Method and device to raise the surface of a populating forestier terrière

摘要

P according to the invention, in order to determine the surface basal or cross section of the trunks of the shafts, which is an essential element in the evaluation of the volume of a populating forestry, it selects one or several areas of sampling, at the centre of which is placed a marker - pattern, and the diameter of the shafts of the marker with an instrument which is the combination of a caliper forestier 1 and a relascope 2 with an opening of observation 3 the magnitude of which is a function of the distance between the jaws 4 and 9. After each dose of the diameter of a shaft, it is observed, the pattern of the marker through the opening 3. In addition to the determination of the surface basal, this profile makes it possible to establish its distribution in the classes of a diameter of the shaft. / p