Compactação do solo após tráfego de máquinas em operações de colheita florestal
This work aims to evaluate the soil compaction caused by the traffic of machines in Pinus taeda harvesting operations. The study was carried out in the operational areas of harvesting of wood belonging to Araupel S / A, located in the municipality of Quedas do Iguaçu, Paraná. The experimental design...
| Autor principal: | Rodrigues, Diego |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/10920 |
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| Resumo: |
This work aims to evaluate the soil compaction caused by the traffic of machines in Pinus taeda harvesting operations. The study was carried out in the operational areas of harvesting of wood belonging to Araupel S / A, located in the municipality of Quedas do Iguaçu, Paraná. The experimental design was completely randomized. The soil sampling procedure was carried out on the line of wood cutting and extraction machines, according to the following treatments: T0 (Without passing machines with the standing forest), T1 (1 pass of Havester + 1 (past Havester + 3 passed from Forwarder), T3 (passed from Havester + 7 passed from Forwarder), T4-1 passed from Havester + 8 passed from Forwarder). For each treatment, four replications were performed, distributed in the traffic lines of the machines (figure 9). A total of 160 samples were collected, 32 of which were treated at depths of 0-10 cm, 10-20 cm, 20-30 cm, 30-40 cm in volumetric cylinders with 3.0 cm in height and 6.0 cm in diameter, with the aid of an extractor for withdrawal of samples. The compaction evaluation was evaluated based on the following soil physical parameters: Density (Ds), total porosity (Pt), soil penetration resistance (RP) and saturated hydraulic conductivity. For the data obtained in the evaluations of soil physical parameters were submitted to statistical analysis as analysis of variance and tests of comparison of means from the Tukey test. Based on the results obtained, it was observed that there was a greater increase in soil density with the increase in the number of passes of the Forwarder, and all the traffic situations of the machines studied caused an increase in the mechanical resistance of the soil to the penetration in the superficial layer, being aggravated in T3. The saturated hydraulic conductivity was sensitive to respond to the effects of compaction with the highest values of water percolation in the Treatment without machine traffic and occurring less infiltration in the superficial layer of 0-10cm. |
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