Environmental impacts of eucalypt and maritime pine wood production in Portugal
Environmental impacts of eucalypt and maritime pine wood production in Portugal
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DOI：
10.1016/j.jclepro.2012.07.056
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发表时间：
2012-12-01
影响因子：
11.1
通讯作者：
Arroja, Luis
中科院分区：
文献类型：
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作者：
Dias, Ana Claudia;Arroja, Luis
本研究对蓝桉(Eucalyptus blumulus Labill.)和海松(Pinus Pinaster Ait.)葡萄牙的伍德。生命周期评估(LCA)方法从头到尾都在使用。模拟了三种森林经营情景，分别代表不同的森林经营强度和采伐设备。此外，还进行了敏感性分析，以评价采用不同数值对木材生产力的影响。在考虑到不同的管理方案和木材生产率时，每种影响类别的结果显示出相对较大的变化范围。在强度较低的情况下，除光化学氧化剂形成类别的影响外，影响要小得多(40%-88%)。在伐木作业中使用链锯和改装的农用拖拉机而不是收割机和转运机的影响没有显著差异(不到11%)，但影响类别光化学氧化剂的形成存在显著差异。对于同一类型的管理情景，桉树木材生产的影响大于对海松木材的估计影响。伐木阶段以及施肥，特别是使用含氮化肥，在所有影响类别中都发挥着主要作用。如果知道木材的来源，从而知道森林作业的类型和频率，以及燃料、润滑剂和化肥的相关消耗量，就可以使用本研究中采用的方法更准确地量化影响。(C)2012爱思唯尔有限公司。保留所有权利。
This study evaluates the environmental impacts associated with the production of eucalypt (Eucalyptus globulus Labill.) and maritime pine (Pinus pinaster Ait.) wood in Portugal. Life Cycle Assessment (LCA) methodology is used from cradle-to-gate. Three forest management scenarios, representative of different forest management intensities and logging equipment, were simulated for each species. Furthermore, a sensitivity analysis was performed to evaluate the influence of adopting different values for the wood productivity. The results obtained for each impact category show a relatively wide range of variation when different management scenarios and wood productivities are taken into account. The impacts, except for those in the category photochemical oxidant formation, are much smaller in the less intensive scenario (40-88%). The impacts of using chainsaws and adapted farm tractors in logging operations instead of harvesters and forwarders do not significantly differ (less than 11%), except for the impact category photochemical oxidant formation for which there are significant differences. For the same type of management scenario, the impacts of eucalypt wood production are larger than those estimated for maritime pine wood. The logging stage, as well as fertilization, especially with nitrogen-containing fertilizers, plays a major role in all the impact categories. More accurate impacts could be quantified using the methodology adopted in this study when the provenance of the wood and, consequently, the forest operation type and frequency, and associated consumption of fuels, lubricants and fertilizers, are known. (C) 2012 Elsevier Ltd. All rights reserved.