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| Denitrification and Its Role in Cycling and Removal of Nitrogen in River |
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| KeyWord:nitrogen; denitrification; nitrogen gas; nitrous oxide; 15N isotope; N2/Ar ratio; river |
| Author Name | Affiliation | | MA Pei | Henan Institute of Engineering, Zhengzhou 451191, China
Institute of Geographical Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China | | LI Xin-yan | Nanjing Institute of Geography and Limnology, State Key Laboratory for Lake Science and Environments, Chinese Academy of Sciences, Nanjing 210008, China | | WANG Hua-xin | Institute of Geographical Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China | | WANG Jia-ning | Institute of Geographical Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China | | YAN Wei-jin | Institute of Geographical Science and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: |
| Anthropogenic inputs of “new” active nitrogen（N） into the environment have caused water eutrophication, acidification as well as greenhouse gas emission.In this paper, the following issues were reviewed ：when and where did the river denitrification occur? How dids denitrification respond to N concentration and load? What were relationships between river denitrification and water residence time and N load? How did river hydrology and geomorphology influence N losses from the denitrification? What were the characteristics of river denitrification rates at ecosystem scale? In addition, methods for measuring river denitrification were discussed. |
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