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낙동강중류의 토지피복형태를 고려한 유역별 수질오염도 분석 KCI 등재

An Analysis on Water Pollution Degree by the Watershed considering Landcover Types in the Mid-Nakdong River

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

The purpose of this study is to evaluate the water pollution degree in the Mid-Nakdong River watershed regarding to landcover types using GIS method. As a result of landcover classification, rate of urban appeared highly on Daegu Metropolitan city. Also, rate of agriculture showed highly in the riparian zones of the Nakdong and Guemho River and rate of forest appeared highly in the borders of the study area. To identify the groups of watershed with similar landcover patterns using the Cluster Analysis.
According to the cluster analysis, the fifty sub-watersheds were grouped in three clusters, "Urban watershed", "Agriculture watershed", "Forest watershed". The proportion of urban area in each cluster had a positive correlation with water pollution degree.
Otherwise, the proportion of agriculture in the Agriculture watershed had a high positive correlation with water pollution degree. Therefore, it is necessary to estimate environmental capacity of water quality considering ecological and environmental characteristics of watershed ecosystem and expand water quality monitoring systems to small stream.

저자
  • 이우성(경북대학교 조경학과) | Woo Sung Lee
  • 정성관(경북대학교 조경학과) | Sung Gwan Jung Corresponding Author
  • 박경훈(창원대학교 환경공학과) | Kyung Hun Park
  • 유주한(충청북도 수목산야초연구센터) | Ju Han You