气候变化领域集成服务门户(CCPortal): Long-term climate and competition explain forest mortality patterns under extreme drought

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DOI	10.1111/ele.12711
	Long-term climate and competition explain forest mortality patterns under extreme drought
	Young D.J.N.; Stevens J.T.; Earles J.M.; Moore J.; Ellis A.; Jirka A.L.; Latimer A.M.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:1
英文摘要	Rising temperatures are amplifying drought-induced stress and mortality in forests globally. It remains uncertain, however, whether tree mortality across drought-stricken landscapes will be concentrated in particular climatic and competitive environments. We investigated the effects of long-term average climate [i.e. 35-year mean annual climatic water deficit (CWD)] and competition (i.e. tree basal area) on tree mortality patterns, using extensive aerial mortality surveys conducted throughout the forests of California during a 4-year statewide extreme drought lasting from 2012 to 2015. During this period, tree mortality increased by an order of magnitude, typically from tens to hundreds of dead trees per km2, rising dramatically during the fourth year of drought. Mortality rates increased independently with average CWD and with basal area, and they increased disproportionately in areas that were both dry and dense. These results can assist forest managers and policy-makers in identifying the most drought-vulnerable forests across broad geographic areas. © 2016 John Wiley & Sons Ltd/CNRS
英文关键词	California; climate; climatic water deficit; competition; drought; forest; mortality; stress; tree
学科领域	California; climate; climate change; drought; forest; longevity; physiology; season; tree; California; Climate; Climate Change; Droughts; Forests; Longevity; Seasons; Trees
语种	英语
scopus关键词	California; climate; climate change; drought; forest; longevity; physiology; season; tree; California; Climate; Climate Change; Droughts; Forests; Longevity; Seasons; Trees
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/118451
作者单位	Graduate Group in Ecology and Department of Plant Sciences, University of California-Davis, Davis, CA, United States; John Muir Institute of the Environment, University of California-Davis, Davis, CA, United States; School of Forestry and Environmental Studies, Yale University, New Haven, CT, United States; USDA Forest Service, Pacific Southwest Region, Davis, CA, United States; Department of Plant Sciences, University of California-Davis, Davis, CA, United States; Department of Environmental Science, Policy and Management, University of California-Berkeley, Berkeley, CA, United States; Redding, CA, United States
推荐引用方式 GB/T 7714	Young D.J.N.,Stevens J.T.,Earles J.M.,et al. Long-term climate and competition explain forest mortality patterns under extreme drought[J],2017,20(1).
APA	Young D.J.N..,Stevens J.T..,Earles J.M..,Moore J..,Ellis A..,...&Latimer A.M..(2017).Long-term climate and competition explain forest mortality patterns under extreme drought.Ecology Letters,20(1).
MLA	Young D.J.N.,et al."Long-term climate and competition explain forest mortality patterns under extreme drought".Ecology Letters 20.1(2017).