Title |
Water Quality and Phytoplankton Distribution Pattern in Upper Inflow Rivers of Lake Paldang |
Authors |
박혜경 ( H. K. Park ) ; 변명섭 ( M. S. Byeon ) ; 김은경 ( E. K. Kim ) ; 이현주 ( H. J. Lee ) ; 전명진 ( M. J. Chun ) ; 정동일 ( D. I. Jung ) |
Keywords |
Lake Paldang; Upper inflow rivers; North-Han river; South-Han river |
Abstract |
The distribution pattern of water quality parameters and phytoplankton biomass in upper inflow rivers of lake Paldang had surveyed. In North-Han river system, nutrient concentrations and algal biomass was below the standard of mesoand oligotrophy from lake Soyang to lake Paldang, maintaining good water quality, except the N5 site located near the Chuncheon-Si, showing high nutrients concentrations and algal biomass. The algal biomass of the South-Han river system showed oligotrophic level in the upstream near the lake Chungju, and increased along the flow direction showing eutrophic level in the downstream within the lake Paldang area. On the other hand, the highest concentrations of nutrients were detected in the middle stream near the Yeoju-Si and Yangpyung-Gun rather than in the downstream suggesting algal biomass in lake Paldang would not come from the upper river area but come from the growth within the lake area using nutrients from the upper inflow river. |