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A Comprehensive Examination of Economic Harvest Optimization Simulation Methods

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The simulation algorithms that determine a harvest trajectory based on supply and demand--Economic Harvest Optimization (ECHO) and the present net worth (PNW) option of the Timber Resource Economic Estimation System--appear to offer reasonable approximations of optimal harvest regimes and to approach stable harvests. The two versions differ primarily in the calculation of growth on the marginal acre and in the way the algorithms iterate to a feasible solution. The impact of commercial thinning, shifting demand curves, and multiple sites and species is discussed relative to the capability of the algorithms to achieve optimality and stability. Forest Sci. 27:523-536.

Keywords: forest simulation; present net worth; quadratic Programming; timber harvest scheduling

Document Type: Journal Article

Affiliations: Associate Professor, Forest Management, Oregon State University, Corvallis, Oregon 97331

Publication date: 1981-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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