Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope

Identification of nitrate sources is important for the management of rivers. In this study, stable isotopes (δ15N and δ18O) and a Bayesian model (stable isotope analysis in R, SIAR) were applied to identify nitrate sources and estimate the proportional contributions of multiple nitrate sources in th...

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Main Authors: Ying Zhao, Jinhua Dang, Fei Wang
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2020/6574210
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author Ying Zhao
Jinhua Dang
Fei Wang
author_facet Ying Zhao
Jinhua Dang
Fei Wang
author_sort Ying Zhao
collection DOAJ
description Identification of nitrate sources is important for the management of rivers. In this study, stable isotopes (δ15N and δ18O) and a Bayesian model (stable isotope analysis in R, SIAR) were applied to identify nitrate sources and estimate the proportional contributions of multiple nitrate sources in the upstream of Fenhe River Reservoir that serves as a source of drinking water in Shanxi Province of North China. The results showed that the 86.4% of total nitrogen (TN) concentrations in the water samples exceeded the guided values of the Chinese Surface Water Environmental Quality Standard (GB 3838-2002). The influent of tributary and discharges of sewage caused the severe nitrogen pollution. SIAR was used to estimate the proportional contribution of three nitrate sources (sewage, inorganic fertilizer, and soil nitrogen). It was revealed that domestic sewage was the dominant nitrate source, and the contributions were 33%–41%. The contributions of inorganic fertilizer and soil to nitrogen load were 30%–31% and 31%–37%, respectively. Therefore, the pollution sources of nitrogen can be determined more accurately if the rules of sewage discharges are considered.
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spelling doaj-art-e84fa8b69c094428b59324e3be1d920b2025-08-20T03:21:01ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/65742106574210Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable IsotopeYing Zhao0Jinhua Dang1Fei Wang2Shanxi Academy of Environmental Sciences, Taiyuan, Shanxi 030027, ChinaShanxi Academy of Environmental Sciences, Taiyuan, Shanxi 030027, ChinaSchool of Life Science, Shanxi University, Taiyuan, Shanxi 030006, ChinaIdentification of nitrate sources is important for the management of rivers. In this study, stable isotopes (δ15N and δ18O) and a Bayesian model (stable isotope analysis in R, SIAR) were applied to identify nitrate sources and estimate the proportional contributions of multiple nitrate sources in the upstream of Fenhe River Reservoir that serves as a source of drinking water in Shanxi Province of North China. The results showed that the 86.4% of total nitrogen (TN) concentrations in the water samples exceeded the guided values of the Chinese Surface Water Environmental Quality Standard (GB 3838-2002). The influent of tributary and discharges of sewage caused the severe nitrogen pollution. SIAR was used to estimate the proportional contribution of three nitrate sources (sewage, inorganic fertilizer, and soil nitrogen). It was revealed that domestic sewage was the dominant nitrate source, and the contributions were 33%–41%. The contributions of inorganic fertilizer and soil to nitrogen load were 30%–31% and 31%–37%, respectively. Therefore, the pollution sources of nitrogen can be determined more accurately if the rules of sewage discharges are considered.http://dx.doi.org/10.1155/2020/6574210
spellingShingle Ying Zhao
Jinhua Dang
Fei Wang
Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
Journal of Chemistry
title Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
title_full Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
title_fullStr Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
title_full_unstemmed Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
title_short Sources of Nitrogen Pollution in Upstream of Fenhe River Reservoir Based on the Nitrogen and Oxygen Stable Isotope
title_sort sources of nitrogen pollution in upstream of fenhe river reservoir based on the nitrogen and oxygen stable isotope
url http://dx.doi.org/10.1155/2020/6574210
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AT jinhuadang sourcesofnitrogenpollutioninupstreamoffenheriverreservoirbasedonthenitrogenandoxygenstableisotope
AT feiwang sourcesofnitrogenpollutioninupstreamoffenheriverreservoirbasedonthenitrogenandoxygenstableisotope