Equations to estimate processing and forwarding costs, while considering log size: clear-cutting operations in Nasunogahara, Tochigi Prefecture, Japan
Equations to estimate processing and forwarding costs, while considering log size: clear-cutting operations in Nasunogahara, Tochigi Prefecture, Japan
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在考虑原木大小的情况下估算加工和运输成本的方程式：日本栃木县那须野原的砍伐作业
DOI：
10.1080/13416979.2017.1376263
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发表时间：
2018
影响因子：
1.5
通讯作者：
Kazuhiro Aruga
中科院分区：
文献类型：
--
作者：
Yoshiko Mizuniwa;Chikara Nakahata;Kazuhiro Aruga
本研究开发的方程，其中一个可以估计的处理和转发成本皆伐作业，同时考虑日志的大小，并假设适度和轻轻倾斜的网站。处理周期时间估计使用的平均去枝和造材时间相关的平均日志体积和堆积时间相关的日志从茎提取的数量。通过使用转发距离、出货和入货行进速度以及与装载的原木数量相关的装载和卸载时间来估计转发周期时间。利用平均原木体积与装载在转发器上的原木数量之间的关系来估计转发体积。0.02和0.20立方米/原木之间的加工成本差异计算出约为10.00美元/立方米，而0.02和0.20立方米/原木之间的运输成本差异计算出疏伐和皆伐作业分别约为4.00美元/立方米和7.00美元/立方米。最后，业务系统的成本进行了估计：在业务系统成本与小尺寸的日志（而不考虑日志大小）之间的收入和利润最大化的提取分别为9.08美元，9.05美元和9.36美元/立方米站点A，站点B，间伐业务，分别。然而，A地点的这些费用从36.65美元/立方米到87.65美元/立方米不等，B地点从28.75美元/立方米到70.21美元/立方米不等，疏伐作业从27.71美元/立方米到70.81美元/立方米不等。因此，应在适当考虑原木尺寸的同时估算成本。
This study develops equations by which one can estimate processing and forwarding costs for clear-cutting operations, while considering log size and assuming moderately and gently sloping sites. Processing cycle times were estimated by using the average delimbing and bucking times related to average log volume and piling time related to the number of logs extracted from the stem. Forwarding cycle times were estimated by using the forwarding distance, the out-hauling and in-hauling travel velocities, and the loading and unloading time related to the number of loaded logs. The forwarding volume was estimated by using the relationship between the average log volume and the number of logs loaded on the forwarder. Differences in processing costs between 0.02 and 0.20 m3/log worked out to around USD 10.00/m3, whereas differences in forwarding costs between 0.02 and 0.20 m3/log worked out to around USD 4.00 and USD 7.00/m3for thinning and clear-cutting operations, respectively. Finally, operational system costs were estimated: differences in operational system costs with the extraction of small-sized logs (and while not considering log size) between maximizing revenues and profits were USD 9.08, USD 9.05, and USD 9.36/m3at Site A, Site B, and thinning operations, respectively. However, those costs ranged from USD 36.65 to USD 87.65/m3for Site A, from USD 28.75 to USD 70.21/m3for Site B, and from USD 27.71 to USD 70.81/m3for thinning operations. Thus, costs should be estimated while duly considering log size.