도시하천의 환경특성과 친자연적 계획전략- 춘천시 공지천을 대상으로 -

초록

This study analyzed characteristics of natural and human environments in Chuncheon's Gongji stream, and suggested nature-friendly planning strategies for self-purification of water quality, biodiversity improvement and conservative waterfront recreation. The environmental analysis included streambed structures, floodplain soils, water quality, vegetation, wildlife, and human facilities.Natural colonization of vegetation for the middle section of the study stream was obstructed by a straightened concrete revetment of baseflow channel, and vehicle movement and concrete parking lots across the floodplain. These human disturbances also deteriorated the naturalness of the stream landscape and limited habitation of bird species. However, natural sedimented wetlands in half of the channel width for the lower section of the stream contributed to a desirable vegetational landscape and greater bird occurrence. Based on BOD measurements, water quality of the stream fell under class II~III of the stream water-quality standard, but it was worse around sewage outlets due to incomplete sewage collection, especially during the dry season. Dominant fish species included typical inhabitants of good water-quality streams that are tolerant of adverse habitat changes.Nature-friendly planning strategies were established based on analysis of the environmental characteristics. *: 본 논문은 강원지역환경기술개발센터에서 시행한 2002년도 환경기술연구개발사업 연구 결과의 일부임.Corresponding author: Hyun-Kil Jo, Division of Forest Management and Landscape Architecture, Kangwon National University, Chuncheon 200-701, Korea, Tel.: +82-33-250-8345, E-mail: jhk@kangwon.ac.kr

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