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2020 Vol.7, Issue 4 Preview Page

Original Article

A Case Study of Assessment of the Ecological Connectivity of Cross Sectional Structures in the Flowing Stream

하천 내 횡단구조물에 대한 수생태 연속성 평가 방안에 대한 연구

Heung Sik Choi1*
최 흥식1*
1Professor, Department of Civil Engineering, Sangji University, Wonju 26339, Korea
1상지대학교 건설시스템공학과 교수
*Corresponding Author
31 December 2020. pp. 320-326
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Abstract

The present study aimed to assess the longitudinal connectivity owing to migrant characteristics of the target fish. The study area was Wonju-cheon Stream, and the target species were Zacco platypus and Minnows. The HEC-RAS model was used for the computation of the flow, and the ICE (Information sur la Continuite Ecologique) method was used to analyze the longitudinal connectivity. The longitudinal connectivity was assessed using the minimum overflow height, velocity, and depth of the cross sectional structure of a plunge pool and considering the swimming speed of the target fish. Simulation results indicated that the longitudinal connectivity scores for the Zacco platypus and Minnows were approximately 76 and 23, respectively.

Keywords
HEC-RAS
ICE method
Lateral structure
Longitudinal connectivity
Wonju-Cheon Stream
Zacco platypus and Minnows

본 연구는 횡단구조물에서의 어류의 이동 특성에 따른 종적 연결성을 평가하였다. 대상 구간은 원주천이며, 대상 어종은 피라미와 잡고기를 대상으로 하였다. 흐름 분석은 HEC-RAS 모형을 사용하였으며, 종적 연결성 분석은 ICE 방법을 적용하였다. 종적 연결성을 분석하기 위하여 수리분석 결과물 중 횡단구조물 상･하류 수위차, 유속, 하류단 웅덩이 깊이에 따른 대상 어종의 유영 속도를 적용하였다. 그 결과 피라미의 경우 종적 연결성이 약 76점, 잡고기의 경우 종적 연결성이 약 23점으로 나타났다.

키워드
HEC-RAS
ICE 방법
횡단구조물
종적 연결성
원주천
피라미와 잡고기
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 7
  • No :4
  • Pages :320-326
  • Received Date : 2020-11-17
  • Revised Date : 2020-12-15
  • Accepted Date : 2020-12-15
  • DOI :https://doi.org/10.17820/eri.2020.7.4.320
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