Identification of areas vulnerable to soil erosion and risk assessment of phosphorus transport in a typical watershed in the Loess Plateau | |
Han, Xiaoxiao1,2; Xiao, Jun4,5; Wang, Lingqing1,2,3; Tian, Shuhan1,2; Liang, Tao1,2,3; Liu, Yujie5 | |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
2021-03-01 | |
卷号 | 758页码:9 |
关键词 | Soil types Soil erosion Universal soil loss equation Particulate phosphorus transport |
ISSN号 | 0048-9697 |
DOI | 10.1016/j.scitotenv.2020.143661 |
通讯作者 | Wang, Lingqing(wanglq@igsnrr.ac.cn) |
英文摘要 | Soil erosion is an increasingly serious eco-environmental problem and an important driver of phosphorus loss, which not only reduces soil productivity but also decreases water availability. The integration of the universal soil loss equation (USLE) and the geographic information system (GIS) technique is globally popular for erosion prediction and assessment. The Fen River basin is located in the east of the Loess Plateau and has eco-environmental problems of soil erosion and eutrophication because of excess phosphorus content. This study attempted to use the USLE model to evaluate soil erosion and the transport of the resulting particulate phosphorus in the Fen River basin under a GIS framework. The results showed that soil erosion in 15.8% of the study area exceeded 8000 t/(km(2).a) and was mainly distributed in the upper Fen River basin. Soil erosion was greatest in the bareland area, with an average of approximately 1.22 x 10(4) t/(km(2).a), followed by that in grassland. Soil erosion in the study area is most sensitive to the rainfall erodibility (R), followed by the soil erodibility (K), topographic factors including slope steepness (S) and slope length (L), the soil and water conservation factor (P), and the vegetation cover and management factor (C). Similar to soil erosion, the high-risk areas of particulate phosphorus transport were mainly concentrated in the upper reaches of the basin. The study also pointed out that the combined use of available data sources with the USLEmodel and GIS technique is a viable option to calculate soil erosion and assess the risk of particulate phosphorus transport, which could provide a scientific basis for reducing soil erosion and controlling phosphorus migration. (C) 2020 Elsevier B.V. All rights reserved. |
资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDB40020200] ; Shaanxi Science Fund for Distinguished Young Scholars[2020JC-030] ; Cultivation Projects of SKLLQG[SKLLQGPY1803] ; CAS Light of West China program[XAB2018A02] |
WOS关键词 | BASIN ; EUTROPHICATION ; SEDIMENT ; USLE ; LAKE ; PREDICTION ; NITROGEN ; SCALE ; GIS |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000605623800071 |
资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; Shaanxi Science Fund for Distinguished Young Scholars ; Cultivation Projects of SKLLQG ; CAS Light of West China program |
内容类型 | 期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/136838] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Wang, Lingqing |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China |
推荐引用方式 GB/T 7714 | Han, Xiaoxiao,Xiao, Jun,Wang, Lingqing,et al. Identification of areas vulnerable to soil erosion and risk assessment of phosphorus transport in a typical watershed in the Loess Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,758:9. |
APA | Han, Xiaoxiao,Xiao, Jun,Wang, Lingqing,Tian, Shuhan,Liang, Tao,&Liu, Yujie.(2021).Identification of areas vulnerable to soil erosion and risk assessment of phosphorus transport in a typical watershed in the Loess Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,758,9. |
MLA | Han, Xiaoxiao,et al."Identification of areas vulnerable to soil erosion and risk assessment of phosphorus transport in a typical watershed in the Loess Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 758(2021):9. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论