Impact of land-use and land-cover change on soil erosion using the RUSLE model and the geographic information system: a case of Temeji watershed, Western Ethiopia

Journal of Water and Climate Change - Tập 12 Số 7 - Trang 3404-3420 - 2021
Mitiku Badasa Moisa1, Daniel Assefa Negash2, Biratu Bobo Merga3, Dessalegn Obsi Gemeda4
1Department of Agricultural Engineering, Faculty of Technology, Wollega University Shambu Campus, Shambu, Ethiopia
2Urban Land Administration, Kotebe Metropolitan University, Addis Ababa, Ethiopia
3Department of GIS and Remote Sensing, Institute of Land Administration, Oda Bultum University, Chiro, Ethiopia
4Department of Natural Resources Management, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia

Tóm tắt

Abstract The impact of land-use land-cover (LULC) change on soil resources is getting global attention. Soil erosion is one of the critical environmental problems worldwide with high severity in developing countries. This study integrates the Revised Universal Soil Loss Equation model with a geographic information system to estimate the impacts of LULC conversion on the mean annual soil loss in the Temeji watershed. In this study, LULC change of Temeji watershed was assessed from 2000 to 2020 by using 2000 Landsat ETM+ and 2020 Landsat OLI/TIRS images and classified using supervised maximum likelihood classification algorithms. Results indicate that the majority of the LULC in the study area is vulnerable to soil erosion. High soil loss is observed when grassland and forest land were converted into cultivated land with a mean soil loss of 88.8 and 86.9 t/ha/year in 2020. Results revealed that about 6,608.5 ha (42.8%) and 8,391.8 ha (54.4%) were categorized under severe classes in 2000 and 2020, respectively. Accordingly, the soil loss severity class is directly correlated with the over-exploitation of forest resources and grasslands for agricultural purposes. These results can be useful for advocacy to enhance local people and stakeholder's participation toward soil and water conservation practices.

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Tài liệu tham khảo

10.1016/j.iswcr.2019.10.002

10.1016/j.scitotenv.2020.138776

10.1016/S0167-8809(03)00011-2

10.1186/s40068-019-0149-x

10.1016/j.hydres.2020.07.001

10.1016/j.geoderma.2020.114378

10.1007/s11269-008-9253-9

10.1016/j.landusepol.2020.104682

10.1186/s40068-018-0122-0

10.1080/21513732.2016.1237383

10.1016/j.geoderma.2016.03.016

10.1016/j.biosystemseng.2010.03.006

10.1016/j.iswcr.2016.01.002

10.1016/j.gsf.2015.10.007

10.1186/s40068-016-0078-x

10.1016/j.heliyon.2020.e04777

10.1186/s40066-015-0038-0

10.1016/j.landusepol.2018.01.041

10.1016/j.agee.2020.107047

10.1016/j.scitotenv.2016.09.019

Hurni, 1985, An ecosystem approach to soil conservation, Soil Erosion and Conservation, 759

10.1007/s00254-006-0301-6

10.1016/j.iswcr.2018.02.001

10.1016/j.iswcr.2017.11.002

10.1016/j.catena.2019.01.006

10.1016/j.heliyon.2019.e02981

10.1007/s00254-008-1318-9

10.1007/s11069-013-0830-8

10.3390/su12208531

10.1016/j.envsoft.2021.104962

10.1016/S0341-8162(99)00067-3

10.1016/j.iswcr.2017.02.003

10.1016/j.rsase.2020.100375

10.2136/sssaj1986.03615995005000050042x

10.1186/s40068-020-0163-z

10.1016/j.catena.2020.104725

10.1016/j.geodrs.2017.06.003

Pandey, 2021, Recent advances in assessment of soil erosion vulnerability in a watershed, International Soil and Water Conservation Research, 10.1016/j.iswcr.2021.03.001

Prasannakumar, 2012, Estimation of soil erosion risk within a small mountainous sub-watershed in Kerala, India, using Revised Universal Soil Loss Equation (RUSLE) and geo-information technology, Geoscience, 3, 209

10.1016/j.still.2020.104714

Refahi, 1995, Erodibility assessment of the Alamout sub-catchment and its effect on the sediment yield, Journal of Agricultural Sciences, 26, 48

Renard K. G., Foster G. R., Weesies G. A., McCool D. K., Yoder D. C. 1997 Predicting Soil Erosion by Water: A Guide to Conservation Planning with the Revised Universal Soil Loss Equation (RUSLE). Agriculture Handbook No. 703, USDA-ARS.

10.1016/j.mex.2019.01.004

10.3390/w11020344

10.1007/s10661-010-1423-6

10.1016/j.iswcr.2020.12.002

10.1016/j.iswcr.2017.05.004

10.1016/j.jseaes.2005.06.002

10.1016/j.iswcr.2016.02.006

Wischmeier, 1978, Predicting Rainfall Erosion Losses: A Guide to Conservation Planning, 34

10.3390/land9040111

10.1186/s40068-019-0145-1

10.1016/j.geodrs.2018.01.002

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Thông tin xuất bản

Journal of Water and Climate Change

Tập 12 Số 7

3404-3420

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