info:eu-repo/semantics/article
Potencial de germinación de semillas en un bosque secundario premontano en San Pedro de Montes de Oca, Costa Rica
Potencial de germinación de semillas en un bosque secundario premontano en San Pedro de Montes de Oca, Costa Rica
Autor
Di Stéfano G., José Fco.
Chaverri, Luis G
Institución
Resumen
The seed bank of a small preserve (Premontane tropical forest) in Costa Rica, was analyzed. The area was divided into three zones, one of which was dominated by a vine (lpomoea sp.). Soil samples (10.1 cm. diam. x 12 cm deep) from each zone were planed in the greenhouse at two light intensities: total and al 50 %. Field pIots (1 m2) were also established at eaeh of the zones and analyzed a year later. Samples and plats were dominated by heroaceous speeies with few trees and a very low eorrelation with the actual vegetatíon. At 50 % light intensity, less than 11 % of lhe total individuals were present. The site with lpomoea sp. showed a strong reduction in the number of individuals: 30 to 84 % less when eompared with the other zones. The progressive elimination of lpomoea (by opening small clearings and planting native tree species) would promote vegetation development and inerease diversity. The seed bank of a small preserve (Premontane tropical forest) in Costa Rica, was analyzed. The area was divided into three zones, one of which was dominated by a vine (lpomoea sp.). Soil samples (10.1 cm. diam. x 12 cm deep) from each zone were planed in the greenhouse at two light intensities: total and al 50 %. Field pIots (1 m2) were also established at eaeh of the zones and analyzed a year later. Samples and plats were dominated by heroaceous speeies with few trees and a very low eorrelation with the actual vegetatíon. At 50 % light intensity, less than 11 % of lhe total individuals were present. The site with lpomoea sp. showed a strong reduction in the number of individuals: 30 to 84 % less when eompared with the other zones. The progressive elimination of lpomoea (by opening small clearings and planting native tree speeies) would promote vegetation development and inerease diversity.