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Using δ15N- and δ18O-Values To Identify Nitrate Sources in Karst Ground Water, Guiyang, Southwest China
Nitrate pollution of the karstic groundwater is an increasingly serious problem with the development of Guiyang, the capital city of Guizhou Province, southwest China. The higher content of NO3- in…
Geochemistry of dissolved inorganic carbon and carbonate weathering in a small typical karstic catchment of Southwest China: Isotopic and chemical constraints
Using delta15N- and delta18O-values to identify nitrate sources in karst ground water, Guiyang, southwest China.
- Cong-Qiang Liu, Si‐Liang Li, Yunchao Lang, Huayun Xiao
- Environmental ScienceEnvironmental science & technology
Nitrate is the major dominant species of nitrogen in most water samples and there is a big variation of nitrate sources in groundwater between winter and summer season, due to fast response of groundwater to rain or surface water in the karst area.
Geochemistry of surface and ground water in Guiyang, China: Water/rock interaction and pollution in a karst hydrological system
Identification of Anthropogenic and Natural Inputs of Sulfate and Chloride into the Karstic Ground Water of Guiyang, SW China: Combined δ37Cl and δ34S Approach
Because of active exchange between surface and groundwater of a karstic hydrological system, the groundwater of Guiyang, the capital city of Guizhou Province, southwest China, has been seriously…
Sources and transport of nitrate constrained by the isotopic technique in a karst catchment: an example from Southwest China
The concentration and isotopic composition of nitrate were analyzed to improve an understanding of nitrate sources and transformation processes in a typical karstic agricultural field in the Houzhai…
Tracing the sources of nitrate in karstic groundwater in Zunyi, Southwest China: a combined nitrogen isotope and water chemistry approach
Nitrate (NO3−) is major pollutant in groundwater worldwide. Karst aquifers are particularly vulnerable to nitrate contamination from anthropogenic sources due to the rapid movement of water in their…
Carbon Biogeochemistry of Ground Water, Guiyang, Southwest China
- Si‐Liang Li, Cong-Qiang Liu, F. Tao, Yunchao Lang, G. Han
- Environmental Science, GeographyGround water
- 1 July 2005
Evidence that the delta13C(DIC) values of ground water decrease with increasing concentrations of anthropogenic species shows that the carbon isotopic composition of DIC can be a useful tracer of contamination, in addition to biogeochemical cycling of inorganic carbon in ground water.
Evaluation of nitrate source in surface water of southwestern China based on stable isotopes
Stable isotope tracing and analysis play an important role in interpretation of hydrological and ecological processes at the watershed scale and can provide information regarding the flow path, water…