Banca de QUALIFICAÇÃO: RAFAEL LIMA ARAUJO FERREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RAFAEL LIMA ARAUJO FERREIRA
DATE: 30/01/2023
TIME: 14:00
LOCAL: Remoto
TITLE:

LARGE AMAZON TREES: RELATIONSHIPS BETWEEN ABOVEGROUND BIOMASS, SPECIES RICHNESS AND WOOD STOCKS

KEY WORDS:

Carbon stocks, large trees, forest management

PAGES: 40
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Energia de Biomassa Florestal
SUMMARY:

The large trees of tropical forests are determinant for carbon stocks and fundamental for climate regulation. This study aimed to answer three questions about the large trees in the Amazon: a) what is the minimum area suitable for sampling biomass? b) What is the relationship between species richness and carbon and timber stocks? c) what is the ratio between total biomass and the biomass of the 20 largest trees?? of the plot? To answer these questions, we used forest inventory data from 11 forest management areas for logging in the western region of the state of Pará. In each area, trees with a diameter at breast height greater than 50 cm (DBH≥50cm) were sampled, adding up to a total sample area of 20,449.95 hectares. The results showed that the minimum suitable area for sampling the biomass of large trees is 25 hectares (coefficient of variation < 5%). Species richness was positively associated with biomass (r2= 0.53; p<0.01) and timber stocks (r2= 0.30; p<0.01). Our results indicate that sampling large trees requires a larger sample area than has been used in forest inventories and that species richness can be a good predictor of carbon and timber stocks in Amazonian forests.

BANKING MEMBERS:
Presidente - 3160854 - DIVINO VICENTE SILVERIO
Interno - 2315025 - HASSAN CAMIL DAVID
Externo à Instituição - DANIEL MAGNABOSCO MARRA - MPIB
Externa à Instituição - CAMILA SILVA