干旱区生态环境知识资源中心(Arid): Massive crop expansion threatens agriculture and water sustainability in northwestern China

Arid

DOI	10.1088/1748-9326/ac46e8
	Massive crop expansion threatens agriculture and water sustainability in northwestern China
	Lai, Jiameng; Li, Yanan; Chen, Jianli; Niu, Guo-Yue; Lin, Peirong; Li, Qi; Wang, Lixin; Han, Jimei; Luo, Zhenqi; Sun, Ying
通讯作者	Sun, Y
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2022
卷号	17 期号:3
英文摘要	Northwestern China (NWC) is among the major global hotspots undergoing massive terrestrial water storage (TWS) depletion. Yet driver(s) underlying such region-wide depletion remain controversial, i.e. warming-induced glaciermelting versus anthropogenic activities. Reconciling this controversy is the core initial step to guide policymaking to combat the dual challenges in agriculture production and water scarcity in the vastly dry NWC toward sustainable development. Utilizing diverse observations, we found persistent cropland expansion by >1.2 x 10(4) km(2) since 2003, leading to growth of 59.9% in irrigated area and 19.5% in agricultural water use, despite a steady enhancement in irrigation efficiency. Correspondingly, a substantially faster evapotranspiration (ET) increase occurred in crop expansion areas, whereas precipitation exhibited no long-term trend. Counterfactual analyses suggest that the region-wide TWS depletion is unlikely to have occurred without an increase in crop expansion-driven ET even in the presence of glaciermelting. These findings imply that sustainable water management is critically needed to ensure agriculture and water security in NWC.
英文关键词	sustainable agriculture freshwater depletion crop expansion irrigation drylands
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000758417500001
WOS关键词	CLIMATE-CHANGE ; GROUNDWATER DEPLETION ; ARID REGION ; TIEN-SHAN ; IRRIGATION ; LAND ; GRACE ; XINJIANG ; GLACIERS ; STORAGE
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376236
推荐引用方式 GB/T 7714	Lai, Jiameng,Li, Yanan,Chen, Jianli,et al. Massive crop expansion threatens agriculture and water sustainability in northwestern China[J],2022,17(3).
APA	Lai, Jiameng.,Li, Yanan.,Chen, Jianli.,Niu, Guo-Yue.,Lin, Peirong.,...&Sun, Ying.(2022).Massive crop expansion threatens agriculture and water sustainability in northwestern China.ENVIRONMENTAL RESEARCH LETTERS,17(3).
MLA	Lai, Jiameng,et al."Massive crop expansion threatens agriculture and water sustainability in northwestern China".ENVIRONMENTAL RESEARCH LETTERS 17.3(2022).