Abstract
The objective of this study was to map the spatial distribution of aboveground carbon stock (using Regression-kriging) of arboreal plants in the Atlantic Forest, Semi-arid woodland, and Savanna Biomes in Minas Gerais State, southeastern Brazil. The database used in this study was obtained from 163 forest fragments, totaling 4,146 plots of 1,000 m2 distributed in these Biomes. A geographical model for carbon stock estimation was parameterized as a function of Biome, latitude and altitude. This model was applied over the samples and the residuals generated were mapped based on geostatistical procedures, selecting the exponential semivariogram theoretical model for conducting ordinary Kriging. The aboveground carbon stock was found to have a greater concentration in the north of the State, where the largest contingent of native vegetation is located, mainly the Savanna Biome, with Wooded Savanna and Shrub Savanna phytophysiognomes. The largest weighted averages of carbon stock per hectare were found in the south-center region (48.6 Mg/ha) and in the southern part of the eastern region (48.4 Mg/ha) of Minas Gerais State, due to the greatest predominance of Atlantic Forest Biome forest fragments. The smallest weighted averages per hectare were found in the central (21.2 Mg/ha), northern (20.4 Mg/ha), and northwestern (20.7 Mg/ha) regions of Minas Gerais State, where Savanna Biome fragments are predominant, in the phytophysiognomes Wooded Savanna and Shrub Savanna.
Highlights
The top carbon dioxide emitters in the world are China, USA, and India, with Brazil occupying the fourteenth place on the list [1]
This study evaluates aboveground carbon stock mapping of arboreal plants of this important Brazilian State, which is a geographic reference of the great vegetation diversity existing in Brazil
The geographical model generated for the existing native vegetation in Minas Gerais State, Brazil, showed that Biome, latitude and altitude are variables capable of explaining changes in aboveground carbon stock in different regions of Minas Gerais State
Summary
The objective of this study was to map the spatial distribution of aboveground carbon stock of arboreal plants in the Atlantic Forest, Semi-arid woodland, and Savanna Biomes in Minas Gerais State, southeastern Brazil. The objective of this study was to map the spatial distribution of aboveground carbon stocks of arboreal plants using Regression-kriging procedure, and subsequently describing carbon concentration distribution in aboveground parts of arboreal plants in the Atlantic Forest, Savanna, and Semi-arid woodland Biomes in Minas Gerais State
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