水资源保护2016，Vol.32Issue(5)：79-84,90,7.DOI:10.3880/j.issn.1004-6933.2016.05.016
同位素溯源解析地下水库对地下水氮分布影响
Analysis of influence of underground reservoir on nitrogen distribution through tracing of isotope source
摘要
Abstract
Taking the Wanghe River Underground Reservoir in Shandong Province as an example, we used nitrogen and oxygen isotopes to analyze the distribution, sources, and transformation of nitrogen in groundwater. We used the IsoSource software to calculate the contribution ratios of different pollution sources, in order to analyze the influence of the underground reservoir on nitrogen distribution in groundwater. The results show that NO3-and TN in groundwater within the underground reservoir had higher concentrations and smaller spatial differences than they did outside of the underground reservoir, and the main nitrogen source was fertilizer in groundwater within the underground reservoir. Denitrification occurred in groundwater within the underground reservoir. The nitrogen in groundwater outside of the underground reservoir was mainly from mariculture and fertilizers. All the results mentioned above indicate that the underground reservoir prevents nitrogen from flowing horizontally, resulting in the accumulation of nitrogen and the enhancement of denitrification of nitrogen in groundwater within the underground reservoir.关键词
地下水库/氮氧同位素/环境影响/氮来源/IsoSource/氮贡献比例Key words
underground reservoir/nitrogen and oxygen isotopes/environmental effects/nitrogen sources/IsoSource/nitrogen contribution ratio分类
天文与地球科学引用本文复制引用
康萍萍,许士国,禹守泉..同位素溯源解析地下水库对地下水氮分布影响[J].水资源保护,2016,32(5):79-84,90,7.基金项目
国家重点基础研究发展计划(973计划)资助项目(2013CB430403) （973计划）
