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Scenario simulation of land exploitation and risk assessment of soil erosion in the low-slope hilly area of the Erhai basin
Jin, Gui1,2,3; Deng, Xiangzheng1; Yuan, Yongwei2; Ma, Sai4; Li, Zhaohua2,3; Shi, Saiya2,3
2017-10-01
Source PublicationPHYSICS AND CHEMISTRY OF THE EARTH
ISSN1474-7065
Volume101Pages:78-85
Corresponding AuthorJin, Gui()
AbstractRisk assessment of soil erosion is an important prerequisite to develop the low-slope hilly in basin-scale. Using Dynamics of Land System model (DLS), we design the scenario simulation of land exploitation of Dali city which is located in the Erhai basin and typical as low-slope hilly area. Then we bring in Universal Soil Loss Equation (USLE) to assess the risks of soil erosion under different scenarios. In two simulating scenarios, baseline scenario and planning scenario respectively, the spatial distribution pattern of land use of the study area in 2020 shows an overall consistency and a partial difference. The cultivated resources of Dali has been protected since the cultivated land located in dam area has not changed, while construction land has expanded more or less on the basis of existing built-up areas. Specifically, the expansion of construction land in planning scenario is concentrated on Haidong town and Fengyi town where there are rich in low-slope hilly resources. In two scenarios mentioned above, both the value-atrisk of soil erosion and its risk level have no significant rise or drop from 2008 to 2020. As the risk index of soil erosion in baseline scenario is 0.003 taller than in planning scenario, one conclusion can be drawn that the planning scenario will lower the overall risk of soil erosion and should be used to develop gentle hillside area in Erhai basin. The risk evaluation of soil erosion under different scenarios is valuable for land management decisions because the results provide fundamental information for optimal utilization of land use and prevention of ecological risks in the low-slope hilly regions. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordErhai basin Low-slope hilly area Scenario simulation Soil erosion risk assessment DLS model USLE model
DOI10.1016/j.pce.2017.01.020
WOS KeywordCHINA ; RAINFALL ; MODEL ; RESPONSES ; USLE
Indexed BySCI
Language英语
Funding Projectmajor research plan of the National Department Public Benefit Research Foundation of the Ministry of Land and Resources of China[201311001-5]
Funding Organizationmajor research plan of the National Department Public Benefit Research Foundation of the Ministry of Land and Resources of China
WOS Research AreaGeology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS IDWOS:000416704100010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/56753
Collection中国科学院地理科学与资源研究所
Corresponding AuthorJin, Gui
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Hubei Univ, Fac Resources & Environm Sci, Wuhan 430062, Hubei, Peoples R China
3.Hubei Key Lab Reg Dev & Environm Response, Wuhan 430062, Hubei, Peoples R China
4.China Univ Geosci, Sch Publ Adm, Wuhan 430074, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Jin, Gui,Deng, Xiangzheng,Yuan, Yongwei,et al. Scenario simulation of land exploitation and risk assessment of soil erosion in the low-slope hilly area of the Erhai basin[J]. PHYSICS AND CHEMISTRY OF THE EARTH,2017,101:78-85.
APA Jin, Gui,Deng, Xiangzheng,Yuan, Yongwei,Ma, Sai,Li, Zhaohua,&Shi, Saiya.(2017).Scenario simulation of land exploitation and risk assessment of soil erosion in the low-slope hilly area of the Erhai basin.PHYSICS AND CHEMISTRY OF THE EARTH,101,78-85.
MLA Jin, Gui,et al."Scenario simulation of land exploitation and risk assessment of soil erosion in the low-slope hilly area of the Erhai basin".PHYSICS AND CHEMISTRY OF THE EARTH 101(2017):78-85.
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