气候变化领域集成服务门户(CCPortal): Divergent forest sensitivity to repeated extreme droughts

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DOI	10.1038/s41558-020-00919-1
	Divergent forest sensitivity to repeated extreme droughts
	Anderegg W.R.L.; Trugman A.T.; Badgley G.; Konings A.G.; Shaw J.
发表日期	2020
ISSN	1758-678X
英文摘要	Climate change-driven increases in drought frequency and severity could compromise forest ecosystems and the terrestrial carbon sink1–3. While the impacts of single droughts on forests have been widely studied4–6, understanding whether forests acclimate to or become more vulnerable to sequential droughts remains largely unknown and is crucial for predicting future forest health. We combine cross-biome datasets of tree growth, tree mortality and ecosystem water content to quantify the effects of multiple droughts at a range of scales from individual trees to the globe from 1900 to 2018. We find that subsequent droughts generally have a more deleterious impact than initial droughts, but this effect differs enormously by clade and ecosystem, with gymnosperms and conifer-dominated ecosystems more often exhibiting increased vulnerability to multiple droughts. The differential impacts of multiple droughts across clades and biomes indicate that drought frequency changes may have fundamentally different ecological and carbon-cycle consequences across ecosystems. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142246
作者单位	School of Biological Sciences, University of Utah, Salt Lake City, UT, United States; Department of Geography, University of California Santa Barbara, Santa Barbara, CA, United States; Department of Earth System Science, Stanford University, Stanford, CA, United States; Rocky Mountain Research Station, United States Forest Service, Ogden, UT, United States
推荐引用方式 GB/T 7714	Anderegg W.R.L.,Trugman A.T.,Badgley G.,et al. Divergent forest sensitivity to repeated extreme droughts[J],2020.
APA	Anderegg W.R.L.,Trugman A.T.,Badgley G.,Konings A.G.,&Shaw J..(2020).Divergent forest sensitivity to repeated extreme droughts.Nature Climate Change.
MLA	Anderegg W.R.L.,et al."Divergent forest sensitivity to repeated extreme droughts".Nature Climate Change (2020).