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Báo cáo lâm nghiệp: "Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates"

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Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates" | 889 Ann. For. Sci. 62 2005 889-902 INRA EDP Sciences 2005 DOI 10.1051 forest 2005080 Original article Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland first estimates Frank WERNERa Ruedi TAVERNAb Peter HOFERb Klaus Richterc a Environment and Development Waffenplatzstrasse 89 8002 Zurich Switzerland b GEO Partner AG Baumacherstrasse 24 8050 Zurich Switzerland c Swiss Federal Laboratories for Materials Testing and Research Empa Ueberlandstrasse 129 8600 Duebendorf Switzerland Received 13 April 2004 accepted 6 October 2005 Abstract - Long-living wood products can contribute to the mitigation of climate change in many ways. On the one hand they act as a carbon pool during their service life as they withdraw CO2 from its natural cycle. After their service life they can substitute for fossil fuels if they are incinerated in adequate furnaces. On the other hand wood products can substitute for more energy intense products made of conventional materials. This paper quantifies the substitution and carbon pool effects of an increased use of wood in the building sector in Switzerland for the years 2000-2130. For this purpose life cycle data on greenhouse gas GHG emissions of 12 wood products and their substitutes is used as proxies for the most important groups of building products used in construction and in interior works 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 are distinguished from GHG effects occurring in Switzerland. The results show that the C-pool effect of an increased use of wood products with long service life is of minor importance the substitution effects associated with the thermal use of industrial and post-consumer waste wood as well as with the substitution of conventional materials are much more relevant especially on a long-term. For construction materials the Swiss share of the GHG effect .

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