I think that "No", Thus, the formula used to calculate below carbon content/stock for mangrove forests cannot be used for reserve forests. The two ecosystems are vastly different and there are many factors that need to be taken into account when calculating carbon content/stock for each. Therefore, a separate formula must be used to calculate carbon content/stock for reserve forests.
Growth pattern of mangrove forest is little peculiar due to species crooked growth habit. Hence it will be less precise if we use formula of other commercial timber species of reserved forest.