摘要：Documentation of Forest Damage Factors 2008
The Documentation of Forest Damage Factors 2008
(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 private
and public forests of Austria for the year 2008. Data ascertainment
is based on the estimation of 68 damage factors.
For 20 damage factors the damage was documented in
terms of volume of the damaged wood (inmZ), for 42 factors
in terms of damaged forest areas affected (in hectares). For
the remaining six factors only the occurrence was assessed.
The method of ascertainment has not been changed. Due
to the reorganisation of forest districts only slight adaptations
had to be made for 2008. Therefore, the number of
assessment units has decreased by 3, amounting now to
238 (Figure 1). The number of interpretation units has also
decreased by 2 (74 forest districts).
From 2003 onwards, DWF has replaced that part of the
Austrian survey system “Forest Statistics” (German abbr.
FOSTA) which is dealing with forest damage 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 of the previous year.
