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GIS Based Soil Erosion Estimation Using EPM Method, Garmiyan Area, Kurdistan Region, Iraq
Department of Geology, School of Science, Faculty of Science and Science Education, University of Sulaimaniyah.
Department of Geography, College of Education, University of Tikrit.
Department of Geography, Faculty of Education/Kalar, University of Garmian.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-6790-2653
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2016 (engelsk)Inngår i: Journal of Civil Engineering and Architecture, ISSN 1934-7359, E-ISSN 1934-7367, Vol. 10, s. 291-308Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Using empirical model is one of the approaches of evaluating sediment yield. This research is aimed at predicting erosion and sedimentation in Garmiyan area at Kurdistan Region, Iraq used EPM (erosion potential model) incorporating into GIS (geographic information system) software. This basin area is about 1,620 km2. It has a range of vegetation, slope, geological, soil texture and land use types. The spatial distribution of gully erosion shows three main zones in the studied area (slight to moderate gully, high gully and sever fluvial erosion). They form about 10%, 89% and 1% of gully erosion in the studied area respectively. The results of the EPM model show that the values of the coefficient of erosion Z are classified as moderate to high erosion intensity. They increase northward due to increasing of slope, elevation and rate of precipitation that generate Hortonian overland flow, which is due to high discharge and huge fluvial erosion power that cause ground surface erosion to produce large quantity of sediment. The results of GSP (spatial sediment rate) are increasing northward similar to Z due the same reasons, while the value of total sediment rate, shows different values for each watershed because they are mainly affected by the total watershed area.

sted, utgiver, år, opplag, sider
2016. Vol. 10, s. 291-308
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URN: urn:nbn:se:ltu:diva-15425DOI: 10.17265/1934-7359/2016.03.004Lokal ID: eee1d6e7-5f02-44f3-bb1c-6129286cebf3OAI: oai:DiVA.org:ltu-15425DiVA, id: diva2:988399
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Validerad; 2016; Nivå 1; 20160329 (nadhir)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2017-11-24bibliografisk kontrollert

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