ABSTRACT A case study was analyzed on productivity of clear cutting conducted by novel logging machines in the Kochi University Forest. A small block (0.15 ha in average) has been clear-cut annually to prepare a practice planting site for the Forest Science Course students. Until 2015, harvesting operations were performed by a small-scale system, such as a winch-mounted mini-forwarder. However, in 2016 an updated system was introduced with a processor head equipped on a base machine of 0.25 m3 bucket size-class and a forwarder with a 3 t loading capacity. A series of operations was conducted with this new system in November 2016, including cutting, logging, processing, bucking, and forwarding. The total productivity was evaluated at over 4 m3/person-day, a significant increase over the former system, at 2 m3/person-day. A critical factor in productivity was extraction by the processor, which was affected by the angle of felled trees relative to a strip road.

中文翻译：

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在高知大学森林中使用处理器直接抓捕小块明地块的收割作业的生产率

摘要 对高知大学森林中新型伐木机进行的伐木生产率的案例研究进行了分析。每年都会清理一小块地块（平均 0.15 公顷），为森林科学课程的学生准备一个练习种植场地。直到 2015 年，收割作业都是由小型系统执行的，例如安装在绞盘上的小型转发器。然而，在 2016 年推出了更新的系统，在 0.25 立方米铲斗尺寸级的基础机器上配备了一个处理器头和一个装载能力为 3 吨的货运代理。2016 年 11 月，这套新系统进行了一系列操作，包括切割、伐木、加工、扣件和转发。总生产力评估为超过 4 立方米/人-天，比以前的系统显着增加，为 2 立方米/人-天。