Improving the accuracy of nonpoint-source pollution estimates in inland waters with coupled satellite-UAV data
文献类型：期刊论文
| 作者 | Zhao, Changsen1,4,5,6; Li, Maomao1; Wang, Xuelian2; Liu, Bo2; Pan, Xu1; Fang, Haiyan3 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2022-10-15 |
| 卷号 | 225页码:15 |
| 关键词 | Nonpoint-source pollution modeling Water quality Hydrology Unmanned aerial vehicle Satellite Miyun reservoir |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2022.119208 |
| 通讯作者 | Zhao, Changsen(hzjohnson2003@163.com) |
| 英文摘要 | Quantitatively and accurately analyzing nonpoint-source (NPS) pollution is essential for efficiently preventing the input of NPS loads into inland waters. However, the accuracy of previous NPS pollution models is limited by the accuracy of ground parameter data. In addition, there are few effective methods that thoroughly verify modeling results at large scales. This paper presents a framework for accurate NPS pollution estimation by coupling satellite and unmanned aerial vehicle (UAV) monitoring data, and the results are verified by both field sampling and a newly developed inlet NPS pollution "observation" simulation method. Fractional vegetation coverage (FVC) data obtained by satellite were used to improve the accuracy of the runoff module of the framework. Satellite and UAV data were coupled to acquire livestock data, determine inlets, and identify reservoir buffer zones and vegetation types. These new data were then used to improve the accuracy of the livestock and runoff modules in the framework. The results show that the estimation accuracy of total nitrogen, total phosphorus, ammonia nitrogen, and chemical oxygen demand with FVC were improved by 39.96%, 69.29%, 54.05% and 47.22% (in relative error), respectively. The high-resolution livestock data acquisition improved the estimation accuracy of the NPS pollution load by 7-53%. The high-resolution inlet extraction improved the accuracy by 3-24%. The high-resolution buffer zone identification improved the accuracy with the estimated NPS pollutant concentration into reservoir decreasing by 60-99%. Finally, the high-resolution vege-tation type identification improved the accuracy by 10-72%. The framework performs satisfactorily, which was verified based on the simulated NPS observations with an average relative error of 11.54-24.31%. We found that the FVC, livestock number, and inlet number are key parameters for NPS pollution modeling; the introduction of monthly variation in the FVC makes the modeled NPS pollution load much higher in areas with mature complex forested ecosystems or densely distributed vegetation but much lower in areas with sparsely distributed vege-tation. The above methods provide a scientific reference for high-efficiency NPS pollution prevention in inland waters, laying a solid basis for decision-making regarding water quality management in data-scarce regions around the world. |
| WOS关键词 | CRITICAL SOURCE AREAS ; MANAGEMENT-PRACTICES ; LAND-USE ; MODEL ; SWAT ; PHOSPHORUS ; NITROGEN ; UNCERTAINTY ; RIVER |
| 资助项目 | Beijing Hydrological Center ; Beijing Normal University ; National Key Project for RD[2021YFC3201103] ; National Natural Science Foundation of China[52279004] ; National Natural Science Foundation of China[U1812401] ; Beijing Natural Science Foundation[8202045] ; Beijing Advanced Innovation Program for Land Surface Science ; 111 Project[B18006] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000868492800002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Beijing Hydrological Center ; Beijing Normal University ; National Key Project for RD ; National Natural Science Foundation of China ; Beijing Natural Science Foundation ; Beijing Advanced Innovation Program for Land Surface Science ; 111 Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/185879]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Changsen |
| 作者单位 | 1.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 2.Beijing Hydrol Ctr, Beijing 100089, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.ICube, UdS, CNRS, UMR 7357, 300 Bld Sebastien Brant,CS 10413, F-67412 Illkirch Graffenstaden, France 5.Univ Saskatchewan, Sch Environm & Sustainabil, Saskatoon, SK S7N 5C9, Canada 6.Beijing Normal Univ, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Changsen,Li, Maomao,Wang, Xuelian,et al. Improving the accuracy of nonpoint-source pollution estimates in inland waters with coupled satellite-UAV data[J]. WATER RESEARCH,2022,225:15. |
| APA | Zhao, Changsen,Li, Maomao,Wang, Xuelian,Liu, Bo,Pan, Xu,&Fang, Haiyan.(2022).Improving the accuracy of nonpoint-source pollution estimates in inland waters with coupled satellite-UAV data.WATER RESEARCH,225,15. |
| MLA | Zhao, Changsen,et al."Improving the accuracy of nonpoint-source pollution estimates in inland waters with coupled satellite-UAV data".WATER RESEARCH 225(2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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