Assessing spatial and temporal variability in waterconsumption and the maintainability oasis maximumarea in an oasis region of Northwestern China  

作　　者：XueXiang Chang WenZhi Zhao XueLi Chang Bing Liu Jun Du 

机构地区：[1]Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Linze Inland River Basin Research Station,Key Laboratory of Ecohydrology of Inland River Basin,CAS,Lanzhou,Gansu 730000,China [2]School of Natural Resources and Environmental Engineering,Ludong University,Yantai,Shandong 264025,China

出　　处：《Research in Cold and Arid Regions》2020年第4期217-233,共17页寒旱区科学（英文版）

基　　金：This study was funded under the National Natural Science Foundation of China project(91425302).

摘　　要：Water consumption is a key role in improving the efficiency and sustainability of water management in arid environments.In this study, we explored an approach based on meta-analysis, MODIS NDVI products, land-use spatial distribution, andsoil water physical parameters to gain insight into long-term and large scale distribution of land use and water consumption,maintain maximum Zhangye Oasis area according to Heihe River runoff, and suitable water resource management inZhangye Oasis. This approach was initiated in order to improve the efficiency of irrigation and water resource managementin arid regions. Results showed that Heihe River runoff can maintain a maximum Zhangye Oasis area of 22.49×104 hm2.During the 2000−2016 growing seasons, actual oasis water consumption ranged from 11.35×108 m3 to 13.73×108 m3, witha mean of (12.89 ± 0.60)×108 m3;if maintaining agricultural production and oasis stability was chosen, oasis water consumptionranged from 10.24×108 m3 to 12.37×108 m3, with a mean of (11.62 ± 0.53)×108 m3. From the perspective of waterresources management and ecosystem stability, it is necessary to reduce the area of Zhangye Oasis or choose the minimumwater consumption method to manage the oasis, to ease the pressure of water shortage and maintain stable and sustainabledevelopment of the Zhangye Oasis. These results can provide future practical guidance for water resource management ofcoordinated development of the economy and the environment in an arid area.

关 键 词：META-ANALYSIS water consumption land-use spatial and temporal distribution RUNOFF Northwestern China 

分 类 号：TV213.4[水利工程—水文学及水资源]