气候变化领域集成服务门户(CCPortal): Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area

CCPortal

DOI	10.1111/ele.12748
	Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area
	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.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:4
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
英文关键词	Climate change; die-off; forest dynamics; functional traits
学科领域	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
语种	英语
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
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118411
作者单位	Biological and Environmental Sciences, University of Stirling, Stirling, FK9 4LA, United Kingdom; Forest Ecology and Restoration Group, Life Sciences Department, Universidad de Alcalá, Science Building, Alcalá de Henares, Madrid, 28805, Spain; CREAF Cerdanyola del Vallès, Barcelona, 08193, Spain; Universidad Autònoma Barcelona, Cerdanyola del Vallès, Barcelona, 08193, 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 87544, United States; Queensland Herbarium, Environmental Protection Agency, Mt Coot-tha Road, Toowong, QLD 4066, Australia; School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia; Environmental Research Institute and School of Science, University of Waikato, Hamilton, New Zealand; Max Planck Institute for Biogeochemistry, Hans-Knöll-Straße 10, Jena, 07745, Germany; German Centre for Integrati...
推荐引用方式 GB/T 7714	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],2017,20(4).
APA	Greenwood S..,Ruiz-Benito P..,Martínez-Vilalta J..,Lloret F..,Kitzberger T..,...&Jump A.S..(2017).Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area.Ecology Letters,20(4).
MLA	Greenwood S.,et al."Tree mortality across biomes is promoted by drought intensity, lower wood density and higher specific leaf area".Ecology Letters 20.4(2017).