流域地下水化学污染成因及尺度效应研究  

Research on Causes and Scale Effects of Chemical Pollution of Groundwater in River Basins

作　　者：李毓茜 Li Yuqian(Baoding Ecological Environment Monitoring Center,Baoding 071000,China)

机构地区：[1]保定市生态环境监控中心,河北保定071000

出　　处：《环境科学与管理》2025年第2期125-129,共5页Environmental Science and Management

摘　　要：地下水作为流域周边地区的关键水源,其供给安全性至关重要。为确保安全,文章对流域地下水化学污染的成因及尺度效应进行了深入分析。在研究区进行了广泛的调查取样,运用单因子指数法、Pearson线性关联系数等方法,探究了不同位置和深度的地下水化学污染形成机理及其时空尺度效应。结果表明,地下水开采、养殖业、农业活动和煤矿开采是主要污染源。研究区地下水硬度偏高,浅层地下水溶解性固体总量大,硝酸盐污染严重。同时,地下水污染物排放强度在空间分布上存在明显差异,需采取针对性措施加以治理。Groundwater,a vital water source in watershed surroundings,ensures supply security.This article analyzes causes and scale effects of groundwater chemical pollution.Investigations and sampling were done using methods like single factor index and Pearson linear correlation coefficient to explore formation mechanisms and spatio-temporal scale effects at different locations and depths.Results show that groundwater extraction,aquaculture,agricultural activities,and coal mining are main pollution sources.Groundwater hardness is high,dissolved solids in shallow groundwater are abundant,and nitrate pollution is severe.Spatial distribution of groundwater pollutant discharge intensity varies significantly,requiring targeted measures for control.

关 键 词：地下水 化学污染 尺度效应 水化学特征 

分 类 号：X523[环境科学与工程—环境工程]