气候变化领域集成服务门户(CCPortal): The effect of plant physiological responses to rising CO2 on global streamflow

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DOI	10.1038/s41558-019-0602-x
	The effect of plant physiological responses to rising CO2 on global streamflow
	Fowler M.D.; Kooperman G.J.; Randerson J.T.; Pritchard M.S.
发表日期	2019
ISSN	1758678X
卷号	9 期号:11
英文摘要	River flow statistics are expected to change as a result of increasing atmospheric CO2 but uncertainty in Earth system model projections is high. While this is partly driven by changing precipitation, with well-known Earth system model uncertainties, here we show that the influence of plant stomatal conductance feedbacks can cause equally large changes in regional flood extremes and even act as the main control on future low latitude streamflow. Over most tropical land masses, modern climate predictions suggest that plant physiological effects will boost streamflow, overwhelming opposing effects of soil drying driven by the effects of CO2 on atmospheric radiation, warming and rainfall redistribution. The relatively unknown uncertainties in representing eco-physiological processes must therefore be better constrained in land-surface models. To this end, we identify a distinct plant physiological fingerprint on annual peak, low and mean discharge throughout the tropics and identify river basins where physiological responses dominate radiative responses to rising CO2 in modern climate projections. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	carbon dioxide; climate modeling; ecophysiology; flash flood; flood; physiological response; rainfall; stomatal conductance; streamflow
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124322
作者单位	Department of Earth System Science, University of California Irvine, Irvine, CA, United States; Department of Geography, University of Georgia Athens, Athens, GA, United States
推荐引用方式 GB/T 7714	Fowler M.D.,Kooperman G.J.,Randerson J.T.,et al. The effect of plant physiological responses to rising CO2 on global streamflow[J],2019,9(11).
APA	Fowler M.D.,Kooperman G.J.,Randerson J.T.,&Pritchard M.S..(2019).The effect of plant physiological responses to rising CO2 on global streamflow.Nature Climate Change,9(11).
MLA	Fowler M.D.,et al."The effect of plant physiological responses to rising CO2 on global streamflow".Nature Climate Change 9.11(2019).