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NFI4
forest area
time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
less than 10 years ago17.61012.41251.1659.8513.512154.53
11-20 years ago7.5163.72325.7841.177.31685.25
21-30 years ago3.2252.03110.61331.689.41456.76
31-40 years ago2.9261.0457.41620.2108.91540.37
41-50 years ago1.6350.4715.31918.01011.01336.27
over 50 years ago5.3191.14110.91364.0570.74152.03
total37.9620.79111.03234.72120.72525.01
© WSL, Swiss National Forest Inventory, 11.07.2020 #845435/311766
NFI3
forest area
time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
less than 10 years ago19.0912.71159.3563.8514.111168.83
11-20 years ago6.0173.92121.7943.568.91483.94
21-30 years ago5.4182.32812.71228.2813.21161.75
31-40 years ago2.1290.7507.51521.8910.31342.46
41-50 years ago1.6330.5585.01820.1911.21238.47
over 50 years ago3.6221.23811.71267.0576.14159.63
total37.6621.39117.93244.32133.72554.91
© WSL, Swiss National Forest Inventory, 11.07.2020 #845436/311767
NFI4
forest area
time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest (including shrub forest)
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
less than 10 years ago17.61012.41251.3660.2513.712155.33
11-20 years ago7.5163.72325.7841.177.41685.45
21-30 years ago3.2252.03110.61332.289.61457.56
31-40 years ago2.9261.0457.41621.2910.71343.17
41-50 years ago1.6350.4715.31918.01011.71337.07
over 50 years ago5.3191.14111.11365.6574.04157.13
total37.9620.79111.43238.32127.22535.51
© WSL, Swiss National Forest Inventory, 11.07.2020 #845437/311768
NFI4
forest area
time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
less than 10 years ago17.61012.41251.3660.0513.712155.13
11-20 years ago7.5163.72325.9841.377.41685.85
21-30 years ago3.2252.03110.41431.889.41456.76
31-40 years ago2.9261.0457.81621.8910.71344.17
41-50 years ago1.6350.4715.51918.01012.11237.67
over 50 years ago5.3191.14112.71270.8579.14169.13
total37.9620.79113.73243.72132.52548.51
© WSL, Swiss National Forest Inventory, 11.07.2020 #845438/311769
NFI4
forest area
time of last treatment (classes of 10 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
time of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
less than 10 years ago17.61012.41251.5660.8513.912156.33
11-20 years ago7.6163.72326.1841.577.41686.45
21-30 years ago3.2252.03110.61332.879.61458.16
31-40 years ago2.9261.0457.81622.0910.91344.57
41-50 years ago1.6350.4715.51918.21012.11237.87
over 50 years ago5.3191.33812.71272.3579.54171.13
total38.1620.99114.33247.62133.52554.31
© WSL, Swiss National Forest Inventory, 11.07.2020 #845439/311770
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: canton
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.0.0.0.0.0.0.30.30.0.1.21.2..0.0.0.0.1.81.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.50.30.0.0.0.0.0.0.0.0.0.0.20.1
high road infrastructure, ground based88.710.748.413.228.911.522.12.156.711.924.25.1..8.74.24.20.947.86.520.66.577.19.126.311.410.64.624.03.550.036.159.613.19.03.867.013.42.90.82.42.422.14.14.11.032.012.666.116.414.00.7
medium road infrastructure, ground based0.0.10.97.244.512.317.81.920.99.512.23.9..6.63.73.10.835.56.319.36.618.98.40.0.11.14.615.72.850.036.127.211.94.92.823.912.22.20.72.52.415.23.54.51.114.39.50.0.9.30.6
low road infrastructure, ground based0.0.14.99.75.35.310.91.60.0.9.23.6..9.74.511.81.54.72.65.63.90.0.4.74.70.0.11.02.60.0.0.0.6.13.00.0.8.61.47.74.46.92.511.41.60.0.0.0.9.40.6
high road infrastructure, supported by cable or helicopter11.310.70.0.15.98.627.72.322.410.137.15.7..40.27.014.91.78.63.727.77.54.04.043.112.230.17.028.83.80.0.13.29.054.26.59.18.715.31.829.47.334.04.725.02.253.713.733.916.423.30.9
medium road infrastructure, supported by cable or helicopter0.0.25.911.75.35.313.91.70.0.11.73.7..30.96.926.32.11.51.520.96.60.0.25.911.339.77.313.32.90.0.0.0.16.34.80.0.30.82.336.27.613.83.425.42.20.0.0.0.21.50.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.7.21.30.0.4.42.5..4.02.739.72.30.0.5.84.00.0.0.0.8.54.17.22.30.0.0.0.9.53.70.0.39.72.321.86.68.02.729.72.30.0.0.0.22.20.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845440/311771
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: canton
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.0.0.0.0.0.0.30.30.0.1.21.2..0.0.0.0.1.81.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.0.0.0.0.0.0.0.0.0.20.1
high road infrastructure, ground based88.710.748.413.228.911.521.92.159.311.424.55.0..8.14.04.10.947.06.420.16.377.19.131.311.412.14.822.23.250.036.159.613.17.93.467.013.43.10.82.12.122.14.04.21.032.012.666.116.413.40.6
