水均衡法评价玛纳斯河流域莫索湾灌区地下水资源

An Evaluation of Groundwater Resources of Mosuowan Irrigation District of the Manas River by Using the Water Balance

莫索湾灌区位于玛纳斯河下游,地下水补给以侧向径流补给和灌溉水入渗补给为主,因此,地下水位多年动态变化特征基本上反映了地下水开采量的变化特征。基于水均衡分析法,分析了研究区地下水资源利用情况,对灌区1998-2007年地下水系列各项补给量和排泄量进行平衡计算,指出灌区地下水位明显受灌溉用水量和人工开采量的双重控制,尤其是人工开采量对地下水位变化影响最大。基于此,地下水开采应该以保证生态环境为前提,合理地开发利用地下水资源,实现地下水资源的可持续利用。

Mosuowan Irrigation District is located in the lower reach of the Manas River. Lateral runoff and irrigation water recharge is the main supply of groundwater. So the years of dynamic characteristics on the groundwater table basically reflects the variation of groundwater extraction. Based on a water balance analysis, this paper analyzes the utilization of groundwater resources, calculates the recharge and excretion of groundwater series in Mosuowan Irrigation District from 1998 to 2007, and points out the groundwater level is mainly affected by the dual control of irrigation water and Manual extraction, especially Manual extraction. Therefore, the purpose of groundwater extraction is to ensure that the ecological environment, utilize rationally the groundwater resources and achieve the goal of sustainable use of groundwater resources.