In order to reduce
the impact by variation of stand ages on SOC storage and biomass
as much as possible, sampling sites were selected from the
oldest-age mangrove communities for each type of the intertidal
zone in the study area. In April 2012, three quadrats for each type
of mangrove community, but nine quadrats for A. marina, were
established. 21 quadrats (10 m 10 m) parallel to the marine
shore