Comparaison entre des prismes de différents facteurs de surface terrière pour établir la structure des diamètres d'un peuplement inéquienne

A complete forest survey was conducted on an 18-ha unevenaged maple stand to derive its diameter structure. Seventy-two sampling points were also established in the same area using prisms of basal area factor of 2, 3, 4 and 5 m 2 /ha. Simulation of sampling was performed by varying number and dispersion of points. Two sampling points per hectare with a prism of basal area factor of 2 m 2 /ha gave the best results in representing this entire stand at a probability level of 90%, with a confidence level of α = 0.05. Sampling units have to be scattered as much as possible in the forest area to be surveyed.