Please use this identifier to cite or link to this item:
Title: Diametric and spatial structure of wood species of economic importance in the Amazon
Other Titles: Estrutura diamétrica e espacial de espécies madeireiras de importância econômica na Amazônia
Authors: Vieira, Diego dos Santos
Gomes, Karla Mayara Almada
Santos, Lizandra Elizeário dos
Oliveira, Marcio Leles Romarco de
Gama, João Ricardo Vasconcellos
Mendonça, Evandro Luiz Machado
Lafetá, Bruno Oliveira
Moura, Cristiane Coelho de
Figueiredo, Axa Emanuelle Simões
Keywords: Handroanthus serratifolius
Hymenaea courbaril
Mezilaurus itauba
Ripley's K function
Issue Date: 2021
metadata.dc.publisher.journal: Scientia Forestalis/Forest Sciences
metadata.dc.relation.ispartof: Volume 49; number e3438
Abstract: The objective of this study was to evaluate the diametric structure and spatial pattern of four timber species of economic importance in the Amazon. The study was carried out in nine Work Units of 100 ha each, inserted in the Annual Production Unit n° 8 of the Forest Management Unit Samambaia, belonging to the Mixed Cooperative of the Tapajós National Forest, Belterra municipality. Data were collected through a 100% inventory, with Cartesian coordinates mapping of all species with a diameter of 1.30 m equal to or greater than 20 cm. Diametric structure of the species was obtained through cluster and discriminant analyzes. From these structures five functions of probability density (Weibull-3P, Gamma, Normal, Lognormal and Exponential) were tested. The fit was assessed using the Kolmogorov-Smirnov test, 95% probability and histograms. Spatial pattern was obtained through Ripley's K-function. The species showed a diametric distribution tending to normal, which suggests regeneration problems, probably caused by low seed production, unfavorable edapho-climatic conditions or reduction of pollinating fauna. Hymenaea courbaril presented a random spatial pattern, while Manilkara huberi and Handroanthus serratifolius exhibited aggregate patterns. Mezilaurus itauba presented a pattern varying in relation to distance, that is, random for distances less than ± 100 m, aggregated up to approximately 825 m and random up to 1,500 m. Probably species dispersal syndromes and soil and climatic conditions of PAU affected the results reported in this study. © 2021 University of Sao Paolo. All rights reserved.
metadata.dc.identifier.doi: 10.18671/SCIFOR.V49N129.21
Appears in Collections:Artigos

Files in This Item:
File Description SizeFormat 
Diametric and.pdf62,29 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons