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近年,原始林木材生产量逐年减少,人工林木材产量逐年递增。对于人工林间伐集材问题已有讨论,但对人工林间伐材的装卸运输问题讨论甚少,本文设想对人工林间伐材实行木捆集装运输,供商讨。据黑龙江省林业科学院江山娇实验林场造林密度6,600株/公顷、经4次间伐后的28年生人工林调查,其最大单株材积0.2立米,平均单株材积0.06立米,最大胸径0.2米,平均胸径12厘米,材长有6、8、10、12米四种。人工林间伐材,多数用于民用建筑材或建筑工地用脚手杆材。间伐材从山上装车场起运开始,直至送到用户的整个运输装卸过
In recent years, the production of virgin forest timber has been decreasing year by year, and the output of plantation timber has been increasing year by year. There has been discussion on the issue of artificial forestry thinning and timbering, but there is little discussion on the loading and unloading transportation of thinned timber. According to the investigation of 28-year-old man-made forests after thinning for 4 years, the largest single plant volume was 0.2 m, the average single plant volume was 0.06 m and the maximum diameter at breast height was 0.2 m. The average diameter at breast height 12 cm, length of 6,8,10,12 m four. Plantation thinning timber, mostly for civil construction materials or construction sites with scaffolding rods. Thinning wood from loading the mountain to start loading until the entire transport to the user over loading and unloading