Ecology and Resilient Infrastructure

Korean Society of Ecology and Infrastructure Engineering (응용생태공학회)
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Variation of Water Quality and Periphytic Algae in Multi-layer and Porous Structure for River-bed Protection using Bio-polymer materials: A Case Study of Daecheong-stream in Gimhae-Si

Bio-polymer 소재를 활용한 다층다공성 하상보호공 적용에 따른 수질 및 부착조류의 변화량: 김해시 대청천을 중심으로

  • Lee, Sang-Hoon (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Ahn, Hong-Kyu (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology) ;
  • Che, Soo-Kwon (Department of Environmental Health and Safety, Eulji University)
  • 이상훈 (한국건설기술연구원 국토보전연구본부) ;
  • 안홍규 (한국건설기술연구원 국토보전연구본부) ;
  • 채수권 (을지대학교 보건환경안전학과)
  • Received : 2019.11.14
  • Accepted : 2019.11.26
  • Published : 2019.12.31
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Abstract

This study monitored Daecheong 1-bo, Daecheong-stream, which carried out the project in 2014, from 2015 to 2016. The technology applied to the stream was evaluated using Periphytic Algae to check contamination indicators and ecological health of the area with an integral river-bed protection using non-toxic materials. The water quality of the monitoring section was confirmed to be above the river environment standard (II), and it was confirmed that the Saproxenic taxa of the river bed protection were higher than the upper and downstream sections. The TDI, which is an index of attachment algae, was shown in the average 51.03 and 52.15 for the pilot project sections in 2015 and 2016, confirming that the index is of the "normal" grade. This is the other sections in the upstream and downstream sections showed higher than "bad", which is thought to have a positive effect on the habitat of the river ecosystem components, especially the microbial population in river bed protection.

본 연구는 2014년도에 사업을 수행한 대청천 대청1보를 2015년부터 2016년도까지 모니터링 하였다. 하천에 적용된 기술은 무독성 소재를 이용한 일체형 하상 보호공으로 해당 구간의 오염지표 및 생태적 건강성을 확인하기 위하여 부착조류 (Periphytic Algae)를 이용하여 평가하였다. 모니터링 구간의 수질은 하천생활환경기준 (II)등급 이상으로 확인되었으며, 하상보호공 구간의 조류는 상, 하류 구간보다 호청수성 부착조류종이 높게 나타남을 확인하였다. 부착조류 지수인 TDI 지수는 2015년과 2016년의 경우 하상보호공 구간인 ST-2는 평균 51.03 및 52.15 나타내어 '보통' 등급인 것을 확인 하였다. 이는 상, 하류의 다른 정점이 '나쁨'보다 하상보호공 구간이 높게 나타난 것으로 하천 생태계 구성요소의 서식, 특히 미소생물군의 서식에 긍정적인 영향을 미치는 것으로 판단된다.

Keywords

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