Spatial-temporal characteristics of nitrogen degradation in typical Rivers of Taihu Lake Basin, China
文献类型：期刊论文
| 作者 | Guo, Jiaxun; Wang, Lachun; Yang, Long; Deng, Jiancai; Zhao, Gengmao; Guo, Xiya |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2020 |
| 卷号 | 713 |
| 英文摘要 | In this study, we focus on the measurement of different nitrogen (N) forms and investigate the spatial-temporal variability of degradation coefficient in river channels. We aim to provide a new approach of deriving in-situ degradation coefficients of different N forms, and highlight factors that determine the spatial-temporal variability of degradation coefficients. Our results are based on a two-year field survey in 34 channels around the Taihu Lake Basin, eastern China. The derived degradation coefficients of different N forms based our newly-developed experimental device are: degradation coefficients of TN, NH4+ and NO3-N range from 0.006-0.449 d(-1), 0.022-1.175 d(-1) and -0.096-2.402 d(-1), respectively. The degradation coefficients of N show strong dependence on N concentration and water temperature. The seasonal difference of water temperature and N concentration leads to spatial-temporal variability of degradation coefficients. The derived degradation coefficients of N are further verified through one-dimensional water quality model simulations. The degradation coefficient obtained in this study and the influencing factors of its spatial-temporal variability provide invaluable reference for studies in aquatic environment. (C) 2020 Elsevier B.V. All rights reserved. |
| 源URL | [http://159.226.73.51/handle/332005/20176]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Guo, Jiaxun,Wang, Lachun,Yang, Long,et al. Spatial-temporal characteristics of nitrogen degradation in typical Rivers of Taihu Lake Basin, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,713. |
| APA | Guo, Jiaxun,Wang, Lachun,Yang, Long,Deng, Jiancai,Zhao, Gengmao,&Guo, Xiya.(2020).Spatial-temporal characteristics of nitrogen degradation in typical Rivers of Taihu Lake Basin, China.SCIENCE OF THE TOTAL ENVIRONMENT,713. |
| MLA | Guo, Jiaxun,et al."Spatial-temporal characteristics of nitrogen degradation in typical Rivers of Taihu Lake Basin, China".SCIENCE OF THE TOTAL ENVIRONMENT 713(2020). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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