Evaluation of Soil Erosion At Imha-Dam Watershed Due to Climate Change Using Sateec.

With climate change in recent years, it has been expected that accelerated soil erosion would increase. Thus proper soil erosion Best Management Practices (BMPs) should be developed. Therefore, effects of climate changes on soil erosion were evaluated for Imha-dam watershed using Climate Change Information Center (CCIC) SRES A1B scenario using USLE/SDR-based SATEEC GIS system. Approximately 37.48 ton/ha/yr of soil erosion in 2020 century (2015-2025), 35.81 ton/ha/yr of soil erosion in 2040 century (2035-2045), 46.94 ton/ha/yr in 2060 century(2055-2065), and 44.11 ton/ha/yr in 2080 century (2075-2085) would be expected.  Average erosion for 4 centuries was 41.09 ton/ha/yr, which is 1.33 times greater than long-term average soil erosion (30.89 ton/ha/yr) value in recent years. As shown in this study, more appropriate Best Management Practices (BMPs) should be developed to meet requirement in case of increased rainfall-runoff and entailing increased soil erosion.