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Investigation on Water Quality Variation Characteristics during Dry Season in Namhan River Drainage Basin  

Lee, H.J. (Han-river Environment Research Center)
Kong, D.S. (Han-river Environment Research Center)
Kim, S.H. (National Institute of Environmental Research)
Shin, K.S. (Han-river Environment Research Center)
Park, J.H. (Han-river Environment Research Center)
Kim, B.I. (Han-river Environment Research Center)
Kim, S.M. (Han-river Environment Research Center)
Jang, S.H. (Han-river Environment Research Center)
Cheon, S.U. (Geum-river Environment Research Center)
Publication Information
Journal of Korean Society on Water Environment / v.23, no.6, 2007 , pp. 889-896 More about this Journal
Abstract
From the direct outflow of Chungju Dam to the junction of water body and watershed in Paldang lake is the scope of this research. This study performed to investigate the main cause of water quality deterioration and the influenced region in the middle field range of the Namhan river Basin with the onsite measurement of water quality and flow rate simultaneously during spring dry season. The purpose of this study is to find out the time-spatial variation characteristics of water quality and flow rate. Following the flow direction $BOD_5$ and $COD_{Mn}$ concentration increased to the highest value of 3.7 mg/L, 5.9 mg/L at Wolgesa respectively. Chl.a concentration increased to $50mg/m^3$ or so at Kangsang, after that it decreased to $37mg/m^3$ at the junction of Paldang lake. Organic matter concentration variation trend showed similar than that of Chl.a. Also $BOD_5$ concentration tendency was similar to Chl.a in every measuring sites except Paldang lake mixing zone. The major factors of water quality deterioration in Namhan river and Paldang lake during dry season were algal bloom and followed internal production. High phosphorus load from Dalcheon and Seom river caused dry season algal bloom and internal production in transitional zone which was stagnant area in downstream of Namhan river.
Keywords
Dry season algal bloom and internal production; Namhan-river drainage; Paldang-lake; Water quality variation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 건설교통부, 수운관측메뉴얼 (2004)
2 공동수, 윤일병, 류재근, 이상욱 팔당호 저서성 대형무척추 동물의 군집분석과 현존량의 계절적 동태, 한국육수학회지, 23(1), pp. 43-68 (1990)
3 노형진, 정한열, 개정판 한글 SPSS 기초에서 응용까지, 형설 출판사 (2006)
4 손영목, 송호복, 변화근, 최재석, 팔당호의 어류군집 동태, 한국어류학회지, 9(1), pp. 141-152 (1997)
5 유광일, 임병진, 팔당호에서 동물플랑크톤 군집구조와 생물량의 계절적 천이, 한국육수학회지, 25(2), pp. 89-97 (1992)
6 최용석, 정관모 공저, SAS 를 활용한 다변량 분석 기법과 응용, 자유아카데미 (2003)
7 ISO/DIS 2425. Measurement of Flow in Tidal Channels
8 노형진, Execl 및 SPSS 를 활용한 다변량분석 이론과 실제, 형설출판사 (2005)
9 공동수, 윤일병, 류재근, 팔당호의 물수지 및 수문특성, Korean Journal of Limnology, 29(1), pp. 51-64 (1996)
10 조강현, 김준호, 팔당호 연안대에서 대형 수생식물의 분포, 한국생태학회지, 17(4), pp. 435-442 (1994)
11 Kong, D. S., Limnological and Ecological Characteristics of a River-Reservoir(Paldang), Korea. Special Issue, Korean Journ. Lim., 30-Supplement, pp. 524-535 (1997)
12 환경부, 수질오염공정시험법 (2005)
13 공동수, 팔당호의 육수생태학적 연구, 박사학위논문, 고려대학교 (1992)
14 김종섭, SAS v.8.2를 이용한 통계분석의 이해, 한올출판사 (2003)
15 박혜경, 이현주, 김은경, 정동일, 팔당호 조류발생 특성 및 수질환경인자의 통계적 분석, 한국물환경학회지, 21(6), pp. 584-594 (2005)
16 강현철, 한상태, 김기영, 전명식, 예제로 배우는 SAS 다변량 자료분석 압문, 자유아카데미 (2005)