Banca de DEFESA: ANA SHAURA OLIVEIRA PINHEIRO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANA SHAURA OLIVEIRA PINHEIRO
DATA : 01/12/2021
HORA: 08:00
LOCAL: meet.google.com/epp-wsez-zkk
TÍTULO:

• FOREST DYNAMICS AND BIOMASS STOCK AND CARBON IN FOREST MANAGED UNDER THE REGIME OF CONCESSION IN FLONA DO JAMARI, RO

PALAVRAS-CHAVES:

Conservation; exploration effect; ecosystem services

PÁGINAS: 89
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

Considering the extensive coverage of the Amazon forest, we know the important role that this forest plays for its capacity to emit Greenhouse Gases via fires or deforestation, as well as its vocation as carbon sinks, since they store excess carbon gas in the form of biomass. Thus, proper forest management can result in a considerable reduction in the increase in these gases. Furthermore, with the growing international demand for legal and sustainable wood, the policy to promote forest management gained momentum, culminating in the approval of the forest concession law, whose main objectives are to promote responsible logging, stop the invasion of public forests and deforestation subsequent. Thus, this research aimed to evaluate the effects of low impact management on forest dynamics and on biomass and carbon stocks in a forest concession area in Flona do Jamari, RO. For this, a broader scale assessment of the forest was carried out using LiDAR technology, and another on a smaller scale using permanent plots. Two environments were assumed: UPA 1, containing control plots in which there was no exploration in its interior, and UPA 4, where the plots where exploration took place are located. All individuals with DBH ≥ 10 cm were measured and identified. The intervention evaluated in sampling units with exploration was minimal, such that it did not result in significant changes in the floristic composition and density of individuals. The scenario shown by the analysis of LiDAR data for the evaluation of the forest understory and the canopy corroborated what was verified, and showed that the management carried out under concessions causes disturbances below that established by the standard. It was estimated in the understory, 7.47% of the total area damaged, being 3.80% due to clearings opened by the individuals' harvest and 3.67% due to the operation infrastructure. The skid trails caused the most disturbance. Canopy changes were estimated at 7.36% and 2.55%, respectively, for the years 2014 (newly logged forest) and 2020 (after six years from the end of logging). The evaluation of the biomass and carbon stock showed that after six years of exploration the values obtained were close to the stock verified before the intervention, indicating the forest's responsiveness to biomass production and carbon incorporation. The increments in biomass and carbon by evaluation periods showed a similar pattern of increase obtained between the control area and the logging plots. Despite this, it is observed in the sample units where there was exploration, a greater increase from one period to the other. The species Tachigali spp, Tachigali setifera, Peltogyne paniculata, Protium spp., Bertholletia excelsa and Dinizia excelsa were the ones that most stood out as carbon accumulators, proving to be important species that provide environmental services. Therefore, the study showed that exploration carried out under a concession regime allows for the sustainable use of forest resources and services, while helping to maintain the integrity of the forest remnant.

MEMBROS DA BANCA:
Interno - 1805850 - MARTA SILVANA VOLPATO SCCOTI
Externo ao Programa - 1807939 - JOSE DAS DORES DE SA ROCHA
Externo à Instituição - JHONY VENDRUSCOLO - UFAM