medium road infrastructure, ground based0.0.10.97.244.512.317.51.919.79.011.73.7..6.13.53.00.736.66.318.86.518.98.40.0.10.14.114.22.550.036.127.211.95.82.923.912.22.30.72.22.114.63.44.61.014.39.50.0.8.80.5
low road infrastructure, ground based0.0.14.99.75.35.311.11.60.0.8.83.5..9.14.313.01.54.62.65.53.80.0.4.44.40.0.9.92.40.0.0.0.6.82.90.0.8.51.38.54.26.72.411.21.60.0.0.0.9.60.6
high road infrastructure, supported by cable or helicopter11.310.70.0.15.98.627.62.221.19.637.05.6..37.76.714.21.58.53.626.97.34.04.040.111.629.46.627.33.60.0.13.29.055.26.19.18.714.61.625.56.534.64.624.32.153.713.733.916.422.50.8
medium road infrastructure, supported by cable or helicopter0.0.25.911.75.35.313.71.70.0.11.23.6..33.26.825.81.91.51.523.06.80.0.24.110.739.47.017.73.10.0.0.0.14.34.20.0.29.42.137.17.113.33.325.92.20.0.0.0.21.90.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.8.01.40.0.5.62.7..5.73.239.92.10.0.5.73.90.0.0.0.9.04.08.62.30.0.0.0.9.93.60.0.41.62.224.76.38.72.829.82.30.0.0.0.23.70.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845441/311772
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. 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
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
n/a0.70.50.20.20.0.0.0.0.0.0.40.20.20.1
high road infrastructure, ground based51.22.915.81.617.12.04.31.04.21.03.40.713.60.7
medium road infrastructure, ground based27.52.612.51.411.31.64.41.03.60.91.90.69.00.6
low road infrastructure, ground based5.21.39.41.38.61.511.21.614.51.88.31.19.60.6
high road infrastructure, supported by cable or helicopter13.52.033.52.034.12.524.72.116.51.913.41.422.70.8
medium road infrastructure, supported by cable or helicopter2.10.819.21.720.12.125.62.226.32.228.81.921.70.8
low road infrastructure, supported by cable or helicopter0.0.9.51.38.81.529.82.334.92.443.92.023.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845442/311773
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: canton
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.0.0.0.0.0.0.30.30.0.1.21.2..0.0.0.0.1.81.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.0.0.0.0.0.0.0.0.0.0.20.1
high road infrastructure, ground based88.710.748.413.228.911.521.82.159.311.424.55.0..8.34.14.30.947.86.520.16.377.19.131.311.410.54.522.93.350.036.159.613.18.13.567.013.43.10.82.22.222.34.04.31.032.012.666.116.413.50.7
medium road infrastructure, ground based0.0.10.97.244.512.317.61.919.79.011.73.7..6.33.62.90.735.56.318.86.518.98.40.0.10.94.514.62.650.036.127.211.96.02.923.912.22.20.72.22.214.83.44.41.014.39.50.0.8.80.5
low road infrastructure, ground based0.0.14.99.75.35.311.11.60.0.8.83.5..9.34.412.81.54.72.65.53.80.0.4.44.40.0.10.22.50.0.0.0.7.03.00.0.8.51.38.94.36.72.511.21.60.0.0.0.9.60.6
high road infrastructure, supported by cable or helicopter11.310.70.0.15.98.627.32.221.19.637.05.6..38.76.914.31.58.63.726.97.34.04.040.111.629.76.927.53.70.0.13.29.053.96.29.18.715.01.626.46.734.04.624.72.153.713.733.916.422.60.8
medium road infrastructure, supported by cable or helicopter0.0.25.911.75.35.313.81.70.0.11.23.6..31.66.825.91.91.51.523.06.80.0.24.110.739.17.216.83.10.0.0.0.14.84.40.0.29.92.138.57.313.43.325.62.20.0.0.0.21.80.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.8.11.40.0.5.62.7..5.83.339.82.10.0.5.73.90.0.0.0.9.84.38.02.30.0.0.0.10.23.70.0.40.92.221.86.28.82.829.82.30.0.0.0.23.50.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845443/311774
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: economic region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.60.60.0.0.0.2.02.00.0.0.70.70.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.30.20.1
high road infrastructure, ground based47.23.965.99.358.610.147.27.261.28.815.23.423.62.826.13.35.01.73.42.412.93.44.11.04.21.13.10.814.10.7
medium road infrastructure, ground based27.63.526.28.623.98.632.56.719.57.210.22.717.52.517.22.88.12.11.81.78.32.74.51.13.71.02.00.69.40.6
low road infrastructure, ground based4.51.70.0.17.57.94.12.96.64.513.73.26.61.78.42.110.22.36.93.310.03.211.41.612.91.88.51.29.40.6
high road infrastructure, supported by cable or helicopter18.23.07.95.30.0.8.24.012.65.933.04.233.13.134.23.635.23.735.96.336.64.925.02.217.12.013.81.523.30.9
medium road infrastructure, supported by cable or helicopter1.91.10.0.0.0.5.93.30.0.16.13.416.82.512.32.526.23.430.36.122.14.325.42.226.72.329.62.021.40.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.11.22.92.40.91.81.015.32.821.75.410.33.129.72.335.52.542.62.122.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845444/311775
