caa a22 4500 445299673 CHVBK 20180317142553.0 cr unu---uuuuu 170323e20100901xx s 000 0 eng 10.1007/s11430-010-4028-6 doi (NATIONALLICENCE)springer-10.1007/s11430-010-4028-6 Water consumption in artificial desert oasis based on net primary productivity [Elektronische Daten] [WenZhi Zhao, ZuiRong Niu, XueLi Chang, ShouBo Li] 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 18.41×108-21.9×108 m3 for irrigation. Without taking precipitation into account, the water consumption in farmland accounted for 77.1%-77.8% (or about 13.97×108-16.84×108 m3) of the oasis vegetation water consumption and in the farmland protection system accounting for 22%. The growing period precipitation in desert environments is about 7.02×10u m3, and the total annual precipitation is about 8.29×108 m3. The modeled water consumption of desert vegetation, however, is about 4.57×108 m3, 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. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 net primary productivity (NPP) nationallicence transpiration coefficient nationallicence water consumption nationallicence oasis nationallicence Zhao WenZhi Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut Niu ZuiRong Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut Chang XueLi Geography and Resource Management College, Ludong University, 264025, Yantai, China aut Li ShouBo Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut Science China Earth Sciences SP Science China Press 53/9(2010-09-01), 1358-1364 1674-7313 53:9<1358 2010 53 11430 https://doi.org/10.1007/s11430-010-4028-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-4028-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao WenZhi Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut NATIONALLICENCE 700 1- Niu ZuiRong Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut NATIONALLICENCE 700 1- Chang XueLi Geography and Resource Management College, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 700 1- Li ShouBo Laboratory of Ecohydrology and Integrated River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/9(2010-09-01), 1358-1364 1674-7313 53:9<1358 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer