气候变化领域集成服务门户(CCPortal): Widespread increasing vegetation sensitivity to soil moisture

CCPortal

DOI	10.1038/s41467-022-31667-9
	Widespread increasing vegetation sensitivity to soil moisture
	Li, Wantong; Migliavacca, Mirco; Forkel, Matthias; Denissen, Jasper M. C.; Reichstein, Markus; Yang, Hui; Duveiller, Gregory; Weber, Ulrich; Orth, Rene
发表日期	2022
EISSN	2041-1723
卷号	13 期号:1
英文摘要	Water availability is a major control of vegetation dynamics and terrestrial carbon cycling. Here, the authors show that vegetation sensitivity to soil moisture has been increasing in the last 36 years, especially in (semi)arid areas, and that state-of-the-art land surface models fail to capture this trend. Global vegetation and associated ecosystem services critically depend on soil moisture availability which has decreased in many regions during the last three decades. While spatial patterns of vegetation sensitivity to global soil water have been recently investigated, long-term changes in vegetation sensitivity to soil water availability are still unclear. Here we assess global vegetation sensitivity to soil moisture during 1982-2017 by applying explainable machine learning with observation-based leaf area index (LAI) and hydro-climate anomaly data. We show that LAI sensitivity to soil moisture significantly increases in many semi-arid and arid regions. LAI sensitivity trends are associated with multiple hydro-climate and ecological variables, and strongest increasing trends occur in the most water-sensitive regions which additionally experience declining precipitation. State-of-the-art land surface models do not reproduce this increasing sensitivity as they misrepresent water-sensitive regions and sensitivity strength. Our sensitivity results imply an increasing ecosystem vulnerability to water availability which can lead to exacerbated reductions in vegetation carbon uptake under future intensified drought, consequently amplifying climate change.
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000825867200040
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/280580
作者单位	Max Planck Society; European Commission Joint Research Centre; EC JRC ISPRA Site; Technische Universitat Dresden; Wageningen University & Research
推荐引用方式 GB/T 7714	Li, Wantong,Migliavacca, Mirco,Forkel, Matthias,et al. Widespread increasing vegetation sensitivity to soil moisture[J],2022,13(1).
APA	Li, Wantong.,Migliavacca, Mirco.,Forkel, Matthias.,Denissen, Jasper M. C..,Reichstein, Markus.,...&Orth, Rene.(2022).Widespread increasing vegetation sensitivity to soil moisture.NATURE COMMUNICATIONS,13(1).
MLA	Li, Wantong,et al."Widespread increasing vegetation sensitivity to soil moisture".NATURE COMMUNICATIONS 13.1(2022).