• Title/Summary/Keyword: optimal harvesting schedules

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An Application of Linear Programming to Multiple-Use Forest Management Planning (다목적(多目的) 산림경영계획(山林經營計劃)을 위한 선형계획법(線型計劃法)의 응용(應用))

  • Park, Eun Sik;Chung, Joo Sang
    • Journal of Korean Society of Forest Science
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    • v.88 no.2
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    • pp.273-281
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    • 1999
  • In this study, linear programming (LP) was applied to solving for optimal harvesting schedules of multiple-use forest management in Mt. Kari area managed by Chunchun National Forest Station. Associated with the geographic characteristics, the study area was classified into 4 large management units or watersheds and simultaneously applied were the site-specific levels of management constraints : nondeclining yield, initial cut for existing stands, % cut area, the volume of soil erosion, timber production and carbon storage, ending inventory condition and % area species selection for regeneration. The problem was formulated using both Model I and Model II techniques. In this paper, the formulations are presented and the results of the optimal solutions are discussed for comparison purposes.

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A Study on Developing An Experimental Model to Solve for Optimal Forest-Level Timber Harvesting Schedules Using Linear Programming (대단지(大團地) 산림(山林)의 목재생산계획(木材生産計劃) 분석(分析)을 위한 선형계획(線型計劃) 실험전산모델에 관한 연구(硏究))

  • Chung, Joo Sang;Park, Eun Sik
    • Journal of Korean Society of Forest Science
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    • v.82 no.3
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    • pp.292-304
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    • 1993
  • This research developed a forest-level harvest scheduling model using linear programming (LP). The formulations of the LP model include timber production schemes with constraints of nondecling yield forest conversion strategies, the minimum timber supply, levels and the maximum cut acrages. The model is able to generate both Model I and Model II types of input matrix in MPS format. In this paper, use of LP in building the framework of the strategic forest planning model was justified by comparing the algorithmic characteristics of LP with those of Gentan probability and binary search approaches through literature reviews. In order to demonstrate the field applicability of the model proposed. (1) the harvest scheduling problem for about 11,000-hectare case study area (Mt. Baekun area in Southern Experimental Forest of Seoul National University) was formulated and soloed and (2) the effects of the change in task regulatory timber production constraints or. optimal harvesting schedules here investigated.

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