경작지에서 볏짚거적의 비점오염물질 저감 평가
Evaluation of NPS Pollutant Reduction of Rice Straw Mats in Field
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초록
We have examined the effect of rice straw mat (RSM) on the reduction of non-point source (NPS) pollution loads at soybeancultivations. The slope of the experimental plot was about 3 %. Monitoring was carried out for four years at conventional tillage (CT)in 2008～2009 years and RSM covered tillage in 2010～2011 years. Thirty-two rainfall events were monitored and analyzed duringthe study period. During the 2 years of 2008 and 2009, 20 rainfall runoff events were monitored. But in 2010 years, only 2 rainfallrunoff events could be monitored. And in 2011 years, 10 rainfall runoff events was monitored. It was because the RSM coverenhanced infiltration and reduce runoff in 2010 and 2011. Average NPS pollution load (organic matters) of the RSM covered fieldwas reduced by 72.1～94.2 % compared to that of CT field. NPS pollution load of TN and TP reduced by 67.5 % and 55.7 %,respectively. Especially, SS pollution load was reduced by 97.3 %. Based on the results, rice straw mat cover was considered as apromising best management practices (BMP) to reduce NPS pollution load. However, it was recommended that the results are limitedto the field conditions and the same experiments must be performed on different soil textures, slopes, and crops if it is applied tothe development of policies.
Abstract
We have examined the effect of rice straw mat (RSM) on the reduction of non-point source (NPS) pollution loads at soybeancultivations. The slope of the experimental plot was about 3 %. Monitoring was carried out for four years at conventional tillage (CT)in 2008～2009 years and RSM covered tillage in 2010～2011 years. Thirty-two rainfall events were monitored and analyzed duringthe study period. During the 2 years of 2008 and 2009, 20 rainfall runoff events were monitored. But in 2010 years, only 2 rainfallrunoff events could be monitored. And in 2011 years, 10 rainfall runoff events was monitored. It was because the RSM coverenhanced infiltration and reduce runoff in 2010 and 2011. Average NPS pollution load (organic matters) of the RSM covered fieldwas reduced by 72.1～94.2 % compared to that of CT field. NPS pollution load of TN and TP reduced by 67.5 % and 55.7 %,respectively. Especially, SS pollution load was reduced by 97.3 %. Based on the results, rice straw mat cover was considered as apromising best management practices (BMP) to reduce NPS pollution load. However, it was recommended that the results are limitedto the field conditions and the same experiments must be performed on different soil textures, slopes, and crops if it is applied tothe development of policies.
참고문헌 (26)
- Basic, F., "Runoff and Soil Loss under different Tillage Methods on Stagnic Luvisols in Central Croatia", Soil & Tillage Research, 62, pp.145~151 (2001)
- Benik, S. R., "Evaluation of erosion control products using natural rainfall events", Journal of Soil and Water Conservation, 58(2), pp.98~105 (2003)
- Boardman, J., "Soil erosion on agricultural land" (1990), John Wiley and Sons
- Cerdà, A., "The influence of geomorphological position and vegetation cover on the erosional and hydrological processes on a Mediterranean hillslope", Hydrological Processes, 12(4), pp.661~671 (1998)
- Cerdà, A., "The influence of aspect and vegetation on seasonal changes in erosion under rainfall simulation on a clay soil in Spain", Can. J. Soil Sci, 78, pp.321~330 (1998)
- Choi, J. D., "Effect of Rural Watershed Management on the Discharge of NPS Pollutants to Streams", Inst. of Rural Dev., Kangwon Nat’l Univ, 1(1), pp.91~107 (1997)
- 최용훈, "고랭지 밭 유역에서 융설과 강우유출로 발생하는 비점오염원의 특성 비교", 한국물환경학회지, 28(4), pp.523~530 (2012), 한국물환경학회[DOI]
- Defersha, M. B., "Effect of rainfall intensity, slope and antecedent moisture content on sediment concentration and sediment enrichment ratio", CATENA, 90, pp.47~52 (2012)
- Delaune, P. B., "Impact of tillage on runoff in long term no-till wheat system", Soil & Tillage Research, 124, pp.32~35 (2012)
- Faucette, L. B., "Runoff, erosion, and nutrient losses from compost and mulch blankets under simulated rainfall", Journal of Soil & Water Conservation, 59(4), pp.154~160 (2004)
- Garcia-Orenes, F., "Effects of agricultural management on surface soil properties and soil-water losses in eastern Spain", Soil & Tillage Research, 106, pp.117~123 (2009)
- Giménez-Morera, A., "The impact of cotton geotextiles on soil and water losses from Mediterranean rainfed agricultural land", Land Degradation and Development, 21, pp.210~217 (2010)
- Lal, R., "Soil quality and soil erosion", Water Conservation Society, 329~ (1999)
- Locke, M. A., "Tillage Management to Mitigate Herbicide Loss in Runoff under Simulated Rainfall Conditions", Chemosphere, 70, pp.1422~1428 (2008)
- Nicolau, J. M., "Effects of top soiling on erosion rates and processes in coal-mine spoil banks in Utrillas(Spain)", International Journal of Surface Mining Reclamation & Environment, 10, pp.73~78 (1996)
- Novotny, V., "Water Quality: Prevention, Identification and Management of Diffuse Pollution" (1997), John Wiley & Sons
- Pote, D. H., "Effects of pine straw harvesting on quantity and quality of surface runoff", Journal of Soil and Water Conservation, 59(5), pp.197~203 (2004)
- 신민환, "인공강우기에 의한 시험포장 토양유실량 모의 - 강우강도, 지표면 및 경사조건 변화 -", 한국물환경학회지, 25(5), pp.785~791 (2009), 한국물환경학회
- 신민환, "경사지 밭에서 발생하는 토양유실 저감을 위한 피복재 적용", 한국농공학회논문집, 53(6), pp.129~136 (2011), 한국농공학회
- 신민환, "야채재배 밭에서 지표피복의 비점오염원 저감효과", 한국물환경학회지, 28(3), pp.436~443 (2012), 한국물환경학회[DOI]
- Tiscareno-Lopez, M., "Nitrogen and Organic Matter Losses in NO-Till Corn Cropping Systems", Journal of American Water Resources Association, 40(2), pp.401~408 (2004)
- Result of the National wide Urban Runoff Program, Water Planning Division: Vol. 1 Final Report, "U. S. EPA", ~ (1983)
- 원철희, "산림과 밭 지역 강우 유출수의 EMC 및 원단위 산정", 한국물환경학회지, 25(4), pp.615~623 (2009), 한국물환경학회
- 원철희, "토양유실 저감을 위한 지표피복재 적용", 한국물환경학회지, 27(6), pp.848~854 (2011), 한국물환경학회
- Won, C. H., "Effects of rice straw mats on runoff and sediment discharge in a laboratory rainfall simulation", Geoderma, 189-190, pp.164~169 (2012)
- 원철희, "볏짚거적과 토양개량제를 이용한 강우유출 모의", 한국농공학회논문집, 54(2), pp.95~102 (2012), 한국농공학회[DOI]