长江三角洲地区地下水调查点特殊分布的评价方法解析  

Analysis of the Special Distribution of Groundwater Survey Points in the Yangtze River Delta

作　　者：黄金玉 姜月华 苏晶文 张泰丽 

机构地区：[1]南京地质调查中心,南京210016

出　　处：《地质学报》2016年第10期2948-2961,共14页Acta Geologica Sinica

基　　金：中国地质调查局项目"长江三角洲地区地下水污染调查评价"(1212010634400)项目资助的成果

摘　　要：为了查明长江三角洲地区地下水污染状况,综合评价地下水污染程度及变化趋势,为该地区地下水污染防治和地下水资源保护、保障饮水安全提供科学依据。地下水污染评价是以地下水污染调查资料为依据,结合评价区的污染源分布、土地利用分区、第四纪地质和水文地质条件等进行,对潜水和承压水(微承压水、第Ⅰ承压水、第Ⅱ承压水、第Ⅲ承压水、第Ⅳ承压水)分别进行单指标污染评价、分类指标污染评价和综合污染评价。分析现使用GIS软件网格等值线成图特点,根据调查评价点分布不均匀的特征,结合Kriging网格等值线分析方法,对等值线绘制方法和运算函数进行解析,总结出更精确更适用的分析方法,对调查点具有不均匀特征的地区进行地下水污染程度及变化趋势的综合评价。将新的方法应用于单指标质量评价、防污性能评价、不同类型调查点投影等,并依据分析结果开发GPSE-Data系统,使整个质量评价过程更简便快捷。In order to identify groundwater pollution situation in the Yangtze River Delta region,a comprehensive evaluation of groundwater pollution levels and trends,for the prevention and treatment of groundwater contaminated areas and protection of groundwater resources,protect the safety of drinking water to provide a scientific basis.Evaluation of groundwater pollution groundwater pollution investigation is based on information,combined with pollution distribution evaluation areas,land use zoning,Quaternary geology and hydrogeology conditions for diving and confined water（micro-pressure water,theⅠconfined water,theⅡ confined water,theⅢ confined water,theⅣconfined water）were single index pollution assessment, pollution assessment and classification index comprehensive evaluation of contamination.Analysis using GIS software now mesh contour mapping features,uneven distribution characteristics according to the survey evaluation points,combined with Kriging grid contour analysis,contour drawing methods of operation and functions for analysis,a more accurate summary analysis method is more applicable to the survey points with uneven feature regional comprehensive evaluation of groundwater pollution levels and changing trends.The new method was applied to evaluate the quality of a single index,the antifouling performance evaluation,different types of survey points and projection,and based on results of the analysis developed GPSE-Data system,so that the whole quality of the evaluation process easier and faster.

关 键 词：单指标质量评价 防污性能评价 不规则分布 KRIGING 长江三角洲 GPSE-Data系统 

分 类 号：X523[环境科学与工程—环境工程] X824