Taquara-lixa (Merostachys skvortzovii SEND.) em diferentes estágios sucessionais na floresta ombrófila mista

Abstract

This research presents an approach on the population structure of Merostachys skvortzovii (taquara-lixa) in three forest fragments in the municipality of Bituruna-PR, focusing on its impacts on the tree population due to the local conditions and influence on the vegetation at different stages. of ecological succession. The study consisted of field research with the collection of data on soil cover, density and number of individuals, in order to discuss the relationship between bamboo populations and the environment. Sixty-eight sample plots were analyzed, totaling 800m2 in the initial stage, 2,300m² in the middle stage and 300m² in the advanced stage of succession. 16 plots were classified as in the initial stage of succession, 46 plots in the middle stage and 6 sampling units were classified as in the advanced stage. It was found that in relation to the number of bamboos compared to the number of other species, this life form has dominance in early and middle stages. Apparently, the species influences the regeneration of tree species and unknown ecological factors make the bamboo to be considered the ecological group of "healing" plants, populating areas where natural conditions are not favorable to the development of tree species for a climax community. Long-term permanent plots are recommended to understand the real role of bamboo in forests.Keywords: forest regeneration, ecological succession.