마산만의 수질변화와 chlorophyll-a의 관계를 밝히고자 이 해역을 대표할 수 있는 4개 정점에서 2010년 2월부터 2010년 11월까지 강우와 기온을 포함한 기후학적 요인, 물리 화학적 요인, 그리고 chlorophyll-a의 변화를 집중 조사하였다. 그 결과, 수온, 염분, SS, 규산염은 정점별 차이를 보이지 않았으며, COD 및 DIN은 마산만 내만으로 갈수록 증가하였다. 시계열적으로는 여름철 집중 강우 시 마산만 지류 하천 및 낙

The monthly water quality data measured at 14 stations located in the Geum-River watershed were clustered into 2 to 7 clusters. Furthermore, factor analyses were conducted on Gabcheon and Yugucheon to characterize the water quality, based on the information obtained from the results of cluster analysis. The results of cluster analysis show that the water quality characteristic of main stream of the Geum-River is somewhat different from that of substream of the Geum-River. Furthermore, the water quality characteristic of Gabcheon which is expected to have the most serious water quality problems in the Geum-River watershed shows the most different water quality characteristic from Yugucheon. Based on the factor loadings in each factor, Gabcheon and Yugucheon have their own water quality characteristics. This is mainly because of composite factors such as different population density, industrial activities, and land use conditions in Gabcheon and Yugucheon subwatersheds.