河北省衡水市地下水水位动态特征分析

Analysis of Dynamic Characteristics of Groundwater Level in Hengshui City,Hebei Province

衡水市作为华北平原缺水最为严重的地区之一,水资源的供需矛盾极为突出,通过分析衡水市的气象、水文、地形地貌、地质、水文地质条件及多年以来的地下水位动态监测数据,结合当地社会经济发展情况,运用多种数据统计的方法对地下水水位动态变化特征及其影响因素进行分析,以期为衡水市地下水资源合理开发与利用提供科学依据。分析结果认为,衡水市地下水动态类型主要分为五种,其中浅层分为降水入渗蒸发型、降水入渗开采型、农业灌溉-降水入渗蒸发型,深层分为越流补给开采型、侧向径流-越流补给开采型。其中气象和人工开采是地下水位动态的主要影响因素。

Hengshui City is one of the areas with the most severe water shortages in the North China Plain.The contradiction between supply and demand of water resources is extremely prominent.This paper analyzes the meteorological,hydrological,topographical and geomorphological conditions,geology,hydrogeological conditions of Hengshui City,and the dynamic monitoring data of groundwater levels for many years.Based on the local socio-economic development situation,a variety of data statistics methods are used to analyze the dynamic changes of groundwater level and its influencing factors,with a view to providing scientific basis for the rational development and utilization of groundwater resources in Hengshui City.The analysis results show that the dynamic types of groundwater in Hengshui city are mainly divided into five types.The shallow layer is divided into precipitation infiltration evaporation type,precipitation infiltration mining type,agricultural irrigation-precipitation infiltration evaporation type,and the deep layer is divided into cross-flow recharge mining type,Lateral runoff-overflow recharge mining.Meteorology and artificial mining are the main influencing factors of groundwater level dynamics.