基于GIS的晋城市农村饮用水水质分布规律及成因研究

Research on Distribution and Cause of Rural Drinking Water Quality of Jincheng City Based on GIS

在晋城地区选取462个农村饮用水水样进行了水质检测,并基于GIS技术对检测数据进行了统计分析,结果显示:饮用水中硫酸盐、氯化物、硝酸盐(N)、镉、氨(N)、锌的空间分布存在显著差异;饮用水中pH值、氟化物、总硬度、溶解性总固体、硫酸盐、硝酸盐N、氯化物、浑浊度、高锰酸盐指数、氨(N)、镉、铬(六价)和锌的分布均具有特定的空间规律。结合该地区的地质构造、岩层土壤组成、气象、水文以及社会条件等因素,分析了农村饮用水呈现这一分布规律的原因。

In Jincheng City,462 rural drinking water samples were selected for water quality testing.Based on GIS technology,statistical analysis was conducted on the test data.The results showed that there were significant differences in the spatial distribution of sulfate,chloride,nitrate(N),cadmium,ammonia(N),and zinc in drinking water.The distribution of pH value,fluoride,total hardness,total dissolved solids,sulfate,nitrate(N),chloride,turbidity,permanganate index,ammonia(N),cadmium,hexavalent chromium,and zinc in drinking water all had specific spatial patterns.Combined with the geological structure,rock and soil composition,meteorological and hydrological conditions,and social conditions of the area,the reasons for this distribution pattern of rural drinking water were analyzed.