globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13542
论文题名:
Predicting vegetation type through physiological and environmental interactions with leaf traits: evergreen and deciduous forests in an earth system modeling framework
作者: Weng E.; Farrior C.E.; Dybzinski R.; Pacala S.W.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:6
起始页码: 2482
结束页码: 2498
语种: 英语
英文关键词: dynamic global vegetation model ; evolutionarily stable strategy ; forest succession ; game theory ; leaf traits ; LM3-PPA ; nitrogen cycle
英文摘要: Earth system models are incorporating plant trait diversity into their land components to better predict vegetation dynamics in a changing climate. However, extant plant trait distributions will not allow extrapolations to novel community assemblages in future climates, which will require a mechanistic understanding of the trade-offs that determine trait diversity. In this study, we show how physiological trade-offs involving leaf mass per unit area (LMA), leaf lifespan, leaf nitrogen, and leaf respiration may explain the distribution patterns of evergreen and deciduous trees in the temperate and boreal zones based on (1) an evolutionary analysis of a simple mathematical model and (2) simulation experiments of an individual-based dynamic vegetation model (i.e., LM3-PPA). The evolutionary analysis shows that these leaf traits set up a trade-off between carbon- and nitrogen-use efficiency at the scale of individual trees and therefore determine competitively dominant leaf strategies. As soil nitrogen availability increases, the dominant leaf strategy switches from one that is high in nitrogen-use efficiency to one that is high in carbon-use efficiency or, equivalently, from high-LMA/long-lived leaves (i.e., evergreen) to low-LMA/short-lived leaves (i.e., deciduous). In a region of intermediate soil nitrogen availability, the dominant leaf strategy may be either deciduous or evergreen depending on the initial conditions of plant trait abundance (i.e., founder controlled) due to feedbacks of leaf traits on soil nitrogen mineralization through litter quality. Simulated successional patterns by LM3-PPA from the leaf physiological trade-offs are consistent with observed successional dynamics of evergreen and deciduous forests at three sites spanning the temperate to boreal zones. © 2016 John Wiley & Sons Ltd
资助项目: Funding was provided by USDA Forest Service Northern Research Station (Agreement 13-JV-11242315-066) and Princeton Environment Institute. We thank Dr. Sergey Malyshev for his help in preparing forcing data and Dr. Cleo Chou for her helpful comments on an earlier version of this manuscript. We thank Prof. I. Colin Prentice and other three reviewers for their insightful comments and suggestions, which greatly improved this manuscript. This work was conducted while CEF was a postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis, sponsored by the National Science Foundation through NSF Award #DBI-1300426, with additional support from The University of Tennessee, Knoxville.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60933
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ, United States; Department of Integrative Biology, University of Texas at Austin, Austin, TX, United States; Institute of Environmental Sustainability, Loyola University Chicago, Chicago, IL, United States

Recommended Citation:
Weng E.,Farrior C.E.,Dybzinski R.,et al. Predicting vegetation type through physiological and environmental interactions with leaf traits: evergreen and deciduous forests in an earth system modeling framework[J]. Global Change Biology,2017-01-01,23(6)
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