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Confidence limits to variables in seeds analysis of exotic forest species

Abstract:

The aim of this work is the selection of a model for estimation of carbon in Forest Type Roble-Raulí and Coigüe. The compilation of information was performed in the Malleco National Reserve. Every site was represented by a group of 5 plots (squared, sides 35m, surface 1225m2), located in a transect according to the greatest slope. The volumes of wood were estimated with and without bark of the individuals totality by means of functions for every species of the forest type in the study. The quantity of carbon stored at the shaft level of the plots was estimated by applying the universal function of carbon. In every plot the trees were assessed by a diametric class of DAP, being defined as the classes from the minimal DAP of 3 cm and with an extent of 5 cm. The models of Spurr, Meyer, Stoate, Naslund and Schumacher-Hall were adjusted accordingly. The Schumacher-Hall model presented the best adjustment according to the considered statistical indicators, besides a better residual distribution.