干旱区生态环境知识资源中心(Arid): Conjunctive Water Management for Agriculture With Groundwater Salinity

Arid

DOI	10.1029/2021WR031058
	Conjunctive Water Management for Agriculture With Groundwater Salinity
	Yao, Yiqing; Lund, Jay R.; Harter, Thomas
通讯作者	Yao, YQ
来源期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
EISSN	1944-7973
出版年	2022
卷号	58 期号:10
英文摘要	Salt accumulations in aquifers significantly affect and transform the conjunctive use of surface water and groundwater supporting irrigated agriculture. Salt accumulates in aquifers under many semi-arid irrigated lands where pumping has lowered water levels enough to prevent drainage of saline groundwater from the basin. This paper provides new insights into optimal conjunctive management of groundwater pumping, recharge, surface water, and cropping patterns with groundwater salinity and hydrologic variability in an irrigated semi-arid region, such as California's western San Joaquin Valley, reducing agricultural crop yields and revenues. A two-stage stochastic quadratic model explores this problem to prescribe economically optimal crop mix and conjunctive water operation policies over a 10-year period with probabilistic annual surface water availability, considering groundwater salinity's harm to crop yields. At low groundwater salinity, agricultural conjunctive use usually pumps most groundwater in drier years, supplied by additional recharge in wetter years. In contrast, at higher groundwater salinity, optimal conjunctive use pumps less in drier years while pumping more in wetter years, when more surface water allows more dilution of saltier groundwater. Reduced pumping in drier years substantially reduces a region's ability to support higher-value perennial crops and reduces or eliminates lower-value annual crops in dry years. Artificial recharge with fresh surface water in wetter years can have economic value from slowing groundwater salination which allows more groundwater use in drier years.
英文关键词	two-stage stochastic quadratic programming groundwater salinity groundwater overdraft conjunctive water management artificial recharge drought
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000863036500001
WOS关键词	IRRIGATED AGRICULTURE ; OPTIMIZATION ; MODEL ; SUSTAINABILITY ; SURFACE
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394899
推荐引用方式 GB/T 7714	Yao, Yiqing,Lund, Jay R.,Harter, Thomas. Conjunctive Water Management for Agriculture With Groundwater Salinity[J],2022,58(10).
APA	Yao, Yiqing,Lund, Jay R.,&Harter, Thomas.(2022).Conjunctive Water Management for Agriculture With Groundwater Salinity.WATER RESOURCES RESEARCH,58(10).
MLA	Yao, Yiqing,et al."Conjunctive Water Management for Agriculture With Groundwater Salinity".WATER RESOURCES RESEARCH 58.10(2022).