气候变化领域集成服务门户(CCPortal): Observed increasing water constraint on vegetation growth over the last three decades

CCPortal

DOI	10.1038/s41467-021-24016-9
	Observed increasing water constraint on vegetation growth over the last three decades
	Jiao W.; Wang L.; Smith W.K.; Chang Q.; Wang H.; D’Odorico P.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Despite the growing interest in predicting global and regional trends in vegetation productivity in response to a changing climate, changes in water constraint on vegetation productivity (i.e., water limitations on vegetation growth) remain poorly understood. Here we conduct a comprehensive evaluation of changes in water constraint on vegetation growth in the extratropical Northern Hemisphere between 1982 and 2015. We document a significant increase in vegetation water constraint over this period. Remarkably divergent trends were found with vegetation water deficit areas significantly expanding, and water surplus areas significantly shrinking. The increase in water constraints associated with water deficit was also consistent with a decreasing response time to water scarcity, suggesting a stronger susceptibility of vegetation to drought. We also observed shortened water surplus period for water surplus areas, suggesting a shortened exposure to water surplus associated with humid conditions. These observed changes were found to be attributable to trends in temperature, solar radiation, precipitation, and atmospheric CO2. Our findings highlight the need for a more explicit consideration of the influence of water constraints on regional and global vegetation under a warming climate. © 2021, The Author(s).
语种	英语
scopus关键词	carbon dioxide; water; water; extratropical environment; growth rate; Northern Hemisphere; precipitation assessment; prediction; trend analysis; water stress; Article; atmosphere; drought; environmental temperature; humidity; Northern Hemisphere; precipitation; reaction time; solar radiation; vegetation; water availability; water deficit; water insecurity; climate change; drought; ecosystem; physiology; plant; plant development; satellite imagery; water supply; Climate Change; Droughts; Ecosystem; Plant Development; Plants; Satellite Imagery; Water; Water Resources
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250671
作者单位	Department of Earth Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN, United States; School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, United States; O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, United States; Department of Mathematical Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN, United States; Department of Environmental Science Policy and Management, University of California, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Jiao W.,Wang L.,Smith W.K.,et al. Observed increasing water constraint on vegetation growth over the last three decades[J],2021,12(1).
APA	Jiao W.,Wang L.,Smith W.K.,Chang Q.,Wang H.,&D’Odorico P..(2021).Observed increasing water constraint on vegetation growth over the last three decades.Nature Communications,12(1).
MLA	Jiao W.,et al."Observed increasing water constraint on vegetation growth over the last three decades".Nature Communications 12.1(2021).