5 documents found, page 1 of 1
Methods for overcoming seed dormancy of Schizolobium parahyba var. Amazonicum
Dionisio, Luiz Fernandes Silva; Soares, Fabiano Lago; Milhomem, Camila de Almeida; Rodrigues, Richard Pinheiro; Lozano-Bardales, Ricardo ManuelSchizolobium parahyba var. amazonicum is a tree species of great commercial interest, however, its seeds present tegumentary dormancy. Thus, the objective of this work was to evaluate the efficiency of different scarification methods to suppress seeds dormancy of S. parahyba. The treatments consisted in the following scarification methods: Grain 400 mechanical sandpaper (Sandpaper); Water at 100°C for 1 minute ...
Modelos lineares generalizados na predição do volume de madeira de espécies com...
Rodrigues, Richard PinheiroOrientador: Dr. Carlos Roberto Sanquetta; Trabalho de Conclusão de Curso (Especialização) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Curso de Especialização em Manejo Florestal de Precisão.; Resumo: O desenvolvimento de equações para estimar o volume de árvores comerciais é de suma importância para a conservação de florestas, para a tomada de decisões no manejo florestal, monitoramento, fisca...
Hypsometric models for a clonal plantation of Tectona grandis Linn F. subjected...
dos Santos, Mario Lima; Rodrigues, Richard Pinheiro; Roque Lima, Michael Douglas; Rocha Martins, Walmer Bruno; Costa, Beatriz CordeiroAt a moment when the importance of planted forests in the Amazon region is increasing, hypsometric models become highly relevant tools as they allow monitoring of and planning for tree plantations in a way that is practical and economic for the producer. Thus, the objective of the current study was to select and adjust a model of hypsometric relationships for a clonal plantation of Tectona grandis Linn F., subm...
Soil seed banks in successional stages of forest ecosystems in the Belém, Pará,...
Souza, Fernanda Pantoja; Rocha Martins, Walmer Bruno; Rodrigues, Richard Pinheiro; Sales de Andrade, Vanda Maria; Arraes Araujo, Nayara NazareThe seed bank is essential for the initiation of natural forest regeneration, especially in ecosystems in the early stages of development, where there have been anthropogenic or natural disturbances. The objective of the current study was to evaluate seed bank dynamics in three forest ecosystems, two in Utinga State Park (PEUt) and one on the Federal Rural University of Amazonia (UFRA) campus, both in Belém, Pa...
Litterfall, litter stock and water holding capacity in post-mining forest resto...
Martins, Walter Bruno Rocha; Lobo do Vale, Raquel; Ferreira, Gracialda Costa; Andrade, Vanda Maria Sales; Dionísio, Luiz Fernandes SilvaThe objective of this study was to evaluate the litterfall deposition, the decomposition rate (KL) and the water holding capacity (WHC) of litter stored in the soil in two areas degraded by mining submitted to different methods of forest restoration: induction of natural regeneration (NR) and planting seedlings of native forest species (PS) with a forest fragment (FF) used as reference. The litterfall depositio...