한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제56권3호
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  • Pages.225-233
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  • 2023
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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도시하천 수질개선을 위한 시민의 지불의사액 추정 연구

Estimation of citizen's willingness to pay for water quality improvement on urban rivers

  • 강지윤 ((재)부산연구원 환경안전연구실/시민안전연구센터) ;
  • 양진우 ((재)부산연구원 환경안전연구실) ;
  • 황영순 ((재)부산연구원 경제산업연구실) ;
  • 김기욱 ((재)부산연구원 시민안전연구센터)
  • Kang, Jiyoon (Environment and Safety Research Lab, Citizens' Safety Research Center, Busan Development Institute) ;
  • Yang, Jinwoo (Senior Research Fellow, Environment and Safety Research Lab, Busan Development Institute) ;
  • Hwang, Youngsoon (Economy and Industry Research Lab, Busan Development Institute) ;
  • Kim, Keewook (Citizens' Safety Research Center, Busan Development Institute)
  • 투고 : 2022.10.09
  • 심사 : 2023.02.10
  • 발행 : 2023.03.31
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초록

도시하천은 급속한 경제성장과 개발 등 여건변화로 본연의 모습과 가치를 잃고 인공적인 모습으로 변해왔다. 이로 인해 도시민의 삶의 질과 만족도 또한 하락되고 있다. 본 연구에서는 부산의 대표적 도시하천인 수영강을 대상으로 도시하천 수질 개선을 위한 도시민의 지불의사액을 추정하였다. 비시장가치 추정을 위해 조건부가치측정법(Contingent Valuation Method, CVM)을 적용하여 수질개선을 위한 지불의사액(Willingness To Pay, WTP)를 파악하고 경제적 가치를 추정하였다. 가상시나리오는 EPA, 수질사다리(waterquality ladder)의 개념을 이용하여 현재 수영강 수질이 오염된 물(4등급)이라고 가상시장을 설정하고 낚시가 가능한 수준(2등급)까지 개선을 시키고자 할 때의 지불의사를 조사하였다. 이때 지불수단은 기부금의 형태로 지불기간은 연 1회 향후 5년간으로 설정하였다. WTP는 한국개발연구원(Korea Development Institute, KDI)에서 제시하고 있는 로지스틱 분포와 스파이크 모형을 사용하여 추정하였다. 지불의사 추정결과 수영강 인접 지역주민의 지불의사가 상대적으로 높게 추정되었다. 또한 부산시민의 절반 이상(56.5%)이 '자연 및 생태보전'을 수영강의 주요 기능으로 인지하고 있음을 고려할 때, 하천환경개선을 위한 지불의사의 상승은 도시하천의 가치 향상을 위한 정책적 의사결정 기준으로 작용할 것으로 판단된다. 또한 도시민의 삶의 질 향상 기대수준 충족과 더불어 도시하천 경제적 가치상승을 위한 재원 조달 방안을 마련할 수 있을 것이다.

Urban rivers and their surrounding environments have been altered due to factors such as rapid economic growth and urban development. This alteration have caused the rivers to lose their original value and become exposed to various pollution, resulting decrease in citizens' quality of life. This study aims to estimate citizens' Willingness To Pay (WTP) for water quality improvement in Suyeong River in Busan. To estimate the non-market value of the Suyeong River, the WTP of Busan citizens for water quality improvement was estimated, applying Contingent Valuation Method (CVM). The WTP for improving the water quality from Grade 4(polluted water) to Grade 2(game fish like bass can live in it) was estimated using the water quality ladder concept of the US Environmental Protection Agency, assuming annual donations for five years. For the CVM, the logistic distribution and Spike Model were adopted. As a result, citizens residing in the surrounding area of Suyeong River expressed a higher WTP. Considering more than half of the Busan citizens are aware of the "conservation of nature and ecosystems" as a major function of the Suyeong River, this higher WTP could serve as a basis for improving the value of urban rivers.

키워드

과제정보

본 연구는 (재)부산연구원 수탁과제 '부산광역시 통합물관리 기본계획 수립 연구용역'의 일환으로 수행된 '부산시민의 물문화에 관한 인식 및 정책적 수요조사'의 연구비 지원으로 수행되었음.

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