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
n/a0.70.50.20.20.0.0.0.0.0.0.40.30.20.1
high road infrastructure, ground based51.22.915.61.618.02.14.11.04.21.13.10.814.00.7
medium road infrastructure, ground based27.32.612.91.511.81.74.51.13.71.02.00.69.50.6
low road infrastructure, ground based5.21.39.31.38.51.511.41.612.91.88.51.29.40.6
high road infrastructure, supported by cable or helicopter13.52.034.12.135.22.625.02.217.12.013.81.523.40.9
medium road infrastructure, supported by cable or helicopter2.10.819.41.718.52.125.42.226.72.329.62.021.40.8
low road infrastructure, supported by cable or helicopter0.0.8.51.27.91.529.72.335.52.542.62.122.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845445/311776
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %±
n/a0.70.50.20.20.0.0.0.0.0.0.30.20.20.1
high road infrastructure, ground based51.22.915.81.616.61.94.21.04.01.03.30.713.40.6
medium road infrastructure, ground based27.62.612.31.411.01.64.61.03.70.92.00.68.90.5
low road infrastructure, ground based5.11.39.31.38.31.511.21.614.71.78.31.19.60.6
high road infrastructure, supported by cable or helicopter13.42.033.72.034.22.524.32.116.41.813.11.422.60.8
medium road infrastructure, supported by cable or helicopter2.10.819.31.720.42.125.92.226.22.228.41.821.70.8
low road infrastructure, supported by cable or helicopter0.0.9.41.29.41.529.82.335.02.344.52.023.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845446/311777
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: production region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %±
n/a0.50.51.01.00.20.20.0.0.40.20.20.1
high road infrastructure, ground based49.73.653.84.922.51.85.10.63.40.713.60.7
medium road infrastructure, ground based27.73.227.14.415.71.64.80.61.90.69.00.6
low road infrastructure, ground based3.81.47.72.68.41.212.01.08.31.19.60.6
high road infrastructure, supported by cable or helicopter16.72.77.62.633.32.024.51.313.41.422.60.8
medium road infrastructure, supported by cable or helicopter1.60.92.81.615.31.526.01.328.81.921.60.8
low road infrastructure, supported by cable or helicopter0.0.0.0.4.60.927.61.343.92.023.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845447/311778
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: production region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %±
n/a0.50.51.01.00.20.20.0.0.30.20.20.1
high road infrastructure, ground based49.43.654.34.922.51.85.00.63.30.713.40.6
medium road infrastructure, ground based28.13.226.84.315.51.64.90.62.00.69.00.6
low road infrastructure, ground based3.81.47.72.68.31.212.00.98.31.19.60.6
high road infrastructure, supported by cable or helicopter16.62.77.52.633.22.024.51.213.11.422.50.8
medium road infrastructure, supported by cable or helicopter1.60.92.81.615.71.526.01.328.41.821.70.8
low road infrastructure, supported by cable or helicopter0.0.0.0.4.60.927.71.344.52.023.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845448/311779
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: economic region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.60.60.0.0.0.2.02.00.0.0.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.20.20.1
high road infrastructure, ground based46.93.965.99.358.610.148.37.161.28.815.33.324.12.825.43.25.31.72.82.011.63.14.21.04.01.03.30.713.40.6
medium road infrastructure, ground based28.43.526.28.623.98.631.96.619.57.29.72.616.92.516.92.77.62.01.41.47.52.44.61.03.70.92.00.68.90.5
low road infrastructure, ground based4.51.60.0.17.57.94.02.86.64.513.13.16.41.68.02.010.72.38.43.39.02.911.21.614.71.78.31.19.70.6
high road infrastructure, supported by cable or helicopter17.83.07.95.30.0.8.13.912.65.933.24.232.63.033.83.534.33.635.95.633.84.524.32.116.41.813.11.422.50.8
medium road infrastructure, supported by cable or helicopter1.81.10.0.0.0.5.83.30.0.15.43.317.42.414.12.525.23.328.55.325.64.225.92.226.22.228.41.821.70.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.12.63.02.71.01.71.016.82.823.04.912.63.229.82.335.02.344.52.023.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845449/311780
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: economic region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
n/a0.60.60.0.0.0.2.02.00.0.0.60.60.0.0.0.0.0.0.0.0.0.0.0.0.0.0.40.20.20.1
high road infrastructure, ground based47.23.965.99.358.610.147.27.261.28.815.33.324.02.825.63.25.41.83.02.112.13.24.31.04.21.03.40.713.60.7
medium road infrastructure, ground based27.93.526.28.623.98.632.56.719.57.29.72.617.22.517.02.77.72.01.51.57.82.54.41.03.60.91.90.68.90.6
