) were not higher for PT than for SLT. The within-stand variation in basal area (m(2)/ha(-1)) was lower at the end of the rotation compared to the start of the simulation for both SLT and PT. At the end of the rotation, SLT had higher variation in basal area compared to PT. However, pixel-level information enables adapting the silviculture to the within-stand variation which may favour other forest management goals than strictly financial goals.

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  • 32.
    Pugh, Andrew R.
    et al.
    Scion New Zealand Forest Res Inst, New Zealand.
    Romo, Cecilia M.
    Scion New Zealand Forest Res Inst, New Zealand.
    Clare, Graeme K.
    New Zealand Inst Plant & Food Res Ltd, New Zealand.
    Meurisse, Nicolas
    Scion New Zealand Forest Res Inst, New Zealand.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Scion New Zealand Forest Res Inst, New Zealand.
    Pawson, Stephen M.
    Scion New Zealand Forest Res Inst, New Zealand;Univ Canterbury, New Zealand.
    Temperature Effects on the Survival and Development of Two Pest Bark Beetles Hylurgus ligniperda F. (Coleoptera: Curculionidae) and Hylastes ater Paykull (Coleoptera: Curculionidae)2023In: Environmental Entomology, ISSN 0046-225X, E-ISSN 1938-2936, Vol. 52, no 1, p. 56-66Article in journal (Refereed)
    Abstract [en]

    Hylurgus ligniperda (F.) and Hylastes ater (Paykull) are secondary bark beetles that have successfully spread beyond their native range, particularly into Pinus spp. plantations in the Southern Hemisphere. They feed on the phloem and cambial regions of highly stressed and recently dead Pinus spp. Here H. ligniperda and H. ater egg, larval, and pupal survival and development rates were modeled. Survival was variably influenced by temperatures depending on the life stage, but general trends were for H. ligniperda to tolerate warmer temperatures in comparison to H. ater. Nonlinear models showed 26, 29, and 34 degrees C are the optimal temperature (maximum development rates) for the development of eggs, larvae, and pupae of H. ligniperda. In contrast, optimal temperature predictions were lower for H. ater, with estimates of 26, 22, and 23 degrees C for the development of eggs, larvae, and pupae, respectively. H. ligniperda pre-imaginal stages were more tolerant to high temperatures, and H. ater pre-imaginal stages were more tolerant to low temperatures. Understanding the thermal requirements and limits for development for these two pests can assist in modeling emergence times, their current and potential species distribution and have potential phytosanitary applications.

  • 33.
    Ravi, Sridevi
    et al.
    Auckland University of Technology, New Zealand.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Young, Tim
    Auckland University of Technology, New Zealand.
    Duxbury, Mark
    Auckland University of Technology, New Zealand.
    Clearwater, Michael
    University of Waikato, New Zealand.
    Macinnis-Ng, Cate
    University of Auckland, New Zealand.
    Leuzinger, Sebastian
    Auckland University of Technology, New Zealand.
    Are the well-fed less thirsty?: Effects of drought and salinity on New Zealand mangroves2022In: Journal of Plant Ecology, ISSN 1752-9921, E-ISSN 1752-993X, Vol. 15, no 1, p. 85-99Article in journal (Refereed)
    Abstract [en]

    Despite a large number of studies examining the effects of abiotic stress factors on plants, the mechanistic explanations of drought-induced tree mortality remain inconclusive and even less is known about how multiple stressors interact. The role of non-structural carbohydrates (NSCs) in preventing or postponing drought mortality is gaining attention. Here, we tested the role of NSCs in mitigating the effects of drought and salinity in New Zealand mangroves, Avicennia marina subsp. australasica. We experimentally manipulated plant NSC levels, prior to subjecting them to combinations of drought and salinity. Plant growth and survival rates were 2- and 3-fold higher in the high-NSC (H-NSC) group than in the low-NSC (L-NSC) group under high salinity and drought conditions, respectively. After 12 weeks under high salinity-high drought conditions, the H-NSC group showed higher stem hydraulic conductivity (281 +/- 50 mmol cm(-1) s(-1) MPa-1) compared with the L-NSC group (134 +/- 40 mmol cm(-1) s(-1) MPa-1). Although starch levels remained relatively constant, we found a 20% increase in soluble sugars in the stems of H-NSC group under high drought and high salinity in week 8 compared with week 12. Our results suggest (i) an important role of NSCs in mitigating the effects of low soil water potential caused by drought and salinity, and (ii) sink-limited growth under conditions of combined salinity and drought.

