基于DRASTIC模型的衡水市地下水脆弱性数值模拟研究

Groundwate vulnerability assess

地下水是衡水市水资源的重要组成部分,是生产、生活、生态用水的重要来源。地下水脆弱性评价是指由于自然条件变化或人类活动影响,对地下水遭受破坏的趋向和可能性进行评价,是地下水资源保护的重要手段。基于DRASTIC模型,根据衡水市实际情况选取7个不同的评价指标,利用Arcgis软件叠加计算对衡水市地下水进行脆弱性评价,得出衡水市脆弱性由北部向南部递减。评价结果对于衡水市开展地下水资源保护、地下水开发利用、地下水污染治理等具有一定指导意义。

Groundwater is an important part of water resource in Hengshui City.It is the main source of water for production,life and irrigation.Groundwater vulnerability assessment refers to the evaluation of the tendency and possibility of groundwater damage due to changes in natural conditions or human activities,Groundwater vulnerability assessment is an important means to protect regional groundwater resources.Based on the DRASTIC Model,according to the actual situation of Hengshui City,seven different evaluation indexes are selected.The groundwater vulnerability assessment of Hengshui groundwater was carried out by superposition calculation of Arcgis software.It is concluded that the vulnerability of Hengshui city decreases from north to south.It has certain guiding significance for the research of groundwater resources protection,groundwater exploitation and utilization,groundwater pollution control in Hengshui City.