Banca de DEFESA: ADRIELLY ROBERTA BENTES LOUCHARD

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ADRIELLY ROBERTA BENTES LOUCHARD
DATE: 28/01/2022
TIME: 08:30
LOCAL: Sala virtual do Skype
TITLE:

YIELD, COSTS AND INCOME OF LOGGING HOLLOW TREES IN A DENSE OMBROPHILOUS FOREST IN WESTERN OF PARÁ STATE, BRAZIL.

KEY WORDS:

Defects on trees, volume yield, Saracá Taquera National Forest; Amazônia.

PAGES: 58
BIG AREA: Ciências Agrárias
AREA: Recursos Florestais e Engenharia Florestal
SUBÁREA: Manejo Florestal
SUMMARY:

The occurrence of hollow trees is common in many regions of the Brazilian Amazon and, in the case of some species, this defect affects a considerable number of individuals. Although Brazilian forestry legislation allows the replacement of hollow trees with healthy ones, in order to reduce wood waste, little is known about the real impact of the occurrence of this defect and the replacement of hollow trees on production, yield and logging costs. A natural consequence of the rejection of hollow trees is the progressive impoverishment of the forest due to the accumulation of defective trees, whether due to the occurrence of hollows, crookedness or other defects. The objective of this work was to evaluate whether logging of hollow trees has a significant impact on the production, costs and income of exploration compared to conventional procedures. The study was carried out in the Saracá-Taquera National Forest, located in western Pará. The experimental design used was completely randomized, with three treatments and seven replications. The area of each replication was nine hectares, totaling 189 ha. The treatments applied were as follows: T0 (control) – logging carried out as permitted by law, that is, with the replacement of hollow trees; T1 - logging in compliance with the legislation restrictions, but without discarding or replacing hollow trees, and T2 - logging in compliance with the legislation restrictions, without discarding hollow trees, but completing the maximum logging volume allowed by the legislation with one replacement tree for each hollow tree logged. In all treatments, the volume of timber extracted, the volume of residues, the operation costs and the volume yield were recorded. The analysis of variance revealed that there was no significant difference between the three treatments regarding the volume of extracted timber, the volume yield, nor between the volume of waste generated. It was concluded that logging hollow trees can be carried out to avoid the impoverishment of the forest over the cutting cycles, as there is no greater waste generation than that created by logging as carried out today, with the replacement of hollow trees.

BANKING MEMBERS:
Presidente - 142.060.489-91 - JOSE NATALINO MACEDO SILVA - Oxford
Externo ao Programa - 4143218 - JOAO OLEGARIO PEREIRA DE CARVALHO
Externa ao Programa - 1646074 - VANESSA MAYARA SOUZA PAMPLONA
Externo à Instituição - ADEMIR ROBERTO RUSCHEL - EMBRAPA
Externo à Instituição - EDSON JOSE VIDAL DA SILVA - USP