Banca de QUALIFICAÇÃO: ANTONIO RENAN SALES DE CASTRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANTONIO RENAN SALES DE CASTRO
DATA : 06/07/2020
HORA: 15:00
LOCAL: online
TÍTULO:

DIAMETER DISTRIBUTION OF THE POPULATIONS OF SIX TREE SPECIES IN THE PERIOD OF 33 YEARS IN AN AREA MANAGED IN THE TAPAJOS NATIONAL FOREST

PALAVRAS-CHAVES:

Forest management, timber species, dynamics of tree populations

PÁGINAS: 42
GRANDE ÁREA: Ciências Agrárias
ÁREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Manejo Florestal
ESPECIALIDADE: Dendrometria e Inventário Florestal
RESUMO:

In the Amazon, knowing the composition and distribution of plant species is essential to plan the management and conservation of the native flora. In the State of Pará, in 2016 and 2017, approximately 54,424 ha of forests were logged, of which only 40% (21,876 ha) applied sustainable forest management techniques and 60% (32,548 ha) did not have authorization for harvesting from the competent agency, that is, they did not applied sustainable management techniques in the logging operation. The harvest of timber and non-timber products without using technical criteria can cause significant changes in the habitat, in the growth dynamics of trees, in the successional process and in the phenology of the species over time; it can even hinder the process of natural regeneration and maintenance of these forests. Therefore, the management of forests must be able to recover the stock of individuals and volume that was removed during harvesting, to guarantee the conservation and sustainable use of the natural resources. The analysis of the distribution of trees in diameter classes is one of the tools that can be used to infer about the past and the future of plant communities, in addition to providing a basis for identifying the intensity of natural regeneration in species level. Tropical natural forests are generally characterized by a decreasing diametric distribution, known as “J-reverse”. Therefore, it is assumed that tree species whose populations have diameter distribution in the form of J-reverse have a guaranteed stock for continuous timber production. Therefore in the present work we tried to answer the question: tree species that do not have regular diameter distribution of their individuals, that is, in the form of J-reverse, will have timber stock for continuous production in a polycyclic management system? In order to answer this question, we evaluated the dynamics of the diametric distribution of six species of economic value over a 33-year period, in a managed experimental area: Bagassa guianensis Aubl.; Caryocar glabrum (Aubl.) Pers.; Goupia glabra Aubl., Hymenaea courbaril L.; Handroanthus serratifolius (Vahl) S.Grose; Handroanthus impetiginosus (Mart. ex DC.) Mattos.

MEMBROS DA BANCA:
Presidente - 4143218 - JOAO OLEGARIO PEREIRA DE CARVALHO
Interno - 142.060.489-91 - JOSE NATALINO MACEDO SILVA - Oxford
Externo à Instituição - TATIANA DA CUNHA CASTRO - UFPA
Externo ao Programa - 1646074 - VANESSA MAYARA SOUZA PAMPLONA