Banca de DEFESA: RODRIGO ANTONIO PEREIRA JUNIOR

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : RODRIGO ANTONIO PEREIRA JUNIOR
DATE: 21/12/2021
TIME: 08:30
LOCAL: Remota
TITLE:

FOREST MANAGEMENT AS A MEANS OF CONSERVATION OF SPECIES: A PROPOSAL FOR THE SUSTAINABLE MANAGEMENT OF THE ACAPU SPECIES (Vouacapoua americana Aublet)

KEY WORDS:

Population structure and dynamics, sustainable species management, sustainable management guidelines.

PAGES: 100
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Manejo Florestal
SPECIALTY: Ordenamento Florestal
SUMMARY:

The species Vouacapoua americana Aublet (acapu or acapuzeiro), has great wood importance and, ecologically, stands out in the composition of the forests where it occurs. In the Brazilian Amazon, the species is being heavily explored without taking into account the knowledge of its ecological, structural, dynamic, silvicultural, use, economic variables, among others. The aim of this study was to contribute to the establishment of sustainable management of V. americana. The distribution zone of the V. americana populations  occur in the Eastern Amazon. Dendrometric, dendrological and tree location data were obtained from Pre-Harvest Forest Inventories (IFPC) and their Continuous Forest Inventories (IFC). Information on the diametric, basal, volumetric and hypsometric structure of the species was obtained from each studied population. To evaluate the spatial distribution pattern, Ripley's K(h) function was used. To identify the ecological group of the V. americana species, two groups were considered: pioneer and non-pioneer (later successional state)For the dynamics, three stages were considered, regeneration (total height ≤30cm to DBH<2.5cm), shrub stratum (2.5cm ≤ DBH <10cm) and arboreal stratum (DBH≥10cm), and the Natural Regeneration rate (TR) was calculated. %), Ingress/recruitment (I%) and Mortality (M%). Based on the structural and dynamic characteristics, guidelines for the sustainable management of V. americana were defined. A total of 36,609 trees with a diameter varying between 10 cm and 127.32 cm were registered. Density between 6.31 trees/ha and 25.55 trees/ha. Diametric distribution showed decreasing from the smallest to the largest diameter classes and when adjusted presented a distribution curve, resembling a "reverse-J", a behavior reported in other studies with the species and in primary forests without disturbance anthropogenic, indicating this type of diametric distribution as a structural characteristic of the species. The basal area ranged between 0.5063m²/ha and 3.4521m²/ha, this variation was mainly influenced by the density of the species than by the DAP presented. The commercial height ranged from 2.00 m to 25.00 m, with median heights from 10 to 16 m predominating, values similar to these were observed in other studies with the species. The volume ranged from 1.6645m³/ha to 32.169m³/ha, the highest concentrations were observed in diameter classes between 40 and 80cm. V. americana was characterized in the successional group of non pionner species, having as the spatial arrangement of the trees the aggregated or grouped pattern, which was influenced by the dispersal syndrome of the species. The dynamics in the levels of seedlings, canes and arbors showed variation in ingress and mortality rates, and in the arboreal population the number of trees did not vary much between measurements, indicating adaptation of the species to shading conditions in the forest. The tree population presented a diameter growth ranging from 0.22 to 0.29 cm/year, being considered low, however, in accordance with other studies for the species. The characteristics of structure, dynamics, ecology, phenology and use of V. americana provided the definition of guidelines for the sustainable management of the species, from the forest inventory, through the selection of trees and silvicultural treatments.

 

BANKING MEMBERS:
Presidente - 745.945.679-91 - ADEMIR ROBERTO RUSCHEL - EMBRAPA
Externo à Instituição - MARCELINO CARNEIRO GUEDES
Externo à Instituição - EDSON JOSE VIDAL DA SILVA - USP
Externa à Instituição - ELY SIMONE CAJUEIRO GURGEL - MPEG
Externo à Instituição - ROBERTO PORRO - EMBRAPA