The above-ground C stock was estimated from mangrove tree and downed woody debris biomass. Tree biomass was calculated using allo metric equations (Table 1). The tree C pool was calculated by multiplying tree biomass with wood C content. Volume and mass of the downed woody debris were calculated using the equations reported by
Kauffman and Donato (2012). The downed woody debris C pool was calculated as the product of the downed woody debris mass multiplied by the C content.