low road infrastructure, ground based4.51.60.0.17.57.94.12.96.64.513.13.16.51.68.12.010.92.49.03.59.33.011.21.614.51.88.31.19.70.6
high road infrastructure, supported by cable or helicopter18.03.07.95.30.0.8.24.012.65.933.24.232.83.134.03.533.53.634.25.734.34.724.72.116.51.913.41.422.60.8
medium road infrastructure, supported by cable or helicopter1.81.10.0.0.0.5.93.30.0.15.43.316.92.413.62.525.53.330.55.624.44.225.62.226.32.228.81.921.70.8
low road infrastructure, supported by cable or helicopter0.0.0.0.0.0.0.0.0.0.12.63.02.71.01.71.017.02.921.75.012.23.229.82.334.92.443.92.023.30.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845450/311781
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: production region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest %± %± %± %± %± %±
n/a0.50.51.01.00.20.20.0.0.40.30.20.1
high road infrastructure, ground based49.73.653.84.922.51.85.10.73.10.814.10.7
medium road infrastructure, ground based27.43.227.14.416.01.65.00.72.00.69.50.6
low road infrastructure, ground based3.91.47.72.68.71.211.31.08.51.29.40.6
high road infrastructure, supported by cable or helicopter16.92.77.62.633.52.125.51.313.81.523.30.9
medium road infrastructure, supported by cable or helicopter1.60.92.81.615.01.525.91.329.62.021.40.8
low road infrastructure, supported by cable or helicopter0.0.0.0.4.20.927.21.442.62.122.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845451/311782
NFI3
forest area
watershed · forest type (3 classes)
unit of reference: production region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
watershedforest type (3 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
outside watershedaccessible forest without shrub forest144.82186.12183.22336.41133.02983.41
inaccessible forest without shrub forest0.9451.2385.31818.21012.71138.37
shrub forest0.0.0.0.3.22440.1719.5962.85
total145.72187.32191.72394.71165.221084.61
within watershedaccessible forest without shrub forest54.1541.7635.0740.7619.99191.43
inaccessible forest without shrub forest0.21000.0.0.7501.2380.3712.527
shrub forest0.0.0.0.0.21003.9211.9306.117
total54.3541.7635.9745.9622.28199.93
totalaccessible forest without shrub forest198.91227.71218.21377.01152.921174.80
inaccessible forest without shrub forest1.1411.2386.01719.4913.01140.86
shrub forest0.0.0.0.3.42344.1621.4968.95
total200.01229.01227.61440.51187.411284.50
© WSL, Swiss National Forest Inventory, 19.06.2020 #845452/311783
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: canton
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
degree of transportation system density by method of timber harvest
n/ahigh road infrastructure, ground basedmedium road infrastructure, ground basedlow road infrastructure, ground basedhigh road infrastructure, supported by cable or helicoptermedium road infrastructure, supported by cable or helicopterlow road infrastructure, supported by cable or helicoptertotal
canton1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0.0.1.6350.0.0.0.0.21000.0.0.0.1.833
AI0.0.1.4340.3670.4710.0.0.7490.0.2.820
AR0.0.0.8501.3330.21000.5550.21000.0.2.820
BE0.210017.21013.8128.51521.5910.8135.61977.64
BL/BS0.0.2.2310.8500.0.0.9500.0.0.0.3.922
FR0.21003.3231.7331.3415.1181.6330.65813.810
GE0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
GL0.0.0.8500.6580.9493.6202.7250.4708.911
GR0.0.3.8232.82710.71313.51223.8835.9790.33
JU0.21005.5174.1210.5561.0440.21000.0.11.411
LU0.0.1.5351.4370.4712.1311.6350.4717.415
NE0.0.3.0240.7490.0.0.21000.0.0.0.3.921
NW0.0.1.0490.0.0.21001.6321.0490.0.3.720
OW0.0.1.0451.0430.0.2.7263.6210.8509.011
SG0.0.6.9164.5183.2258.3153.8232.13328.76
SH0.0.0.21000.21000.0.0.0.0.0.0.0.0.469
SO0.0.1.8330.8510.0.0.4720.0.0.0.3.125
SZ0.0.1.1440.6580.7506.5162.0311.14012.010
TG0.0.1.6310.6580.0.0.21000.0.0.0.2.426
TI0.4712.4291.9337.21612.81225.7833.2783.63
UR0.0.0.21000.21000.6572.4272.9241.8328.111
VD0.0.4.5203.1251.4386.9162.8261.63520.29
VS0.0.3.0253.3248.51518.6918.9922.1974.53
ZG0.0.0.8490.4670.0.1.3290.0.0.0.2.520
ZH0.0.1.1440.0.0.0.0.6580.0.0.0.1.635
Switzerland1.04566.5544.0644.57110.74102.24105.54474.41
© WSL, Swiss National Forest Inventory, 11.07.2020 #845453/311784
NFI3
forest area
watershed · basal area of conifers (classified)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
watershed
outside watershedwithin watershedtotal
economic regionbasal area of conifers (classified)1000 ha± %1000 ha± %1000 ha± %
Western Juran/a2.8271.3404.022
0 - 10%16.7107.31624.08
11 - 50%24.7810.61335.36
51 - 90%38.6612.21250.85
91 - 100%26.689.81436.46
total109.3341.26150.51
Eastern Juran/a1.9330.8482.726
