Influence of fire on woody vegetation of savanna and forest formations in the Cerrado biome  

作　　者：Aline das Gracas Costa Fillipe Tamiozzo Pereira Torres Gumercindo Souza Lima Fabiano Rodrigues de Melo Carlos Moreira Miquelino Eleto Torres Bruno Leao Said Schettini Vicente Paulo Santana Neto AndréLuiz Lopes de Faria 

机构地区：[1]Department of Forest Engineering,Federal University of Vicosa,UFV,Vicosa,MG 36570-900,Brazil [2]Department of Geography,Federal University of Vicosa,UFV,Vicosa,MG 36570-900,Brazil

出　　处：《Journal of Forestry Research》2023年第5期1207-1216,共10页林业研究（英文版）

基　　金：Fundacao Grupo Boticário de ProtecaoàNatureza,CAPES,FAPEMIG and CNPQ。

摘　　要：Wildfires have environmental,economic,and social impacts,and can shape the landscape and benefit ecosystems such as the Cerrado.This study evaluated the diversity,similarity,and floristic and structural differences of woody savanna and forest formations of the Cerrado,when affected and not affected by fire.Twenty-eight 25-400m2 plots were randomly allocated and divided into Burnt Cerrado and Unburnt Cerrado,Burnt Forest,and Unburnt Forest,and divided into three levels of inclusion according to diameter class(smaller than 2 cm,2-5 cm and larger than5 cm).Species were identified,DBH and height measured,and phyto sociological parameters such as volume,diversity,and floristic similarity evaluated.Burnt Cerrado had lower diversity,density,and dominance at all inclusion levels compared to the Unburnt Cerrado,and showed similarities between treatments at the inclusion levels.Burnt Forest had smaller differences in diversity,density,and dominance than Unburnt Forest.Forest formation was similar at level 1 of inclusion and in the total area.However,it was dissimilar at lower levels.The lower density and diversity of species at the lowest levels of inclusion was associated with mortality from fire.

关 键 词：BIODIVERSITY Brazil Burning FLORISTIC PHYTOSOCIOLOGY 

分 类 号：S762[农业科学—森林保护学]