Emprego de um modelo de crescimento e produ??o para determina??o da rota??o em povoamentos de eucalipto

摘要

The objective of this study was to conduct a growth and yield projection of an eucalyptus stand at any age, associated to cost and revenue information, with cycles of one, two and three cuts, as well as to determine the technical and economic rotations. The criterion for determination of the technical age of cut was the maximization of the mean annual increment, while the economic age of cut was obtained based on the net present value, with the horizons being compared to the infinite for comparison of the different ages. The results indicated that the technical and economic rotations differed from each other with both varying in function of the site index; thus, adopting a medium rotation per project may cause significant revenue losses.