Transformation and source identification of N in the upper reaches of the Han River basin, China: evaluated by a stable isotope approach
文献类型：期刊论文
| 作者 | Yuan, Jie2; Zhao, Binjie1,3; Zhang, Quanfa1 |
| 刊名 | ENVIRONMENTAL MONITORING AND ASSESSMENT
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 191期号:7页码:13 |
| 关键词 | Nitrogen pollution Seasonal variation Nitrogen sources Nitrification Denitrification |
| ISSN号 | 0167-6369 |
| DOI | 10.1007/s10661-019-7603-0 |
| 英文摘要 | Given the spatial and temporal variability in hydrological conditions and nitrogen (N) processes, it is of great uncertainty to identify the N sources and evaluate N transformation processes in the upper Han River. Investigations were conducted in November 2015 and January, April, and July 2016, using an isotopic method and water quality monitoring. The significant and positive correlation between NO3- concentrations and Cl- (p < 0.01) in most sampling months suggested that the great influence of human activities and sewage or manure was the dominant NO3- source. The delta(NO3-)-N-15 values and NO3-/Cl- variations indicated that riverine N mainly came from soil organic N and sewage in November. Fertilizer and sewage were the major N sources in January and April, respectively. In July, water was influenced by various N inputs. The nitrification process played an important role in the low delta(NO3-)-N-15 values in January, while both nitrification and plant uptake resulted in the increase in delta(NH4+)-N-15 values in April. The simultaneous effect of N fixation and plant uptake maintained the stabilization of delta(NH4+)-N-15 concentrations. Our study provides theoretical basis on N sources and transformations for controlling N pollution and improving water quality in the upper Han River in the near future. |
| 资助项目 | National Natural Science Foundation of China[31570463] ; National Natural Science Foundation of China[31720103905] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000473172300006 |
| 出版者 | SPRINGER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/8220]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Zhang, Quanfa |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China 3.Univ Chinese Acad Sci, Beijing 1004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Jie,Zhao, Binjie,Zhang, Quanfa. Transformation and source identification of N in the upper reaches of the Han River basin, China: evaluated by a stable isotope approach[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2019,191(7):13. |
| APA | Yuan, Jie,Zhao, Binjie,&Zhang, Quanfa.(2019).Transformation and source identification of N in the upper reaches of the Han River basin, China: evaluated by a stable isotope approach.ENVIRONMENTAL MONITORING AND ASSESSMENT,191(7),13. |
| MLA | Yuan, Jie,et al."Transformation and source identification of N in the upper reaches of the Han River basin, China: evaluated by a stable isotope approach".ENVIRONMENTAL MONITORING AND ASSESSMENT 191.7(2019):13. |
入库方式： OAI收割
来源：武汉植物园
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