0 - 10%12.9114.22217.29
11 - 50%10.5134.22114.710
51 - 90%6.0182.6288.614
91 - 100%3.0260.4713.424
total34.3512.31146.62
Western Plateaun/a1.6330.4702.029
0 - 10%13.2111.63514.810
11 - 50%9.6131.04410.613
51 - 90%9.3142.23111.512
91 - 100%7.6152.72710.213
total41.247.91549.12
Central Plateaun/a2.1301.1443.223
0 - 10%10.2134.91915.010
11 - 50%9.2144.02113.211
51 - 90%16.3104.62020.98
91 - 100%13.6113.22416.89
total51.3317.8969.11
Eastern Plateaun/a3.5220.21003.721
0 - 10%21.094.72025.78
11 - 50%21.894.62126.48
51 - 90%28.074.52132.57
91 - 100%17.6101.73319.39
total91.9215.710107.61
Western Pre-Alpsn/a1.4410.31001.737
0 - 10%3.9230.9514.820
11 - 50%3.3230.6593.922
51 - 90%6.3161.9308.214
91 - 100%20.284.42124.77
total35.248.21543.33
Central Pre-Alpsn/a2.8240.21003.024
0 - 10%8.7150.21008.915
11 - 50%10.4141.63712.012
51 - 90%22.294.32226.58
91 - 100%39.769.31449.05
total83.8315.61199.42
Eastern Pre-Alpsn/a1.9321.1443.025
0 - 10%7.1160.7587.815
11 - 50%10.5132.92513.311
51 - 90%19.393.12422.48
91 - 100%22.083.92325.88
total60.8311.61272.32
Northwestern Alpsn/a3.3240.21003.524
0 - 10%7.1150.6587.715
11 - 50%5.8180.6586.417
51 - 90%8.9141.53810.413
91 - 100%24.476.61731.06
total49.449.51458.93
Central Alpsn/a1.4370.4711.832
0 - 10%2.2290.6582.726
11 - 50%3.3210.0.3.321
51 - 90%4.7191.0445.716
91 - 100%10.2121.73311.910
total21.763.72225.44
Northeastern Alpsn/a1.9310.4702.228
0 - 10%4.7190.4725.118
11 - 50%4.3211.1415.418
51 - 90%4.9190.8515.617
91 - 100%10.2121.24111.411
total25.963.82229.85
Southwestern Alpsn/a5.0200.0.5.020
0 - 10%11.0120.47111.512
11 - 50%5.5180.21005.718
51 - 90%12.2120.47112.612
91 - 100%70.448.71579.13
total104.229.714113.82
Southeastern Alpsn/a3.7230.4714.122
0 - 10%7.5160.4717.915
11 - 50%4.6210.21004.820
51 - 90%7.6151.4388.914
91 - 100%105.5311.713117.22
total128.8214.011142.82
Southern Alpsn/a4.3210.6584.820
0 - 10%63.5411.31374.84
11 - 50%7.7160.4718.115
51 - 90%8.8142.32911.113
91 - 100%45.465.81851.25
total129.6220.49150.02
Switzerlandn/a37.477.31744.76
0 - 10%189.7338.27227.92
11 - 50%131.1432.18163.23
51 - 90%193.1342.67235.73
91 - 100%416.1271.15487.12
total967.41191.231158.51
© WSL, Swiss National Forest Inventory, 19.06.2020 #845454/311785
NFI4
forest area
degree of cover of assured regeneration · altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. 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
degree of cover of assured regenerationaltitudinal vegetation zone %± %± %± %± %± %± %±
less than 1%upper subalpine0.0.0.40.30.30.31.50.64.31.00.60.31.20.2
lower subalpine0.40.42.20.62.80.93.90.97.81.32.10.63.20.3
upper montane0.70.51.30.56.31.31.20.55.41.14.20.83.20.3
lower montane0.70.50.40.32.10.70.50.30.80.41.50.51.00.2
colline/submontane1.00.60.0.0.0.0.20.20.30.32.00.60.60.2
total2.81.04.20.911.51.77.31.318.41.910.41.39.20.6
1-4%upper subalpine0.0.0.40.30.30.36.71.24.41.03.40.72.60.3
lower subalpine0.40.45.51.03.61.010.91.59.81.54.40.85.90.5
upper montane1.00.64.00.87.61.45.11.16.41.27.81.15.60.4
lower montane3.71.13.60.84.11.00.90.51.70.65.50.93.40.4
colline/submontane3.11.00.60.30.80.41.70.60.80.45.50.92.20.3
total8.21.613.91.516.32.025.42.223.12.126.61.819.70.8
5-9%upper subalpine0.0.0.20.20.0.3.81.01.70.62.10.61.40.2
lower subalpine0.40.47.21.12.50.87.81.38.01.43.60.85.20.4
upper montane2.81.06.81.14.71.15.61.15.51.16.51.05.60.4
lower montane6.71.52.20.63.00.92.20.71.70.74.40.83.20.3
colline/submontane6.71.41.20.51.10.51.70.60.30.37.11.03.10.3
total16.62.217.51.611.31.721.22.017.31.923.61.718.50.8
10-25%upper subalpine0.0.0.20.20.0.3.50.94.61.01.00.41.50.2
lower subalpine0.30.39.91.34.81.111.41.68.11.43.60.86.70.5
upper montane3.91.116.71.610.21.69.11.48.51.48.51.110.00.6
lower montane14.42.07.81.29.51.53.30.93.40.93.90.86.50.5
colline/submontane12.81.92.30.74.21.03.70.91.70.68.91.15.40.4
total31.42.736.92.128.72.431.12.326.42.225.81.830.10.9
26-50%upper subalpine0.0.0.0.0.0.0.30.30.70.40.30.20.20.1
lower subalpine0.0.2.80.72.30.84.11.05.21.11.60.52.70.3
upper montane3.81.17.91.28.11.44.01.03.50.93.10.75.10.4
lower montane10.11.73.20.86.71.33.10.91.90.71.50.53.80.4
colline/submontane7.11.51.60.54.71.11.60.60.50.42.80.72.70.3
total21.02.415.41.621.82.213.01.711.91.69.41.214.60.7
51-75%upper subalpine0.0.0.0.0.0.0.0.0.30.30.0.0.00.0
lower subalpine0.0.1.70.61.40.60.80.50.50.41.00.41.00.2
upper montane1.80.82.80.72.20.80.50.31.60.61.00.41.60.3
lower montane5.41.32.30.72.60.90.50.30.30.30.20.21.60.3
colline/submontane7.81.61.00.40.60.40.30.30.0.0.70.31.40.2
total15.02.17.81.26.91.42.00.72.60.82.80.75.60.5
76-100%upper subalpine0.0.0.0.0.0.0.0.0.0.0.0.0.0.
