globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2001563117
论文题名:
Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition
作者: Trugman A.T.; Anderegg L.D.L.; Shaw J.D.; Anderegg W.R.L.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:15
起始页码: 8532
结束页码: 8538
语种: 英语
英文关键词: Community trait assemblage ; Drought ; Forest inventory ; Mortality ; Species diversity
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164245
Appears in Collections:气候变化与战略

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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

Recommended Citation:
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]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(15)
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