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http://dx.doi.org/10.5338/KJEA.2003.22.2.153

Assessment of Water Purification Plant Vegetation for Enhancement of Natural Purification in Mankyeong River  

Lee, Kyeong-Bo (National Honam Agricultural Exp. Station, RDA)
Kim, Chang-Hwan (Department of Forest Landscape Architecture, Iksan National College)
Kim, Jong-Gu (National Honam Agricultural Exp. Station, RDA)
Lee, Deog-Bae (National Honam Agricultural Exp. Station, RDA)
Park, Chan-Won (National Honam Agricultural Exp. Station, RDA)
Na, Seoung-Yong (National Honam Agricultural Exp. Station, RDA)
Publication Information
Korean Journal of Environmental Agriculture / v.22, no.2, 2003 , pp. 153-165 More about this Journal
Abstract
This study was conducted to get some information on plants abilities to enhance water purification and to find out away to conserve the ecosystem in Mankyeong river. Vegetation were surveyed at 4 sites pointing by 1:5,000 topographical map, from June 2001 through March 2002. T-N content in water were high in all sites of Mankyeong river, the average T-N levels were 8.59 and 17.23 mg/L, summer and winter, respectively. The average T-P level during summer was 0.47 mg/L but that was 1.79 mg/L during winter. The BOD level in Mankyeong upstream ranged from 0.95 to 2.57 mg/L which would be in I or II grade according to water quality criteria by Ministry of Environment but BOD level in Mankyeong downstream ranged from 6.87 to 9.72 mg/L. The plant species of river flora were found 251, 98 and 85, upstream midstream and down stream, respectively. Among the surveyed plants, Ceratophyllum demersum, submerged plant and Nuphar subinteperrimum took up higher contents of phosphate and nitrogen than other piano. The Phragmites communis and Zizania latifolia having much biomass were thought to be suitable plants for enhancement of e natural water purification.
Keywords
Mankyeong river; water quality; vegetation; natural purification;
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