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논문 기본 정보

자료유형
학술저널
저자정보
금동혁 (강원대학교) 류지철 (강원대학교) 강현우 (강원대학교) 장춘화 (강원대학교) 신민환 (강원대학교) 신동석 (국립환경과학원) 최중대 (강원대학교) 임경재 (강원대학교)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제44권 제6호
발행연도
2011.12
수록면
991 - 997 (7page)

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초록· 키워드

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Soil erosion and sediment has been known as one of pollutants causing water quality degradation in water bodies. With global warming issues worldwide, various soil erosion studies have been performed. Although on-site monitoring of sediment loss would be an ideal method to evaluate soil erosion condition, modeling approaches have been utilized to estimate soil erosion and to evaluate various best management practices on soil erosion reduction. Although the USLE has been used in soil erosion estimation for the last 40 years, the USLE model has limitations in estimating event-based soil erosion reflecting rainfall intensity and rainfall duration for long-term period. Thus, the calibrated model, capable of simulating soil erosion using hourly rainfall data, was utilized in this study to evaluate the effects of rainfall amount and rainfall intensity on soil erosion. It was found that USLE soil erosion value is 3.06 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, while soil erosion values from 2006 ~ 2010 were 2.469 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, 0.882 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, 1.489 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, 2.158 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, 1.602 ton ha<SUP>-1</SUP> yr<SUP>-1</SUP>, respectively. Especially, soil erosion from single storm event for 2008-2010 would be responsible for 30% or more of annual soil loss. As shown in this study, hourly soil erosion estimation system would provide more detailed output from the study area. In addition, the effects of rainfall intensity on soil erosion could be evaluated with this system.

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UCI(KEPA) : I410-ECN-0101-2014-521-000793509