论文摘要
As nitrate pollution in groundwater has become increasingly serious in recent years, nitrogen isotope was adopted in this paper to define its sources in a typical agricultural area of Dong’e hydrogeological unit. The results show that: Higher content of NO3- detected in shallow groundwater is 27.77 mg/L on average and δ15 N content ranges from 7.8‰ to 12 ‰, indicating that shallow groundwater is mainly contaminated by sewage or feces. In contrast, less NO3- in deep groundwater（karst water） has an average value of 12.81 mg/L and δ15 N content is between 7.2‰ and 14.3‰, which is closely related to human disturbance as mentioned above. In addition, considering relatively low groundwater quality at some monitoring sites, reasonable fertilization is a better choice in the study area to reduce nitrate source in groundwater.
论文目录
文章来源
类型: 期刊论文
作者: LI Yang,KANG Feng-Xin,ZOU An-de
来源: Journal of Groundwater Science and Engineering 2019年02期
年度: 2019
分类: 基础科学,工程科技Ⅰ辑
专业: 环境科学与资源利用
单位: Shandong Geophysical and Geochemical Exploration Institute,Shandong Soil Geochemical Engineering Laboratory,Shandong Provincial Bureau of Geology and Mineral Resources,Shandong Provincial Research Center of Geological Survey Technology
基金: supported by the Shandong Provincial Natural Science Foundation,China (No. ZR2017QD017),Special Support for Post-doc Creative Funding in Shandong Province (No. 201502020)
分类号: X523
DOI: 10.19637/j.cnki.2305-7068.2019.02.005
页码: 145-154
总页数: 10
文件大小: 761K
下载量: 12
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