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Monitoring of Nitrogen and Phosphorus from Submerged Plants in Boknae Reservoir around Juam Lake
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 Title & Authors
Monitoring of Nitrogen and Phosphorus from Submerged Plants in Boknae Reservoir around Juam Lake
Kang, Se-Won; Seo, Dong-Cheol; Lee, Sang-Gyu; Seo, Young-Jin; Park, Ju-Wang; Choi, Ik-Won; Park, Jong-Hwan; Lim, Byung-Jin; Heo, Jong-Soo; Cho, Ju-Sik;
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 Abstract
BACKGROUND: Eutrophication occurs occasionally in reservoirs around lake in summer and early autumn. Lakeside macrophyte which is one of internal pollutants effects on water quality when it is submerged during rainy season. To improve water quality of water supply source in Boknae reservoir around Juam lake, characteristics of nutrient(N, P) uptake and release by submerged plants were investigated. METHODS AND RESULTS: In order to establish the management plan of submerged plants in Boknae reservoir around Juam lake, water level, rainfall, flooding and non-flooding areas, biomass of dominant plants, contents of nitrogen and phosphorus were investigated during 7 months(August, 2010 through February, 2011). Dominant plants were Miscanthus sacchariflorus(MISSA) and Carex dimorpholepis(CRXDM) in Boknae reservoir. Total plant area of Boknae reservoir in August, 2010 was 987,872 . In Boknae reservoir, flooding occurred from August until February caused by rainfall during rainy season. The total amounts of nitrogen and phosphorus uptakes by MISSA were 247 and 22 kg/total reservoir area, respectively. By CRXDM, the total amounts of nitrogen and phosphorus uptakes were 11,340 and 1,231 kg/total reservoir area, respectively. The total amounts of nitrogen and phosphorus residues by MISSA were 34 and 11 kg/total reservoir area, respectively. By CRXDM, the total amounts of nitrogen and phosphorus residues were 491 and 68 kg/total reservoir area, respectively. CONCLUSION(S): Total amounts of nitrogen and phosphorus releases in Boknae reservoir were 12,212 and 1,324 kg/total reservoir area, respectively. The results demonstrate that total nitrogen and total phosphorus in water were strongly influenced by submerged plants. Therefore, management plan for submerged plants during rainy season will be needed to improve water quality of water supply source in Boknae reservoir around Juam lake.
 Keywords
Boknae reservoir;Juam lake;Release;Submerged plants;Uptake;
 Language
Korean
 Cited by
1.
논 생태계 내 둠벙의 저서성 대형무척추동물 군집구조 특성,최락중;한민수;김미란;조광진;강기경;나영은;김명현;

한국환경농학회지, 2013. vol.32. 4, pp.304-314 crossref(new window)
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Characteristics Communities Structure of Benthic Macroinvertebrates at Irrigation Ponds, within Paddy Field, Korean Journal of Environmental Agriculture, 2013, 32, 4, 304  crossref(new windwow)
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