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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Various Best Management Practices (BMPs) have been suggested to reduce soil erosion and non point source (NPS) pollutant loads from agricultural fields. However, very little research regarding water quality improvement with No-till (NT) has been performed in Korea. Thus, effects of NT were investigated in this study. The objective of the study was to investigate the effect of NT on the surface runoff and sediment discharge in a field. Eight experimental plots of 5×30 m in size and 3 % or 8 % in slope prepared on gravelly sandy loam soil were treated with Conventional-till (CT) and NT.
Runoff and NPS pollution discharge were monitored and compared the treatments. The amounts of rainfall from 13 monitored events ranged from 28.7 mm to 503.5 mm. The runoff amount was reduced by 17.6~59.2 % in 3 % NT and 29.6~53.2 % in 8 % NT. The average NPS pollution loads of the 3 % NT plots and 8 % NT plot were reduced about 45.1~89.2 % and 47.7~98.0 % compared to those of the CT plots, respectively. This research revealed that NT can reduce the NPS pollution loads substantially as well as increase the crop yield. Runoff and NPS pollution loads reduction by NT method could be contribute to improve the water quality of streams in agricultural regions.
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참고문헌 (26)
참고문헌 신청
/ / Rural Development Administration
Armand, C. Bockstaller / 2009 / Runoff generation related to intra-field soil surface characteristics variability application to conservation tillage context / Soil &Till
Dabney, S. M. / 2000 / Management and subsurface effects on runoff and sediment yield from small watersheds / Int. J. Sediment Res 15 : 217 ~ 232
Dabney, S. M. / 2004 / History, residue, and tillageeffects on erosion of loessial soil / American Society of Agricultural Engineers 47 (3) : 767 ~ 775
DeLaune, P. B. / 2012 / Impact of tillage on runoff in long term no-till wheat systems / Journal of Soil & Tillage Research 124 (2012) : 32 ~ 35
Armand, C. Bockstaller / 2009 / Runoff generation related to intra-field soil surface characteristics variability application to conservation tillage context / Soil &Till
Dabney, S. M. / 2000 / Management and subsurface effects on runoff and sediment yield from small watersheds / Int. J. Sediment Res 15 : 217 ~ 232
Dabney, S. M. / 2004 / History, residue, and tillageeffects on erosion of loessial soil / American Society of Agricultural Engineers 47 (3) : 767 ~ 775
DeLaune, P. B. / 2012 / Impact of tillage on runoff in long term no-till wheat systems / Journal of Soil & Tillage Research 124 (2012) : 32 ~ 35
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