  • 34.
    Romeralo, Carmen
    et al.
    Swedish University of Agricultural Sciences, Sweden;Univ Valladolid INIA, Spain;Spanish Inst Agr & Food Res & Technol INIA, Spain.
    Martin-Garcia, Jorge
    Univ Valladolid INIA, Spain.
    Martinez-Alvarez, Pablo
    Gobierno Cantabria, Spain.
    Jordan Munoz-Adalia, E.
    Forest Sci Ctr Catalonia CTFC, Spain.
    Goncalves, Danilo Reis
    Carl von Ossietzky Univ Oldenburg, Germany.
    Torres, Esteban
    Ctr Invest Forestal Lourizan, Spain.
    Witzell, Johanna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Swedish University of Agricultural Sciences, Sweden.
    Javier Diez, Julio
    Univ Valladolid INIA, Spain.
    Pine species determine fungal microbiome composition in a common garden experiment2022In: Fungal ecology, ISSN 1754-5048, E-ISSN 1878-0083, Vol. 56, article id 101137Article in journal (Refereed)
    Abstract [en]

    The factors shaping the composition of microbial communities in trees remain poorly understood. We evaluated whether the core and satellite fungal communities in five pine species (Pinus radiata, Pinus pinaster, Pinus sylvestris, Pinus nigra, and Pinus uncinata) were shaped by the host species identity. Because the trees had earlier been inoculated with a fungal pathogen (Fusarium circinatum), we also explored the possibilities to detect its presence and potential co-occurrence networks. We found interspecific variation in the fungal community composition and abundance among the different tree species and the existence of a core microbiome that was independent of the host species. The presence of F. circinatum was confirmed in some samples through qPCR but the pathogen did not co-occur with a specific fungal community. The results highlight the importance of host species as a determinant of microbiome assembly in common environments.

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  • 35.
    Sendek, Agnieszka
    et al.
    Swiss Fed Res Inst WSL, Switzerland;Swiss Fed Inst Aquat Sci & Technol, Switzerland.
    Baity-Jesi, Marco
    Swiss Fed Inst Aquat Sci & Technol, Switzerland.
    Altermatt, Florian
    Swiss Fed Inst Aquat Sci & Technol, Switzerland;Univ Zurich, Switzerland.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Swiss Fed Res Inst WSL, Switzerland.
    Liebhold, Andrew M.
    US Forest Serv, USA;Czech Univ Life Sci Prague, Czech Republic.
    Turner, Rebecca M.
    Scion New Zealand Forest Res Inst, New Zealand.
    Roques, Alain
    Zool Forestiere, France.
    Seebens, Hanno
    Senckenberg Biodivers & Climate Res Ctr, Germany.
    Spaak, Piet
    Swiss Fed Inst Aquat Sci & Technol, Switzerland;Swiss Fed Inst Technol, Switzerland.
    Vorburger, Christoph
    Swiss Fed Inst Aquat Sci & Technol, Switzerland;Univ Canterbury, New Zealand.
    Brockerhoff, Eckehard G.
    Swiss Fed Res Inst WSL, Switzerland;Univ Canterbury, New Zealand.
    Fewer non-native insects in freshwater than in terrestrial habitats across continents2022In: Diversity & distributions: A journal of biological invasions and biodiversity, ISSN 1366-9516, E-ISSN 1472-4642, Vol. 28, no 11, p. 2303-2315Article in journal (Refereed)
    Abstract [en]

