中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
THE BALANCE BETWEEN SUPPLY AND DEMAND OF WATER RESOURCES AND THE WATER-SAVING POTENTIAL FOR AGRICULTURE IN THE HEXI CORRIDOR

文献类型:期刊论文

作者Gao Qian-zhao; Du Hu-lin; Zu Rui-ping
刊名CHINESE GEOGRAPHICAL SCIENCE
出版日期2002-03-01
卷号12期号:1页码:23-29
关键词water resources balance between supply and demand water-saving potential of agriculture Hexi Corridor
ISSN号1002-0063
通讯作者Gao Qian-zhao()
英文摘要The Hexi Corridor is an important base of agriculture development in Northwest China. According to recent statistics, there are 65.94 x 10(8)m(3) of water resources available in the Hexi Corridor. At present, net consumption in development and utilization is 43.33 x 10(8)m(3). Water supply and demand reach a balance on the recent level of production, but loss of evaporation and evapotranspiration is as much as 25.69 x 10(8)m(3). So net use efficiency of water resources is 59%. Based on analyzing balance between water and land considering ecological environment at present, there exists the serious water shortage in the Shiyang River system where irrigation lands have overloaded. There is a comparative balance between supply and demand of water resource in the Heihe River system; and the Sule River system has some surplus water to extend irrigation land. Use of agriculture water accounts for 83.3% and ecological forest and grass for 6.9%. The Hexi Corridor still has a great potential for water saving in agriculture production. Water-saving efficiency of irrigation is about 10% by using such traditional technologies as furrow and border-dike irrigation and small check irrigation, and water-saving with plastic film cover and techniques of advanced sprinkler and drip/micro irrigation etc. can save more than 60% of irrigated water. Incremental irrigation area for water-saving potential in the Hexi Corridor has been estimated as 56%-197% to original irrigation area. So the second water sources can be developed from water saving agriculture in the Hexi Corridor under Development of the Western Part of China in large scale. This potential can be realized step by step through developing the water-saving measures, improving the ecological condition of oasis agriculture, and optimizing allocation of water resources in three river systems.
收录类别SCI
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
语种英语
WOS记录号WOS:000206553000004
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2556808
专题寒区旱区环境与工程研究所
通讯作者Gao Qian-zhao
作者单位Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Gao Qian-zhao,Du Hu-lin,Zu Rui-ping. THE BALANCE BETWEEN SUPPLY AND DEMAND OF WATER RESOURCES AND THE WATER-SAVING POTENTIAL FOR AGRICULTURE IN THE HEXI CORRIDOR[J]. CHINESE GEOGRAPHICAL SCIENCE,2002,12(1):23-29.
APA Gao Qian-zhao,Du Hu-lin,&Zu Rui-ping.(2002).THE BALANCE BETWEEN SUPPLY AND DEMAND OF WATER RESOURCES AND THE WATER-SAVING POTENTIAL FOR AGRICULTURE IN THE HEXI CORRIDOR.CHINESE GEOGRAPHICAL SCIENCE,12(1),23-29.
MLA Gao Qian-zhao,et al."THE BALANCE BETWEEN SUPPLY AND DEMAND OF WATER RESOURCES AND THE WATER-SAVING POTENTIAL FOR AGRICULTURE IN THE HEXI CORRIDOR".CHINESE GEOGRAPHICAL SCIENCE 12.1(2002):23-29.

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来源:寒区旱区环境与工程研究所

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