摘要：Documentation of Forest Damage Factors 2005
The Documentation of Forest Damage Factors 2005 (German
abbr. DWF) provides data on important forest pests,
diseases, vertebrates and abiotic damages, collected by
means of a survey on forest district basis in all privately
and publicly owned forests of Austria for the year 2005.
Data ascertainment is based on the estimation of 68 damage
factors. For 20 damage factors the damage was documented
as the volume of the damaged wood (in m3), for
42 damage factors as area of the concerning parts of damaged
forests stands (in hectare). For the remaining six
damage factors only the occurrence was assessed.
For the year 2005, the method of the ascertainment has
not been changed. Due to the reorganisation of forest districts
only slight adaptations had to be made. Therefore,
the number of assessment units has decreased by 2,
amounting now to 244 (Figure 1).
In Austria, in addition to the DWF, forest damage data are
collected by other surveys, such as Forest Statistics (German
abbr. FOSTA) and the Report on Forest Harvesting
(German abbr. HEM). From 2003 onwards, DWF has
been replacing that part of FOSTA which is dealing with
forest damages to avoid misunderstandings when comparing
the results of the different surveys and to prevent
duplication of ascertainment work.
The results for the total Federal Territory of Austria are
illustrated by maps of the forest districts allowing a good
overview on the forest health situation and acknowledging
the trend to the previous year.
