重庆金佛山地下水的氮污染源研究  

Research on Nitrogen pollution sources of groundwater in Chongqing Jinfo Mt.

作　　者：高彦芳[1] 沈立成[1] 杨平恒[1] 

机构地区：[1]西南大学地理科学学院,重庆北碚400715

出　　处：《水资源与水工程学报》2007年第6期23-26,31,共5页Journal of Water Resources and Water Engineering

基　　金：西南大学自然地理学科开放基金(250-411113);教育部博士点基金(20050635001);重庆市科技项目(CSTC;2005AB7006)

摘　　要：为了研究重庆金佛山地区地下水的氮污染情况,于2007年7月采集21个水样,利用阴离子色谱仪和ICP-OES分析主要阴、阳离子,再利用EA-Conflo-IRMS联机测试δ15N-NO3-,分析得知:金佛山地区地下水已经受到NO3--N的威胁,尤其是Group1,污染严重;判断地下水的主要氮污染源有粪肥、化肥、天然土壤、工业废弃物和生活污水等,初步得出该区δ15N的变化范围,为以后深入研究金佛山地区地下水质提供基础。这一研究对金佛山部分村镇居民寻找和饮用地下水具有一定的指导意义。In order to study the Nitrogen pollution of groundwater in Chongqing Jinfo Mt. , collected 21 groundwater samples in July 2007, and analyzed the primary anions and cations with an- ion chromatograph and ICP-OES, then tested δ^15N-NOa with EA-Conflo-IRMS, the results have shown that the groundwater of Jinfo Mt. area has been threatened by NOa-N, especially Group 1 was seriously polluted. According δ^15N to estimate the major sources of nitrogen were manure, fertilizer, natural soils, industrial waste and domestic sewage et al. Thus, preliminary conclusions were drawn about δ^15N scope of the changes, it will be provided a basis for further study of the groundwater in Jinfo Mt. and it will be had the guiding significance to rural residents finding the drinking groundwater in Jinfo Mt. area.

关 键 词：δ^15N 氮污染 地下水 重庆金佛山 

分 类 号：X523[环境科学与工程—环境工程]