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http://dx.doi.org/10.7745/KJSSF.2012.45.4.657

Characteristic of Nutrient Release by Submerged Plants under Different Water Temperatures in Lake Reservoir  

Lim, Byung-Jin (Yeongsan River Environmental Research Center)
Lee, Sang-Gyu (Department of Bio-Environmental Sciences, Sunchon National University)
Seo, Dong-Cheol (Department of Bio-Environmental Sciences, Sunchon National University)
Choi, Ik-Won (Department of Bio-Environmental Sciences, Sunchon National University)
Kang, Se-Won (Department of Bio-Environmental Sciences, Sunchon National University)
Seo, Young-Jin (Department of Bio-Environmental Sciences, Sunchon National University)
Lee, Dong-Jin (Yeongsan River Environmental Research Center)
Kim, Sang-Don (Yeongsan River Environmental Research Center)
Heo, Jong-Soo (Division of Applied Life Science (BK21 program) & Institute of Agriculture and Life Science, Gyeongsang National University)
Cho, Ju-Sik (Department of Bio-Environmental Sciences, Sunchon National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.45, no.4, 2012 , pp. 657-663 More about this Journal
Abstract
To evaluate effects of water temperatures on nutrient releases of submerged plants in lake reservoir, COD, T-N and T-P releases of submerged plants were investigated for 60 days under different incubation temperatures ($5^{\circ}C$ and $25^{\circ}C$) in columns. The amounts of COD releases by Carex dimorpholepis were $60.4mg\;L^{-1}$ at $5^{\circ}C$ and $78.0mg\;L^{-1}$ at $25^{\circ}C$. In Miscanthus sacchariflorus, the amounts of COD releases were $62.5mg\;L^{-1}$ at $5^{\circ}C$ and $70.5mg\;L^{-1}$ at $25^{\circ}C$. The amounts of T-N releases in Carex dimorpholepis at $5^{\circ}C$ and $25^{\circ}C$ were 45.8 and $60mg\;L^{-1}$, respectively. In Miscanthus sacchariflorus, the amounts of T-N releases were $55.7mg\;L^{-1}$ at $5^{\circ}C$ and $61.0mg\;L^{-1}$ at $25^{\circ}C$. At $5^{\circ}C$, the amounts of T-P releases in Carex dimorpholepis and Miscanthus sacchariflorus were 5.65 and $7.10mg\;L^{-1}$, respectively. At $25^{\circ}C$, the amounts of T-P releases in Carex dimorpholepis and Miscanthus sacchariflorus were 8.70 and $8.18mg\;L^{-1}$, respectively. In the column experiment, the amounts of COD, T-N and T-P releases by submerged plants at $25^{\circ}C$ were generally higher than those at $5^{\circ}C$.
Keywords
Water temperature; Nurient release; Submerged plant; Carex dimorpholepis; Miscanthus sacchariflorus;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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