日照市地下水动态特征及演化规律

Dynamic characteristics and evolution law of groundwater in Rizhao City,Shandong

文章首先介绍了日照市监测站的发展,然后根据区域水文地质条件,将日照市地下水类型分为碎屑岩类孔隙裂隙水、碳酸盐岩类裂隙岩溶水及基岩裂隙水4个含水岩组,并根据日照市多年地下水监测数据,选取了有代表性的4个监测点分析了日照市地下水水位动态特征,进而总结出水位的演化规律:日照市地下水水位受大气降水和开采量的影响较大,多年呈波浪起伏状态;选取了7个监测点分析了日照市地下水水质动态特征,总结出水质的演化规律:氯含量逐年升高和水平分带性,人类活动是本区地下水水质变化的直接因素,为合理开发利用地下水资源与国民经济发展提供科学依据。

This paper firstly introduces the development of monitoring stations in the City of Rizhao.Then,according to the regional hydrogeological conditions,this paper divided the groundwater types in Rizhao into four water-bearing rock groups:clastic rock pore fissure water,carbonate rock fissure karst water and bedrock fissure water.Based on many years’ monitoring data for groundwater in Rizhao,four representative monitoring points were selected to analyze the dynamic characteristics of groundwater level in the City of Rizhao,and then the evolution law of groundwater level is summarized.Groundwater level in Rizhao is greatly influenced by atmospheric precipitation and exploitation amount,and has a wavy state for many years.Seven monitoring points were selected to analyze the dynamic characteristics of groundwater quality in Rizhao City.The evolution law of groundwater quality was summarized:chlorine content increased year by year and horizontal zoning.Human activities are the direct factors of groundwater quality changes in this area,providing scientific basis for rational development and utilization of groundwater resources and national economic development.