木材の大きさと作業能率との関係について(第V報) : ヒノキ立木の大きさと伐木造材作業能率の関係

概要

論文の詳細を見る
We studied the relation between the efficiency of wood-logging operation and the size of wood of the "Hinoki". The results are as follows : 1. The relation between D (breast-height diameter of wood) and V (volume of wood logging per one hour) is as follows : V=3.386^<-0.0052D>_e-5.559^<0.043^3D>_e 2. The relation between D and P (percentage of log-making) is as follows : P=99.97^<-0.0009D>_e-109.3^<-0.0682D>_e 3. The relation between D and d (mean top diameter of log) is as follows : d=0.9012+0.1829 D 4. We convinced that the suitable size of the wood is about 66 cm in D.5. d of the logs 2 ken in length which are log-maked from the wood of 66 cm in D is about 13 sun.
一般社団法人日本森林学会の論文
1954-05-25