民勤绿洲水资源利用的综合效益评价

发布时间：2018-05-08 11:37

本文选题：水资源利用 + 效益评价　；参考：《冰川冻土》2015年06期

【摘要】：水资源利用是民勤绿洲发展兴衰的关键影响因素.将民勤绿洲水资源利用的历程划分为三个典型时期——"以粮为纲"时期、改革开放时期、生态保护时期,并以其作为研究的特征时期,建立了民勤绿洲水资源利用综合效益评价的数学模型.利用网络层次分析法确定各项指标权重,基于网络层次分析法的运算结果,对民勤绿洲水资源利用的综合效益进行了定量评价,结果表明:"以粮为纲"时期,生态效益开始下降,水资源利用的效果欠佳;改革开放时期,经济效益和社会效益均明显增长,但生态效益出现新一轮下降,水资源利用的效果有利有弊;生态保护时期,尤其是石羊河流域重点治理规划实施之后,生态、经济和社会效益都开始上升,水资源利用的效果相对最佳.评价结果旨在为类似地区水资源利用政策措施的改进提供决策依据.
[Abstract]:The utilization of water resources is the key factor influencing the development of Minqin oasis. The process of water resources utilization in Minqin oasis is divided into three typical periods: "grain as the outline" period, the period of reform and opening up, the period of ecological protection, and the characteristic period of its research. A mathematical model for comprehensive benefit evaluation of water resources utilization in Minqin oasis was established. The weight of each index is determined by using the analytic hierarchy process (AHP) of network. Based on the results of the calculation of the analytic hierarchy process, the comprehensive benefit of water resources utilization in Minqin oasis is quantitatively evaluated. The results show that: in the period of taking grain as the outline, In the period of reform and opening up, both economic and social benefits have increased significantly, but the ecological benefits have declined in a new round, and the effects of water resources utilization have had advantages and disadvantages; and in the period of ecological protection, Especially after the implementation of the key control plan of Shiyang River Basin, ecological, economic and social benefits are all rising, and the effect of water resources utilization is relatively best. The evaluation results aim to provide decision basis for the improvement of water resources utilization policy measures in similar areas.
【作者单位】：中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室;中国科学院大学;中国科学院科技战略咨询研究院;
【基金】：中国科学院重点部署项目(KZZD-EW-04-05)资助
【分类号】：TV213.9;F323.213

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