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

概要

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We studied the relation between the efficiency of wood-logging operation and the size of wood of the "Momi".The results obtained 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=3.92_e^<-0.007D> -13.11_e^<-0.059D> 2. The relation between D and P (percentage of log-making) is as follows : P=105.46_e^<-0.001D> -97.74^<-0.044D> 3. The relation between D and d (mean top diameter of log) is as follows : d=1.1168+0.21 87 D 4. We convinced that the suitable size of the wood is about 66cm 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 15.5 sun.
一般社団法人日本森林学会の論文
1953-07-25