Journal article Open Access
Estimating the impacts of land use and land cover change on runoff and sediment yield using SWAT model: case study of Keleta watershed, Upper Awash Sub-basin
Teka Gemechu
Impacts of land use land cover change on watershed runoff and sediment yield of the Keleta watershed (1150Km2), Upper Awash sub-basin, were assessed using hydrological modeling. The study utilized different types of data including DEM, soil map, Landsat TM and ETM satellite data and the field observations. Two date Landsat image, 1986 and 2005, were used for generating the land use/land cover map of the study area and to detect the changes between these two time periods were simulated by the Soil and Water Assessment Tool (SWAT) model and were compared with measured values. The six main land use changes were identified as an increase of cultivation land from 52.5% to 68% and decrease of forest land 11.8% to 1.7 % of the watershed area during the two decade period. Using the two generated land cover maps, two SWAT models set up were run to evaluate the impacts the land use and cover changes on the stream flow of the study watershed. The performance of the SWAT model was evaluated through sensitivity analysis, calibration, and validation.
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- Publication date:
- January 1, 2014
- DOI:
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- License (for files):
- Creative Commons Attribution