| Title |
Seasonal Water Quality Analysis in Daecheong Lake by Eutrophication Assessment Methods |
| Authors |
김응석 ( Eung Seok Kim ) ; 심규범 ( Kuy Bum Sim ) ; 양상용 ( Sang Yong Yang ) ; 윤조희 ( Jo Hee Yoon ) ; 갈병석 ( Byung Seok Kal ) ; 손인욱 ( In Ook Son ) ; 최현일 ( Hyun Il Choi ) |
| Keywords |
Eutrophication; LTSI; Mesotrophic; TSI; TSIm; TSI(KO) |
| Abstract |
This study has evaluated the trophic state in Daecheong Lake by Carlson (1977) method, Aizaki (1981) method, Yang and dickman (1993) method, and Korean trophic state index method. For estimating the trophic state index from each analysis method we use water quality factors such as COD, TN, TP, Chl-a, and SD provided by the water information system and the ministry of environment. The seasonal lake trophic state results denote the mesotrophic state lake from Carlson (1977) method, Aizaki (1981) method, and Korean trophic state index method and the high relation between Carlson (1977) method and Aizaki (1981) method with the coefficient of determination R2 greater than 0.9 for all the seasons. Although Korean trophic index method has relatively weak relation to other methods with the coefficient of determination R2 ranging from 0.419 to 0.701, we propose that Korean trophic index method is suitable for use in domestic lakes since Korean trophic index results show the similar periodicity and tendency with other method results. Hence, Korean trophic index method incorporating domestic lake characteristics is expected to can contribute to seasonal water quality management measures in lakes. |