<![CDATA[Gunung Maras National Park, Bangka Regency, has mangrove stands with considerable potential for carbon storage. However, information on mangrove density, aboveground biomass, carbon stock, and carbon dioxide sequestration in Mengkubung Hamlet is still limited. This study aimed to analyze mangrove density, estimate aboveground biomass and carbon stock, and determine carbon dioxide sequestration by species. The study used a descriptive quantitative method, with sampling locations selected using purposive sampling at three stations, each consisting of three plots. Stem diameter was measured at 1.3 m above the ground, and biomass was calculated using species-specific allometric equations. Carbon stock was calculated using a carbon fraction of 47% of dry biomass, while carbon dioxide sequestration was calculated using a conversion factor of 3.67. The results showed that total mangrove density was 1,365 ind/ha at Station 1, 3,098 ind/ha at Station II, and 3,510 ind/ha at Station 3. Total aboveground biomass was 402.59 ton/ha, with the highest value at Station 2, at 229.38 ton/ha. Total aboveground carbon stock was 189.22 ton C/ha, while carbon dioxide sequestration was 694.42 ton CO₂/ha. Rhizophora stylosa had the highest values among the mangrove species studied. These results indicate that mangroves in Gunung Maras National Park have substantial carbon storage potential and therefore require protection and rehabilitation, particularly in areas experiencing human pressures.]]>
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