The study collects original monetary estimates for Nature Based Solutions (NBS) and benefits,
with restoration approach in a basin context. A database of 187 monetary estimates is constructed
to perform the first meta-analysis, which will assess how individuals value the NBS restoration
measures and their benefits. We find that individuals value, in particular, global climate regulation,
local environmental regulation, recreational activities, and habitat and biodiversity benefits. We
find also that NBS measures aimed at floodplains and river streams are more highly valued. The
results of this study suggest that the Willingness-to-pay (WTP) is weakly influenced by the
methodological variables. While the contingent valuation method affects the WTP compared to
studies using choice experiments, the payment and econometric method means have only a
marginal effect. Survey modes are never significant. Finally, studies on the US and Europe country
contexts show higher WTP than those conducted in Asia.