Effects of Low Temperature on Operation Efficiencyof Tree-Felling by Chainsaw in North China  

作　　者：王永安 贾宝君 

出　　处：《Journal of Forestry Research》1998年第1期57-58,共2页林业研究（英文版）

摘　　要：Comparison method and vidco-tape recorders were used in case study for recording thc operation performances of two group operators. The time span was 7 months, from September 10 March. The performance of operations in September was taken as references. The results of test survey and data analysis showed that the tree-felling operation efficiency was influenced by cold weather, properly decreased 18.5% in average.Comparison method and vidco-tape recorders were used in case study for recording thc operation performances of two group operators. The time span was 7 months, from September 10 March. The performance of operations in September was taken as references. The results of test survey and data analysis showed that the tree-felling operation efficiency was influenced by cold weather, properly decreased 18.5% in average.

关 键 词：COLD working environment Operation efficiency Tree-felling ERGONOMICS considerations 

分 类 号：S781[农业科学—木材科学与技术]