Korean Journal of Ecology and Environment (생태와환경)
- Volume 35 Issue 1 Serial No. 97
- /
- Pages.21-27
- /
- 2002
- /
- 2288-1115(pISSN)
- /
- 2288-1123(eISSN)
The Evaluation for Maximum Chl. a Site Observed in the Mid to Lower Nakdong River
낙동강 중${\cdot}$ 하류수역에서 클로로필 a 최대농도 출현지역 평가
- Shin, Sung-Kyo (The Institute for Policy Development, Busan Metropolitan City) ;
- Baek, Kyung-Hoon (The Institute for Policy Development, Busan Metropolitan City) ;
- Song, Mi-Koung (Dept. of Environmental Engineering, Pukyong National University)
- Published : 2002.03.30
Abstract
The frequent occurrence of excessive phytoplankton populations in the downstream Nakdong River has been an important water quality problem in recent years. The limnological survey of the Nakdong River was conducted from January 1997 to December 1999 on once or twice per month. A typical phenomenon of eutrophication appears with the persistent algal bloom due to high nutrients in the mid-lower part of the river. This study showed that the point at which Chl. a concentration reaches maximum was affected by the water temperature and the flow rate. For example, Chl. a concentration reached maximum after around 380, 240 and 120 hours which were estimated from the time of flow at low (
낙동강 중