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NFI4
forest area
protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
outside of perimetern/a0.10.10.10.10.20.20.0.0.0.0.10.0
less than 10 years ago57.61.774.01.342.32.117.91.28.51.644.80.8
11-20 years ago20.91.415.61.122.11.712.81.06.51.416.20.6
21-30 years ago8.41.05.20.79.01.212.41.09.01.68.80.5
31-40 years ago5.30.82.20.56.41.09.80.914.62.16.60.4
41-50 years ago3.40.60.90.35.30.97.90.810.21.84.80.3
over 50 years ago4.30.72.00.414.61.539.31.551.32.918.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.
inside perimetern/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago46.13.659.54.845.12.124.61.210.41.228.20.8
11-20 years ago20.12.917.93.722.91.816.81.15.60.915.60.7
21-30 years ago8.32.09.52.99.31.213.31.07.21.010.50.6
31-40 years ago7.51.94.72.16.91.18.90.88.21.18.00.5
41-50 years ago4.11.41.91.34.80.97.40.79.11.16.80.5
over 50 years ago13.92.56.52.411.11.329.21.359.61.930.90.8
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.10.10.10.10.10.10.0.0.0.0.00.0
less than 10 years ago55.41.672.71.343.71.521.50.99.81.037.80.5
11-20 years ago20.71.315.81.122.51.214.90.75.90.816.00.4
21-30 years ago8.40.95.60.79.10.912.90.77.70.99.50.4
31-40 years ago5.70.72.40.56.60.79.30.610.11.07.20.3
41-50 years ago3.50.61.00.35.10.67.60.69.40.95.70.3
over 50 years ago6.10.82.40.412.91.033.91.057.01.623.80.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 19.06.2020 #849396/315727
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