“…A diverse range of valuation methods has been applied to value wetland services (Brander et al, 2006). These include the contingent valuation method (Siew et al, 2015; Ndebele & Forgie, 2017; Vidal Gimenez & Ruiz Mas, 2020; Eregae et al, 2021; Yavari et al, 2021), travel cost method (Musamba et al, 2012; Ghermandi, 2018; Shah & Islam, 2021), both contingent valuation and travel cost methods (Vidal Gimenez & Ruiz Mas, 2020; Alora & Nandagiri, 2015), choice experiment method (Dias & Belcher, 2015; Tan et al, 2018; Getnet & Taw, 2021) and benefits transfer method (Zhou et al, 2020; Badamfirooz et al, 2021) among others. Again, many studies have estimated only one out of many possible wetland attributes, like wetland biodiversity, and others have estimated more than one or the total economic value of wetland ecosystems.…”