AU - Talebikhiavi, H. AU - Zabihi, M. AU - Mostafazadeh, R. TI - Effects of Land-use Management Scenarios on Soil Erosion Rate using GIS and USLE Model in Yamchi Dam Watershed, Ardabil PT - JOURNAL ARTICLE TA - JSTNAR JN - JSTNAR VO - 21 VI - 2 IP - 2 4099 - http://jstnar.iut.ac.ir/article-1-3117-en.html 4100 - http://jstnar.iut.ac.ir/article-1-3117-en.pdf SO - JSTNAR 2 ABĀ  - Effective soil conservation requires a framework modelling that can evaluate erosion for different land-use scenarios. The USLE model was used to predict the reaction of appropriate land-cover/land-use scenarios in reducing sediment yield at the upland watershed of Yamchi Dam (474 km2), West Ardabil Province, Iran. Beside existing scenario, seven other land-use management scenarios were determined considering pattern of land-use through study area within a GIS-framework. Then, data inputs were prepared using terrain data, land-use map and direct observations. According to the model results, the generated erosion amount was 3.92 t/ha/yr for the current land-use (baseline scenario). For this purpose, conservation practices in dry farming slopes and implementing the scenario 5 (contour farming and remaining crop residuals) can reduce the sediment to 2.02 t/ha/yr. The lowest and highest decreases in sediment yield are projected to be through implementation of scenario 6 (irrigated farming protection with plant residuals) and 7 (biological soil conservation in dry and irrigated farming). The results indicated that, implementing scenario frameworks and evaluating appropriate land-use management scenarios can lead to the reduction of sediment entering the reservoir, and prioritizing soil conservations in the studied area. CP - IRAN IN - 3. Dept. of Natural Resour., Faculty of Agric. and Natural Resour., Univ. of Mohaghegh Ardabili, Ardabil, Iran. LG - eng PB - JSTNAR PG - 221 PT - Research YR - 2017