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NFI4
forest area
horizontal distance sample plot-road (4 classes) · time of last treatment (classes of 10 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
horizontal distance sample plot-road (4 classes)time of last treatment (classes of 10 years) %± %± %± %± %± %±
up to 100 mn/a0.20.20.10.10.0.0.0.0.0.0.10.1
less than 10 years ago62.32.078.21.457.62.640.52.335.85.262.31.0
11-20 years ago20.41.614.51.226.62.423.62.011.73.519.50.8
21-30 years ago7.91.14.60.75.61.214.51.713.63.67.70.5
31-40 years ago3.80.81.30.45.51.27.71.311.33.44.10.4
41-50 years ago2.70.70.70.32.40.83.60.94.52.22.20.3
over 50 years ago2.90.70.70.32.20.810.11.423.14.64.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
101-500 mn/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago46.02.657.93.144.72.224.31.415.62.335.41.0
11-20 years ago20.72.120.42.523.01.818.31.39.51.919.10.8
21-30 years ago10.01.58.01.711.01.413.01.17.51.710.90.7
31-40 years ago8.61.56.41.67.21.19.31.08.61.88.30.6
41-50 years ago4.91.12.41.04.80.98.30.912.62.16.70.5
over 50 years ago9.71.54.81.49.41.326.81.546.33.219.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.
501-1000 mn/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago50.011.253.411.426.03.614.81.95.91.917.41.4
11-20 years ago20.79.215.48.218.53.212.81.74.01.612.41.2
21-30 years ago0.0.15.38.28.42.212.31.79.72.410.61.2
31-40 years ago9.96.75.85.65.21.810.71.69.72.49.21.1
41-50 years ago0.0.0.0.13.72.89.31.56.62.09.11.1
over 50 years ago19.48.810.26.828.23.640.22.664.23.941.31.8
total100.0.100.0.100.0.100.0.100.0.100.0.
over 1000 mn/a0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago65.927.650.735.314.96.910.42.34.01.27.61.2
11-20 years ago34.127.60.0.10.55.85.91.83.81.25.11.0
21-30 years ago0.0.0.0.15.77.211.72.55.51.48.31.3
31-40 years ago0.0.0.0.24.98.29.82.37.41.69.21.3
41-50 years ago0.0.0.0.3.73.68.12.18.41.77.91.2
over 50 years ago0.0.49.335.330.38.954.13.870.92.761.92.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.10.10.10.10.0.0.0.0.0.0.00.0
less than 10 years ago55.81.673.31.345.71.525.01.011.81.241.80.6
11-20 years ago20.51.315.71.123.31.317.30.96.60.917.30.5
21-30 years ago8.50.95.50.78.90.913.10.87.91.09.40.4
31-40 years ago5.70.72.50.56.80.89.20.78.71.06.80.3
41-50 years ago3.50.61.10.35.20.77.40.68.91.05.30.3
over 50 years ago5.80.71.80.410.20.928.01.056.01.819.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 21.06.2020 #816962/283293
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