The three scenarios we considered included 1) Scenario 1: Mangrove area does not change but C density (i.e., stand quality) increases: CSP ¼CMAX AC; where CMAX is the maximum C density,and AC is the current mangrove area. 2) Scenario 2: Mangrove area increases to its full potential but C density remains unchanged: CSP ¼ CAVR AP; where CAVR is the average C density, and AP is the potential mangrove area. 3) Scenario 3: Mangrove area increases to its full potential and C density increases: CSP ¼ CMAX AP; where CMAX is the maximum C density, and AP is the potential mangrove area.