Biomass carbon stocks in the mangrove rehabilitated area of sinjai district, south sulawesi, indonesia

Abstract

Mangrove forest plays a crucial role in climate change mitigation by storing carbon in its above-belowground pools. However, this forest remains under considerable high exploitation from the expansion of settlement and aquaculture pond that likely results in much CO 2 release to the atmosphere. The objective of this research is to estimate biomass carbon stocks of mangrove rehabilitated areas in Sinjai District, South Sulawesi. We used a line transects method for mangrove vegetation survey and determined above-belowground biomass and carbon stock using published allometric equations and a conversion factor, respectively. The results showed that the mean values of carbon stocks in above-belowground biomass were 125.48±93.48 Mg C ha -1 and 60.23±44.87 Mg C ha -1 . The aboveground biomass stored more carbon than the belowground pool. However, low planting distance in mangrove rehabilitation and conversion of mangrove area into settlements and aquaculture ponds in the last three decades have affected forest structure and biomass carbon magnitudes. Therefore, preservation of intact mangrove and restoration of disturbed forests with pay attention to planting distance should consider. Besides, halting the expansion of settlements and aquaculture ponds are worthwhile options to maintain and possibly increase biomass carbon stocks.

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