Estimation of Growth Parameters using the Local Yield Table Construction System for Planted Forests throughout Japan
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概要
- 論文の詳細を見る
We applied the Local Yield Table Construction System (LYCS), a computer program that predicts stand growth using various stand density controls, to sugi (Cryptomeria japonica), hinoki (Chamaecyparis obtusa), and karamatsu (Larix leptolepis) plantated forests throughout Japan. The parameters were estimated from yield tables of karamatsu forests produced by the managers of the national forests in the Hokkaido, Iwate, Dewa, and Shinshu regions of Japan. The diameter at breast height (DBH) and the number of trees measured in permanent plots were used as the parameters for estimating the effect of stand density on diameter growth. We used these parameters to estimate stand growth in terms of tree height, DBH, and tree diameter distribution. The estimated stand growth data calculated using these parameters were comparable to data in the original yield tables and observed values obtained from permanent plots. These results enabled us to construct yield tables for various stand density control plans for karamatsu forests.
- 森林計画学会の論文
著者
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ISHIBASHI Satoshi
Hokkaido Research Station, Forestry and Forest Products Research Institute
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Matsumoto Mitsuo
Forest Management Division Forestry And Forest Products Research Institute
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Tatsuhara Satoshi
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Matsumoto Mitsuo
Forestry And Forest Products Research Institute
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Nakajima Tohru
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Sasakawa Hiroshi
Kanagawa Prefecture Natural Environment Conservation Center
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Nakajima Tohru
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Ishibashi Satoshi
Hokkaido Research Center Forestry And Forest Products Research Institute
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