OuyangXiangGouEtAl2021

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Ouyang, S., Xiang, W., Gou, M., Chen, L., Lei, P., Xiao, W., Deng, X., Zeng, L., Li, J., Zhang, T., Peng, C., Forrester, D.I. (2021) Stability in subtropical forests: The role of tree species diversity, stand structure, environmental and socio-economic conditions. Global Ecology and Biogeography, 30(2):500-513. (Scopus )

Résumé

Aim: Tree species diversity can increase the stability of ecosystem productivity by increasing mean productivity and/or reducing the standard deviation in productivity. However, stand structure, environmental and socio-economic conditions influence plant diversity and might strongly influence the relationships between diversity and stability in natural forest communities. The relative importance of these factors for community stability remains poorly understood in complex (species-rich) subtropical forests. Location: Subtropical area of southern China. Time period: 1999–2014. Major taxa studied: Forest trees. Methods: We conducted bivariate analyses to examine the mechanisms (overyielding and species asynchrony) underlying the effects of diversity on stability. Multiple regression models were then used to determine the relative importance of tree species diversity, stand structure, socio-economic factors and environmental conditions on stability. Structural equation modelling was used to disentangle how these variables directly and/or indirectly affect forest stability. Results: Tree species richness exerted a positive effect on stability through overyielding and species asynchrony, and this effect was stronger in mountainous forests than in hilly forests. Species richness positively affected the mean productivity, whereas species asynchrony negatively affected the variability in productivity, hence increasing forest stability. Structural diversity also had a positive effect, whereas population density had a negative effect on stability. Precipitation variability and slope mainly had indirect influences on stability through their effects on tree species richness. Main conclusions: Overall, tree species diversity governed stability; however, stand structure, socio-economic conditions and environmental conditions also played an important role in shaping stability in these forests. Our work highlights the importance of regulating stand structure and socio-economic factors in forest management and biodiversity conservation, to maintain and enhance their stability to provide ecosystem services in the face of unprecedented anthropogenic activities and global climate change. © 2020 John Wiley & Sons Ltd

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@ARTICLE { OuyangXiangGouEtAl2021,
    AUTHOR = { Ouyang, S. and Xiang, W. and Gou, M. and Chen, L. and Lei, P. and Xiao, W. and Deng, X. and Zeng, L. and Li, J. and Zhang, T. and Peng, C. and Forrester, D.I. },
    JOURNAL = { Global Ecology and Biogeography },
    TITLE = { Stability in subtropical forests: The role of tree species diversity, stand structure, environmental and socio-economic conditions },
    YEAR = { 2021 },
    NOTE = { cited By 1 },
    NUMBER = { 2 },
    PAGES = { 500-513 },
    VOLUME = { 30 },
    ABSTRACT = { Aim: Tree species diversity can increase the stability of ecosystem productivity by increasing mean productivity and/or reducing the standard deviation in productivity. However, stand structure, environmental and socio-economic conditions influence plant diversity and might strongly influence the relationships between diversity and stability in natural forest communities. The relative importance of these factors for community stability remains poorly understood in complex (species-rich) subtropical forests. Location: Subtropical area of southern China. Time period: 1999–2014. Major taxa studied: Forest trees. Methods: We conducted bivariate analyses to examine the mechanisms (overyielding and species asynchrony) underlying the effects of diversity on stability. Multiple regression models were then used to determine the relative importance of tree species diversity, stand structure, socio-economic factors and environmental conditions on stability. Structural equation modelling was used to disentangle how these variables directly and/or indirectly affect forest stability. Results: Tree species richness exerted a positive effect on stability through overyielding and species asynchrony, and this effect was stronger in mountainous forests than in hilly forests. Species richness positively affected the mean productivity, whereas species asynchrony negatively affected the variability in productivity, hence increasing forest stability. Structural diversity also had a positive effect, whereas population density had a negative effect on stability. Precipitation variability and slope mainly had indirect influences on stability through their effects on tree species richness. Main conclusions: Overall, tree species diversity governed stability; however, stand structure, socio-economic conditions and environmental conditions also played an important role in shaping stability in these forests. Our work highlights the importance of regulating stand structure and socio-economic factors in forest management and biodiversity conservation, to maintain and enhance their stability to provide ecosystem services in the face of unprecedented anthropogenic activities and global climate change. © 2020 John Wiley & Sons Ltd },
    AFFILIATION = { Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, China; Huitong National Station for Scientific Observation and Research of Chinese Fir Plantation Ecosystems in Hunan Province, Huitong, Hunan, China; Key Laboratory of Forest Ecology and Environment, State Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China; Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet, China; Department of Biology, University of Florida, Gainesville, FL, United States; College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan, China; Institute of Environment Sciences, Department of Biological Sciences, University of Quebec at Montreal, Montreal, QC, Canada; Swiss Federal Institute of Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland },
    AUTHOR_KEYWORDS = { biodiversity; community stability; ecosystem functioning; environmental conditions; population density; species asynchrony; stand attributes },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/geb.13235 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097439225&doi=10.1111%2fgeb.13235&partnerID=40&md5=ef13403348f33be35bb29b51ae7cd268 },
}

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