Water consumption in artificial desert oasis based on net primary productivity

	Water consumption in artificial desert oasis based on net primary productivity
	Zhao WenZhi 1,2; Niu ZuiRong 1; Chang XueLi 3; Li ShouBo 1,2
刊名	SCIENCE CHINA-EARTH SCIENCES
	2010-09-01
卷号	53 期号:9 页码:1358-1364
关键词	Net Primary Productivity (Npp) Transpiration Coefficient Water Consumption Oasis
文献子类	Article
英文摘要	Analysis of the water consumption is the basis for water allocation in oasis. However, the method of estimating oasis water consumption remains a great challenge. Based on net primary productivity (NPP) and the transpiration coefficient, a vegetation water consumption model was developed to estimate the water consumption in desert oasis in ERDAS environment. Our results demonstrated that the ecosystem in the middle reaches of the Heihe oasis consumed water of 18.41x10(8)-21.9x10(8) m(3) for irrigation. Without taking precipitation into account, the water consumption in farmland accounted for 77.1%-77.8% (or about 13.97x10(8)-16.84x10(8) m(3)) of the oasis vegetation water consumption and in the farmland protection system accounting for 22%. The growing period precipitation in desert environments is about 7.02x10u m(3), and the total annual precipitation is about 8.29x10(8) m(3). The modeled water consumption of desert vegetation, however, is about 4.57x10(8) m(3), equivalent to only 65% of the growing period precipitation or 55% of the total annual precipitation. The modeled value equals to the cumulative precipitation of greater than 5 mm, which is defined as the effective precipitation in arid desert.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000281686200012
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/67957]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhao WenZhi
作者单位	1.Chinese Acad Sci, Lab Ecohydrol & Integrated River Basin Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China 3.Ludong Univ, Geog & Resource Management Coll, Yantai 264025, Peoples R China
推荐引用方式 GB/T 7714	Zhao WenZhi,Niu ZuiRong,Chang XueLi,et al. Water consumption in artificial desert oasis based on net primary productivity[J]. SCIENCE CHINA-EARTH SCIENCES,2010,53(9):1358-1364.
APA	Zhao WenZhi,Niu ZuiRong,Chang XueLi,&Li ShouBo.(2010).Water consumption in artificial desert oasis based on net primary productivity.SCIENCE CHINA-EARTH SCIENCES,53(9),1358-1364.
MLA	Zhao WenZhi,et al."Water consumption in artificial desert oasis based on net primary productivity".SCIENCE CHINA-EARTH SCIENCES 53.9(2010):1358-1364.