Work due 01 Jan 2099

SUGGESTIONS FOR IMPROVEMENT An analysis of evolution of forest area, growing stock and fellings by age class of the forest would give a much more detailed picture. Furthermore, tree species and related forest growth differs much between forest types. Because different tree species undergo a different economical demand, forest types with economically attractive species are subject to higher pressures than others. Hence an analysis by forest type would improve both the biodiversity as well as sustainability aspects of the indicator. Unfortunately statistical data according to above are not easily available for the European region. Harmonisation of national forest inventory data for growing stock and increment would improve comparability of data between countries and regions. It has to be noted that the sustainability analysis works best in countries with a more stable and equal distribution of the forest area over the age-class spectrum. Accurate estimates of illegal logging would add to the overall accuracy of data for fellings in countries where FLEGT issues (Forest Law Enforcement, Governance and Trade) exist.