Resumo

DIAZ-C., Sebastián Emilio; LONDONO-HERNANDEZ, Derly Johana  e  ARIZA-CORTES, William. Ecological analysis of communities on the tree vegetation of Chicaque Park, Cundinamarca. Bol. Cient. Mus. Hist. Nat. Univ. Caldas [online]. 2023, vol.27, n.2, pp.49-69.  Epub 08-Abr-2024. ISSN 0123-3068.  https://doi.org/10.17151/bccm.2023.27.2.3.

Andean forests are fundamental areas for the provision of ecosystem services -ES- of water and climate regulation through carbon sequestration. However, anthropic dynamics have brought their coverage to a state of transformation greater than 70%. In this context, it is pertinent to characterize the remaining remnants at a multidimensional level of forest diversity, and therefore, an ecological analysis of the tree vegetation of the Chicaque natural park was carried out. A simple random sampling of 11 plots of 0,1 hectares -ha- (10 x 100 m) was carried out for this purpose, collecting information on individuals with DBH ≥ 10 cm. An average value of 17 species and 58 individuals was found in 0.1 ha, at a coefficient of variation of 36%. A cumulative of 72 species per hectare is estimated. Rubiaceae, Euphorbiaceae and Lauraceae are the families with the greatest richness. The average canopy is between 12 and 15 m. The importance and dominance are mainly concentrated in C. angustifolia, P. excelsa and M. symplocoidea. Amounts of 20.62 ± 4.94 Mg 0.1ha-1 of above ground biomass -AGB-, 10.31 ± 2.47 Mg 0.1 ha-1 of carbon and 37.84 ± 9.06 Mg 0.1 ha-1 of CO2e were estimated at a sampling error of 23.94%. The species that sequester the greatest amount of carbon in their AGB are C. angustifolia, Q. humboldtii and M. symplocoidea. The estimated amounts (206.22 ± 49.37 Mg ha-1) coincide with the average levels of the Andean forests of northern South America. The contribution to habitat ES is recognized by conserving the genetic pool of 2 species in threat category (Q. humboldtii, C. montana). Tree vegetation presents medium alpha diversity and ecological conditions of late-developing secondary forest.

Palavras-chave : Andean Forest; forest diversity; ecosystem services; protected areas.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )