Análise de técnicas de combate a incêndios em plantios de eucalipto

• Autor(a) principal: Canzian, Weslen Pintor
• Data de Publicação: 2016
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Espírito Santo (riUfes)
• Texto Completo: http://repositorio.ufes.br/handle/10/7685
• topic: Forest fires; Carbonization; Planted forests; Recursos Florestais e Engenharia Florestal; Incêndios florestais; Carbonização; Florestas - Plantio; 630

This study aimed to evaluate combat mechanics and fire management techniques in planted forests, specifically evaluated the efficiency of water use in different fighting forest fires systems, the efficiency of two of fighting forest fires systems, with different methods of elimination of fire and different managements of the understory vegetation in eucalyptus plantations with 6 years of age and the effects of vegetation height of the carbonization time planted forests. The evaluation of the efficiency of water use in different fighting forest fires systems the company uses has been measuring from the volume of water carrying capacity of the tanks, foam flow during combat, use of time, the power of transformation volume of water in foam volume and total volume available. Data were submitted to analysis of variance and means were compared by Tukey test. The evaluation methods and combat techniques on the effect of management of vegetation understory of eucalyptus plantations was conducted at a eucalyptus plot of 6 years old. 40 plots of 9 x 21 m, which evaluated the effectiveness of treatments to eliminate fire and analysis on the time of completion of the wet line and the time of the direct combat were assembled. Data were submitted to analysis of variance and means were compared by Tukey test. The analysis between the heights of the forest understory with the height of charring the bark of trees in stands of Eucalyptus was carried out to study the correlation of Pearson. records of occurrences of forest fires of the company were used between the months of October 2014 to March 2015, totaling 1 094 records. Among the combat systems analyzed, Caf's with the foam application technology showed the best results, and the determining factor for its highlight was the ability to change the volume of water in foam volume. In the evaluation of the effects of the methods and control techniques on the effect of sub-wood time, it may be noted that both combat methods presented satisfactory results, since, in all cases able to combat and prevent the spread of fire. They resembled 75% of the tests, with only significant difference in superiority and Caf's test in performing wet line areas without mowing. Moreover, it can be observed that the time to carry out the direct combat is better than the cooking time of firebreaks and the mowed treatments provided lower average times xii both in the manufacture of wet line as in direct combat. The analysis of the height of the vegetation on carbonization time showed a strong positive correlation with Pearson's coefficient above 0.95. This means that the higher the height of the vegetation in the largest forest understory are the carbonization heights in the trees. This carbonization time implies the wood loss for the company's pulp production, so the realization of the management of vegetation in critical areas of fire occurrence is one of the mitigation measures to be adopted to minimize timber losses carbonization