The effects of spatial harvest scheduling constraints on the value of a medium-sized forest holding in the Southeastern United States.

摘要

Forest plans related to a number of spatial harvest scheduling scenarios were developed for a medium-sized forest holding in the Southeastern USA, using a heuristic forest planning technique (tabu search). Green-up periods of 2 to 7 years were assessed in conjunction with the two types of adjacency constraints. The results indicate for this one property that a short green-up period (2-3 years) did not significantly affect the economic value of the forest holding studied. Longer green-up periods and smaller maximum clearcut sizes could reduce the net present value of this forest holding by as much as 5 to 15% depending on the clearcut adjacency rules used. In a validation of the heuristic solutions, we found that the best solution generated with the heuristic (for three separate problems) was within 0.25% of the integer programming solution..