Managing forests to increase carbon sequestration or reduce carbon emissions and using wood products and bioenergy to store carbon and substitute for other emission-intensive products and fossil fuel energy have been considered effective ways to tackle climate change in many countries and regions. The objective of this study is to examine the climate change mitigation potential of the forest sector by developing and assessing potential mitigation strategies and portfolios with various goals in British Columbia (BC), Canada. From a systems perspective, mitigation potentials of five individual strategies and their combinations were examined with regionally differentiated implementations of changes. We also calculated cost curves for the strategies and explored socio-economic impacts using an input-output model. Our results showed a wide range of mitigation potentials and that both the magnitude and the timing of mitigation varied across strategies. The greatest mitigation potential was achieved by improving the harvest utilization, shifting the commodity mix to longer-lived wood products, and using harvest residues for bioenergy. The highest cumulative mitigation of 421 MtCO₂e for BC was estimated when employing the strategy portfolio that maximized domestic mitigation during 2017–2050, and this would contribute 35% of BC’s greenhouse gas emission reduction target by 2050 at less than $100/tCO₂e and provide additional socio-economic benefits. This case study demonstrated the application of an integrated systems approach that tracks carbon stock changes and emissions in forest ecosystems, harvested wood products (HWPs), and the avoidance of emissions through the use of HWPs and is therefore applicable to other countries and regions.

中文翻译：

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森林部门的缓解气候变化战略：加拿大不列颠哥伦比亚省的生物物理影响和经济影响。

在许多国家和地区，管理森林以增加碳固存或减少碳排放以及使用木材产品和生物能源存储碳并替代其他排放密集型产品和化石燃料能源已被视为解决气候变化的有效方法。这项研究的目的是通过制定和评估具有不同目标的潜在缓解策略和投资组合，以检查森林部门缓解气候变化的潜力，这些措施和目标涉及加拿大不列颠哥伦比亚（BC）。从系统角度看，对五个单独策略及其组合的缓解潜力进行了区域差异化实施。我们还计算了战略的成本曲线，并使用投入产出模型研究了社会经济影响。我们的结果显示了广泛的缓解潜力，并且缓解的程度和时机因策略而异。最大的缓解潜力是通过提高采伐利用率，将商品组合转移到寿命更长的木制品以及将采伐残余物用于生物能源来实现的。最高累积缓解421 MtCO在采用将最大程度地减少2017-2050年国内减排量的战略投资组合时，卑诗省估计为₂ e，这将为卑诗省到2050年减少35％的温室气体排放目标贡献100美元/吨CO ₂ e以下的排放，并提供额外的社会经济效益。该案例研究证明了集成系统方法的应用，该方法可跟踪森林生态系统，伐木产品（HWP）中的碳储量变化和排放，以及通过使用HWP避免排放，因此适用于其他国家和地区。