干旱区生态环境知识资源中心(Arid): Water accounting for conjunctive groundwater and surface water irrigation sources: A case study in the middle Heihe River Basin of arid northwestern China

Arid

DOI	10.3724/SP.J.1226.2015.00687
	Water accounting for conjunctive groundwater and surface water irrigation sources: A case study in the middle Heihe River Basin of arid northwestern China
	Chang, XueXiang; Liu, Bing; Liu, Hu; Li, ShouBo
通讯作者	Chang, XX
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2015
卷号	7 期号:6 页码:687-701
英文摘要	Oases in arid northwestern China play a significant role in the region's economic stability and development. Overexploitation of the region's water resources has led to serious environmental consequences. In oases, irrigated agriculture is the primary consumer of water, but water shortages resulting from dramatically growing human needs have become a bottleneck for regional sustainable development, making effective management of the limited available water critical. Effective strategies must be formulated to increase agricultural productivity while reducing its environmental impacts. To support the development of such strategies, water use patterns were analyzed during the 2007 and 2008 growing seasons, from May to early October, to identify opportunities for improving water management using the Molden-Sakthivadivel water-accounting method, which combines groundwater and surface water into a single domain and can provide a good estimate of the uses, depletion, and productivity of water in a water basin context. The study area lies in Linze County, Gansu Province, China. In the study area, the inflow water resources consist of irrigation, precipitation, and soil water, which accounted for 89.3%, 8.9%, and 1.8% of the total in 2007, and 89.3%, 4.8%, and 5.9% in 2008, respectively. The irrigation depends heavily on groundwater, which accounted for 82.1% and 83.6% of the total irrigation water in 2007 and 2008, respectively. In 2007 and 2008, deep percolation accounted for 50.1% and 47.9% of the water outflow, respectively, with corresponding depleted fractions of 0.51 and 0.55, respectively. For the irrigation district as a whole, the water productivity was only 1.37 CNY/m(3). To significantly increase crop water productivity and prevent depletion of the region's groundwater aquifer, it will be necessary to reduce the amount of water used for irrigation. Several water-saving agricultural practices are discussed and recommended.
英文关键词	water accounting water irrigation sources water management water productivity middle Heihe River Basin northwestern China
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000391108500005
WOS关键词	TREE CONDUCTANCE ; MAIZE PRODUCTION ; PENMAN-MONTEITH ; WINTER-WHEAT ; PRODUCTIVITY ; EVAPOTRANSPIRATION ; OASIS ; YIELD ; SYSTEM ; REGION
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院西北生态环境资源研究院 ; 南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331307
作者单位	[Chang, XueXiang; Liu, Bing; Liu, Hu] Chinese Acad Sci Linze Inland River Basin Res Stn, Cold & Arid Regions Environm & Engn Res Inst, Key Lab Ecohydrol Inland River Basin, CAS, Lanzhou 730000, Gansu, Peoples R China; [Li, ShouBo] Nanjing Univ Informat Sci & Technol, Sch Remote Sensing, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Chang, XueXiang,Liu, Bing,Liu, Hu,et al. Water accounting for conjunctive groundwater and surface water irrigation sources: A case study in the middle Heihe River Basin of arid northwestern China[J]. 中国科学院西北生态环境资源研究院, 南京信息工程大学,2015,7(6):687-701.
APA	Chang, XueXiang,Liu, Bing,Liu, Hu,&Li, ShouBo.(2015).Water accounting for conjunctive groundwater and surface water irrigation sources: A case study in the middle Heihe River Basin of arid northwestern China.SCIENCES IN COLD AND ARID REGIONS,7(6),687-701.
MLA	Chang, XueXiang,et al."Water accounting for conjunctive groundwater and surface water irrigation sources: A case study in the middle Heihe River Basin of arid northwestern China".SCIENCES IN COLD AND ARID REGIONS 7.6(2015):687-701.