ESTIMATES OF CARBON STOCKS IN A MANGROVE ECOSYSTEM IN BRAZIL: A REVIEW

This work aimed to understand the formation of carbon stocks in the mangrove ecosystem in Brazil, to elucidate the intervening factors, of biotic, abiotic and anthropic origin. To this end, a systematic review was carried out covering 113 scientific articles, 21 of which studied Brazilian mangrove areas. The global stock estimated by the literature varies between 4.19 Pg C and 6.6 Pg C and the average value calculated corresponds to 5.34 Pg C. When dealing with the specificities of the stocks present in Brazil, the values recorded vary between 358.79 Mg C/ha and 1,851 Mg C/ha, so that the average stock corresponds to 709.36 Mg C/ha. The main biotic factors that condition carbon stocks are the structural composition of vegetation, plant compartments, species diversity, physiographic characteristics and management conditions. As for abiotic factors, salinity and topographic gradient, sediment granulometry and soil depth, nutrient concentration and bioclimatic factors stand out. Furthermore, changes in land use and occupation.

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This study aimed to understand the formation of carbon stocks in the mangrove ecosystem in Brazil and identify the factors that affect it, including biotic, abiotic and anthropic factors. A systematic review of 113 scientific articles, including 21 studies on Brazilian mangrove areas, was conducted. The global estimated carbon stock varies between 4.19 Pg C and 6.6 Pg C, with an average value of 5.34 Pg C. In Brazil, the recorded carbon stocks range from 358.79 Mg C/ha to 1,851 Mg C/ha, with an average of 709.36 Mg C/ha. Biotic factors such as vegetation composition, diversity, and management conditions, as well as abiotic factors like salinity, sediment composition, and soil properties, play significant roles. Land use and occupation also contribute to changes in carbon stocks.