Volume 10, Issue 31 (9-2021)                   DEEJ 2021, 10(31): 59-70 | Back to browse issues page

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Balouei F, Mohammadi S, Soltani kopaei S. Effect of Vegetation and Conservation Factor On Soil Erosion Using RUSLE Model in Doiraj Basin of Ilam Province. DEEJ. 2021; 10 (31) :59-70
URL: http://deej.kashanu.ac.ir/article-1-722-en.html
Changes in land cover and land use effect on natural processes such as soil erosion and sediment production, flooding and soil physical and chemical properties. One of the important impacts of land cover type on processes in watersheds is its role on soil erosion rate. The purpose of this study was to investigate the effect of vegetation changes and conservation factor on soil erosion in Doiraje watershed of Ilam province using GIS and RUSLE model . The results showed that the changes in Landuse/cover  increased the amount of soil loss. Soil conservation scenarios showed that with all factors constant, soil conservation with a correlation coefficient of 0.46% was secondarily important after topography with a correlation coefficient of 0.81% in determining soil erosion. The highest soil erosion under the soil conservation scenario was 2015, with an average of 48.91 ton / ha. Examination of land use / cover change scenarios showed that by keeping all factors constant, soil protection with a correlation coefficient of 0.46% in the second place after topography with a correlation coefficient of 0.81% and vegetation factor in the third degree played an important role in determining the amount of soil erosion. Is. The highest soil loss under the third scenario was in 2015 with an average of 108.94 tons per hectare per year.
Type of Study: Research | Subject: Sciences and Watershed Engineering
Received: 2020/04/22 | Accepted: 2021/02/20 | Published: 2021/10/2

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