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No. 178: Assessment of change in biomass from 2006 to 2014/2015 of non-forest woody vegetation in Denmark. Technical documentation

Levin, G., Angelidis, I. & Gyldenkærne, S. 2020. Assessment of change in biomass from 2006 to 2014/2015 of non-forest woody vegetation in Denmark. Technical documentation. Aarhus University, DCE – Danish Centre for Environment and Energy, 30 pp. Technical Report No. 178 http://dce2.au.dk/pub/TR178.pdf

Summary

 

This report contains the technical documentation of the assessment of changes in biomass for formations of non-forest woody vegetation (NFW) in the Danish rural landscape. Based on high-resolution digital terrain and surface models together with additional spatial land use information, formations of NFW for 2006 and for 2014/2015 were mapped. A spatial model, enabling detection of changes from 2006 to 2014/2015 was developed and NFW formation were grouped into formations, which during the studied period were unchanged, removed and emerged. For each category, volumes were calculated. Based on field measurements provided by Hededanmark, NFW volumes were converted into volume of wood chips. Finally, based on existing studies, wood chip volume was converted to tons of dry biomass. Results show that between 2006 and 2014/2015 the total area of NFW increased by 6.7 percentage and total biomass by 6.1 percentage. However, with a loss of 392 kilotons (5.5 percent of 2006) and a gain of 826 kilotons (11.6 percent of 2006), absolute changes where significant.