TAILIEUCHUNG - Báo cáo lâm nghiệp: "Growing stock-based assessment of the carbon stock in the Belgian forest biomass"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Growing stock-based assessment of the carbon stock in the Belgian forest biomass" | 853 Ann. For. Sci. 62 2005 853-864 INRA EDP Sciences 2005 DOI forest 2005076 Original article Growing stock-based assessment of the carbon stock in the Belgian forest biomass Inge Vande WALLEa Nancy Van CAMPb Dominique PERRINc Raoul LEMEURa Kris VERHEYENb Bas Van WESEMAELd Eric LAITATc a Laboratory of Plant Ecology Ghent University Coupure links 653 9000 Gent Belgium b Laboratory of Forestry Ghent University Geraardsbergse Steenweg 267 9090 Melle Belgium c Plant Biology Unit Gembloux Agricultural Sciences University passage des Déportés 2 5030 Gembloux Belgium d Department of Geography Louvain-la-Neuve University bât. Mercator place Pasteur 3 1348 Louvain-la-Neuve Belgium Received 13 April 2004 accepted 22 March 2005 Abstract - Belgian forests covered 693 181 ha in 2000 representing of the total land area. As no biomass or carbon stock data are included in the Flemish and Walloon regional forest inventories species-specific wood densities biomass expansion factors . and carbon content values were critically selected from the literature. Based on these conversion and expansion factors and on data from the forest inventories the total C-stock in the living biomass of productive Belgian forests was assessed at Mt C in the year 2000. The overall mean C-stock amounted to t C ha-1. This value was in the higher range of values reported for the neighbouring countries mainly due to a high mean growing stock in the Belgian forests m3 ha-1 . The conversion from wood volume to wood biomass based on wood density values reported in the literature appeared to introduce the largest variability in the assessment of the carbon stocks. Additional measurements of wood densities in Belgian forests could help to reduce the uncertainty related to this factor. Because of the time-consuming and destructive character of the determination of biomass expansion factors . BEFs the establishment of new BEFs does not have the highest priority in the framework .

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