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Optimal forest road density: economic approach to the full-tree system

Grant number: 20/11921-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2020
Effective date (End): September 30, 2021
Field of knowledge:Agronomical Sciences - Forestry Resources and Forestry Engineering - Techniques and Operations in Forestry
Principal researcher:Danilo Simões
Grantee:Felipe Soares Cavalcante
Home Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Forest roads are complex structures that require significant mobilization of financial resources and therefore have an influence on the costs of wood production. Therefore, the objective is to economically analyze whether the density of low-volume roads in areas with Eucalyptus urograndis forests is rationalized, based on the binomial road-logging in whole tree system. The study will contemplate a clonal forest in first rotation planted in the state of São Paulo. The timber harvesting operations are based on the full-tree system, therefore, as a basic principle, the time study will be applied to measure the productivity of the grapple skidder used for the extraction of the tree bundles. That said, by estimating the cost of the grapple skidder per programmed hour, the production cost of this operation will be obtained. The optimal density of roads will be obtained according to the methodology proposed by the Food and Agriculture Organization of the United Nations, however, to estimate the intrinsic costs to roads, methodologies that will express all the monetary expenditures required for maintenance and reconstruction of the roads will be applied , in addition, which will allow estimating the cost per loss of productive area. Finally, the aim is to estimate the occurrence of the cost of excess roads.

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