STUDY ON NATURAL REGENERATION, SEED BANK AND SEED RAIN IN THE GENETIC RESERVE FOREST OF CAÇADOR, SC

• Autor(a) principal: Caldato, Silvana Lucia
• Data de Publicação: 1996
• Outros Autores: Floss, Paulo Alfonso, Croce, Dorli Mário Da, Longhi, Solon Jonas
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/323
• topic: Natural regeneration; Seed bank; Araucaria Forest.

The study was made in the Genetic Reserve Forest of Caçador, in the State of Santa Catarina, Brazil. In the study of natural regeneration were established 10 plots with an area of 250 sq m (25m x 10m). Inside the plots, were collected a layer of soil with foliage up to 3 cm of depth in the 40 samples with an area of 0,5m x 0,5m to the analyse of the seed bank in the soil. Moreover, 20 traps  with an area of 0,5m x 0,5m were established to evaluate seed rain. The results obtained showed that although  Araucaria angustifolia was the dominant species of the canopy layer, it did not appear  in  the   natural  regeneration  layer. On  the other hand, Mimosa scabrella was the most important tree species found in the seed bank in the soil. The relation between the three parameters evaluated suggested an irregular distribution of the species in the study site.