AVALIAÇÃO DE TÉCNICAS PARA INDUÇÃO DA REGENERAÇÃO NATURAL EM ÁREA DE PRESERVAÇÃO PERMANENTE SOB USO ANTERIOR DO SOLO COM Pinus elliottii

Evaluation of techniques for induction of regenerat ion in permanent preservation areas under former use of the soil with Pinus elliottii. This work aimed at evaluating the effects of seven techniques for natural regenerative induction in an area of perman ent preservation, after the final cut of Pinus elliottii stand. The experiment was installed on a farm belo nging to Renova Forest Co., in the municipality of Rio Negrinho, State of Santa Catari na on December 2004. Seven treatments were installed using techniques to speed up the forest v egetation restoration. On July 2008 tree sampling was done in the areas corresponding to the seven tr eatments, with measurement of all individuals higher than 0.20 m. Evaluated aspects were the hori zontal structure, richness, diversity, participatio n and distribution of ecological groups of heights. Solanum variabile, Uncinela Baccharis and Eupatorium compressun were the species of higher frequency, density and size in most treatments. The application of seed rain, soil transposition an d the installation of perches resulted in higher pl ant densities. The richness of species and diversity we re higher in treatments with enrichment planting, application of seed rain and installation of artifi cial perches. The density, diversity and species richness variables have been considered more approp riate for the evaluation of ecological restoration.