干旱区研究

Arid Zone Research ›› 2018, Vol. 35 ›› Issue (5): 1030-1039.doi: 10.13866/j.azr.2018.05.04

• Water Resources and Hydrochemistry • Previous Articles     Next Articles

Optimized Redistribution of Water Resources in the Kaidu-Kongque River Basin

WANG Wen-hui1,2, HUANG Yue1, LIU Tie1, MENG Fan-hao1,2, LIU Jiao3   

  1. 1. State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,Xinjiang,China;
    2. University of Chinese Academy of Sciences,Beijing 100049,China;
    3. School of Energy and Power Engineering,Xihua University,Chengdu 610039,Sichuan,China
  • Received:2017-12-11 Revised:2018-01-17 Online:2018-09-15 Published:2018-09-20

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Abstract: Water resources is the key factor to maintain a harmonious social,economic and ecological development in inland river basin.To establish an optimal plan of redistributing water resources is an effective method for improving the efficiency of water resources utilization and alleviating the contradiction between water resources supply and demand based on the current situation of water shortage in the study area.In this paper,the Kaidu-Kongque Watershed was considered as the research area,and the two-stage interval optimization algorithm was used to develop a model of optimizing water resources based on the historical,meteorological,hydrological,land use,social and economic data,and the optimized modes of redistributing water resources for the various industries were carried out.On which the uncertainties of inflow sources and water users could be exactly analyzed,and an optimized redistribution of water resources could be achieved.The results showed that the water consumptions for the urban residents,animal husbandry and secondary and tertiary industries could be basically satisfied,and the water shortage occurred mainly in agriculture,ecology and ecologic water conveyance to the lower reaches of the Tarim River.Regionally,the water shortage in agriculture occurred mainly in Korla City and Hejing County,the ecological water shortage occurred mostly in Bohu County and Korla City,and the water shortage is the most serious and as high as 0.27×108-0.92×108 m3·a-1 in high-inflow year in the lower reaches of the Tarim River.The highest and lowest water shortages occurred in July and January respectively;the most serious water shortage occurred in September,and the water shortage volumes for agriculture and ecology were 0.36×108-1.43×108 m3 and 0.90×108 m3 respectively.Different water management policies could lead to the significant changes of benefits in stream system.Compared with other policy scenarios,the system under the priority of economic benefits could obtain a high water use efficiency.

Key words: two-stage interval optimization algorithm, water resources, optimized water redistribution, policy analysis, inland drainage basin