贵州六冲河流域地下水资源特征与评价  

Characteristics and Evaluation of Groundwater Resources in Liuchong River Basin of Guizhou

作　　者：陈宏峰[1,2] 夏日元[2] 唐建生[1,2] 李兆林[2] 

机构地区：[1]中国地质大学(北京)水资源环境学院,北京100083 [2]中国地质科学院岩溶地质研究所,广西桂林541004

出　　处：《安徽农业科学》2010年第18期9704-9706,9783,共4页Journal of Anhui Agricultural Sciences

基　　金：国家重点基础研究发展计划(973计划)(2006CB202400);岩溶所所控基金项目(2008006);国家地质调查项目(121-2010782003-11)

摘　　要：介绍了六冲河流域概况和地下水资源分布特征,采用降水入渗系数法、径流模数法和枯季径流模数法计算了各个分区的地下水天然补给量、排泄量和可采资源量,并对水质进行了评价。结果表明,有41个水样中NO3-超出地下水质量2类标准,与采样点附近的洼地和坡地区农业生产的排放有直接关系;29个水样中Cr(六价)含量超出地下水质量2类标准,11个水样中Mn含量超出地下水质量2类标准,污染源主要来自取样点上游城镇工厂排污、煤矿矿坑排水;P2l含煤系地层中地下水超出2类标准的指标数目相对较多,尤其是重金属含量;除直接取自煤矿排水的水样以外,其余地下水均符合地下水质量3类标准。The general situations of Liuchong River Basin and the distribution characteristics of groundwater resources were introduced.Using precipitation infiltration coefficient method,runoff modulus method and dry-season runoff modulus method,the natural recharge amount,discharge amount and recoverable amount of groundwater in each subarea were calculated.And the water quality was evaluated.The results showed that NO3-in 41 water samples exceeded the second standard of groundwater quality,which had a direct relation with the discharge of agricultural production in depression and slope land around the sampling sites.Cr6＋ content in 29 water samples exceeded the second standard of groundwater quality.Mn content in 11 water samples exceeded the second standard of groundwater quality.The main pollution sources were the dredging from the factories of the upstream towns and the coal mine drainage.Many indices of groundwater in P2l coal-bearing stratum exceeded the second standards of groundwater quality,especially heavy metal content.Except the water samples directly from coal mine drainage,other groundwater accorded with the third standards of groundwater quality.

关 键 词：六冲河流域 岩溶水 天然资源量 可采资源量 

分 类 号：P641.8[天文地球—地质矿产勘探]