气候变化领域集成服务门户(CCPortal): Predicting shifts in the functional composition of tropical forests under increased drought and CO2 from trade-offs among plant hydraulic traits

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DOI	10.1111/ele.13168
	Predicting shifts in the functional composition of tropical forests under increased drought and CO2 from trade-offs among plant hydraulic traits
	Bartlett M.K.; Detto M.; Pacala S.W.
发表日期	2019
ISSN	1461023X
卷号	22 期号:1
英文摘要	Tropical forest responses are an important feedback on global change, but changes in forest composition with projected increases in CO2 and drought are highly uncertain. Here we determine shifts in the most competitive plant hydraulic strategy (the evolutionary stable strategy or ESS) from changes in CO2 and drought frequency and intensity. Hydraulic strategies were defined along a spectrum from drought avoidance to tolerance by physiology traits. Drought impacted competition more than CO2, with elevated CO2 reducing but not reversing drought-induced shifts in the ESS towards more tolerant strategies. Trait plasticity and/or adaptation intensified these shifts by increasing the competitive ability of the drought tolerant relative to the avoidant strategies. These findings predict losses of drought avoidant evergreens from tropical forests under global change, and point to the importance of changes in precipitation during the dry season and constraints on plasticity and adaptation in xylem traits to forest responses. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	CO2 fertilization; drought avoidance; drought tolerance; functional composition; global change; plant competition; plant hydraulics; stomatal optimization; tropical forest
语种	英语
scopus关键词	adaptation; carbon dioxide; carbon fixation; competitive ability; drought resistance; drought stress; dry season; evergreen forest; fertilizer application; functional change; global change; hydraulic conductivity; optimization; phenotypic plasticity; prediction; stomatal conductance; trade-off; tropical forest; carbon dioxide; water; drought; forest; plant leaf; tree; tropic climate; Carbon Dioxide; Droughts; Forests; Plant Leaves; Trees; Tropical Climate; Water
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/121200
作者单位	Department of Ecology and Evolutionary Biology, Princeton University, 109 Eno Hall, Princeton, NJ 08544, United States; Princeton Environmental Institute, Princeton University, 129 Guyot Lane, Princeton, NJ 08544, United States
推荐引用方式 GB/T 7714	Bartlett M.K.,Detto M.,Pacala S.W.. Predicting shifts in the functional composition of tropical forests under increased drought and CO2 from trade-offs among plant hydraulic traits[J],2019,22(1).
APA	Bartlett M.K.,Detto M.,&Pacala S.W..(2019).Predicting shifts in the functional composition of tropical forests under increased drought and CO2 from trade-offs among plant hydraulic traits.Ecology Letters,22(1).
MLA	Bartlett M.K.,et al."Predicting shifts in the functional composition of tropical forests under increased drought and CO2 from trade-offs among plant hydraulic traits".Ecology Letters 22.1(2019).