    Aim Biological invasions are a major threat to biodiversity in aquatic and terrestrial habitats. Insects represent an important group of species in freshwater and terrestrial habitats, and they constitute a large proportion of non-native species. However, while many non-native insects are known from terrestrial ecosystems, they appear to be less represented in freshwater habitats. Comparisons between freshwater and terrestrial habitats of invader richness relative to native species richness are scarce, which hinders syntheses of invasion processes. Here, we used data from three regions on different continents to determine whether non-native insects are indeed under-represented in freshwater compared with terrestrial assemblages. Location Europe, North America, New Zealand. Methods We compiled a comprehensive inventory of native and non-native insect species established in freshwater and terrestrial habitats of the three study regions. We then contrasted the richness of non-native and native species among freshwater and terrestrial insects for all insect orders in each region. Using binomial regression, we analysed the proportions of non-native species in freshwater and terrestrial habitats. Marine insect species were excluded from our analysis, and insects in low-salinity brackish water were considered as freshwater insects. Results In most insect orders living in freshwater, non-native species were under-represented, while they were over-represented in a number of terrestrial orders. This pattern occurred in purely aquatic orders and in orders with both freshwater and terrestrial species. Overall, the proportion of non-native species was significantly lower in freshwater than in terrestrial species. Main conclusions Despite the numerical and ecological importance of insects among all non-native species, non-native insect species are surprisingly rare in freshwater habitats. This is consistent across the three investigated regions. We review hypotheses concerning species traits and invasion pathways that are most likely to explain these patterns. Our findings contribute to a growing appreciation of drivers and impacts of biological invasions.

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  • 36.
    Sivrikaya, Hüseyin
    et al.
    Bartin Univ, Turkey.
    Hosseinpourpia, Reza
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Ahmed, Sheikh Ali
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Advanced Materials.
    Adamopoulos, Stergios
    Swedish university of agricultural sciences, Sweden.
    Vacuum-heat treatment of Scots pine (Pinus sylvestris L.) wood pretreated with propanetriol2022In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 17, no 5, p. 328-336Article in journal (Refereed)
    Abstract [en]

    Scots pine sapwood was pretreated with two levels of propanetriol (20% and 40% w/w glycerol), and then subjected to vacuum-heat treatment (VHT) at 180°C and 200°C. The treated samples were examined with respect to their weight and volumetric changes, mechanical properties, colour changes, and dynamic water vapour sorption. The weight of the samples after VHT did not change with increasing the temperature, but it was increased in glycerol pretreated samples. Combination of glycerol pretreatment and VHT decreased the maximum swelling. Total colour change was significantly higher during VHT at a higher temperature, while no obvious trend observed in the samples pretreated with glycerol. Modulus of elasticity (MOE) and modulus of rupture (MOR) were not affected by solely VHT, but strongly decreased after glycerol pretreatment. The equilibrium moisture content (EMC) of the samples decreased by VHT. The glycerol pretreatment caused a reduction in EMC values at a relative humidity (RH) below 60%, but considerably increased the moisture sorption in the RH above 75%. VHT slightly reduced the sorption hysteresis compared to untreated wood, but an apparent reduction in hysteresis observed by glycerol pretreatment. This indicates that the flexibility of the wood cell wall polymers increases due to glycerol pretreatment, which results in decreased MOE and sorption hysteresis values.

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  • 37.
    Svensson, Carl
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Löf, Magnus
    Swedish University of Agricultural Sciences, Sweden.
    Johansson, Ulf
    Swedish University of Agricultural Sciences, Sweden.
    Bergh, Johan
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Fertilisation and irrigation have no effects on growth of oak (Quercus robur, Q. petraea) stands on abandoned farmland in southwest Sweden2023In: Forest Ecology and Management, ISSN 0378-1127, E-ISSN 1872-7042, Vol. 529, article id 120700Article in journal (Refereed)
    Abstract [en]

