民勤绿洲水资源调度的生态环境效应

发布时间：2018-05-21 10:08

本文选题：生态治理政策 + 水资源调度　；参考：《干旱区资源与环境》2017年07期

【摘要】：地表水资源的严重短缺是荒漠绿洲区生态安全状况不断下降的主导因素。基于对民勤绿洲地表水资源调度的现状分析,运用计量统计和文献调查法,分别从地下水位、地下水矿化度、林草植被、土地资源利用、沙漠化面积变化以及尾闾湖泊响应等方面评价了水资源调度的生态环境效应。结果表明,水资源合理配置调度后,下游民勤绿洲各生态环境因子均出现不同程度的局部恢复和好转,其中尾闾湖区响应最为明显,但基于整体恢复和重建生态环境目标的效应尚不明朗,尤其是绿洲地下水系统响应迟滞。
[Abstract]:The serious shortage of surface water resources is the leading factor of the declining ecological security in desert oasis area. Based on the analysis of the current situation of surface water resources regulation in Minqin oasis, the methods of econometric statistics and literature investigation were used to analyze the groundwater table, groundwater mineralization, forest and grass vegetation, and land resource utilization, respectively. The ecological and environmental effects of water resources regulation were evaluated from the aspects of desertification area change and the response of the tail lake. The results show that after the rational allocation of water resources, the ecological environmental factors of Minqin oasis in the lower reaches all appear partial recovery and improvement to varying degrees, and the response of the tail lake region is the most obvious. However, the effect based on the goal of whole restoration and reconstruction of ecological environment is not clear, especially the response of oasis groundwater system is delayed.
【作者单位】：中国科学院西北生态环境资源研究院;中国科学院内陆河流域生态水文重点实验室;中国科学院大学;兰州大学哲学社会学院社会学与人口学研究所;
【基金】：中国科学院创新国际团队项目(Y42AC71001)资助
【分类号】：TV213.4

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