Evaluation of water resources allocation schemes of oasis intake areas based on water resource security assessment: A case study of Karamay city
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Abstract:
Water resource security problem has become one of the important factors which restrict the economic development of Karamay. Based on the investigation into the development and utilization of water resources in Karamay, an evaluation index system for water resource security was established. Considering the space, time, water use, and water sources, we took two steps: ① We selected 12 indexes to build the water resource security evaluation system, and used the analytic hierarchy process (AHP) to build a judgment matrix so as to determine the weight of each factor. ② We combined various types of water demand and water supply schemes to generate various dispatching schemes, and thus form a water resources allocation scheme set. At the same time, we set up water resource security indexes for each scheme, and used AHP to select the optimum results of the WRMM model. Then we evaluated and analyzed the water resource security situation of Karamay in 2011. According to the water resource security index system, the optimal water resources allocation scheme was Scheme 8, whose water supply guarantee rate was up to 100%, water resources exploitation rate was 57%, and irrigation water utilization coefficient was up to 0.75. This research has provided a scientific basis for utilization of water resources and management of water resource security in Karamay.
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