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http://dx.doi.org/10.5338/KJEA.2011.30.2.144

Removal and Release Velocities of Nutrients by Submerged Plants in Flood Control Reservoirs around Juam Lake  

Han, Jong-Hak (Department of Bio-Environmental Sciences, Sunchon National University)
Seo, Dong-Cheol (Department of Bio-Environmental Sciences, Sunchon National University)
Kim, Sang-Don (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Kang, Se-Won (Department of Bio-Environmental Sciences, Sunchon National University)
Lim, Byung-Jin (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Park, Jong-Hwan (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Kim, Kap-Soon (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Lee, Jun-Bae (Yeongsan River Environmental Research Center, National Institute of Environmental Research Ministry of Environment)
Kim, Hyun-Ook (Division of Environmental Engineering, University of Seoul)
Heo, Jong-Soo (Division of Applied Life Science, Gyeongsang National University)
Cho, Ju-Sik (Department of Bio-Environmental Sciences, Sunchon National University)
Publication Information
Korean Journal of Environmental Agriculture / v.30, no.2, 2011 , pp. 144-152 More about this Journal
Abstract
BACKGROUND: Eutrophication occurs occasionally in flood control reservoirs around Juam lake in summer and early autumn. Lakeside macrophyte which is one of internal pollutants effects on water quality when it is submerged during water surface is rising after rainy season. METHODS AND RESULTS: To improve water the quality of water from water supply source and to establish the management plan of submerged plants in flood control reservoirs around Juam Lake, the removal and release velocities of nutrients by submerged plants in site 1 and 2 were investigated. Removal or release velocity constant (K) of COD by Carex dimorpholepis Steud in column was 0.07~0.18 $day^{-1}$ at 0~4 days after flooding, -0.23~-0.17 $day^{-1}$ at 5~19 days after flooding and -0.28~0.03 $day^{-1}$ at 20~33 days after flooding. Removal or release velocity constant (K) of T-N by Carex dimorpholepis Steud was 0.02 $day^{-1}$ at 0~4(8) days after flooding, -0.13~-0.10 $day^{-1}$ at 5(9)~33 days after flooding in column. Removal or release velocity constant (K) of T-P by Carex dimorpholepis Steud was 0.05~0.06 $day^{-1}$ at 0~4 days after flooding, -0.14~-0.09 $day^{-1}$ at 5~33 days after flooding. Release velocity constant (K) of nutrients by Miscanthus sacchariflorus Benth was lower than that by Carex dimorpholepis Steud. In site 1, the amount of nutrients release by Carex dimorpholepis Steud was 6,719 kg/month/area for COD, 2,397 kg/month/area for T-N and 466 kg/month/area for T-P. The amounts of nutrients release by Carex dimorpholepis Steud were higher than those by Miscanthus sacchariflorus Benth in both sites. CONCLUSION(s): The results of this study suggest that COD, T-N and T-P in water quality of Juam lake were strongly influenced by submerged plants in flood control reservoirs.
Keywords
Flood control reservoir; Nutrient; Release velocity; Removal velocity; Submerged Plant;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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