Abstract
Abstract This work aimed to evaluate the monthly growth rate of 100 trees spread in different diametric classes and ecological groups of a secondary forest in the municipality of Igarape-Acu, Para, Brazil. These were selected randomly from 30 permanent plots and classified into 5 diametrical classes and separated into two ecological groups: Pioneers and Non-Pioneers. The monthly periodic increment (MPI) in diameter was measured for 11 months by means of diametric bands using digital calipers. The MPI means were evaluated by an analysis of variance (ANOVA) and Tukey’s mean comparison test. Individuals from both ecological groups had similar increments in the DBH IV diameter class and different in the others. There were mean increments in the diametric classes that did not differ within the ecological groups. The trees analyzed differed in the diametric growth rate according to the diametric classes, ecological groups and the month of analysis.
Highlights
The secondary forests of northeast Pará in Brazil emerge after the replacement of the original forest with new vegetation which, in large part, is the result of anthropic changes in the natural environment
This work aimed to evaluate the monthly growth rate of 100 trees spread in different diametric classes and ecological groups of a secondary forest in the municipality of Igarapé-Açu, Pará, Brazil
In northeastern Pará, the appearance of secondary forests is related to the historical occupation of soils that were suitable for agricultural activities, which provided a favorable environment for their regeneration (Ferreira, 2008)
Summary
The secondary forests of northeast Pará in Brazil emerge after the replacement of the original forest with new vegetation which, in large part, is the result of anthropic changes in the natural environment. Schöngart (2008) and Leoni et al (2011) suggest that information about this variable is important to obtain the growth rate of species and to appropriately manage them For both planted and native forests, tree and stand growth is obtained through permanent plots measurements and remeasurements (Encinas et al, 2005). Among the advantages of using dendrometric bands are ease of installation and reading, low cost, and that they do not cause any damage to the tree stem (Keeland & Sharitz, 1993) In this context, growth monitoring is critical to understand the growth dynamics of secondary forests and the use of dendrometer bands can enable obtaining responses over short periods. This paper sought to investigate the growth rate of species in different diametric classes, ecological groups, and period of the year in a secondary forest in northeastern Pará
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
