Gestão e aproveitamento de desperdícios na exploração florestal- estudo de caso Empresa Colosso Lda.

Abstract

The present work has as one of the specific objectives to present the best way to manage waste in forestry. The study of management and use of waste in forestry for various purposes was carried out at the company Colosso Lda., Located between the districts of Nicoadala and Mopeia, in the Province of Zambézia. The data were obtained from 41 tree tops of 7 species previously explored and selected at random, distributed in 7 classes of diameters (below 6 cm; 6 to 20 cm; 20 to 30 cm; 30 to 40 cm; 40 to 50 cm; 50 to 60 cm and above 60 cm). Volumetric quantification of crown and stump waste was made, where the diameters and length of branches of all sizes were measured for different uses of the same and the stump removed at height 1 (h1) and height 2 (h2), having made the average of the heights and the diameter of the stump. For better analysis, the diameter classes were divided into categories of a1 (20 to 60 cm), a2 (<20) and a3 (waste from the high stump). After analyzing the data, the results of the commercially usable volume values ​​for sawn wood were, on average, 0.52 m3 found in the species Brachystega speciformes, and the one with the highest standard deviation and variation coefficient was the species Amblygonocarpus andongensis, of 0.196 m3 and 69.5%, respectively. For volume not usable for sawn wood, that is, below 20 cm was the species Bridela micrantha, with an average volume of 0.217 m3, finally the results of the waste of the stump with 0.356 m3 found in the species Brachystegia speciformes were obtained. The percentage of waste volume varies from 6.36% to 41.57% for category a1, 8.1% to 20.58% for category a2 and 2.26% to 39.38% for category a3. For good waste management, partnerships can be made with the community, associations as well as cooperatives so that they collect the material after forestry. Based on the utilization, waste with diameters below 20 cm can be used for domestic, industrial use, transformations in handicrafts, precarious construction material, bar, waste with diameters above 20 cm can be used for sawn wood, handicrafts (TRADUÇÃO NOSSA)