Wood Properties of Four Tropical Species from Mining Areas in the Amazon, Brazil Part 1: Anatomical Characterization

Wood Properties of Tropical Species from the Amazon

Authors

  • Juliana Livian Lima de Abreu Programa de Pós Graduação em Ciências Florestais - UFRA
  • Marcela Gomes da Silva Universidade Federal Rural da Amazônia - UFRA
  • Gracialda Costa Ferreira Universidade Federal Rural da Amazônia - UFRA
  • Tamara Suely Filgueira Amorim França Mississippi State University
  • Alisson Rodrigo Souza Reis Universidade Federal do Pará - UFPA
  • Vanessa Mayara Souza Pamplona

Abstract

Vegetation suppression is a common activity in mining areas, and it generates large volumes of discharged logs from excavation activity. In most cases, these logs are stacked and stored in open-air yards, as a result, the material is exposed to conditions that favor the degradation process. Mining activities have a significant impact on the surrounding environment and ecosystem, but most of these changes are not yet understood, especially the changes that can occur in wood properties. Thus, the goal of this article (Part 1) was to characterize the anatomical features of tropical species stored in mining areas. Wood samples were identified and collected during five different exposure periods (0, 1, 4, 6, and 8 years of exposure). The species identified and studied were Jacaranda copaia, Astronium lecointei, Caryocar villosum, and Protium altissimum. Three logs were collected from each species and each year of exposure, totaling 54 specimens used for the anatomical analysis of the microstructure of the species studied. Variations in the cellular dimensions of the anatomical structures were observed but without a pattern of increase or decrease in relation to storage time. Degradation signs were also observed in some species, and Jacaranda copaia, a lower-density species, showed higher levels of degradation.

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Published

2024-01-10

Issue

Vol. 55 No. 3/4 (2023): Wood and Fiber Science

Section

Research Contributions

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