陕西水利Issue(3)：100-103,4.
开采条件下廊坊城区深层地下水水质演化特征
Evolution Characteristics of Deep Groundwater Quality in Langfang Urban Area under Mining Conditions
摘要
Abstract
Using groundwater quality data from 2019,historical water quality data,and water level data from typical monitoring points in the urban area of Langfang,this study analyzes the evolution characteristics of groundwater quality in the study area considering hydrogeological conditions and mining activities.The results show that:① The deep groundwater in the study area is alkaline,classified as fresh water,with stable spatial distribution of TDS.There may be localized nitrogen pollution in deep groundwater,but it is relatively mild.Fluoride content is generally high and unevenly distributed spatially.Oxygen consumption shows strong spatial variability,indicating potential localized organic pollution.② Since the availability of monitoring records,the deep groundwater in the study area has shifted from a bicarbonate-chloride type to a bicarbonate type;changes in water chemistry types,TDS,and fluoride mainly occur in the funnel areas of deep confined aquifers due to over-extraction.③ In typical monitoring points of deep groundwater,total hardness and TDS have generally shown a pattern of slow increase followed by stabilization over time,while fluoride levels have fluctuated upward.Groundwater extraction is closely related to the salinization,hardening,and increased fluoride content of deep groundwater.关键词
水质演化/开采条件/氟化物Key words
Water quality evolution/mining conditions/fluoride分类
环境科学引用本文复制引用
李堃正,张凯,张旭虎,朱小龙,王子逸..开采条件下廊坊城区深层地下水水质演化特征[J].陕西水利,2025,(3):100-103,4.基金项目
国家科技基础资源调查专项(2017FY100405) （2017FY100405）
