Assessment of sources and fate of nitrate in shallow groundwater of an agricultural area by using a multi-tracer approach
作者： Ernesto Pastén-Zapata , Rogelio Ledesma-Ruiz , Thomas Harter , Aldo I. Ramírez , Jürgen Mahlknecht
DOI: 10.1016/J.SCITOTENV.2013.10.043
关键词: Denitrification 、 Hydrology 、 Aquifer 、 Manure 、 Pollution 、 Nitrate 、 Groundwater 、 Wastewater 、 Groundwater recharge 、 Environmental science 、 Environmental engineering
摘要: Nitrate isotopic values are often used as a tool to understand sources of contamination in order to effectively manage groundwater quality. However, recent literature describes that biogeochemical reactions may modify these values. Therefore, data interpretation is difficult and often vague. We provide a discussion on this topic and complement the study using halides as comparative tracers assessing an aquifer underneath a sub-humid to humid region in NE Mexico. Hydrogeological information and stable water isotopes indicate that …
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