Determinación del factor de forma de la especie Pinus radiata D. Don (Pino) en lkos bosques comunitarios de Cochaloma, Galte Laime y Guazán en el cantón Guamote, provincia de Chimborazo.

Abstract

This research proposes: form factor of the species Pinus radiata D. in the community forests of Cochaloma, Galte Laime and Guazán in the Guamote canton, Chimborazo province; with a random sample of fifty trees, recording DBH data (Diameter at breast height), the total height and diameter at each meter of the tree starting from the base to its total height. To calculate the form factor two methodologies were applied, as results the following values were determined. For "Smalian" methodology; 0.50 for the Cochaloma sector; 0.49 for Galte Laime sector and 0.47 for Guazán sector; consequently for Schiffel methodology the following values were given; 0.57 for Cochaloma; 0.55 for Galte laime and 0.49 for the Guazán forest, according to the comparisons established by Ministerio de Agricultura y Ganaderia with form factor of 0.70 so there is a meaningful difference; caIculating the real volume the form factor according Smalian methodology was applied; the volume calculation was also added using tables from an entry by the authors Kopezky, Berkout and Meyer and from the double entry authors Suprr (Combined Var), Ogaya and logarithmic equation; from six models used, the Berkout model shows a greater reliabilíty, possibly due to the intervention of the DBH because those are models of an input (DBH and variables), on the other hand the double entry models do not present similarity to the real volume . The plantations with similar characteristics to the sample could use tables of volume of one entrance, which will provide the appraisal.

Keywords: FORM FACTOR - FOREST SPECIES - COMMUNITY FORESTS.