¿Afectou o lume á estrutura e á diversidade vexetal das fragas do Parque Natural "Fragas do Eume"?

Abstract

Forest fires are a serious problem in terms of loss of plant community diversity, but little is known about the changes that occur in temperate deciduous forests. The aim of this work was to determine the fire effects on the diversity and structure of the oak woodland communities in the Natural Park Fragas do Eume, one year after the last fire that occurred in March 2012. For this, in 16 control plots in undamaged forests and 16 plots in burned forests, structural variables of vegetation (spermatophyte and pteridophyte species) were studied, subsequently obtaining various measures of diversity, and species groups according to ecological characteristics. The results show that there were no major changes in relation to plant diversity between control and burned samples (none invasive species are detected), but there were significant changes in several structural variables. The vegetation of the mixed forest ecosystem Natural Park Fragas do Eume recovered quickly after the fire, due to its high resilience and also the time of the year when the fire happened.