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A study on Applying Dynamic Programming to Selection of Thinning Pathway for Pinus Koraiesis Stand  

Woo, Jong-Choon (Division of Forest Management Landscape Architecture, College of Forest and Environmental Sciences, Kangwon National University)
Jang, Jae-Young (Department of Forest Management, Graduate School, Kangwon National University)
Publication Information
Journal of Korean Society of Forest Science / v.98, no.3, 2009 , pp. 225-230 More about this Journal
Abstract
Using dynamic programming, which is one of operations research techniques, the best pathway was chosen to maximize the total harvest volume for a Korean white pine (Pinus koraiensis) stand. This study was carried out in an age class III at Chuncheon National Forest, Gangwon province. That stand was assumed to apply 3 different thinning intensities of none, 30% and 50% thinnings. These thinning pathways are planned to implement two times, of thinning at 35 age and 55 age. The final cutting (rotation age) is assumed to carry out in 70 years. A growth function for Korean white pine stand was developed with forest inventory data, the volume was calculated with this growth function. As a result, the best thinning pathway for this Korean white pine stand using dynamic programming is to implement 30% at the first thinning and 50%at the second thinning.
Keywords
dynamic programming; thinning pathway; growth function; Pinus koraiensis stand;
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