Inventario forestal del bosque nativo El Triunfo parroquia Angamarca perteneciente al cantón Pujilí, provincia Cotopaxi.

Abstract

The forest catalogue of the native forest El Triunfo, Angamarca parish, was carried out, determining the horizontal and vertical structure, and estimating the diversity indexes and the forest value of the species. The methodology consisted of delimiting the study area by means of a preliminary tour of the forest, with the help of a GPS, a three-dimensional map of the area was constructed in ArcGis; based on the map we carry on to applying the Gentry methodology, where five temporary transects were established with intervals of 50m from each other, each transect was elaborated in a rectangular way with the dimensions of 50m x 4m (200m2 ) giving a total of 1000m2 of sample area; in each transect measured with a tape measure the forest specimens with a DCH (diameter at chest height 1. 30m) greater than or equal to 5cm and their heights were determined with a hypsometer; samples of each species were taken for later identification in the herbarium; with the identified species, their horizontal and vertical structure was determined, as well as their diversity indexes, Simpson's and Shannon's, the importance value index and forest value. Forty-eight individuals distributed in 10 species were recorded, corresponding to the families Chysobalanacea, Cunoniaceae and Laminacea; in the horizontal structure the greatest number of individuals belonged to class I (8-17cm) of DCH, in the vertical structure the greatest number of individuals was in class II with 45.83%, the species Weinmannia pinnata had the highest index of forest value (35.84%). The diversity indexes showed that the forest has a medium diversity; it is recommended to carry out a management plan which helps to increase the montane forests´ information.