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基于监测数据的全国地下水质动态变化特征研究
投稿时间:2020-02-27  修订日期:2020-05-12  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2020088
摘要点击次数: 37
全文下载次数: 45
作者单位E-mail
殷秀兰 中国地质环境监测院 yinxl@cigem.cn 
李圣品 中国地质环境监测院  
中文摘要:地下水质动态变化及其趋势研判是区域水资源调配决策的重要依据。本文以全国2007-2017年国家级地下水监测网水质数据为基础,结合典型地区的代表性监测组分超标特征及动态趋势,开展了地下水质动态变化过程研究,结果表明:全国地下水监测中以Ⅳ类水质点占比最大,其次为Ⅱ类水质点;Ⅰ-Ⅲ类水质点数量较少,而且占比以降低为主,Ⅳ和Ⅴ类地下水监测点逐渐增加,其中Ⅳ类水质点的比例由40.50%增加至了51.45%;全国地下水质主要的超标组分为pH、总硬度、总溶解性固体、硫酸盐、氯化物、高锰酸钾指数、铁、锰、氟化物、“三氮”。以华北地区、华东地区、西南地区和西北地区为代表,分析研究典型地区地下水质的动态变化过程及其影响因素,结果显示,在地下水位变化较大的地区,地下水质状况随着地下水位变化明显,在地下水位波动较小的地区,地下水质状况也基本上变化较小。研究成果对于科学评价地下水资源、合理制定区域地下水开发利用规划、防治地下水污染等具有一定指导作用。
中文关键词:地下水监测  水质  污染  典型地区  动态变化
 
National groundwater quality dynamic from 2007 to 2017
Author NameAffiliationE-mail
Yin Xiulan China Institute of Geo-Environment Monitoring yinxl@cigem.cn 
Li Shengpin China Institute of Geo-Environment Monitoring  
Abstract:Understanding the dynamic variation of groundwater quality can support the analysis of groundwater quality and regional water resources allocation. The dynamic variation of groundwater were investigated based on the groundwater monitoring data from national grade monitoring wells from 2007 to 2017, and groundwater level dynamic trends and pollutants distribution characters in typical areas. The results showed that the quality of class Ⅳ and Ⅱ were mainly part of the groundwater. The number of groundwater quality of class I-III was relatively small, and the proportion was mainly decreased in recent years. The number of groundwater quality of class Ⅳ and Ⅴ were increased, especially for the groundwater quality of class Ⅳ, the proportion was increased from 40.50% to 51.145%. The mainly contaminants in groundwater were pH, Total hardness, total dissolved solids, sulfate, chloride, potassium permanganate index, iron, manganese, fluoride, ammonium, nitrate, and nitrite, the groundwater quality was related obviously with the groundwater level variation in typical areas. The study of the groundwater quality dynamics can provide support for scientific evaluation of groundwater resources, formulation of reasonable development and utilization plans of water resources, and prevention and control of groundwater pollution.
keywords:groundwater monitoring  groundwater quality  pollution  typical area  dynamic variation
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