Open AccessMULTIPLE USE VALUES AND OPTIMAL STEADY STATE AGE DISTRIBUTIONS
Author(s) -
Heaps Terry
Publication year - 1995
Publication title -
natural resource modeling
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.28
H-Index - 32
eISSN - 1939-7445
pISSN - 0890-8575
DOI - 10.1111/j.1939-7445.1995.tb00204.x
Subject(s) - amenity , work (physics) , forest management , distribution (mathematics) , value (mathematics) , mathematics , point (geometry) , forestry , geography , environmental science , statistics , business , engineering , mathematical analysis , geometry , mechanical engineering , finance
Forest management today, generally, focuses not only on wood values but also on the many other amenities and services provided by growing forests. The significance of these multiple use values was recognized by Hartman [1976] who derived a formula for the optimal rotation for a single stand when the services provided by the stand throughout its life are considered in addition to the value of the final harvest. Some more recent work has focused on the case of multiple stands where the amenity values at a point in time depend on the age distribution of the stands at that time. One approach to harvesting multiple stands for wood values alone is the forestry maximum principle developed by Heaps [1984] and Wan [1985]. It will be shown here how the forestry maximum principle can be modified to incorporate the amenity services provided by the growing forest. The optimal steady state age distributions for the multiple stand forest can then be identified and described with the help of Hartman's rotation formula.