lower subalpine0.0.0.60.30.0.0.0.0.0.0.20.20.20.1
upper montane1.10.61.70.60.30.30.0.0.30.20.30.20.60.2
lower montane2.30.91.20.52.60.80.0.0.0.0.20.20.90.2
colline/submontane1.70.80.80.40.50.40.0.0.0.0.70.30.60.2
total5.11.34.20.93.41.00.0.0.30.21.30.52.30.3
totalupper subalpine0.0.1.10.50.60.415.81.816.01.87.51.07.00.5
lower subalpine1.40.729.81.917.52.039.02.339.52.416.61.524.80.8
upper montane15.12.141.12.139.42.525.52.131.22.331.31.831.70.9
lower montane43.42.920.61.730.72.410.51.59.81.517.11.520.50.8
colline/submontane40.12.87.41.111.81.79.31.43.50.927.51.616.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845455/311786
NFI4
forest area
urgency of next treatment (interview survey) · type of next treatment (interview survey)
unit of reference: economic region
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
economic region
Western JuraEastern JuraWestern PlateauCentral PlateauEastern PlateauWestern Pre-AlpsCentral Pre-AlpsEastern Pre-AlpsNorthwestern AlpsCentral AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
urgency of next treatment (interview survey)type of next treatment (interview survey) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
0-1 yearno treatment0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending0.0.0.0.12.96.92.42.43.53.51.11.11.20.70.60.60.60.60.0.1.71.20.0.0.0.0.20.20.60.2
thinning3.01.33.93.94.64.57.93.83.53.50.0.0.90.62.81.20.0.3.02.10.0.0.0.0.0.0.20.20.90.2
establishment cut3.01.30.0.3.83.82.02.00.0.1.30.90.90.71.60.91.10.80.0.1.71.20.50.32.60.80.0.1.10.2
removal cut0.60.60.0.0.0.2.02.00.0.0.90.90.0.0.0.0.0.0.0.0.90.90.20.20.50.40.60.30.40.1
plentering1.30.90.0.0.0.0.0.0.0.1.41.01.40.80.50.50.0.0.0.0.0.0.0.0.30.30.0.0.40.1
thinning of mountain forest1.10.80.0.0.0.2.12.10.0.0.80.81.80.90.0.1.20.85.72.80.0.3.00.80.30.21.30.51.30.2
coppice cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.0.0.0.0.0.0.0.0.00.0
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling1.30.90.0.0.0.0.0.0.0.1.61.10.0.0.0.2.41.20.0.0.0.0.0.0.0.0.0.0.30.1
plentering in broadleaf forest0.60.63.73.60.0.0.0.0.0.0.0.0.50.50.50.50.0.0.0.1.61.10.0.0.0.0.0.0.20.1
tending of forest edge0.0.0.0.3.83.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.10.1
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.70.70.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.30.30.0.0.0.0.10.1
total11.62.57.65.225.18.916.45.37.04.87.02.36.71.76.01.85.91.88.73.45.92.23.91.03.71.02.40.65.40.4
2-5 yearsno treatment0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending2.51.23.83.83.83.85.73.26.64.53.21.82.71.03.51.44.71.66.13.04.72.10.50.42.30.70.50.32.30.3
thinning5.91.819.17.78.45.76.23.512.25.84.61.92.21.04.01.51.71.04.42.53.92.00.80.40.20.21.20.42.40.3
establishment cut6.21.97.65.23.83.820.35.70.0.5.92.13.31.25.41.71.20.80.0.0.80.82.00.75.91.21.00.43.40.4
removal cut2.51.23.73.60.0.0.0.0.0.0.80.80.80.60.70.70.0.1.41.40.80.80.0.0.0.0.40.30.50.1
plentering2.41.20.0.0.0.4.12.90.0.1.41.04.61.41.10.80.0.0.0.0.0.0.30.30.20.20.0.0.90.2
thinning of mountain forest1.91.10.0.0.0.4.12.90.0.2.21.24.71.42.01.05.11.65.92.96.02.44.11.02.50.82.70.73.30.4
coppice cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.00.0
conversion0.0.0.0.0.0.0.0.0.0.0.0.1.00.70.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.1
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling0.60.63.73.60.0.0.0.3.02.90.80.80.50.50.0.0.0.0.0.0.80.80.80.40.0.0.20.20.40.1
plentering in broadleaf forest1.20.80.0.4.03.94.12.910.65.70.0.0.50.55.41.70.0.0.0.8.82.90.0.0.20.20.0.1.10.2
tending of forest edge0.0.3.63.60.0.4.43.10.0.0.0.0.90.60.50.50.0.0.0.0.0.0.0.0.80.40.0.0.40.1
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments1.20.80.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.0.0.0.0.0.0.20.20.20.1
total24.43.341.69.720.08.149.07.232.48.518.83.521.62.722.73.112.72.517.84.725.94.48.41.412.11.66.31.015.00.7
6-10 yearsno treatment0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending0.60.60.0.0.0.2.42.40.0.6.52.44.31.32.41.24.11.54.72.62.21.51.30.61.30.60.30.21.90.3
