RELATIONSP BETWEEN FLORISTIC DIVERSITY, SOIL CHARACTERISTICS, AND CARBON STOCK

Resumo

In this research, we aimed to identify the floristic and soil parameters that are most related to carbon stock. For this purpose, data on Diameter at Breast Height (DBH) and total height of all individuals with DBH > 5 cm were collected in 38 plots of 20x10 meters. Subsequently, carbon stock in each plot was determined based on the equation proposed by Chave et al.,(2014). Concurrently, floristic diversity parameters and soil characteristics were recorded, including species richness, number of plants, number of strata, percentage of organic matter, hydrogenionic potential and calcium, percentage of clay, percentage of silt, and percentage of sand. These parameters were associated with carbon stock in each plot. Our results revealed a positive correlation between carbon stock and the number of strata, hydrogenionic potential and calcium, percentage of clay and silt, and a negative correlation with species richness, number of plants, percentage of organic matter, and percentage of sand. In this research, we demonstrated that areas richer in species do not always positively impact carbon stock, and we highlight that the presence of multiple forest strata associated with dominance by large trees better explains carbon stock.