气候变化领域集成服务门户(CCPortal): Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition

CCPortal

DOI	10.1073/pnas.2001563117
	Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition
	Trugman A.T.; Anderegg L.D.L.; Shaw J.D.; Anderegg W.R.L.
发表日期	2020
ISSN	0027-8424
起始页码	8532
结束页码	8538
卷号	117 期号:15
英文摘要	Understanding the driving mechanisms behind existing patterns of vegetation hydraulic traits and community trait diversity is critical for advancing predictions of the terrestrial carbon cycle because hydraulic traits affect both ecosystem and Earth system responses to changing water availability. Here, we leverage an extensive trait database and a long-term continental forest plot network to map changes in community trait distributions and quantify “trait velocities” (the rate of change in community-weighted traits) for different regions and different forest types across the United States from 2000 to the present. We show that diversity in hydraulic traits and photosynthetic characteristics is more related to local water availability than overall species diversity. Finally, we find evidence for coordinated shifts toward communities with more drought-tolerant traits driven by tree mortality, but the magnitude of responses differs depending on forest type. The hydraulic trait distribution maps provide a publicly available platform to fundamentally advance understanding of community trait change in response to climate change and predictive abilities of mechanistic vegetation models. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Community trait assemblage; Drought; Forest inventory; Mortality; Species diversity
语种	英语
scopus关键词	article; climate change; drought; forest; human; mortality; photosynthesis; quantitative analysis; species diversity; United States; vegetation; velocity; water availability; biodiversity; climate change; drought; ecosystem; physiological stress; physiology; plant physiology; tree; water; Biodiversity; Climate Change; Droughts; Ecosystem; Forests; Plant Physiological Phenomena; Stress, Physiological; Trees; Water
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160989
作者单位	Trugman, A.T., Department of Geography, University of California, Santa Barbara, CA 93106, United States; Anderegg, L.D.L., Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA 93106, United States, Department of Integrative Biology, University of California, Berkeley, CA 94720, United States; Shaw, J.D., Rocky Mountain Research Station, US Forest Service, Ogden, UT 84401, United States; Anderegg, W.R.L., School of Biological Sciences, University of Utah, Salt Lake City, UT 84112, United States
推荐引用方式 GB/T 7714	Trugman A.T.,Anderegg L.D.L.,Shaw J.D.,et al. Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition[J],2020,117(15).
APA	Trugman A.T.,Anderegg L.D.L.,Shaw J.D.,&Anderegg W.R.L..(2020).Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition.Proceedings of the National Academy of Sciences of the United States of America,117(15).
MLA	Trugman A.T.,et al."Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition".Proceedings of the National Academy of Sciences of the United States of America 117.15(2020).