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NFI5
forest area
protection forest against avalanches (2022) · reason for sanitary/salvage felling (forest area classifier)
regional demarcation: biogeographical region
unit: %, column total
evaluation area: accessible forest without shrub forest NFI1-NFI5
grid: 1.4 km grid, subgrids 1-5
state 2018/26
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest against avalanches (2022)reason for sanitary/salvage felling (forest area classifier)%±%±%±%±%±%±%±
n/an/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
no sanitary/salvage felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.
insects0.0.0.0.0.0.0.0.0.0.0.0.0.0.
fungi0.0.0.0.0.0.0.0.0.0.0.0.0.0.
wind0.0.0.0.0.0.0.0.0.0.0.0.0.0.
snow load0.0.0.0.0.0.0.0.0.0.0.0.0.0.
avalanche0.0.0.0.0.0.0.0.0.0.0.0.0.0.
debris flow, landslide0.0.0.0.0.0.0.0.0.0.0.0.0.0.
flood0.0.0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other causes0.0.0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality due to drought0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other loss of vitality0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total0.0.0.0.0.0.0.0.0.0.0.0.0.0.
insiden/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
no sanitary/salvage felling2.20.70.10.110.01.023.32.712.91.811.11.77.80.5
insects0.20.20.0.0.60.30.80.60.0.0.0.0.30.1
fungi0.0.0.0.0.0.0.0.0.0.0.0.0.0.
wind0.0.0.0.0.70.32.00.90.60.40.60.40.50.1
snow load0.0.0.0.0.0.0.40.40.0.0.0.0.00.0
avalanche0.0.0.0.0.0.0.0.0.0.0.0.0.0.
debris flow, landslide0.0.0.0.0.0.0.0.0.0.0.0.0.0.
flood0.0.0.0.0.0.0.0.0.0.0.0.0.0.
forest fire0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other causes0.0.0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality due to drought0.0.0.0.0.0.0.0.0.0.0.30.30.00.0
other loss of vitality0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total2.40.70.10.111.31.126.62.813.51.812.01.78.70.5
outsiden/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
no sanitary/salvage felling76.81.965.21.772.71.667.33.077.82.281.72.072.80.8
insects8.11.212.21.24.90.80.80.61.10.62.60.86.20.4
fungi2.30.76.10.91.70.50.0.0.30.30.0.2.40.3
wind4.00.910.01.17.00.91.20.74.71.11.50.65.80.4
snow load0.60.31.90.51.30.42.41.01.40.60.30.31.30.2
avalanche0.0.0.0.0.20.20.40.40.30.30.30.30.20.1
debris flow, landslide0.0.0.0.0.30.20.40.40.0.0.0.0.10.1
flood0.0.0.0.0.0.0.0.0.30.30.0.0.00.0
forest fire0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other causes0.0.0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality due to drought5.61.03.80.70.40.20.80.60.30.31.10.62.20.3
other loss of vitality0.20.20.70.30.20.20.0.0.30.30.60.40.40.1
total97.60.799.90.188.71.173.42.886.51.888.01.791.30.5
totaln/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
no sanitary/salvage felling79.01.865.31.782.71.390.71.990.71.692.81.480.60.7
insects8.31.212.21.25.50.81.70.81.10.62.60.86.40.4
fungi2.30.76.10.91.70.50.0.0.30.30.0.2.40.3
wind4.00.910.01.17.70.93.21.15.31.22.00.86.30.4
snow load0.60.31.90.51.30.42.81.11.40.60.30.31.40.2
avalanche0.0.0.0.0.20.20.40.40.30.30.30.30.20.1
debris flow, landslide0.0.0.0.0.30.20.40.40.0.0.0.0.10.1
flood0.0.0.0.0.0.0.0.0.30.30.0.0.00.0
forest fire0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other causes0.0.0.0.0.0.0.0.0.0.0.0.0.0.
loss of vitality due to drought5.61.03.80.70.40.20.80.60.30.31.40.62.30.3
other loss of vitality0.20.20.70.30.20.20.0.0.30.30.60.40.40.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 05.03.2024 #1218440/400189

Table citation

Abegg, M.; Ahles, P.; Allgaier Leuch, B.; Cioldi, F.; Didion, M.; Düggelin, C.; Fischer, C.; Herold, A.; Meile, R.; Rohner, B.; Rösler, E.; Speich, S.; Temperli, C.; Traub, B.,
2023: Swiss national forest inventory - Result table No. 1218440. Birmensdorf, Swiss Federal Research Institute WSL

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