Banca de DEFESA: TAMIRES RAIANE DAMASCENO RIBEIRO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : TAMIRES RAIANE DAMASCENO RIBEIRO
DATE: 29/10/2021
TIME: 14:00
LOCAL: Sala virtual no google meet
TITLE:

PROGNOSIS OF THE GROWTH AND PRODUCTION OF PARICÁ STANDS, IN THE EASTERN AMAZON

KEY WORDS:

Biological models; Hypsometric relationship; Volumetric estimate; Productive capacity; Algebraic difference approach; Clutter model; Survival

PAGES: 54
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUMMARY:

 

The knowledge of the intrinsic dendrometric characteristics of the species used in commercial plantations is essential in production planning and in the commercialization of the generated product. The modeling of growth and production makes it possible to predict forest production, providing a basis for planning the management of stands. Thus, the objective of the present dissertation was to predict the volume and technical rotation based on the modeling at the level of the paricá stand in the Eastern Amazon. For this, (o) the total height, the volume of individual trees and the growth in height of the dominant trees were modeled, in addition to proposing a Clutter model with addition of survival to project the growth and production at the total stand level. Data were obtained from 13 permanent plots for five years, measuring diameters with bark at breast height, total height and dominant. The Smalian method was used to cube 104 trees. Hypsometric, volumetric and dominant height growth models were adjusted. In the best height equation, the technique of parameter decomposition and inclusion of the dominant height and covariates (Hd), age (Id) and basal area (G) was applied. For the classification of productive capacity, models fitted in anamorphic and polymorphic forms were used, using the guide curve and algebraic difference method. To project growth and production, the Clutter model with and without survival was used. The choice of the best equation was evaluated using the correlation coefficient, standard error of estimate, Akaike's information criterion and graphical analysis of the residuals. The selected and validated models were: modified logistic for total height, Schumacher-Hall for volume and Chapman-Richards (ADA- anamorphic) for dominant height. The Logistic model with covariates developed in this study, provided precision gains in estimating total height for different population densities, different stages of growth and site variability. The curves generated by the Chapman- Richards model (ADA – Anamorphic) described the behavior of the dominant height as a function of age, reflecting in places with distinct productive characteristics represented by the site indices of 13, 16 and 19 m. The distribution of the 13 plots showed that 38.5% (n=5), 53.8% (n=7) and 7.7% (n=1) fell into the low, medium and high capacity classes. productive, respectively. In the growth and production projection modeling, it was found that the number of trees (survival) has no effect on the production in basal area and volume, opting for the segmented Clutter model without the addition of this variable, in which it was accurate and compatible. The traditional model predicted the technical rotation age at three years of age, not differing between productivity classes. These results highlight the need for further studies for the species, considering different spacing, sites, genetic resources from different sources, in addition to other modeling approaches. It was concluded that the modeling approaches were accurate and compatible to predict the population of paricá, which serves as a basis for conducting and planning the production of the species in the Amazon.

BANKING MEMBERS:
Presidente - 388426 - FRANCISCO DE ASSIS OLIVEIRA
Externo à Instituição - RUY GUILHERME CORREIA - NENHUMA
Externa à Instituição - VANDA MARIA SALES DE ANDRADE - NENHUMA
Externo à Instituição - WALMER BRUNO ROCHA MARTINS - UEPA