摘要
在调查曲靖市东部山地岩溶水系统基本特征和分析多年地下水质监测资料的基础上,运用内梅罗综合指数法对岩溶区地下水质量现状进行评价,并采用Spearman秩相关系数法分析了1993～2006年来水源地水质变化趋势。结果表明,水源地水质保持在Ⅱ级优良级别。从变化趋势看,总硬度、铵氮浓度呈逐年上升趋势,水源区北部的硝酸盐含量也呈上升趋势,地下水质量总体呈下降趋势。
Based on the investigation of karst water system character of Eastern Mountain in Qujing and the water quality monitoring data, current situation of water quality in karst groundwater was evaluated by Nemero Index Method. And the changing trend of water quality in source area from 1993 to 2006 was analyzed by the method of Spearman＇s rank correlation coefficient. The result shows the water quality in source area keep in the range of second-level. Content of total hardness and NH4＋ rises yearly;content of NO3-N also has the rising trend in the north of groundwater source area;the water quality of groundwatertotally occurs declining trend.
出处
《资源环境与工程》
2008年第5期524-528,共5页
Resources Environment & Engineering
基金
云南省自然科学基金项目(2006D0019M)
中国地质调查局项目(1212010540104)
关键词
岩溶水源地
现状评价
变化趋势
曲靖
karst groundwater source area
evaluation
changing tendency
Qujing
