globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12748
Scopus记录号: 2-s2.0-85013480711
论文题名:
Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area
作者: Greenwood S.; Ruiz-Benito P.; Martínez-Vilalta J.; Lloret F.; Kitzberger T.; Allen C.D.; Fensham R.; Laughlin D.C.; Kattge J.; Bönisch G.; Kraft N.J.B.; Jump A.S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期:4
起始页码: 539
结束页码: 553
语种: 英语
英文关键词: Climate change ; die-off ; forest dynamics ; functional traits
Scopus关键词: angiosperm ; biome ; climate change ; deciduous tree ; disease resistance ; drought ; evergreen tree ; forest dynamics ; functional role ; global change ; gymnosperm ; leaf area ; meta-analysis ; mortality ; risk assessment ; wood ; Gymnospermae ; Magnoliophyta ; drought ; ecosystem ; longevity ; physiology ; plant leaf ; tree ; wood ; Droughts ; Ecosystem ; Longevity ; Plant Leaves ; Trees ; Wood
英文摘要: Drought events are increasing globally, and reports of consequent forest mortality are widespread. However, due to a lack of a quantitative global synthesis, it is still not clear whether drought-induced mortality rates differ among global biomes and whether functional traits influence the risk of drought-induced mortality. To address these uncertainties, we performed a global meta-analysis of 58 studies of drought-induced forest mortality. Mortality rates were modelled as a function of drought, temperature, biomes, phylogenetic and functional groups and functional traits. We identified a consistent global-scale response, where mortality increased with drought severity [log mortality (trees trees−1 year−1) increased 0.46 (95% CI = 0.2–0.7) with one SPEI unit drought intensity]. We found no significant differences in the magnitude of the response depending on forest biomes or between angiosperms and gymnosperms or evergreen and deciduous tree species. Functional traits explained some of the variation in drought responses between species (i.e. increased from 30 to 37% when wood density and specific leaf area were included). Tree species with denser wood and lower specific leaf area showed lower mortality responses. Our results illustrate the value of functional traits for understanding patterns of drought-induced tree mortality and suggest that mortality could become increasingly widespread in the future. © 2017 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107637
Appears in Collections:气候减缓与适应

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作者单位: Biological and Environmental Sciences, University of Stirling, Stirling, United Kingdom; Forest Ecology and Restoration Group, Life Sciences Department, Universidad de Alcalá, Science Building, Alcalá de Henares, Madrid, Spain; CREAF Cerdanyola del Vallès, Barcelona, Spain; Universidad Autònoma Barcelona, Cerdanyola del Vallès, Barcelona, Spain; Laboratorio Ecotono, INIBIOMA, CONICET-Universidad Nacional del Comahue, Bariloche, Río Negro, Argentina; U.S. Geological Survey, Fort Collins Science Center, New Mexico Landscapes Field Station, Los Alamos, NM, United States; Queensland Herbarium, Environmental Protection Agency, Mt Coot-tha Road, Toowong, QLD, Australia; School of Biological Sciences, University of Queensland, St Lucia, QLD, Australia; Environmental Research Institute and School of Science, University of Waikato, Hamilton, New Zealand; Max Planck Institute for Biogeochemistry, Hans-Knöll-Straße 10, Jena, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig Deutscher Platz 5e, Leipzig, Germany; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, 621 Charles E. Young Drive South, Los Angeles, CA, United States

Recommended Citation:
Greenwood S.,Ruiz-Benito P.,Martínez-Vilalta J.,et al. Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area[J]. Ecology Letters,2017-01-01,20(4)
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