Tamanho de parcelas para quantificação de biomassa e carbono em uma floresta ombrófila densa na Mata Atlântica / Size of fragments for the quantification of biomass and carbon in a thick ombrophilous rainforest in Mata Atlântica

AUTOR(ES)

Carla Regina Bais

DATA DE PUBLICAÇÃO

2009

RESUMO

Rainforest is defined as a vegetable formation which takes up a large part of the Brazilian territory, from the Amazon Rainforest to the forests of the highlands of the southern states of Brazil, going through the Atlantic Forest. Due to the type of colonization Brazil had , which was a colonization of exploitation, a large part of this forest was destroyed, and the Mata Atlântica was the one which suffered most destruction. Nowadays only a small percentage of this forest remains and it is spread along the Brazilian territory. The total biomass of the forests (TB) is stored in different compartments and its value is estimated by the total amount of each one of these which comprises the living biomass above ground (LBAG) , which spans from the trunk foot to the top; the underground biomass which comprises the leaves, roots, branches and other dead parts of the plant that fall to the ground and that haven´t been decomposed ( sarpler ), the dead wood and the organic matter of the soil ( OMS ), which comprises the parts that are already decomposed. In rainforests, the largest part of this total biomass is found in trees mainly LBAG, as green wood ( around 70% of the total biomass ) and with significant amount of water ( about 15% to 20%). In order to evaluate the excellent size of the fragment and estimate LBAG, three statistic methods will be used, the maximum bend method, the Gomes (1984) method and the variant comparison method, taking into account the forest volume and its help in carbon seclusion studying the biomass value of this forest through equations. Sixty four segments were used and inside each segment nine 10 - sq. meter- subsegments were installed. In them, the DAPs of all trees over 5cm were measured. It was inferred that the most adequate statistic method to study a Rainforest was the Gomes (1984) because it presented single sizes as optimum segment size.

ASSUNTO(S)

carbono tropical forests- statistc methods- mata atlântica. biomass experimental delineation florestas tropicais - métodos estatísticos - mata atlântica delineamento experimental bioomassa carbon

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