干旱区生态环境知识资源中心(Arid): Soil moisture dominates dryness stress on ecosystem production globally

Arid

DOI	10.1038/s41467-020-18631-1
	Soil moisture dominates dryness stress on ecosystem production globally
	Liu, Laibao; Gudmundsson, Lukas; Hauser, Mathias; Qin, Dahe; Li, Shuangcheng; Seneviratne, Sonia I.
通讯作者	Liu, LB ; Seneviratne, SI
来源期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
出版年	2020
卷号	11 期号:1
英文摘要	Dryness stress can limit vegetation growth and is often characterized by low soil moisture (SM) and high atmospheric water demand (vapor pressure deficit, VPD). However, the relative role of SM and VPD in limiting ecosystem production remains debated and is difficult to disentangle, as SM and VPD are coupled through land-atmosphere interactions, hindering the ability to predict ecosystem responses to dryness. Here, we combine satellite observations of solar-induced fluorescence with estimates of SM and VPD and show that SM is the dominant driver of dryness stress on ecosystem production across more than 70% of vegetated land areas with valid data. Moreover, after accounting for SM-VPD coupling, VPD effects on ecosystem production are much smaller across large areas. We also find that SM stress is strongest in semi-arid ecosystems. Our results clarify a longstanding question and open new avenues for improving models to allow a better management of drought risk.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000577262800003
WOS关键词	INDUCED CHLOROPHYLL FLUORESCENCE ; NET PRIMARY PRODUCTION ; SEMIARID ECOSYSTEMS ; ATMOSPHERIC DEMAND ; DROUGHT IMPACTS ; TREE MORTALITY ; SATELLITE ; WATER ; CLIMATE ; PHOTOSYNTHESIS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326755
作者单位	[Liu, Laibao; Gudmundsson, Lukas; Hauser, Mathias; Seneviratne, Sonia I.] Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; [Liu, Laibao; Qin, Dahe; Li, Shuangcheng] Peking Univ, Coll Urban & Environm Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Laibao,Gudmundsson, Lukas,Hauser, Mathias,et al. Soil moisture dominates dryness stress on ecosystem production globally[J]. 北京大学,2020,11(1).
APA	Liu, Laibao,Gudmundsson, Lukas,Hauser, Mathias,Qin, Dahe,Li, Shuangcheng,&Seneviratne, Sonia I..(2020).Soil moisture dominates dryness stress on ecosystem production globally.NATURE COMMUNICATIONS,11(1).
MLA	Liu, Laibao,et al."Soil moisture dominates dryness stress on ecosystem production globally".NATURE COMMUNICATIONS 11.1(2020).