Taking Mao Wei Sea mangrove nature reserve as a typical sample area,organic carbon storage of mangrove wetland sediment was estimated according to sample analysis.The results showed that: the order of soil organic carbon storage was mixed species > Aegiceras corniculatum > bare flat,the average content organic carbon in the mangorove wetland soil(0-50 cm depth) were 2.797%,1.218% and0.870% respectively; The order of soil organic carbon storage per unit area is mixed species > Aegiceras corniculatum > bare f...