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Integrated harvesting of industrial roundwood and energy wood from clearcutting of a Scots pine-dominated peatland forest
International Journal of Forest Engineering ( IF 1.9 ) Pub Date : 2019-09-29 , DOI: 10.1080/14942119.2020.1672462
Juha Laitila 1 , Kari Väätäinen 1 , Harri Kilpeläinen 1
Affiliation  

ABSTRACT In order to evaluate the impact of a forest management regime on timber harvesting costs, it is necessary to get information about the impact of forest treatment on the productivity of timber harvesting. Clearcutting of young or advanced thinning stage stands is not a traditional forest management practice in Finland, and thus the productivity and costs of clearcutting are considered important sources of uncertainty in the profitability calculations. In the present study, the productivity of integrated harvesting of industrial roundwood, delimbed stems and logging residues (for energy) from clearcutting of Scots pine-dominated peatland forest was studied. Video recording, continuous timing method and stem measurement information from the harvester were used for constructing time consumption models. The harvester used in the study was a Komatsu 911.5 with an attached Komatsu C93 harvester head. Trees were harvested using the single-stem cutting method since trees growing on peatland are often ill-suited to multi-stem cutting using feeding and delimbing harvester heads. The comparison of study results with earlier studies indicates that the productivity of the single-stem cutting method for Scots pine on peatlands was higher in clearcutting than in thinning, and almost the same as seen in the multi-stem cutting of downy birch on clearcuts. Due to a low removal and tree quality, the harvesting conditions are challenging and clearcutting provides the great opportunity to increase cutting productivity and the annual harvesting volume in peatland forests compared to thinning as an alternative cutting method.

中文翻译:

从苏格兰松树占主导地位的泥炭地森林的砍伐中综合采伐工业圆木和能源木材

摘要 为了评估森林管理制度对木材采伐成本的影响,有必要了解森林处理对木材采伐生产力的影响。在芬兰,砍伐幼龄或晚期间伐期林分不是传统的森林管理实践,因此砍伐的生产力和成本被认为是盈利能力计算中不确定性的重要来源。在本研究中,研究了从苏格兰松树主导的泥炭地森林的砍伐中综合采伐工业圆木、去枝茎和伐木残留物(用于能源)的生产力。视频记录、连续计时方法和收割机的茎测量信息用于构建时间消耗模型。研究中使用的收割机是带有小松 C93 收割机头的小松 911.5。树木使用单茎切割方法收获,因为生长在泥炭地的树木通常不适合使用喂食和去枝收割机头进行多茎切割。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。5 附带小松 C93 收割机头。树木使用单茎切割方法收获,因为生长在泥炭地的树木通常不适合使用喂食和去枝收割机头进行多茎切割。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。5 附带小松 C93 收割机头。树木使用单茎切割方法收获,因为生长在泥炭地的树木通常不适合使用喂食和去枝收割机头进行多茎切割。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。树木使用单茎切割方法收获,因为生长在泥炭地的树木通常不适合使用喂食和去枝收割机头进行多茎切割。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。树木使用单茎切割方法收获,因为生长在泥炭地的树木通常不适合使用喂食和去枝收割机头进行多茎切割。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。研究结果与早期研究的比较表明,单茎砍伐泥炭地的苏格兰松的生产力在清除中高于疏伐,与在清除上的绒毛桦的多茎砍伐中看到的几乎相同。由于采伐率和树木质量低,采伐条件具有挑战性,与作为替代采伐方法的间伐相比,采伐为提高泥炭地森林的采伐效率和年采伐量提供了绝佳机会。
更新日期:2019-09-29
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