Prediction of Log Production for Shiitake Mushroom in each Diameter Class of Kunugi (Quercus acutissima Carr.) based on the Average Relative Stem Curve

DOI IR (HANDLE) JASI Web Site Open Access
  • Teraoka Yukio
    Department of Environmental Science and Technology, Faculty of Agriculture, Kagoshima University
  • Kabemura Yuji
    Miyazaki Branch of University Forests, Faculty of Agriculture, Kyushu University
  • Kaji Kiyohiro
    Miyazaki Branch of University Forests, Faculty of Agriculture, Kyushu University
  • Mabuchi Tetsuya
    Miyazaki Branch of University Forests, Faculty of Agriculture, Kyushu University

Bibliographic Information

Other Title
  • 林分相対幹曲線式に基づくクヌギしいたけ原木の径級別生産予測 : 九州大学宮崎演習林14年生初代林分を対象として
  • リンブン ソウタイ カン キョクセンシキ ニ モトズク クヌギシイタケ ゲンボ

Search this article

Description

The purpose of this study was to investigate the availability of the prediction method for log production numbers in each diameter class of a 14-year-old kunugi (Quercus acutissima Carr.) stand based on average relative stem curve. By using the relative-diameter-series of 19 kunugi trees, the average relative stem curve described by an equation of the third degree was obtained as follows; $ y = 0.3833940x^3 - 0.3589740x^2 - 1.1236385x $ Log numbers in each diameter class were calculated using the stem curve equation. Both actual and predicted distributions of log numbers were examined by the test of goodness of fit. The null hypothesis that stated two distributions had no difference was accepted at a 0.01 level of significance. In addition, the average top-end diameters of two log number distributions were almost equal. As a result, it is possible to predict log numbers in each diameter class of kunugi based on the average relative stem curve. This method is available for practical use.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top