Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Evaluation of InVEST habitat quality model using aquatic ecosystem health data

수생태계 건강성 자료를 이용한 InVEST habitat quality 모델 적용성 평가

  • Lee, Jiwan (Division of Civil and Environmental Engineering, College of Engineering, Konkuk University) ;
  • Woo, Soyoung (Department of Civil, Environmental and Plant Engineering, Graduate School, Konkuk University) ;
  • Kim, Yongwon (Department of Civil, Environmental and Plant Engineering, Graduate School, Konkuk University) ;
  • Park, Jongyoon (Environmental Assessment Group, Korea Environment Institute) ;
  • Kim, Seongjoon (Division of Civil and Environmental Engineering, College of Engineering, Konkuk University)
  • 이지완 (건국대학교 공과대학 사회환경공학부) ;
  • 우소영 (건국대학교 일반대학원 사회환경플랜트공학과) ;
  • 김용원 (건국대학교 일반대학원 사회환경플랜트공학과) ;
  • 박종윤 (한국환경.정책평가연구원 환경평가본부) ;
  • 김성준 (건국대학교 공과대학 사회환경공학부)
  • Received : 2021.06.02
  • Accepted : 2021.06.22
  • Published : 2021.09.30
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Abstract

Ecosystem biodiversity is rapidly being lost due to changes in habitat, fragmentation of habitat, climate change, and land use changes by human activities. Recently, attempts have been made to approach the watershed management level to secure the health of the watershed, but studies on how to approach biodiversity and habitat management are still in lack. The purpose of this study is to evaluate the habitat quality of Geum river basin using Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) habitat quality model. The results of habitat quality was verified to eco-natural map and ecological watershed health evaluation results. The habitat quality of watershed was evaluated from 0 to 0.86 and the results showed that habitat quality was higher in upstream than downstream. Compared the habitat quality value in each eco-natural grade, the average habitat quality of 1st, 2nd and 3rd grades were 0.80, 0.76 and 0.71 respectively. The results of the correlation analysis with ecological watershed health data, the coefficient of determination (R2) was 0.58, and the person coefficient was 0.76. The results of this study may be used as foundation data to support habitat protection and implementation of long-term biodiversity-related policies.

인간활동으로 인해 서식처의 변화, 서식처의 파편화를 비롯하여 기후변화, 토지이용의 변화 등으로 생태계 생물 다양성은 빠르게 손실되고있는 상황이다. 최근 들어 유역의 건전성을 확보하기 위해 유역관리 차원에서 접근하려는 시도가 시작되었으나 어떠한 수단을 통해 생물다양성과 서식처 관리에 대하여 접근할 수 있는지에 대한 연구는 아직 부족한 실정이다. 본 연구의 목적은 금강유역을 대상으로 Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) habitat quality model을 이용하여 유역의 서식처 질을 평가하는 것이다. 서식처 평가결과는 생태·자연도 및 수생태 건전성 평가결과와의 비교분석을 통해 검증되었다. 금강유역의 서식처 질은 0.0 ~ 0.86으로 분석되었으며, 유역의 하류보다 상류에서 서식처 질이 더 높은 것으로 나타났다. 생태·자연도 등급별 평균 서식처 질을 비교한 결과 1등급, 2등급, 3등급에서 각각 0.80, 0.76, 0.71이었다. 수생태 건전성 결과와의 상관성 분석결과 R2은 0.58, Pearson 상관계수는 0.76 였다. 본 연구의 결과는 향후 서식처 보호의 강화와 장기적인 생물 다양성 관련 정책의 실행을 지원하는 기초자료로 활용될 수 있다.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원의 수생태계 건강성 확보 기술개발사업의 지원을 받아 연구되었습니다(2020003050001).

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