thinning10.92.48.65.94.64.56.03.417.86.65.01.85.01.59.02.14.11.52.82.02.91.71.20.52.70.82.10.64.00.4
establishment cut5.51.80.0.21.38.54.02.83.53.52.91.50.90.64.31.53.21.31.41.42.91.73.80.93.00.80.90.42.80.3
removal cut0.0.3.93.94.64.52.02.00.0.0.60.60.40.41.71.01.71.00.0.0.0.0.0.0.80.40.70.40.70.2
plentering3.71.50.0.0.0.0.0.3.53.51.71.29.62.01.60.90.0.0.0.0.0.0.0.0.30.30.20.21.50.2
thinning of mountain forest1.81.00.0.0.0.0.0.0.0.13.03.08.61.82.61.27.72.020.65.07.32.57.01.33.60.94.10.85.70.5
coppice cut1.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.00.40.30.1
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.50.51.00.70.0.0.0.0.0.0.0.0.0.0.20.20.20.1
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.0.20.20.10.1
plentering in broadleaf forest1.30.90.0.0.0.6.03.413.36.20.0.1.00.74.41.50.0.0.0.1.71.20.0.0.0.0.0.0.80.2
tending of forest edge0.0.0.0.0.0.2.02.00.0.0.0.0.0.1.00.70.0.0.0.0.0.0.20.20.0.0.0.0.10.1
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments1.30.90.0.0.0.0.0.0.0.0.80.80.80.50.50.50.0.0.0.0.0.1.00.50.30.30.70.30.60.1
total26.13.412.66.830.49.522.56.038.28.830.54.231.03.128.63.320.83.029.55.517.03.714.81.811.81.610.41.318.70.8
11-20 yearsno treatment0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending0.60.60.0.3.93.81.81.86.94.72.31.30.80.51.10.82.31.11.51.52.61.51.00.52.00.70.0.1.20.2
thinning4.11.511.86.44.64.50.0.3.02.91.71.22.21.05.31.62.91.31.41.41.01.02.60.81.50.61.90.62.50.3
establishment cut5.41.70.0.12.26.70.0.0.0.5.52.12.81.13.61.33.31.33.22.10.80.83.40.93.20.91.20.52.90.3
removal cut1.20.93.73.63.83.82.02.00.0.1.11.11.50.80.0.0.0.2.81.90.90.90.20.20.30.30.50.30.70.2
plentering0.60.60.0.0.0.2.12.10.0.2.61.35.01.41.10.80.60.60.0.1.01.00.0.0.50.30.0.0.90.2
thinning of mountain forest3.11.40.0.0.0.0.0.0.0.7.52.210.82.05.41.715.12.716.04.52.61.512.61.63.70.95.60.97.30.5
coppice cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.1.40.50.30.1
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.50.51.10.80.0.0.0.0.0.0.0.0.0.0.40.20.20.1
transformation0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.60.60.0.0.0.0.0.0.0.0.0.0.20.20.10.1
sanitary felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.20.80.50.50.0.0.0.0.0.0.0.0.30.20.20.1
plentering in broadleaf forest0.70.73.93.90.0.0.0.6.54.50.0.0.50.53.11.20.0.0.0.5.02.20.0.0.0.0.0.0.60.2
tending of forest edge0.0.0.0.0.0.0.0.0.0.0.0.0.40.40.0.0.0.0.0.0.90.90.0.0.0.0.0.0.10.1
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.60.60.0.0.0.0.0.0.0.0.80.80.0.0.50.50.60.61.41.40.0.1.00.50.70.40.20.20.50.1
total16.22.919.47.824.58.85.93.316.46.722.13.624.42.823.03.125.33.326.25.314.93.521.12.012.01.611.61.317.50.7
> 20 yearsno treatment21.73.218.97.70.0.6.23.55.94.121.63.716.32.319.73.035.33.617.84.736.34.751.82.560.52.469.41.943.40.9
tending0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
thinning0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
establishment cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
removal cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
plentering0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
thinning of mountain forest0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
coppice cut0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
conversion0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
transformation0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
sanitary felling0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
plentering in broadleaf forest0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
tending of forest edge0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total21.73.218.97.70.0.6.23.55.94.121.63.716.32.319.73.035.33.617.84.736.34.751.82.560.52.469.41.943.40.9
totalno treatment21.73.218.97.70.0.6.23.55.94.121.63.716.32.319.73.035.33.617.84.736.34.751.82.560.52.469.41.943.40.9
