지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Soil erosion and sediment from agricultural farmland has caused various negative impacts on environment in recent years. The effect of rice straw mat on soil erosion has been investigated by many researchers these days. In this study, the SWAT model was applied to Hongcheon watershed to evaluate SWAT flow and sediment, and the effect of rice straw mat on sediment yield at watershed outlet was evaluated. The Nash-Sutcliffe model efficiency (NSE) and coefficient of determination (R2) values for flow simulation (calibration period) were 0.66 and 0.67, and the NSE values for sediment was 0.90. The calibrated parameters were used to analyze the reduction of sediment yield in the farmland with rice straw mat. Average daily sediment yield without rice straw mat was 49.8 ton/day and sediment yield with rice straw mat was 25.5 ton/day, and the reduction rate was 38.7 %. Also, average daily sediment yield with/without rice straw mat were 97.5 ton/day and 190.7 ton/day during the rainy season (Jun. 2008 - Aug. 2009),with the reduction rate 46.3 %.
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참고문헌 (25)
참고문헌 신청
/ / National Resources Conservation Service (NRCS)
/ / WAter Management Information System (WAMIS)
/ / Water Information System
Arnold, J. G. / 1992 / Spatial scale variability in model development and parameterization / 박사 / Purdue University
Arnold, J. G. / 1998 / Large area hydrologic modeling and assessment: part I: model development / Journal of American Water REsources Association 34 (1) : 73 ~ 89
/ / WAter Management Information System (WAMIS)
/ / Water Information System
Arnold, J. G. / 1992 / Spatial scale variability in model development and parameterization / 박사 / Purdue University
Arnold, J. G. / 1998 / Large area hydrologic modeling and assessment: part I: model development / Journal of American Water REsources Association 34 (1) : 73 ~ 89
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