Comparativo del crecimiento dasometrico en dos plantaciones de Pinus radiata D. Don ubicadas en las parroquias Lican y Calpi de la provincia de Chimborazo.

Abstract

The aim of the research was to compare the dasometric and edaphic growth in two plantations of Pinus radiata D. Don located in the Licán and Calpi parishes, province of Chimborazo. For this purpose, first a tour and reconnaissance of the two plantations under study was made, an inventory was carried out in which a systematic non-aligned sampling was implemented with circular plots of an initial radius of 11.23 m covering an area of 400 m2, 4 plots were installed for plantation A and 4 plots in plantation B. Within each sampling unit, data were collected for quantitative variables such as: DBH (diameter at breast height), total height, commercial height and crown diameter, to evaluate the physicochemical properties 4 sampling points were selected to perform the calicatas distributed in the two plantations, Two points were selected in each plantation at two depths with ranges of 0-30 cm and 30-100 cm. A kilogram of sample was collected for each depth and analyzed in the soil laboratory of the FRN of the ESPOCH to determine its color, consistency, real density, organic matter, texture, electrical conductivity and chemical elements. The quantitative variables of plantation A, obtained averages of diameter at breast height of 16 cm, commercial height 10.02 m, and average total volume of 265.63 m3, plantation B diameter at breast height of 14 cm, commercial height 3.48 m, and average total volume of 155 m3, the chemical physical parameters obtained low values. It was concluded that the two plantations obtained low values of growth and productivity, so it was recommended to carry out silvicultural activities to improve the production of the plantations.