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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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To measure effects of surface cover on runoff and sediment discharge reduction using rainfall simulator, four(5 m×30 m scale) plot experiments were conducted in this study. Surface covers made with straw mat, Polyacrylamide (PAM), chaff, and sawdust were simulated 4 times under 31.1～44.4 mm/hr rainfall intensities. Compared with results from control plot, the time of runoff generation is delayed and outflow volume decreased with surface cover. Effects on runoff reduction of straw mat, PAM, sawdust and chaff ranged 4.7～81.5 % and runoff rate reduced by 6.5～76.1 % respectively, when compared with those from control plot. The percentage of decrease in sediment discharge were 99.7～99.8 % from straw mat＋sawdust＋PAM plots, 85.9～95.6 % from straw mat＋PAM plots,and 98.5～99.4 % from straw mat＋chaff＋PAM plots. The runoff, sediment discharge, and SS concentration reduction efficiencies of the cover materials were outstanding when compared to control plot. It was analyzed that reduction of runoff and sediment discharge were mainly contributed by decrease in rainfall energy impact and flow velocity and increase of infiltration due to the surface cover materials. The results could be used as a base for the development of best management practices (BMPs) to reduce runoff, sediment discharge from sloping field.
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참고문헌 (21)
참고문헌 신청
Boix-Fayos, C. / 1998 / Spatial and short-term temporal variations in runoff, soil aggregation and other soil properties along a Mediterranean climatological gradient / Caten
Choi J. D / 1998 / Groundwater and Small Stream Water Quality Changes of Rural Watersheds in Kangwon-do / The KSAE 1998 Annual Conference : 558 ~ 564
Entry, J. A. / 2002 / Polyacrylamide preparations for protection of water quality threatened by agricultural runoff contaminants / Environ. Poll 120 : 191 ~ 200
Flanagan, D. C / 1997 / Effect of water chemistry and soil amendments on a silt loam soil-Part I. Infiltration and Runoff / Trans. ASABE 40 : 1549 ~ 1554
Jordan, A / 2010 / Effects of mulching on soil physical properties and runoff under semi-arid conditions in southern Spain / CATENA 81 : 77 ~ 85
Choi J. D / 1998 / Groundwater and Small Stream Water Quality Changes of Rural Watersheds in Kangwon-do / The KSAE 1998 Annual Conference : 558 ~ 564
Entry, J. A. / 2002 / Polyacrylamide preparations for protection of water quality threatened by agricultural runoff contaminants / Environ. Poll 120 : 191 ~ 200
Flanagan, D. C / 1997 / Effect of water chemistry and soil amendments on a silt loam soil-Part I. Infiltration and Runoff / Trans. ASABE 40 : 1549 ~ 1554
Jordan, A / 2010 / Effects of mulching on soil physical properties and runoff under semi-arid conditions in southern Spain / CATENA 81 : 77 ~ 85
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