Browse > Article

Water Quality Characteristics in Keum River Watershed  

An, Kwang-Guk (School of Bioscience and Biotechnology, Chungnam National University)
Yang, Woo-Mi (School of Bioscience and Biotechnology, Chungnam National University)
Publication Information
Korean Journal of Ecology and Environment / v.40, no.1, 2007 , pp. 110-120 More about this Journal
Abstract
The objective of this study was to analyze temporal trends of water chemistry and spatial heterogeneity for 13 sampling sites of the Keum River watershed using water quality dataset (obtained from the Ministry of Environment, Korea) during $2001{\sim}2005$. The water quality, based on eight physical and chemical parameters, varied largely depending on the years, seasons, and sampling sites. Seasonal and annual means of conductivity, used as a key indicator for a ionic dilution declined during the monsoon season, and nutrients (TN and TP), based on overall mean of all sites, showed marked declines during the monsoon, compared to those of the premonsoon. In the mean time, BOD and COD had no significant relations with a precipitation, in spite of some differences in the sampling sites. In contrast, major input of SS occurred during the period of summer monsoon. and the variation of TN was similar to that of TP. Spatial trend analyses of all parameters, except for DO and temperature, showed that Site 9 acted as a point source, and thus, water quality at the locations of $S9{\sim}S13$ declined abruptedly over 2 fold, compared to locations of $S1{\sim}S8$. Based on the overall dataset, efficient water quality management in the point source tributary streams is required for better water quality of the main Keum River.
Keywords
water quality; dilution; nutrient; Kuem River; pollution;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 김범철, 김윤희. 2004. 아시아 몬순지역의 대형댐(소양호)에서의 인 순환과 2차원모델의 적용, 육수지 37(2): 205-212
2 박성배, 이상균, 장광현, 정광석, 주기재. 2002. 장마기 강우가 낙동강 하류(물금) 수질에 미치는 영향, 육수지 35(3): 160-170
3 유선재, 김종구, 권태연, 이석모. 1999. 금강의 부영양화 현상에 관한 연구, 한국환경과학회지 8(2): 155-160
4 이상득, 이길연, 박정규. 2005. 금강 하구의 수리 및 수질 특성에 관한 연구, 한국환경관리학회지 11(3): 199-208
5 이종태, 이진일, 남윤규, 한규홍. 1999. 금강수계 농업용수의 수질, 한국환경농학회 18(2): 122-125
6 이혜원, 안광국, 박석순. 2002. 소양호 표층수 수질의 연별 추이 및 상, 하류 이질성 분석, 육수지 35(1): 36-44
7 전효택, 문희수, 김규한, 정명채. 1998. 환경지질학. 서울대학교 출판부, p. 529
8 정종배, 김목진, 김정국. 1997. 낙동강 수계 주요 농업지대 소유역이 수질 요염, 한국환경농학회지 16(2): 187-192
9 Moon, Y.H., J.M. Park, J.G. Son and K.H. Kim. 2001. Change in water quality on upper stream of Mankyeong River. Kor. J. Environ. Agric. 20(3): 252-257   과학기술학회마을
10 Winston, W.E. and R.E. Criss. 2002. Geochemical variations during flash flooding, Meramec River basin, May 2000. Journal Hydrology 265: 149-163   DOI   ScienceOn
11 An, K-G. and J.R. Jones. 2000. Temporal and spatial patterns in ionic salinity and suspended solids in a reservoir influenced by the Asian monsoon. Hydrobiologia 436: 179-189   DOI   ScienceOn
12 신재기, 황순지, 조경제. 2003. 평택호와 주요 하천의 수환경 및 오염도 평가, 육수지 36(1): 38-47
13 옥치상, 이주상, 박홍석, 백병천, 이병인. 1999. 수질 및 수자원 관리. 도서출판 대학서림, p. 606
14 An, K-G. and D.S. Kim. 2003. Response oflake water quality to nutrient inputs from various streams and in-lake fishfarms. Water, Air, and Soil Pollution 149(1-4): 27-49   DOI   ScienceOn
15 안광국. 2001. 대형 인공호에서 양이온, 음이온 및 전기전도도의 연변화에 대한 수리수문학적 중요성, 육수지 34(1): 1-8
16 Parks, S.J. and L.A. Baker. 1997. Sources and transport of organic carbon in an Arizona River-Reservoir System. Water Research 31: 1751-1759   DOI   ScienceOn
17 강선아, 안광국. 2006. 영산강 수계의 이화학적 수질에 관한 시공간적 변이 분석, 육수지 39(1): 73-84   과학기술학회마을