Lumber Yield of Four Native Forest Species of the Amazon Region

Rafael Rodolfo De Melo,Francisco Rodolfo Junior,Jessyca Mayra Fruett Dacroce,Luciano Cavalcante De Jesus França,Gerson Dos Santos Lisboa

doi:10.1590/2179-8087.031116

Abstract

ABSTRACT The objective of this study was to evaluate the volumetric lumber yield of four native species of the Amazon Region: Cedrinho (Erisma uncinatum Warm), Cumaru ( Dipteryx odorata Aublet), Garapeira (Apuleia leiocarpa Voguel), and Cambara (Qualea paraensis Ducke). Twelve logs of each species with different diameters were randomly selected from different sawmills in northern Mato Grosso state, Brazil. Additionally, the influence of diameter on the yield of each species was evaluated through regression analysis. Among the evaluated species, Cedrinho obtained the highest yield values, followed by Garapeira. Cumaru and Cambara showed the lowest yields, and did not differ statistically. Log diameter negatively influenced lumber yield, except for Cumaru wood, which did not present a clear relation between these parameters.

Highlights

Wood has always been considered very useful for the development of humankind, both for its intrinsic and commercial uses
The forestry sector is significant in the Brazilian economy, accounting for 3.4% of the Country’s Gross Domestic Product (GDP), generating approximately 44.6 billion dollars
The Amazon region stands out as one of the main producers of tropical wood worldwide, and the north region of Mato Grosso state is highlighted in forest production (Melo et al, 2015)

Summary

Introduction

Wood has always been considered very useful for the development of humankind, both for its intrinsic and commercial uses. The forestry sector is significant in the Brazilian economy, accounting for 3.4% of the Country’s Gross Domestic Product (GDP), generating approximately 44.6 billion dollars. The Amazon region stands out as one of the main producers of tropical wood worldwide, and the north region of Mato Grosso state is highlighted in forest production (Melo et al, 2015). The forestry sector is very important for the economy of Mato Grosso state, including 228 approved Sustainable Forest Management Plans (PMFS - Planos de Manejos Florestais Sustentáveis), with a total area of 243,925.58 ha that produces 85,659 tons of lumber, generating approximate revenue of USD86.024 million for the international market and BRL39 million for the domestic market (Centro das Indústrias Produtoras e Exportadoras de Madeirado no Estado de Mato Grosso - CIPEM, 2014). Wood felled and harvested in the interior of the state is destined for both the domestic and external markets

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Results