논문 상세보기
pp.309-318
This study was conducted for determining the influence of artificial structures on benthic macroinvertebrate communities in stream. Sampling was taken at upper(pool), down(riffle) and control(riffle) from two check dams, two weirs, one agricultural reservoir, and one multipurpose dam in northern part of Gyeongsangbuk-do. The benthic macroinvertebrate communities of these structures were surveyed during 2009 to 2011. The simple habitat of benthic macroinvertebrates occurred at the upper sites due to pooling effects from artificial structures. Specifically, Check dam1, Jusanji, Imha dam showed very low biological attribute values compared to the down and control sites, which have greater difference in substrate characteristics. However, in the upper sites of Check dam2, Weir1 and Weir2, the difference of values of biological attributes was relatively smaller. Also, proportion of functional feeding groups and functional habit groups were relatively simpler at upper stream and the degree of community differences was greater between upper and down, control sites. Spearman’s correlation between biological attributes and substrate characteristics, water quality parameters had significant correlations; particularly, the substrate characteristics were more significantly related. In conclusion, the pool caused by artificial structures had negative effects on benthic macroinvertebrate communities thus leading to simplified stream habitats at upper stream ecosystems.
1. 서 론
2. 재료 및 방법
2.1. 조사지점 및 조사시기
2.2. 환경 및 수질요인 분석
2.3. 채집 및 동정
2.4. 자료분석
3. 결과 및 고찰
3.1. 환경분석
3.2. 군집구조
3.3. 섭식기능군 및 서식기능군
3.4. 군집지수 및 군집 안정성
3.5. 생물학적 수질평가 및 상관분석
4. 결 론
참 고 문 헌
