Using contingent valuation method to estimate the WTP for mangrove restoration under the context of climate change: A case study of Thi Nai lagoon, Quy Nhon city, Vietnam

Mangroves in Thi Nai lagoon have typically provided different values for local communities. This study examines the factors influencing on the willingness to pay (WTP) of respondents for mangrove restoration in Thi Nai lagoon, Quy Nhon city, Binh Dinh province, Vietnam. A contingent valuation survey was employed in order to estimate the willingness to pay for mangrove restoration under the context of climate change. Findings showed that local awareness of the importance of the values given by mangroves was popularized among local communities. Noticeably, regression results indicated that respondents who consider the future climate scenario is severe are willing to pay more for mangrove restoration. In addition, households with permanent housing condition or whose livelihoods have greater dependence on the mangroves are willing to have higher contribution for mangrove restoration. The study suggests that local awareness of the mangroves importance, as well as the necessity of mangrove protection and restoration, should be publicly enhanced in the context of climate change and urbanization. Since mangroves can make significant contribution to reduce climate change impacts, the urban expansion plan of Quy Nhon city should be carefully considered as it can influence the existence of the mangroves in the long term.