Potencial madeireiro de esp?cies nativas do Brasil em plantio comercial

• Autor(a) principal: Junqueira, Amanda Arantes
• Data de Publicação: 2022
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
• Texto Completo: https://tede.ufrrj.br/jspui/handle/jspui/6749
• topic: Silvicultura de Esp?cies Nativas; Propriedades de Esp?cies Nativas; Madeira de Esp?cies Nativas.; Forestry of Native Species; Properties of Native Species; Wood from Native Species; Recursos Florestais e Engenharia Florestal

Efforts are currently underway to curb indiscriminate logging in natural forest areas. However, most of the actions carried out have focused on enactment of laws and regulation aimed at deterring illegal logging, while little effort has been focused on creating alternatives to meet the demand for wood from native species. Silviculture involving native species can be a sustainable alternative to satisfy this demand. Its main challenge is the lack of information regarding the species and the behavior of these species after planting. To provide information about native species, the general objective of this work was to understand the behavior of young trees under different planting conditions. For this purpose, dendrometric characteristics, log quality, sawn wood yield, physical properties, species behavior during machining and sanding, and macroscopic anatomical characteristics were evaluated. Eight species were evaluated in two distinct groups, the first composed of trees with age of 50 months old planted with spacing of 2 m x 4 m (Zeyheria tuberculosa ? ?ip?-felpudo?, Cariniana legalis ? ?jequitib?-rosa? and Cordia trichotoma ? ? louro-pardo?), while the second group consisted of trees with age of 80 months old planted with at 2 m x 2 m spacing (Astronium graveolens ? ?aroeira?, Anadenanthera peregrina ? ?angico-curtidor?, Parapiptadenia pterosperma ? ?angico- vermelho?, Handroanthus serratifolius ? ?ip?-ovo-de-macuco? and Dalbergia nigra ? ?jacarand?-cavi?na?). All species in both groups produced good log quality and lumber yield. For the first group, jequitib?-rosa presented the highest apparent density and ip?-felpudo presented the best results in the machining and sanding tests. For the second group, the species that presented the highest density was the ip?-ovo-de-macuco, and the highest stability was reported for aroeira, angico-curtidor, and jacarand?-cavi?na, while for sanding and machining the species with the best results was the angico-curtidor. Based on the data, among the species of the first group, louro-pardo is the most suitable species for commercial plantations, and angico-curtidor is the most suitable species in the second group.