억새 재배지에서의 강우 유출수 수질 특성 분석
Environmental Aspect of Runoff Water from Miscanthus Production Field
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Miscanthus is one of the promising energy crops for producing bioethanol or bioenergy in many countries. A field of about 180ha for miscanthus plantation was started for demonstration near Geum River in 2011. Since the size of the field is much largerthan those of traditional cultivation for one single crop in this country, questions were raised if there are any environmental impactsfrom the energy crop plantation, particularly on water quality. In this study, water quality of runoff water from three different plotswas analyzed for assessing the impacts of energy crop production. The results showed that there were no substantial differences amongthe plots; control, the first, and the second year growth fields. The concentrations of COD, T-N, and T-P were lower than those inrunoff water from agricultural crop fields. The second year field showed a slight higher values of COD and T-N concentrations dueto the biodegradation of residue of miscanthus which was not cultivated for observation. Commercial planation of miscanthus in alarge scale would not result in a water quality problem when avoiding application of fertilizer as practiced in agricultural crop fields.
Abstract
Miscanthus is one of the promising energy crops for producing bioethanol or bioenergy in many countries. A field of about 180ha for miscanthus plantation was started for demonstration near Geum River in 2011. Since the size of the field is much largerthan those of traditional cultivation for one single crop in this country, questions were raised if there are any environmental impactsfrom the energy crop plantation, particularly on water quality. In this study, water quality of runoff water from three different plotswas analyzed for assessing the impacts of energy crop production. The results showed that there were no substantial differences amongthe plots; control, the first, and the second year growth fields. The concentrations of COD, T-N, and T-P were lower than those inrunoff water from agricultural crop fields. The second year field showed a slight higher values of COD and T-N concentrations dueto the biodegradation of residue of miscanthus which was not cultivated for observation. Commercial planation of miscanthus in alarge scale would not result in a water quality problem when avoiding application of fertilizer as practiced in agricultural crop fields.
참고문헌 (12)
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