    Low nutrient availability often limits productivity in northern forests. In a nutrient optimisation trial, we investigated the effects of fertilisation and irrigation on soil moisture, leaf area index (LAI) as well as height and radial growth in 25-year-old stands of pedunculate and sessile oak (Quercus robur L., Q. petraea (Matt.) Liebl.) growing on abandoned farmland in southwestern Sweden. Control (C), fertilisation (F), irrigation (I), and irrigation +fertilisation (IF) treatments were arranged in a randomized complete block design. End of growing season analysis of foliar nutrients guided the quantitative composition of next year’s fertiliser mix. Volumetric soil moisture (VWC) was significantly higher in the I and IF treatments compared to the C and F treated stands of both oak species. We did not observe a fertiliser-related reduction in VWC (except for 2015, when VWC in F- treated Q. robur stands was significantly lower than the control by about 18 %). This is in line with the unaffected LAI estimates (5.3–5.9) suggesting no stimulation of leaf production that could drive increases in transpiration with subsequent soil moisture depletion. There was no treatment ×year interaction for any of the growth-related variables. Treatments had no significant effects on basal area growth, which increased annually by 1.72 and 1.54 m2 ha-1 on average for Q. petraea and Q. robur, respectively. Pre-treatment height differences in Q. petraea stands (7–12 % taller trees in the C and IF plots) persisted throughout the study resulting in significant effects, while no significant differences in height occurred in Q. robur. Periodic annual volume increment varied more strongly following drier periods but there were no significant differences among treatments. Our findings indicate that fertilisation causes no or only minor increases in oak water use, suggesting that nutrient addition in oak stands within this precipitation regime does not require simultaneous irrigation. Most importantly, our data implies that the soil nutrient legacies of past agricultural use suffice to maximise the productivity of oak stands on abandoned farmland typical of the main oak growing region in southwestern Sweden.

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  • 38.
    Tham, Mathilda
    Linnaeus University, Faculty of Arts and Humanities, Department of Design. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Up Close and Personal: Metadesign Meditation to Find Agency for Careful Earth Work from Within a Ball of Yarn2022In: Metadesigning Designing in the Anthropocene / [ed] Wood, J., Routledge, 2022Chapter in book (Refereed)
    Abstract [en]

    The chapter positions a belief that we can and must have overview before we act as a barrier to real change, a belief intertwined with the economic growth logic, sexism, racism and human exceptionalism that co-creates unsustainability. Instead, it proposes metadesign as an uncompromisingly systemic and holistic craft of making change from within a ball of yarn. It takes the reader on a journey and meditation from Me to We to World and Back Again, exploring how a system of approaches—languaging, learning and governance—can support change agency from within each position. The chapter foregrounds care as a relational, intimate practice of healing available to anyone, anywhere; thereby decentralising response ability (Haraway, 2008) in the face of urgent convergent social and ecological crises.

  • 39.
    Thorpert, Petra
    et al.
    Swedish University of Agricultural Sciences, Sweden.
    Rayner, John
    University of Melbourne, Australia.
    Haaland, Christine
    Swedish University of Agricultural Sciences, Sweden.
    Englund, Jan-Eric
    Swedish University of Agricultural Sciences, Sweden.
    Fransson, Ann-Mari
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Exploring the Integration Between Colour Theory and Biodiversity Values in the Design of Living Walls2022In: Frontiers in Ecology and Evolution, E-ISSN 2296-701X, Vol. 10, article id 804118Article in journal (Refereed)
    Abstract [en]

