Dispersión espacial del arbolado en una cuenca forestal de Tapalpa, Jalisco

Abstract

The management of the natural forest represents fundamental ecological, economic and social importance to the residents of theTapalpa mountain, Jalisco. For the best conservation, use and improvement of this forest resource, it seeks to deepen the knowledgeabout the behavior of the structural dynamics of forest masses. The present investigation was carried out through the informationtaken in 71 plots of a systematic sampling, carried out in small watershed of 912 hectares. The objetive was to describe thehorizontal structure, by exploring the pattern of the spatial dispersion of the trees and the tree density of the different stages ofdevelopment, from the youngest to the mature. The Clark and Evans index (I), based on the relationship between the tree-treedistance, was applied in three exercises: general, real and ideal. In the first, by providing a wide range of density, it was posible toobtain the three basic forms of dispersion: random, aggregate and regular. In the second, the aggregate dispersion predominated(96%) as it was the most common in nature. And, the third, based on a proposed density rate, aggregated dispersion also prevailed,which is why it is considered an appropiated perspective to designate silvicultural practices on thinning and regeneration cuts. In anycase, during forest management it is convenient to maintain the same distintive features of the forest, ensuring the spatial dispersionof the trees with Ivalues between 1 and 2.15 for every and each one of the development stages.