气候变化领域集成服务门户(CCPortal): Global patterns of water storage in the rooting zones of vegetation

CCPortal

DOI	10.1038/s41561-023-01125-2
	Global patterns of water storage in the rooting zones of vegetation
	Stocker, Benjamin D. D.; Tumber-Davila, Shersingh Joseph; Konings, Alexandra G. G.; Anderson, Martha C. C.; Hain, Christopher; Jackson, Robert B. B.
发表日期	2023
ISSN	1752-0894
EISSN	1752-0908
起始页码	250
结束页码	+
卷号	16 期号:3 页码:21
英文摘要	Global estimations of the water-storage capacity in the rooting zone from satellite data reveal plant access to deep water across a third of Earth's vegetated surface. The rooting-zone water-storage capacity-the amount of water accessible to plants-controls the sensitivity of land-atmosphere exchange of water and carbon during dry periods. How the rooting-zone water-storage capacity varies spatially is largely unknown and not directly observable. Here we estimate rooting-zone water-storage capacity globally from the relationship between remotely sensed vegetation activity, measured by combining evapotranspiration, sun-induced fluorescence and radiation estimates, and the cumulative water deficit calculated from daily time series of precipitation and evapotranspiration. Our findings indicate plant-available water stores that exceed the storage capacity of 2-m-deep soils across 37% of Earth's vegetated surface. We find that biome-level variations of rooting-zone water-storage capacities correlate with observed rooting-zone depth distributions and reflect the influence of hydroclimate, as measured by the magnitude of annual cumulative water-deficit extremes. Smaller-scale variations are linked to topography and land use. Our findings document large spatial variations in the effective root-zone water-storage capacity and illustrate a tight link among the climatology of water deficits, rooting depth of vegetation and its sensitivity to water stress.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000931745700001
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272471
作者单位	Stanford University; Swiss Federal Institutes of Technology Domain; ETH Zurich; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; University of Bern; University of Bern; Harvard University; United States Department of Agriculture (USDA); National Aeronautics & Space Administration (NASA); Stanford University; Stanford University
推荐引用方式 GB/T 7714	Stocker, Benjamin D. D.,Tumber-Davila, Shersingh Joseph,Konings, Alexandra G. G.,et al. Global patterns of water storage in the rooting zones of vegetation[J],2023,16(3):21.
APA	Stocker, Benjamin D. D.,Tumber-Davila, Shersingh Joseph,Konings, Alexandra G. G.,Anderson, Martha C. C.,Hain, Christopher,&Jackson, Robert B. B..(2023).Global patterns of water storage in the rooting zones of vegetation.NATURE GEOSCIENCE,16(3),21.
MLA	Stocker, Benjamin D. D.,et al."Global patterns of water storage in the rooting zones of vegetation".NATURE GEOSCIENCE 16.3(2023):21.