    Designing green infrastructure in cities requires vegetation that has multiple outcomes and functions, particularly using plants that have both attractive visual or aesthetic features and high biodiversity values. Plantings that have high visual appeal are more highly valued by people and increase their feeling of wellbeing. Increasing biodiversity in cities is one of the major challenges facing urban planning and design. However, balancing biodiversity and aesthetic outcomes in urban planting design is complex, and to date there are few methods that can be used to guide plant selection. To address this knowledge gap, we investigated the use of a colour theory framework for planting arrangements to see if we could design vegetation that is highly aesthetic and has high biodiversity. We did this by configuring planting combinations for living walls in Malmö, Sweden, using principles based on Johannes Itten’s colour theories. The plant combinations on each wall were graphically arranged using (1) colour analysis of each plant and (2) design of the plant species into two colour schemes: light-dark colour concept and a complementary colour concept. For each species used in the compositions we created a biodiversity classification, based on its pollination value, “nativeness” and conservation value as a cultivar; and a plant visual quality classification, based on the performance from living walls studies. The graphical colour composition and interlinked biodiversity value were then compared to designs created with randomly selected plant species. The results showed that it is possible to design a living wall based on colour theory without compromising with biodiversity outcomes, namely species richness, pollination and the nativeness of the species. The results also indicate the potential application of this design approach to deliver greater aesthetic appreciation and enjoyment from plantings. While more work is needed, this study has shown that a theoretical colour framework can be a useful tool in designing green infrastructure to improve delivery of both cultural and regulatory ecosystem services. Copyright © 2022 Thorpert, Rayner, Haaland, Englund and Fransson.

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  • 40.
    Van Sundert, Kevin
    et al.
    University of Antwerp, Belgium;Massachusetts Institute of Technology, USA;Stanford University, USA;Northern Arizona University, USA.
    Leuzinger, Sebastian
    Auckland University of Technology, New Zealand.
    Bader, Martin K.-F.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Chang, Scott X.
    University of Alberta, Canada.
    De Kauwe, Martin G.
    University of Bristol, UK.
    Dukes, Jeffrey S.
    Carnegie Institution for Science, USA.
    Langley, J. Adam
    Villanova University, USA.
    Ma, Zilong
    Sun Yat‐sen University, China.
    Mariën, Bertold
    University of Antwerp, Belgium.
    Reynaert, Simon
    University of Antwerp, Belgium.
    Ru, Jingyi
    Hebei University, China.
    Song, Jian
    Hebei University, China.
    Stocker, Benjamin
    University of Bern, Switzerland.
    Terrer, César
    Massachusetts Institute of Technology, USA.
    Thoresen, Joshua
    University of Alberta, Canada;Wildland Consultants, New Zealand.
    Vanuytrecht, Eline
    KU Leuven, Belgium;European Environment Agency, Denmark.
    Wan, Shiqiang
    Hebei University, China.
    Yue, Kai
    Fujian Normal University, China;Fujian Sanming Forest Ecosystem National Observation and Research Station, China.
    Vicca, Sara
    University of Antwerp, Belgium.
    When things get MESI: The Manipulation Experiments Synthesis Initiative—A coordinated effort to synthesize terrestrial global change experiments2023In: Global Change Biology, ISSN 1354-1013, E-ISSN 1365-2486, Vol. 29, no 7, p. 1922-1938Article in journal (Refereed)
    Abstract [en]

    Responses of the terrestrial biosphere to rapidly changing environmental conditions are a major source of uncertainty in climate projections. In an effort to reduce this uncertainty, a wide range of global change experiments have been conducted that mimic future conditions in terrestrial ecosystems, manipulating CO2, temperature, and nutrient and water availability. Syntheses of results across experiments provide a more general sense of ecosystem responses to global change, and help to discern the influence of background conditions such as climate and vegetation type in determining global change responses. Several independent syntheses of published data have yielded distinct databases for specific objectives. Such parallel, uncoordinated initiatives carry the risk of producing redundant data collection efforts and have led to contrasting outcomes without clarifying the underlying reason for divergence. These problems could be avoided by creating a publicly available, updatable, curated database. Here, we report on a global effort to collect and curate 57,089 treatment responses across 3644 manipulation experiments at 1145 sites, simulating elevated CO2, warming, nutrient addition, and precipitation changes. In the resulting Manipulation Experiments Synthesis Initiative (MESI) database, effects of experimental global change drivers on carbon and nutrient cycles are included, as well as ancillary data such as background climate, vegetation type, treatment magnitude, duration, and, unique to our database, measured soil properties. Our analysis of the database indicates that most experiments are short term (one or few growing seasons), conducted in the USA, Europe, or China, and that the most abundantly reported variable is aboveground biomass. We provide the most comprehensive multifactor global change database to date, enabling the research community to tackle open research questions, vital to global policymaking. The MESI database, freely accessible at doi.org/10.5281/zenodo.7153253, opens new avenues for model evaluation and synthesis-based understanding of how global change affects terrestrial biomes. We welcome contributions to the database on GitHub.

