Análise do risco de incêndio florestal em um povoamento de Eucalyptus dunnii Maiden. (Myrtaceae) na Fazenda São Jorge, município de Piraí do Sul - PR

Abstract

The present work aims to evaluate the fire risk in Eucalyptus dunnii Maiden stands. (Myrtaceae), with 4, 6, 7 and 8 years of age, in the municipality of Piraí do Sul - PR, in a property of the company Castrolanda. The characterization was carried out through the collection of the combustible material by the direct method, through destructive parcels, systematically distributed. The inventory was carried out by measuring and weighing the Forest fuel material collected, alive and dead, located between the layer of the organic horizon between 1.8 m high, with plots of 1.0 m2. Thirty-six samples were collected, distributed at the different ages of Eucalyptus dunnii stands. The final number of samples was determined based on the calculation of sample intensity. The arrangement of the combustible material was evaluated in all the stands. The green materials were between74.31% and17.22%. Eucalyptus dunnii stands out because of its arrangement, quantity and moisture content, which is favorable to the occurrence of a large forest fire in stands of 6, 7 and 8 years of age, due to the considerable increase in accumulation of combustible material and the lack of preventive measures.