Suppose we want to calculate the monetary costs of the sediment retention services provided by natural vegetation for providing the clean drinking water supply to people, how to do that?
Hi Dr Gowhar Meraj . An estimation of the values of ecosystem services using unit area per biome for seventeen ecosystems showed that the value ranges between $16 and 54 trillion per annum, with an average of $33 trillion. See the link:Article Estimation of Monetary Values of the Ecosystem Services Flow...
Also, valuation can help identify the beneficiaries of conservation and the magnitude of the benefits they receive and, thus, help design mechanisms to capture some of these benefits and make them available for conservation. See the link: https://media.rff.org/archive/files/sharepoint/Documents/08_Tropics_Conference/Tropics_Conference_Papers/Tropics_Conference_Pagiola_Ecosystem_Valuation.pdf