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2025 Vol.58, Issue 2 Preview Page

Research Article

A combined river habitat suitability assessment considering spatially distributed hydraulic and water quality in-situ data

공간분포된 수리ㆍ수질 측정자료 기반 복합 하천 서식처 적합도 평가

Seogyeong Leea
,
Suin Choib*
,
Dongsu Kimc
,
Siwan Lyud
이 서경a
,
최 수인b*
,
김 동수c
,
류 시완d
aMaster‘s Course, Department of Civil & Environmental Engineering, Dankook University, Yongin, Korea
bMaster‘s Course, Department of Civil & Environmental Engineering, Dankook University, Yongin, Korea
cProfessor, Department of Civil & Environmental Engineering, Dankook University, Yongin, Korea
dProfessor, Department of Civil Engineering, Changwon University, Changwon, Korea
a단국대학교 토목환경공학과 박사과정
b단국대학교 토목환경공학과 박사과정
c단국대학교 토목환경공학과 교수
d창원대학교 토목공학과 교수
*Corresponding Author
28 February 2025. pp. 105-118
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Abstract

Recently, ecological issues in rivers have caused changes in aquatic habitats. These changes have led to phenomena such as a decrease in rheophilic species and an increase in limnophilic species among riverine fish. The Habitat Suitability Index (HSI) is one of the most commonly used factors in habitat analysis. However, as the importance of water quality factors in habitat suitability increases, the need to comprehensively consider the effects of water quality has become more apparent. Therefore, this study analyzed fish habitats by incorporating water quality factors using the National Sanitation Foundation Water Quality Index (NSFWQI) alongside the Habitat Suitability Index. Field-measured data, collected using ADCP and YSI-EXOII instruments in the study area, were utilized for this purpose. A composite habitat analysis was conducted by applying suitability analysis - a GIS functionality for identifying optimal areas - to integrate the HSI and NSFWQI. The results revealed that incorporating both hydraulic and water quality indices led to differences in habitat area compared to analyzing only hydraulic indices. This study proposes a comprehensive evaluation approach that accounts for both hydraulic and water quality perspectives in assessing habitat suitability.

Keywords
Habitat suitability index
Water quality index
Fish
Habitat
ADCP

최근, 하천에서의 생태계 문제로 인한 생물의 하천 서식처 변동이 발생하였다. 그로 인하여 생물의 서식처에 변화가 일어나 하천들의 어류 중에 유수성은 감소하고, 정수성은 증가하는 등의 현상이 생겼다. 서식처 분석 시 가장 많이 활용하는 인자로 서식처 적합도 지수(Habitat Suitability Index, HSI)가 있다. 하지만, 생물의 서식에 수질인자의 중요성이 커질수록, 수질 영향을 복합적으로 고려해야 하는 필요성이 증가되고 있다. 따라서 본 연구에서는 어류의 서식처를 분석하기 위해서 서식처 적합도 지수와 수질의 등급을 나타낸 NSFWQI (National Sanitation Foundation Water Quality Index)인 수질 지수를 이용해 수질 부분을 포함하여 분석을 실시하였다. 연구 대상 구간의 ADCP, YSI-EXOII 장비를 이용해 실 계측으로 얻은 자료로 서식처 적합도 지수와 NSFWQI를 GIS에서 사용되는 기능인 최적의 지역을 찾아내는 적지분석을 활용하여 복합적인 서식처 분석을 진행하였다. 연구 결과로 수리 지수만 분석했을 경우와 수리,수질 지수 모두 포함시켰을 시 서식처 면적 차이가 발생됨을 나타냈으며, 수리 및 수질 관점의 서식처적합도 산정 방법들을 준용하여 복합적인 평가 방안을 제시하였다.

키워드
서식처적합도지수
수질지수
어류
서식처
ADCP
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Information
  • Publisher :KOREA WATER RESOURECES ASSOCIATION
  • Publisher(Ko) :한국수자원학회
  • Journal Title :Journal of Korea Water Resources Association
  • Journal Title(Ko) :한국수자원학회 논문집
  • Volume : 58
  • No :2
  • Pages :105-118
  • Received Date : 2024-09-24
  • Revised Date : 2024-12-02
  • Accepted Date : 2024-12-23
  • DOI :https://doi.org/10.3741/JKWRA.2025.58.2.105
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