Abstract
ABSTRACT Soil seed banks are the first source of seeds for regeneration after a forest’s disturbance. The present study aims to verify the regeneration potential of the soil seed bank of a Seasonal Semidecidual Forest remnant. The study was carried out at Canchim Farm, CPPSE - Embrapa (São Paulo State, Brazil). Soil samples were collected from the fragment in both the wet and dry seasons. An average of 307.8 seedlings/m2 was found in the dry season and an average of 144 seedlings/m2 was found in the dry station. Twenty six species of trees with viable seeds were found in the soil, mostly pioneer species; among them, Cecropia glaziovi Snethlage was the most abundant pioneer species. The soil seed bank can be considered of great potential for regeneration due to the presence of pioneers, secondary and later species.RESUMO Após qualquer distúrbio na floresta a principal fonte de sementes para recolonização da área são as sementes presentes no solo. O presente trabalho analisa a existência de potencial de regeneração a partir do banco de sementes do solo de um fragmento de Floresta Estacional Semidecidual. O estudo foi realizado na Fazenda Canchim, CPPSE - Embrapa, São Carlos, São Paulo. Foram coletadas 50 amostras da superfície do solo com cinco centímetros de profundidade no interior do fragmento no final das estações chuvosa e seca. Encontraram-se valores de densidade de 307,8 sementes germinadas/m2 na estação chuvosa e 144 sementes germinadas/m2 na estação seca. Ocorreram vinte e seis espécies arbóreas com sementes viáveis no solo, a maioria de pioneiras, entre estas, Cecropia glaziovi Snethlage foi a mais abundante. O banco de sementes do solo demonstrou potencial de regeneração devido à presença das espécies pioneiras, secundárias e tardias.
Cite
CITATION STYLE
Soares, J. J., & Laurito, S. F. (2018). SEASONAL SEMIDECIDUAL FOREST FRAGMENT SOIL SEED BANK AND IT’S RELATIONSHIP WITH CONSERVATION. Revista Árvore, 41(3). https://doi.org/10.1590/1806-90882017000300011
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