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首页> 外文期刊>Climatic Change >Greenhouse Gas Dynamics of an Increased Use of Wood in Buildings in Switzerland
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Greenhouse Gas Dynamics of an Increased Use of Wood in Buildings in Switzerland

机译：瑞士建筑物中木材使用量增加的温室气体动力学

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Long-living wood products contribute to the mitigation of climate change in many ways. They act as a carbon pool during their service life, as they withdraw CO2 from its natural cycle. After their service life, they can stitute for fossil fuels if they are incinerated in adequate furnaces. Furthermore, wood products can stitute for more energy-intense products made of ‘conventional’ materials. This paper quantifies the stitution and pool effects of an increased use of wood in the building sector in Switzerland for the years 2000–2130. Life cycle data on greenhouse gas (GHG) emissions of 12 wood products and their stitutes are used as proxies for relevant building products; this data is linked to the forecasted wood flows for each group of building products in a cohort-model. For the political assessment, GHG effects occurring abroad and in Switzerland are distinguished. The results show that the pool effect of an increased use of long-living wood products is of minor importance, whereas the energetic and material stitution effects are much more relevant, especially on a long-term. For construction products, the Swiss share of the GHG effect related to the material stitution is relatively high, as mainly nationally produced materials are stituted for. For interior products, the Swiss share of the GHG effect related to the material stitution is rather small because mainly imports are stituted for. The results must be considered as rough estimates. Nonetheless, these calculations show that an increased use of wood in the building sector is a valid and valuable option for the mitigation of greenhouse gas emissions and for reaching GHG emission targets in a mid- to long-term. Still, the pool and stitution capacity of an increased use of wood is relatively small compared to the overall GHG emissions of Switzerland.
机译：长寿命的木制品在许多方面有助于缓解气候变化。它们在使用寿命期间起着碳库的作用，因为它们从自然循环中吸收了二氧化碳。使用寿命结束后，如果在适当的熔炉中焚化，则可以使用化石燃料。此外，木材产品可以替代更多由“传统”材料制成的高能耗产品。本文对2000年至2130年间瑞士建筑业木材使用量增加的制度和影响进行了量化。有关12种木制品及其原料的温室气体（GHG）排放的生命周期数据用作相关建筑产品的代理；该数据与同类模型中每组建筑产品的预测木材流量相关联。为了进行政治评估，对在国外和瑞士发生的温室气体效应进行了区分。结果表明，增加使用长寿命木材产品的集中效应的重要性不大，而能量和物质结构效应则更为重要，尤其是长期而言。对于建筑产品，与材料制度有关的瑞士在温室气体效应中所占的比例相对较高，因为主要使用的是本国生产的材料。对于内饰产品，与材料制度有关的瑞士在温室气体效应中所占的份额很小，因为主要是进口替代品。结果必须视为粗略估计。但是，这些计算结果表明，在建筑部门增加使用木材是缓解温室气体排放和实现中长期温室气体排放目标的有效且有价值的选择。但是，与瑞士的整体温室气体排放量相比，增加使用木材的资源和机构能力相对较小。

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