Abstract

GUTIERREZ ACEVEDO, Gilma Elizabeth; CORTES PEREZ, Francisco  and  GOMEZ ALBARRAN, Nydia Liseth. Compost as a means for the ecological succession in an area affected by opencast mining in the La Vega river basin, Tunja, Boyacá. Colomb. for. [online]. 2015, vol.18, n.2, pp.241-254. ISSN 0120-0739.  https://doi.org/10.14483/udistrital.jour.colomb.for.2015.2.a05.

The application of compost to promote ecological succession in an area affected by opencast mining in the La Vega river basin was studied. Three treatment concentrations were established in plots of 25 m² in a completely randomized experimental design, using sterile deposit and compost in the following ratios; T₁: 8:1; T₂: 4:1; T₃: 2:1 and a control (T₄, no compost). The bio-diversification in every plot was evaluated during a nine month period. Shannon, Simpson and Species Richness diversity indices were calculated. Repeated measurements of the principle components using ANOVA comparing the treatment to the control were analyzed. Fifteen species were recorded, five of them in Asteraceae. The variance analysis showed that there were no significant differences (p=0.24) regarding coverage. With respect to height (p=0.0001), T₃ showed the best response in terms of a higher species richness and diversity when compared with the other treatments or the control.

Keywords : vegetation; restoration ecology; organic amendment; ecosystem restoration.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )