Authors
Abstract
The objective of this study is to evaluate the changes in the floristic composition in the forest Las Mercedes after seven years of implementing an ecological restoration object. Materials and methods: 14 parcels of 50 m x 20 m were stablished permanently in which it was registered all of the vegetable individuals with a DAP ≥ 2 cm. It was analyzed the richness, diversity, structure and composition of the vegetation. Results: We identified 3344 individuals that belonged to 38 botanical families, 57 genders and 71 species, where the families more represented are Solanaceae and Compositae. The species with a greater number of individuals registered are Solanum oblongifolium, Smallanthus pyramidalis and Boconia frutescens. However, the specie with a higher importance value index is Vallea stipularis followed by Solanum oblonggifolium. In regards to the vertical structure, the greater number of individuals registered are with heights lower to five meters and a DAP lower than 10 cm. The diversity was calculated with the Shannon 2,25 (˂ 3) index, that indicate a medium diversity, and Simpson 0.7 (close to one) that show a high deiversity and homogenic distribution with the predominance of two species. The Bray-Curtis similarity test shows four groups of parcels corresponding to the different coverage present in the forest. Conclusions: The relict shows and improvement in the floristic composition indicating and advance int the recovery of its natural dynamics by decreasing the dominance of the Rosaceae family and, specially, the presence of the Rubus gender. However, control activities need to be continued on this gender since its one of the opportunist species that affect the forest canopy and prevents the expression of the seed bank and the shoot growth.
Keywords:
References
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