New Modeling Framework for Describing the Pollutant Transport and Removal of Ditch-Pond System in an Agricultural Catchment
文献类型：期刊论文
| 作者 | Sun, C.1; Chen, L.1 ; Liu, H. B.2; Zhu, H.3; Lu, M. Q.4; Chen, S. B.1; Wang, Y. W.1; Shen, Z. Y.1
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| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 57期号:12页码:21 |
| 关键词 | ditch-pond system drainage process pollutant removal agricultural nonpoint source pollution |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2021WR031077 |
| 通讯作者 | Chen, L.(chenlei1982bnu@bnu.edu.cn) |
| 英文摘要 | Ditch-pond systems (DPSs) play a key role in hydrologic regulation and pollutant removal in agricultural regions, yet there is a lack of quantitative tools that describe their complex transport and removal processes across spatial scales. To fill this gap, a new modeling framework is proposed by implementing three improvements based on the typical watershed models: (a) the explicit rasterization of natural-artificial drainage, (b) accurate spatial representations of ditches and ponds, and (c) the development of a pollutant-removal module. This framework is exemplified for a DPS-dominated catchment in the Three Gorges Reservoir Region, China. The results revealed that 55.36% of the drainage areas in this catchment were dominated by ditch networks, highlighting the significant impacts of artificial factors. The results simulated by the new framework also indicated the great impacts of specific pond distributions on pollutant removal. In this context, pollutant exports in DPSs were distinctly lower than that in natural situation modeling, about 25.14%-46.65% of pollutants are removed by DPSs. On this basis, the scenario analysis also explored the critical placements of ponds and ditches to optimize pollutant removal and to enhance agricultural management in DPSs. This new framework is available for other real DPS-dominated catchments with potential applications in typical model augmentations and improvements. |
| 资助项目 | National Natural Science Foundation of China[51779010] ; Fund for Innovative Research Group of the National Natural Science Foundation of China[51721093] ; Interdiscipline Research Funds of Beijing Normal University |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000735901700002 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/15024]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Chen, L. |
| 作者单位 | 1.Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Nonpoint Source Pollut Control, Minist Agr, Beijing, Peoples R China 3.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, C.,Chen, L.,Liu, H. B.,et al. New Modeling Framework for Describing the Pollutant Transport and Removal of Ditch-Pond System in an Agricultural Catchment[J]. WATER RESOURCES RESEARCH,2021,57(12):21. |
| APA | Sun, C..,Chen, L..,Liu, H. B..,Zhu, H..,Lu, M. Q..,...&Shen, Z. Y..(2021).New Modeling Framework for Describing the Pollutant Transport and Removal of Ditch-Pond System in an Agricultural Catchment.WATER RESOURCES RESEARCH,57(12),21. |
| MLA | Sun, C.,et al."New Modeling Framework for Describing the Pollutant Transport and Removal of Ditch-Pond System in an Agricultural Catchment".WATER RESOURCES RESEARCH 57.12(2021):21. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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