A Simulation Method for Examining the Log Production Sustainability (Academic Article)

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Other Title
  • 素材生産持続可能性分析のためのシミュレーション手法（論文）
  • 素材生産持続可能性分析のためのシミュレーション手法 : 宮崎県民有スギ人工林を対象として
  • ソザイ セイサン ジゾク カノウセイ ブンセキ ノ タメ ノ シミュレーション シュホウ : ミヤザキケン ミンユウ スギ ジンコウリン オ タイショウ ト シテ
  • A Case Study in the Non-national Sugi Plantation Forests in Miyazaki Prefecture
  • 宮崎県民有スギ人工林を対象として

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Description

Log production has been expanding so rapidly in recent years in Miyazaki Prefecture where Sugi (Cryptomeria japonica) grows fast, that the sustainability of production is questioned. This study proposed a method to simulate the sustainability of log production, and applied it to the non-national Sugi plantation forests in the prefecture. With this method, how long a target log volume can be sustained in each watershed is calculated under the presumptions on the replantation rate and the unable-to-harvest forest rate. The effects on the length of sustainable production period of some policy options such as replantation rate improvement, recovery from unable-to-harvest forests to harvestable ones, and production volume share between watersheds are also examined. The results showed that the sustainability is in a critical level in some watersheds so that some policy options need to be realized, from which it is considered that such a method to simulate and examine policy options will be an effective tool for local forestry administration at a time when log harvest is increasing nationwide.

Journal

  • FOREST ECONOMY

    FOREST ECONOMY 72 (3), 1-14, 2019

    FOREST ECONOMIC RESEARCH INSTITUTE

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