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Diametric growth and time of passage of Minquartia guianensis after logging at Tapajós National Forest, Brazil PFB - Pesquisa Florestal Brasileira
Andrade, Cinthia Grazielle Carvalho; da Silva, Márcio Lopes; Torres, Carlos Moreira Miquelino Eleto; Ruschel, Ademir Roberto; da Silva, Liniker Fernandes; de Andrade, Dárlison Fernandes Carvalho; Reis, Leonardo Pequeno.
Minquartia guianensis Aubl. (acariquara) occurs at Acre, Amazonas, Roraima, Pará and Amapá states, with a great market demand and utility in the Amazon region. It is used mainly in civil construction due to its high durability and singular beauty, because of reentrances in its trunk, resulting in high market value. Most of used trees present small diameters, what is a critical factor for their management and commercialization. Thus, the objective of this study was to evaluate M. guianensis diametric growth and cutting cycle through the analysis of time of passage among diameter classes, 31 years after logging, at Tapajós National Forest, Pará State, Brazil. Five treatments were established and in each one 12 permanent sample plots of 0.25 ha were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Productivity; Selective felling; Eastern Amazonia Recursos Florestais; Colheita Florestal; Manejo de Florestas Nativas Produtividade; Amazônia oriental; Corte de seleção.
Ano: 2017 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1406
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Influence of anthropic impacts on remnants of Ombrophilous Mixed Forest in Santa Catarina State, Brazil PFB - Pesquisa Florestal Brasileira
Liebsch, Dieter; Maçaneiro, João Paulo de; Marcon, Amanda Koche; Galvão, Franklin.
Selective cutting and pastures are common activities in the Ombrophilous Mixed Forest, which is part of the Atlantic Rain Forest Biome. Our goal was to relate floristic composition and structure unit with its past use. Adult and juvenile wood species of twelve forest fragments were evaluated in Santa Catarina State. Fragments with less anthropic impacts showed greater richness and diameter range, and lower density and frequency of multiple stems in the adult stratum, although basal area did not differ among fragments. Fragments with higher historical impact showed greater richness and lower density of juvenile stratum. The results showed that human impact on wood species community was so great that even after some decades floristic composition and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Selective felling; Araucaria angustifolia; Ocotea porosa Engenharia Florestal; Conservação Biodiversidade Corte seletivo; Araucaria angustifólia; Ocotea porosa.
Ano: 2016 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1213
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