Abstract
Optimal thinning interval and rotation length for an even-aged forest stand can be determined simultaneously by nonlinear programming with a flexible polyhedron. The optimal combination is found by sequentially solving a family of problems with increasing numbers of thinnings until the objective function (maximum present net worth) begins to decline. Such solutions are applied to technical data on Douglas-fir on site index 140. This approach is compared with formulation by dynamic programming. Forest Sci. 26:338–346.
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