Life Cycle Assessment has become one of the most recognized and internationally accepted method for examining the environmental performance of forest products and processes. The main aim of this study was to evaluate the potential environmental impact associated with different commercial outputs of maritime pine wood (round, industrial, and residual) produced in the Portuguese forest under natural regeneration. Identifying the hotspots in the life cycle (cradle-to-gate) of each sort of maritime pine was another objective of the study. SimaPro software was used for this study, whilst the CML-IA (baseline) method was chosen to assess the environmental impacts. The study showed that round wood presented the highest values in all impact categories and industrial wood presented the lowest values except in photochemical oxidation where residual wood was the best co-product when economic allocation is chosen. The major hot spots appeared to be the felling and hauling processes due to fossil fuel combustion in the chainsaw and forwarder, respectively. The co-product that should be more environmentally friendly considerably depends on the allocation procedure chosen.

生命周期评估已成为检查森林产品和过程的环境绩效的最受认可和国际认可的方法之一。这项研究的主要目的是评估在自然再生下，葡萄牙森林生产的海洋松木（圆形，工业和残余）的不同商业产出所带来的潜在环境影响。确定每种海洋松的生命周期（从摇篮到大门）的热点是该研究的另一个目标。本研究使用SimaPro软件，而选择CML-IA（基线）方法来评估环境影响。研究表明，圆木在所有影响类别提供的最高价值和工业用材介绍，除了在光化学氧化，其中残留的木材是最好的共同产物是选择经济分配时的最低值。主要的热点似乎是分别由于电锯和货运代理中的化石燃料燃烧造成的砍伐和拖运过程。应当对环境更加友好的副产品在很大程度上取决于所选的分配程序。