Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67035
Type: Artigo de periódico
Title: Forest restoration with Araucaria angustifolia (Bertol.) Kuntze on Campos do Jordao state park, SP: fire effects on tree and shrub structure
Author: Ribeiro, TM
Martins, SV
Ivanauskas, NM
Polisel, RT
dos Santos, RLR
Abstract: Restoration actions aimed at Mixed Ombrophilous Forests are limited due to the scarce knowledge about composition and structure of these communities on different successional stages, and also the effects of frequent disturbances on its dynamics, such as fire. The present work aimed at evaluating the effect of an accidental fire on the horizontal, vertical and diametric structure of an Araucaria angustifolia planted forest, located on Campos do Jordao State Park, SP, nine years after the disturbance. This study also intends to appraise the potential of these forests on inducing the secondary succession. Two Araucaria angustifolia forests were selected, with similar ages and environmental conditions, called Forests RI and Rh. On RI, there's no account of fire since its planting, in 1959 (control). RII, which was planted in 1958, was affected by an accidental fire in July 2001. During the upper strata survey (circumference at breast height (CBH) >= 15cm), 17 and 8 permanent plots of 10x20m were established on forests RI and RII, respectively. In each one of these plots five sub-plots of 1x1m were randomly chosen, in order to survey the lower strata (total height >= 30cm and CBH < 15cm). In forest RI, 836 trees and shrubs were surveyed, while on forest Rh I 175 individuals were sampled. Forest RI presented significantly higher values than II for density on both strata and dominance on upper strata (absolute totals). The diametric structure follows an inverted J-pattern in both areas. Nevertheless, the fire seems to significantly have reduced the number of individuals of the first diameter classes. Forest RII seems to still express the effect of burning, which was more severe in the lower strata; in case the above hypothesis is correct. However, due to favorable landscape conditions, we hope that both forests continue their natural succession, resembling the surrounding forest matrix in the long term.
Subject: Brazilian Pine forest
fire ecology
ecological restoration
phytosociology
Country: Brasil
Editor: Ipef-inst Pesquisas Estudos Florestais
Rights: fechado
Date Issue: 2012
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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