Evaluación del grado de fragmentación de un área de bosque andino, predio cascadas del pucará, municipio de Quetame-Cundinamarca

Abstract

This research was carried out in the sites waterfalls of Pucará, Municipality of Quetame Cundinamarca, in which the degree of fragmentation in this native forest was evaluated. Initially, the landscape metrics were used through the photographic delimitation of the IGAC year 2009, Sasplanet year 2014 and Google Earth year 2018, in such a way that the loss of coverage was identified in three temporalities, due to indiscriminate deforestation and the inclusion of species invasive in this strategic ecosystem, the Arcgis program was used, through which information processing was done. Three fragments of forest were identified in the property, allowing to determine that during the last nine years it has been losing 2 ha of forest every four to five years, that is to say of 14.75 ha in the year 2009 step to 10.43 ha in the year 2018. In these identified fragments, a total of 24 transects were performed, with a measurement of 50 x 2 m, a procedure established by the manual of methods for the development of biodiversity inventories (Villareal, et al., 2004), with which it was possible to do the vegetation survey (composition of the species) and diversity changeable. The results show a statistically significant variability, which indicates that the species present in the ecosystem can be affected by deforestation and fragmentation of the study area.