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Acta Biológica Colombiana

versión impresa ISSN 0120-548X

Resumen

ALANIS-RODRIGUEZ, EDUARDO et al. Analysis of the Arboreal Diversity in Restaurated After-Fire Areasin the Ecological Park Chipinque, Mexico. Acta biol.Colomb. [online]. 2010, vol.15, n.2, pp.309-324. ISSN 0120-548X.

This research assessed the diversity of the arboreal component of areas, with and without ecological restoration, after being impacted by a wildfire in the Ecological Park Chipinque (PECh), in Northeastern Mexico. Two areas were analyzed, one facing Northeast and the other Northwest in the Sierra Madre Oriental, in each facing were assessed two areas, one of them where there were not practices of ecological restoration (control) and other one in which these practices were carried out. Within each area, four sites were selected. Plots were 10 m x 10 m, in a mixed ecosystem pine-oak, ranging in height from 1000 to 1150 m above sea level; all trees with a diameter equal to 0.10 m ≥1.5 cm were assessed, and were obtained parameters of height (h) and diameter (d0.10). The diversity Αwas estimated using the Shannon index (H’) and Margalef (Da) and an analysis of Bray-Curtis was used to determine the diversity Βaccording to the similarity-dissimilarity between the ecosystems of both exposures. To evaluate the vertical distribution of species Pretzsch index was estimated, and species were distributed in different zones of altitude. The family Fagaceae was the predominant group in both areas. According to the analysis of diversity, sampled areas showed a decrease on richness and diversity. The species with the highest ecological weight in both aspects (NE and NO) and in both treatments (with and without restoration) was Quercus rysophylla; while Pinus pseudostrobus was the second specie in the restored areas due to the re-vegetation practices.

Palabras clave : biodiversity; mixed ecosystem; exposure.

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