民勤绿洲水资源调度的生态环境效应  

Environmental effects of surface water reallocation in Minqin Oasis

作　　者：杨怀德[1,2,3] 冯起[1,2] 黄珊[1,2,3] 李勇进[4] 

机构地区：[1]中国科学院西北生态环境资源研究院,兰州730000 [2]中国科学院内陆河流域生态水文重点实验室,兰州730000 [3]中国科学院大学,北京100049 [4]兰州大学哲学社会学院社会学与人口学研究所,兰州730000

出　　处：《干旱区资源与环境》2017年第7期68-73,共6页Journal of Arid Land Resources and Environment

基　　金：中国科学院创新国际团队项目(Y42AC71001)资助

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。Serious shortage of surface water resources is the dominant iactor that caused the ecological security continuing decline in the desert -oasis regions. In order to restore and protect the seriously damaged ecological system of the Minqin oasis urgently, a policy, that aimed at rational allocation of water resources in the whole ba- sin scale, was implemented from 2007 to ensure the water demand of the downstream oasis by the measure of ec- ological water conveyance and transfer. Therefore, based on the background of the policy measure, the statistical method and literature review method were used to analyze and evaluate eco - environmental effects from 6 as- pects： groundwater level change, groundwater mineralization, forest and grass vegetation, land resources utiliza- tion, desertification area, and responses of the rump lake. Results showed that restoration and improvement of ecological environment appeared in part areas of the Minqin oasis, and the efffect in Qingtu Lake was the most obvious. However, the effect of the overall restoration and reconstruction of the ecological environment was not clear, especially for the hysteresis response of groundwater system.

关 键 词：生态治理政策 水资源调度 环境效应 民勤绿洲 

分 类 号：TV213[水利工程—水文学及水资源]