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5. Sources of nitrate in rivers under different land-use types in China: A meta-analysis

Author

ZHANG Jinlan, LIN Zuhong, BAI Wenrong, HUAN Zhenglai, ZHANG Tingting, LIN Aijun, and XIAO Yong

Subjects
meta-analysis, Environmental sciences, source, nitrate, Agriculture (General), GE1-350, isotope, land use type, S1-972
Abstract

Nitrate pollution in surface water has attracted global attention. In order to reveal the sources of nitrate in surface water under different land-use types in China, the concentrations of NO3--N, NH4+-N and Cl- and the characteristic values of δ15N-NO3 and δ18O-NO3 in 42 watersheds in dry and wet seasons were collected and evaluated by meta-analysis. Meta-analysis results showed that the concentrations of NO3--N(Response ratio, lnR=0.20) , NH4+-N(lnR=0.54) and Cl-(lnR=0.14) in the dry season were significantly higher than in the wet season(P

Published
2021

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