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ID 116824
Author
Okada, Tomonari National Institute for Land and Infrastructure Management
Mito, Yugo Fukken
Tokunaga, Kanae Gulf of Maine Research Institute
Sugino, Hiroaki The University of Tokyo
Kubo, Takahiro National Institute for Environmental Studies
Akiyama, Yoshihiro B. National Institute for Land and Infrastructure Management
Endo, Toru Osaka City University
Otani, Sosuke Osaka Prefecture University
Yamochi, Susumu Osaka City University
Kusakabe, Takayuki Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture
Otsuka, Koji Osaka Prefecture University
Shigematsu, Takaaki Osaka City University
Kuwae, Tomohiro Port and Airport Research Institute
Keywords
Ecosystem services
Economic value
Wetland
Restoration
Nature-based solutions
Content Type
Journal Article
Description
Nature-based solutions (NbS), such as the implementation of environmental conservation and restoration as public works projects, require accurate and cost-effective assessments of the values related to the projects. The values should represent collective ecosystem services, individual services such as food provision and water purification, and other intangible services. To comprehensively assess such services, we proposed a novel method, which we call the comparative evaluation method. Our method is able to assess the value of each service category of an NbS project from a single questionnaire survey. Survey participants are asked to compare values of multiple services having anchoring prices. Our method determines the permissible economic value of environmental public works (PEP) in response to the quantity of service. The questionnaire results used for analysis are limited to those from respondents who made their PEP evaluation on the basis of their consideration of the appropriate expenditure of taxes. In addition, the method controls for the effect of the satisfaction that a person experiences from doing good deeds to reduce an overestimation of the values of services. Moreover, PEPs are not influenced by the respondent's annual income, age, sex, or educational background, and are based on personal values. Applying this new method, we surveyed residents of the watersheds of Tokyo Bay and Osaka Bay and evaluated nine ecosystem services. Overall, our new method is shown to be an effective method for evaluating the ecosystem services of NbS projects from the viewpoint of public works.
Journal Title
Ocean & Coastal Management
ISSN
09645691
NCID
AA10827672
AA11535402
Publisher
Elsevier
Volume
212
Start Page
105848
Published Date
2021-08-20
Rights
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Research Center for Management of Disaster and Environment