Identifying the risk of urban nonpoint source pollution using an index model based on impervious-pervious spatial pattern
文献类型：期刊论文
| 作者 | Liao, Yunjie; Zhao, Hongtao ; Jiang, Zhihui; Li, Jia; Li, Xuyong
|
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2021-03-15 |
| 卷号 | 288页码:- |
| 关键词 | Urban nonpoint source Hotspot Decision-making Impervious-pervious spatial pattern Sink source transformation |
| ISSN号 | 0959-6526 |
| 英文摘要 | Efficiently evaluating the risk of urban non-point source pollution (urban-NPS) using only a few parameters is crucial to its management and control, especially in engineering. However, the huge spatial heterogeneity of urban-NPS induced by the high spatial heterogeneity in land use, surface infiltration and surface micro-topography, make it difficult. A new index model composed of transport and source factors was proposed to evaluate the urban-NPS risk. An urban catchment in southern China served to demonstrate the proposed method. The ability of runoff output was characterized by the transport factor in which the impervious-pervious surface spatial pattern, imperviousness ratio and rainfall were taken into account. The pollutants output capacity was represented by source factor where the imperviousness ratio and source-sink transformation resulting from rainfall were considered. Results show the proposed index can identify and evaluate the risk of urban-NPS at both urban parcel scale and catchment scale. The percent bias (PBIAS) of runoff volume helped to assess the performance of the index. PBIAS (1-86%) between the proposed method and the observed runoff was much lower than that (27-448%) between the traditional runoff coefficient method and the observed runoff. These suggest that the proposed index offers a new way of assessing urban-NPS risk. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45484]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Yunjie,Zhao, Hongtao,Jiang, Zhihui,et al. Identifying the risk of urban nonpoint source pollution using an index model based on impervious-pervious spatial pattern[J]. JOURNAL OF CLEANER PRODUCTION,2021,288:-. |
| APA | Liao, Yunjie,Zhao, Hongtao,Jiang, Zhihui,Li, Jia,&Li, Xuyong.(2021).Identifying the risk of urban nonpoint source pollution using an index model based on impervious-pervious spatial pattern.JOURNAL OF CLEANER PRODUCTION,288,-. |
| MLA | Liao, Yunjie,et al."Identifying the risk of urban nonpoint source pollution using an index model based on impervious-pervious spatial pattern".JOURNAL OF CLEANER PRODUCTION 288(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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