Abstract
Tidal flats serve as a buffer zone between land and sea, providing a habitat and breeding ground for various intertidal and marine organisms, and play a crucial role in maintaining a healthy ecosystem by purifying various pollutants that flow from land to sea. Despite the significant value of tidal flats, research on this subject remains limited. Therefore, this study aimed to assess the value of preserving tidal flats using contingent valuation method (CVM) analysis based on survey data. Among 1,000 respondents, only 331 expressed a willingness to pay (WTP) for the conservation of tidal flats. Given the high proportion of non-paying respondents, this study utilized the spike and Turnbull models to compare estimates. The results from the Turnbull method estimated the WTP at 1,855 KRW, which was approximately half that derived from the Spike model. As the Turnbull estimate represents the lower bound of WTP, utilizing the estimate from the Spike model is deemed more appropriate. Additionally, the study differentiated between respondents willing and unwilling to visit tidal flats to derive separate WTP values for use and non-use values of tidal flat conservation. The non-use value was estimated at 1,741.5 KRW, while the use value was determined to be 4,179.2 KRW.
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