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Logging residues from regeneration fellings for biofuel production - a GIS-based availability and supply cost analysis

机译：记录再生砍伐中的残留物以生产生物燃料-基于GIS的可用性和供应成本分析

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摘要

Finland has large forest fuel resources. However, the use of forest fuels for energy production has been low, except for small-scale use in heating. According to national action plans and programs related to wood energy promotion, the utilization of such resources will be multiplied over the next few years. The most significant part of this growth will be based on the utilization of forest fuels, produced from logging residues of regeneration fellings, in industrial and municipal power and heating plants. Availability of logging residues was analyzed by means of resource and demand approaches in order to identify the most suitable regions with focus on increasing the forest fuel usage. The analysis included availability and supply cost comparisons between power plant sites and resource allocation in a least cost manner, and between a predefined power plant structure under demand and supply constraints. Spatial analysis of worksite factors and regional geographies were carried out using the GIS-model environment via geoprocessing and cartographic modeling tools. According to the results of analyses, the cost competitiveness of forest fuel supply should be improved in order to achieve the designed objectives in the near future. Availability and supply costs of forest fuels varied spatially and were very sensitive to worksite factors and transport distances. According to the site-specific analysis the supply potential between differentlocations can be multifold. However, due to technical and economical reasons ofthe fuel supply and dense power plant infrastructure, the supply potential is limited at plant level. Therefore, the potential and supply cost calculations aredepending on site-specific matters, where regional characteristics of resourcesand infrastructure should be taken into consideration, for example by using a GIS-modeling approach constructed in this study.
机译：芬兰拥有大量的森林燃料资源。然而，除了小规模地用于取暖之外，将森林燃料用于能源生产的比例一直很低。根据与促进木质能源有关的国家行动计划和方案，此类资源的利用将在未来几年内成倍增长。这种增长的最重要部分将基于对工业和市政电力和供热厂中再生伐木的伐木残渣产生的森林燃料的利用。通过资源和需求方法分析了伐木残渣的可利用性，以便确定最适合的区域，重点是增加森林燃料的使用。分析包括以最低成本的方式比较电厂站点和资源分配之间以及在需求和供应约束下的预定义电厂结构之间的可用性和供应成本比较。通过地理处理和制图建模工具，使用GIS模型环境对工作场所因素和区域地理进行了空间分析。根据分析结果，应提高森林燃料供应的成本竞争力，以便在不久的将来实现设计目标。森林燃料的可获得性和供应成本在空间上各不相同，并且对工地因素和运输距离非常敏感。根据特定地点的分析，不同地点之间的供应潜力可能是多重的。但是，由于燃料供应和密集的发电厂基础设施的技术和经济原因，在工厂一级的供应潜力有限。因此，潜力和供应成本的计算取决于特定地点的问题，应考虑到资源和基础设施的区域特征，例如，使用本研究中构建的GIS建模方法。

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    Ranta Tapio;

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  • 年度 2002
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