Evidence on the causes of the rising levels of CODMn along the middle route of the South-to-North Diversion Project in China: The role of algal dissolved organic matter
文献类型：期刊论文
| 作者 | Wang, Chao ; Zhang, Hong; Lei, Pei; Xin, Xiaokang; Zhang, Aijing; Yin, Wei
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2022-03 |
| 卷号 | 113期号:0页码:281-290 |
| ISSN号 | 1001-0742 |
| 关键词 | FLUORESCENCE |
| 英文摘要 | As the biggest inter-basin water transfer scheme in the world, the South-to-North Water Diversion Project (SNWD) was designed to alleviate the water crisis in North China. The main channel of the middle route of the SNWD is of great concern in terms of the drinking water quality. In this study, we tested the hypothesis that the dissolved organic matter (DOM) derived from the planktonic algae causes the rising levels of COD Mn along the middle route by monitoring data on water quality (2015-2019, monthly resolution). The results showed that algal density in the main channel increased along the channel and was significantly correlated with COD Mn ( p < 0.01). Five fluorescent components of DOM, including tyrosine-like (14.85%), tryptophan-like (22.48%), microbial byproduct-like (26.34%), fulvic acid-like (11.41%), and humic acid-like (24.92%) components, were detected. The level of tyrosine-like components increased along the channel and was significantly correlated with algal density ( p < 0.01), indicating that algae significantly changed the level of DOM in the channel. Algal decomposition and metabolism were found to be the main mechanisms that drive the changes in CODMn. Therefore, controlling algal density would be an important measure to prevent further increase in CODMn and for the guarantee of excellent water quality. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47698]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 通讯作者 | Yin, Wei |
| 作者单位 | 1.Changjiang Water Resources Protect Inst, Wuhan 430051, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing 210046, Peoples R China 4.Construct & Adm Bur South North Water Divers Midd, Beijing 100038, Peoples R China 5.Key Lab Ecol Regulat Nonpoint Source Pollut Lake, Wuhan 430051, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chao,Zhang, Hong,Lei, Pei,et al. Evidence on the causes of the rising levels of CODMn along the middle route of the South-to-North Diversion Project in China: The role of algal dissolved organic matter[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,113(0):281-290. |
| APA | Wang, Chao,Zhang, Hong,Lei, Pei,Xin, Xiaokang,Zhang, Aijing,&Yin, Wei.(2022).Evidence on the causes of the rising levels of CODMn along the middle route of the South-to-North Diversion Project in China: The role of algal dissolved organic matter.JOURNAL OF ENVIRONMENTAL SCIENCES,113(0),281-290. |
| MLA | Wang, Chao,et al."Evidence on the causes of the rising levels of CODMn along the middle route of the South-to-North Diversion Project in China: The role of algal dissolved organic matter".JOURNAL OF ENVIRONMENTAL SCIENCES 113.0(2022):281-290. |
入库方式： OAI收割
来源：生态环境研究中心
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