Table 2 Available stand-level attributes for modelling wind damage in the study area
From: Developing predictive models of wind damage in Austrian forests
Variable | Unit | Median | Description |
|---|---|---|---|
ELEV | m | 900 | Elevation |
SL | ° | 25 | Slope steepness |
ASP | Nominal | – | Aspect [N, NE, E, SE, S, SW, W, NW] |
SITE | Nominal | – | 21 site types from the site classification system of the Austrian Federal Forests; used in different groupings according to bedrock (calcareous, acidic, flysch), water and nutrient status |
YC | m3 ha−1 year−1 | 8 | Yield class of the main species of the stand; mean volume production per ha and year over a period of 100 years |
PA | % | 80 | Proportion of Norway spruce (Picea abies [L.] Karst.) |
AGE | years | 90 | Mean stand age |
VOL | m3 ha−1 | 290.51 | Timber stock volume before removals of actual year |
Wt | m3 ha−1 (t) years−1 | – | Wind damage in previous (t) years, t = [1–4] |
Bt | m3 ha−1 (t) years−1 | – | Bark beetle damage in previous (t) years, t = [1–4] |
St | m3 ha−1 (t) years−1 | – | Snow damage in previous (t) years, t = [1–4] |
Rt | m3 ha−1 (t) years−1 | – | Regular harvests in previous (t) years, t = [1–4] |
VMAX | m s−1 | 14.44 | Highest daily 2-s gust speed per year |
SF | [0,1] | – | Soil state on the day with the highest 2-s gust speed (1, frozen; 0, not frozen) |