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NTIS 바로가기한국하천호수학회지= Korean journal of limnology, v.45 no.1, 2012년, pp.21 - 33
조용철 (상지대학교 환경공학과) , 신윤근 (상지대학교 환경공학과)
Survey on the phytoplankton community structure and distribution in the upstream watershed of the East River was carried out during the period from May, 2008 to April, 2009. A total composition of phytoplankton included 159 taxa, consisting of 7 orders, 56 genera, 139 species, and 40 unidenfied spec...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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남한강 상류 유역의 특징은? | 산림벌채 이후 고랭지 채소를 경작하고 목축을 위한 초지를 조성하며 스키장 등의 위락시설들이 생겨난 이후 계류의 수질이 악화되는 일들이 생겨나고 있다. 본 연구 대상지인 남한강 상류 유역은 강원도 강릉시, 정선군, 평창군, 영월군의 산림지대를 흐르는 계류성 하천으로 하천 수변지형이 화려하고 주변의 산세가 험하며 하천유역은 높은 절벽으로 이루어진 곳이 많아 유속이 비교적 빠른 전형적인 상류 산간 수계의 모습을 나타내고 있다. 하지만 연구대상의 상류 지역인 송천에 존재하고 있는 도암호의 부영영화 (Kim et al. | |
식물플랑크톤이 하천 오염 지표종으로 다뤄지는 이유는? | , 2002). 식물플랑크톤은 수계생태계의 중요한 구성원이자 1차생산자로서 먹이연쇄의 기반을 형성하여 생태계 내 에너지 순환에서 매우 중요하며, 이들은 주변환경의 물리, 화학적 변화에 민감하게 반응하는 특성을 가지고 있어 환경오염의 지표성이 뛰어나기 때문에 하천의 오염지표종으로 중요하게 다루어지고 있다(Watanabe, 1962; Palmer, 1977; Hellawell, 1986). | |
남대천의 오염을 일으킨 도암호의 부영양화의 원인은? | 이로 인해 도암댐은 유역 변경식으로 가동되다가 남대천의 오염이 심각해지자 발전을 멈추고 단순히 하류로 호수물을 방류하고 있다. 도암호에서 방류하는 물에 미세한 입자들을 많이 포함하여 탁수 문제가 발생해 2005년 한수원에서 도암댐 문제 해결을 위한 연구를 수행한 적이 있는데 도암호의 부영양화 원인은 상류에 존재하고 있는 고랭지 농지, 목장 등과 스키장, 골프장, 콘도 등의 위락시설 등에서 나오는 오염물질들이 원인인 것으로 판단된다(Lee et al., 2006). |
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