  • 41.
    Witzell, Johanna
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development. Swedish University of Agricultural Sciences, Sweden.
    Decker, Vicki Huizu Guo
    Umeå University, Sweden.
    Agostinelli, Marta
    Swedish University of Agricultural Sciences, Sweden.
    Romeralo, Carmen
    Swedish University of Agricultural Sciences, Sweden;CSIC, Spain.
    Cleary, Michelle
    Swedish University of Agricultural Sciences, Sweden.
    Albrectsen, Benedicte Riber
    Umeå University, Sweden.
    Aspen Leaves as a "Chemical Landscape" for Fungal Endophyte Diversity - Effects of Nitrogen Addition2022In: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 13, article id 846208Article in journal (Refereed)
    Abstract [en]

    Abiotic and biotic factors may shape the mycobiome communities in plants directly but also indirectly by modifying the quality of host plants as a substrate. We hypothesized that nitrogen fertilization (N) would determine the quality of aspen (Populus tremula) leaves as a substrate for the endophytic fungi, and that by subjecting the plants to N, we could manipulate the concentrations of positive (nutritious) and negative (antifungal) chemicals in leaves, thus changing the internal "chemical landscape" for the fungi. We expected that this would lead to changes in the fungal community composition, in line with the predictions of heterogeneity-diversity relationship and resource availability hypotheses. To test this, we conducted a greenhouse study where aspen plants were subjected to N treatment. The chemical status of the leaves was confirmed using GC/MS (114 metabolites, including amino acids and sugars), LC/MS (11 phenolics), and UV-spectrometry (antifungal condensed tannins, CTs), and the endophytic communities were characterized using culture-dependent sequencing. We found that N treatment reduced foliar concentrations of CT precursor catechin but not that of CTs. Nitrogen treatment also increased the concentrations of the amino acids and reduced the concentration of some sugars. We introduced beetle herbivores (H) as a second treatment but found no rapid changes in chemical traits nor strong effect on the diversity of endophytes induced by herbivores. A few rare fungi were associated with and potentially vectored by the beetle herbivores. Our findings indicate that in a controlled environment, the externally induced changes did not strongly alter endophyte diversity in aspen leaves.

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  • 42.
    Witzell, Johanna
    et al.
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Linnaeus University, Linnaeus Knowledge Environments, Green Sustainable Development.
    Romeralo Tapia, Carmen
    Swedish University of Agricultural Sciences, Sweden.
    Aldea, Jorge
    Swedish University of Agricultural Sciences, Sweden.
    Löf, Magnus
    Swedish University of Agricultural Sciences, Sweden.
    Forest diversity and productivity: Implications for forest health in future climates2022In: Forest Microbiology. Vol 2. Forest Tree Health / [ed] Asiegbu, Fred;Kovalchuk, Andriy, Academic Press, 2022, p. 49-59Chapter in book (Refereed)
    Abstract [en]

    Tree species diversity is an important determinant of the capacity of forests to support biodiversity and provide multiple ecosystem services. Tree diversity is also an important determinant of the ecological stability or vulnerability of the forests against disturbances, such as insect outbreaks or pathogen epidemics. Forest management decisions regarding the tree species diversity are therefore at the very core of successful adaptation of forestry to climate change and for sustainable forest management to meet the energy and raw material needs of the circular bioeconomy. In this chapter, we focus on three strategies that have been suggested as measures for adapting the forest management to climate change and that have the potential to influence tree diversity in forests, viz. introduction of diversity using non-native tree species, assisted migration, or use of admixtures. We discuss the forest health risks of these strategies and some avenues that can help to mitigate these risks in future forest management.

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