This study analyzed the variability of truckloads of large-sized pine logs transported to a furniture manufacturing mill, depending on the origin of the timber, delivery period, length of the transported logs, volume of the load and its mass. It was assumed that the volume and mass of the transported timber load depends on the season of the year and the origin of the timber, which has a significant impact on the mass of one cubic meter of the load. The analysis of the wood origin parameters (location of its growth) took into account the type of forest habitat, soil type and stand abundance. The characteristics of the tree parameters from which the roundwood was obtained took into account age, diameter at breast height (DBH) and height of the stand. The origin of the timber was determined for 1063 timber loads from 40 forest districts transported over a 12 month period. We obtained an average timber load volume of 29.34 m³ which includes single shipments differing significantly in their volume of between 24.21 and 36.51 m³. The origin of the timber, habitat conditions and stand parameters of the harvesting site influence load mass and the mass of 1 m³ of load. The delivery date has an impact on the studied elements of the sawlogs load, with two similar periods—spring and summer. The volume of the transported timber is already at a stabilized level in accordance with legal regulations, which is no longer dependent on other factors and only on the accepted conversion factors for roundwood density and the mass of the empty vehicle set. This has not influenced a reduction in the mass of the transported timber.

中文翻译：

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松木锯材运往锯木厂的多方位载荷分析

这项研究分析了运输到家具制造厂的大型松木原木卡车的变异性，具体取决于木材的来源，交货期，运输原木的长度，载荷量及其质量。假定运输的木材负荷的数量和质量取决于一年的季节和木材的来源，这对一立方米负荷的质量有重大影响。对木材原产地参数（其生长位置）的分析考虑了森林生境的类型，土壤类型和林分丰富度。从中获取圆木的树木参数的特征考虑了年龄，胸径（DBH）和林分高度。在12个月的运输时间内，从40个森林地区的1063木材负载中确定了木材的来源。我们获得的平均木材装载量为29.34 m³，其中包括单个发货，其体积在24.21和36.51 m ³之间有显着差异。木材的来源，生境条件和伐木场的林分参数会影响负载质量和1 m ³负载质量。交货日期对锯木负载的研究要素有影响，在两个相似的时期（春季和夏季）。根据法律法规，运输的木材量已经处于稳定水平，不再依赖于其他因素，而仅取决于圆木密度和空车组质量的公认转换因子。这并未影响运输木材质量的降低。