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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: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
horizontal distance sample plot-road (4 classes)time of last treatment (classes of 10 years) %± %± %± %± %± %± %±
up to 100 mn/a0.10.10.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago49.21.116.31.215.51.49.51.29.41.14.10.725.10.5
11-20 years ago11.50.78.40.97.41.04.90.95.60.81.40.47.80.3
21-30 years ago4.00.42.40.52.60.63.50.83.10.71.60.43.10.2
31-40 years ago1.60.31.90.41.10.42.80.71.70.51.30.41.70.2
41-50 years ago1.00.20.90.30.50.31.50.50.50.30.50.30.90.1
over 50 years ago1.10.20.90.30.80.44.20.81.90.52.70.61.60.2
total68.51.030.91.527.81.826.31.822.21.511.61.240.30.6
101-500 mn/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago14.90.821.51.316.91.59.81.210.11.15.10.813.90.5
11-20 years ago6.00.510.31.011.21.25.81.010.61.23.10.67.50.3
21-30 years ago2.70.46.50.85.40.93.50.87.61.02.40.64.30.3
31-40 years ago2.30.33.60.63.70.73.50.85.50.92.80.63.30.2
41-50 years ago1.20.23.50.61.90.55.51.02.70.64.10.72.70.2
over 50 years ago2.30.36.10.87.61.019.01.69.41.115.11.37.70.3
total29.41.051.71.646.82.047.22.146.01.832.51.739.40.6
501-1000 mn/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago1.00.23.80.63.40.72.60.72.70.61.20.42.10.2
11-20 years ago0.30.12.00.43.20.71.70.53.30.70.80.31.50.2
21-30 years ago0.10.11.60.42.00.61.40.52.80.62.00.51.30.1
31-40 years ago0.10.11.00.31.40.51.40.52.80.62.00.51.10.1
41-50 years ago0.0.1.60.42.30.61.30.52.30.61.30.41.10.1
over 50 years ago0.30.14.80.75.20.911.81.45.80.912.91.25.10.3
total1.90.314.81.117.61.520.21.719.71.520.21.512.20.4
over 1000 mn/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
less than 10 years ago0.10.10.40.21.50.50.50.30.70.31.40.40.60.1
11-20 years ago0.10.10.20.10.60.30.40.30.70.31.40.40.40.1
21-30 years ago0.0.0.40.21.30.40.20.21.50.52.00.50.70.1
31-40 years ago0.0.0.10.11.40.50.70.31.40.42.70.60.80.1
41-50 years ago0.0.0.0.0.80.40.50.31.00.43.00.60.60.1
over 50 years ago0.10.11.50.42.20.64.10.86.80.925.41.65.00.3
total0.20.12.60.57.81.16.31.012.11.235.81.78.20.3
totaln/a0.10.10.0.0.0.0.0.0.0.0.0.0.00.0
less than 10 years ago65.21.042.11.637.31.922.41.722.81.611.81.241.80.6
11-20 years ago18.00.821.01.322.51.612.81.420.21.56.60.917.30.5
21-30 years ago6.90.510.91.011.31.38.61.215.11.37.91.09.40.4
31-40 years ago4.00.46.70.87.71.08.41.211.31.28.71.06.80.3
41-50 years ago2.20.36.00.75.50.98.81.26.60.98.91.05.30.3
over 50 years ago3.70.413.41.115.71.439.12.024.01.656.01.819.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 21.06.2020 #816889/283220
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