Controle mecânico de espécies exóticas arbóreas em área protegida da Mata Atlântica
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Data
2025-11-26
Autores
Santos, Amanda Magda Almeida
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Universidade Federal do Espírito Santo
Resumo
Biological invasions are among the main drivers of environmental transformation on a global scale, threatening ecosystems such as the Atlantic Forest, reducing biodiversity, altering ecosystem processes, and generating impacts. The control of exotic tree species in Protected Areas can be efficiently conducted using forest operations techniques. This study aimed to analyze the technical and operational aspects of mechanical control of exotic trees through chainsaw felling in a Protected Area of the Atlantic Forest, considering productivity, quality, costs, and environmental impacts resulting from the operation. The results indicated an effective productivity of 4.93 m³/h, with 22.84% productive time and 77.16% non-productive time. A significant relationship was observed between diameter at breast height (DBH) and cutting time, indicating that trees with larger DBH required more operational time. The quality in terms of technical criteria for tree felling was assessed as 60% non-compliant with the directed felling method. The total operational cost of chainsaw cutting was R$ 304.40 per effective hour, resulting in an average cost of R$ 61.76 per cubic meter, with operational labor costs accounting for 46.93% of the total costs. The main damages observed during the operations were breakage, toppling, and crushing of native species, canopy opening, soil exposure, and wildlife disturbance. The results show that technical training and procedural standardization are essential for the sustainability of mechanical control of exotic tree species in the Pacotuba National Forest, as they can reduce costs, increase productivity, and minimize environmental impacts
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Operações florestais , Custos operacionais , Qualidade operacional , Impactos ambientais , Corte semimecanizado , Floresta tropical , Plantas exóticas , Mata Atlântica , Forest operations , Operational costs , Operational quality , Environmental impacts , Semi-mechanized felling , Tropical forest , Exotic plants , Mata Atlântica (Brazil)