tending3.71.53.83.820.68.212.34.717.06.913.13.19.01.77.71.911.72.412.34.011.23.02.80.85.61.11.00.46.00.5
thinning23.93.343.59.822.08.620.15.736.68.511.32.810.32.021.13.08.72.211.53.97.92.74.51.04.51.05.30.99.80.6
establishment cut20.03.17.65.241.110.126.46.23.53.515.63.27.91.814.82.68.82.14.52.56.22.39.71.514.61.83.10.710.30.6
removal cut4.31.611.36.28.45.76.03.40.0.3.31.72.71.12.41.21.71.04.22.42.61.50.50.31.60.62.10.62.30.3
plentering8.02.10.0.0.0.6.23.53.53.57.12.220.72.74.41.50.60.60.0.1.01.00.30.31.20.60.20.23.60.4
thinning of mountain forest7.92.10.0.0.0.6.23.50.0.23.43.726.02.810.02.229.13.448.36.215.93.626.72.210.11.513.71.417.70.7
coppice cut1.20.80.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.20.20.0.2.60.70.70.2
conversion0.0.0.0.0.0.0.0.0.0.0.0.2.01.02.11.10.60.60.0.0.0.0.0.0.0.0.50.30.50.1
transformation0.0.0.0.0.0.0.0.0.0.0.60.60.0.0.60.60.0.0.0.0.0.0.0.0.0.0.20.20.10.1
sanitary felling1.91.13.73.60.0.0.0.3.02.92.41.40.50.51.20.82.91.30.0.0.80.81.00.50.0.0.70.31.00.2
plentering in broadleaf forest3.81.57.65.24.03.910.24.330.48.40.0.2.41.113.42.50.0.0.0.17.13.70.0.0.20.20.0.2.80.3
tending of forest edge0.0.3.63.63.83.86.43.60.0.0.0.1.30.71.60.90.0.0.0.0.90.90.20.20.80.40.20.20.70.2
planting0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
agrosilvicultural treatments3.71.50.0.0.0.0.0.0.0.1.51.11.20.71.10.70.60.61.41.40.0.2.30.81.00.51.00.41.30.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845456/311787
NFI4
forest area
degree of transportation system density by method of timber harvest
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
degree of transportation system density by method of timber harvest1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0.4710.21000.0.0.0.0.0.0.4711.045
high road infrastructure, ground based29.6816.31111.8123.0252.9263.22566.95
medium road infrastructure, ground based15.81113.6127.8153.3242.6272.03145.16
low road infrastructure, ground based3.0269.8145.6198.5159.1148.81544.87
high road infrastructure, supported by cable or helicopter7.81635.8723.1818.6912.11214.311111.74
medium road infrastructure, supported by cable or helicopter1.24120.4912.11218.9918.91030.47102.04
low road infrastructure, supported by cable or helicopter0.0.8.9155.21922.1925.1843.86105.14
total57.85105.0365.5474.5370.74103.03476.51
© WSL, Swiss National Forest Inventory, 11.07.2020 #845457/311788
NFI3
forest area
time of last treatment (classes of 10 years)
unit of reference: canton
unit: %
unit of evaluation: protection forest perimeter SilvaProtect: accessible forest (including shrub forest)
grid: terrestrial grid NFI3
state2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZH Switzerland
time of last treatment (classes of 10 years) %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
less than 10 years ago66.315.947.511.350.612.247.82.350.011.044.75.3..39.26.823.71.749.66.346.37.868.09.454.210.052.67.239.63.7100.0.54.211.949.75.853.212.711.81.433.86.038.54.420.11.979.510.676.115.031.30.8
11-20 years ago0.0.21.38.521.79.819.21.818.18.415.33.8..16.35.019.01.614.44.517.15.920.08.116.98.112.94.921.73.00.0.5.85.617.74.332.312.16.41.021.05.523.53.913.01.66.86.80.0.15.50.7
21-30 years ago0.0.12.07.922.810.412.51.522.38.913.53.6..13.84.914.21.416.94.617.26.00.0.9.16.00.0.11.82.40.0.10.97.512.03.814.59.49.11.21.51.510.52.89.81.413.79.213.612.611.40.6
31-40 years ago10.910.313.57.60.0.6.71.15.35.211.73.3..5.73.37.41.18.13.59.74.60.0.0.0.5.13.08.12.10.0.4.44.35.02.50.0.8.01.116.94.96.82.39.81.40.0.0.0.7.70.5
41-50 years ago0.0.0.0.5.04.95.71.14.24.26.32.5..8.93.95.30.91.61.62.52.50.0.4.64.54.53.13.51.40.0.13.08.57.73.00.0.9.21.25.53.15.72.111.51.50.0.10.39.96.90.5
over 50 years ago22.814.15.75.60.0.8.11.30.0.8.43.1..16.15.030.41.99.43.77.24.011.96.415.27.125.06.215.22.70.0.11.67.87.93.10.0.55.52.121.25.415.13.335.92.30.0.0.0.27.20.8
total100.0.100.0.100.0.100.0.100.0.100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #845458/311789
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