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| 수요 및 공급측면에서 평가한 하천 생태계서비스의 경제적 가치 |
| 안소은, 김지은 |
| 한국환경정책･평가연구원, 정책연구본부 |
| Economic Values of Freshwater Ecosystem Services from Demand and Supply Perspectives |
| So Eun Ahn, Gieun Kim |
| Korea Environment Institute, Environmental Policy Research Group |
| Corresponding author |
So Eun Ahn ,Tel: 044-415-7659, Fax: 044-415-7644, Email: seahn@kei.re.kr
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Received: May 17, 2016; Revised: October 12, 2016; Accepted: October 25, 2016. Published online: October 31, 2016. |
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| ABSTRACT |
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This study aims to estimate the values of freshwater ecosystem services from demand and supply perspectives. From demand side, unit-values of ecosystem services are derived from Environmental Valuation Information System (EVIS) and aggregated to 5 main watersheds in Korea. The derived unit-values are based on the willingness to pay estimates per household from stated preference methods. The nation-wide average total values of water quantity supply, water purification, and natural disaster control are estimated as 501.2, 410.4, and 242.4 billion won/year, respectively. From supply side, we examine the direct and indirect public expenditures (or investment) in 2013 to improve freshwater ecosystem services by the government. The total sum of government expenditures corresponds to 8,882 billion won in 2013, where 12.9, 81.3, 0.3 and 5.3% are spent to improve provisioning, regulating, supporting and cultural services, respectively, indicating that most efforts are concentrated in enhancing regulating services. |
| Key Words:
Freshwater Ecosystem Services, Willingness to Pay, Public Investment, Environmental Valuation Information System (EVIS) |
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