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Identification of areas vulnerable to soil erosion and risk assessment of phosphorus transport in a typical watershed in the Loess Plateau

文献类型：期刊论文

作者Han, Xiaoxiao3,4; Xiao, Jun1,5; Wang, Lingqing2,3,4; Tian, Shuhan3,4; Liang, Tao2,3,4; Liu, Yujie5
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2021-03-01
卷号758页码:9
ISSN号0048-9697
关键词Soil types Soil erosion Universal soil loss equation Particulate phosphorus transport
DOI10.1016/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.
WOS关键词BASIN ; EUTROPHICATION ; SEDIMENT ; USLE ; LAKE ; PREDICTION ; NITROGEN ; SCALE ; GIS
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
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.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, 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.

入库方式： OAI收割

来源：地理科学与资源研究所

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