| Title |
The Trophic State of Lake Pladang |
| Authors |
김범철 ; 김동섭 ; 권오길 ( Bom Chul Kim ; Dong Sup Kim ; Oh Kil Kwon ) |
| Abstract |
Trophic states were surveyed in a reservoir on the Han River, Lake Paldang, receiving waters from two rivers, the North Han River and South Han River. Chlorophyll a concentration, secchi disc transparency, BOD, soluble reactive phosphorus (SRP) concentration and total phosphorus (TP) concentration were investigated at three stations (dam site and the inlet region of the North Han River and the inlet region of the South Han River) and the phosphorus loading into Lake Paldang was measured. Chlorophyll a, BOD, SRP and TP were highest at the inlet region of the South Han River and lowest at the inlet region of the North Han River and transparency showed the opposite trend. Trophic states of Lake Paldang can be classified as mesotrophic level at the dam site and the inlet region of the North Han River and eutrophic level at the inlet region of the South Han River. The phosphorus loading into Lake Paldang was between the dangerous critical loading and the permissible critical loading of Vollenweider-DECD critical loading model. The phosphorus loading of the South Han River was about 2 times larger than of the North Han River. |