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NFI1

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.4100....1.158..1.450
critical......2.438..2.438
less stable1.8450.41002.24110.0186.42320.713
stable1.158..0.7717.6213.93013.316
total3.3330.41002.93521.11210.31837.99
outside perimetern/a7.3229.21912.21714.2152.83545.79
critical5.52616.91410.51822.9123.93059.68
less stable74.56104.04104.24133.6451.97468.12
stable105.1495.9575.06122.8450.37449.22
total192.42225.91201.82293.52109.041022.71
totaln/a7.7229.21912.21715.3152.83547.29
critical5.52616.91410.51825.3113.93062.07
less stable76.36104.34106.34143.6458.36488.92
stable106.2495.9575.76130.4454.27462.52
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155027/141406

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a10.09.5....12.76.9....3.71.8
critical..5.95.713.67.34.24.133.319.3..6.42.4
less stable60.115.564.711.672.79.524.98.833.319.362.19.054.84.8
stable30.014.529.411.113.67.358.210.133.319.337.99.035.14.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a3.90.66.51.15.51.34.81.43.91.12.60.94.50.4
critical5.40.75.71.06.21.47.61.78.41.53.61.15.90.4
less stable42.71.452.62.251.62.836.53.145.72.747.72.845.80.9
stable47.91.535.22.136.72.751.03.242.02.746.22.843.80.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.00.66.31.15.21.25.51.43.81.02.40.84.50.4
critical5.30.75.71.06.61.47.31.68.81.53.31.05.90.4
less stable42.91.453.02.253.02.735.52.945.42.748.92.746.10.9
stable47.81.535.02.135.22.651.63.041.92.745.52.743.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155028/141407

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.4100....1.058....1.450
critical..0.41001.0580.31000.771..2.438
less stable2.2414.0305.5252.1410.7716.42320.813
stable1.1581.8451.0584.8260.7713.93013.316
total3.6326.1247.6218.2202.14110.31837.99
outside perimetern/a16.51511.9176.0244.1294.6272.83545.99
critical22.51210.5186.7236.5229.8183.93059.98
less stable178.8497.0556.3631.2953.4751.97468.72
stable200.7364.9640.0843.6749.1750.37448.72
total418.51184.32109.1385.44116.93109.041023.21
totaln/a16.81411.9176.0245.2254.6272.83547.39
critical22.51210.8187.7216.92210.5183.93062.47
less stable181.03101.0561.8633.3954.1758.36489.52
stable201.7366.7641.1848.4749.9754.27462.02
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155029/141408

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juran/a12.411.73.20.93.40.9
critical..2.90.82.90.8
less stable50.217.736.42.436.72.4
stable37.317.157.42.457.12.4
total100.0.100.0.100.0.
Eastern Juran/a..5.92.25.92.2
critical..2.51.52.51.4
less stable100.0.46.74.647.14.6
stable..44.84.644.54.6
total100.0.100.0.100.0.
Western Plateaun/a..4.21.94.21.9
critical..3.51.73.51.7
less stable..39.24.639.24.6
stable..53.14.753.14.7
total..100.0.100.0.
Central Plateaun/a..3.81.33.81.3
critical..7.71.87.71.8
less stable100.0.52.13.452.33.4
stable..36.43.336.23.2
total100.0.100.0.100.0.
Eastern Plateaun/a..4.21.14.21.1
critical..8.81.68.81.6
less stable..44.22.844.22.8
stable..42.92.842.92.8
total..100.0.100.0.
Western Pre-Alpsn/a..10.83.010.72.9
critical..12.73.212.63.2
less stable100.0.40.04.740.64.7
stable..36.44.636.14.6
total100.0.100.0.100.0.
Central Pre-Alpsn/a..5.01.44.91.3
critical..3.11.13.01.1
less stable75.021.758.13.158.33.0
stable25.021.733.82.933.72.9
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..4.71.54.71.5
critical..3.71.43.61.3
less stable66.727.349.53.649.73.6
stable33.327.342.13.642.03.6
total100.0.100.0.100.0.
Northwestern Alpsn/a..5.72.05.21.8
critical8.38.05.01.85.21.8
less stable58.314.352.54.253.04.0
stable33.313.636.94.136.63.9
total100.0.100.0.100.0.
Central Alpsn/a..7.43.66.23.0
critical..5.73.24.82.7
less stable100.0.66.76.471.95.6
stable..20.35.517.14.7
total100.0.100.0.100.0.
Northeastern Alpsn/a..5.62.75.02.4
critical33.315.812.74.015.04.0
less stable44.416.646.55.946.35.6
stable22.213.935.25.733.75.3
total100.0.100.0.100.0.
Southwestern Alpsn/a12.76.94.81.45.51.4
critical4.24.17.61.77.31.6
less stable24.98.836.53.135.52.9
stable58.210.151.03.251.63.0
total100.0.100.0.100.0.
Southeastern Alpsn/a..3.91.13.81.0
critical33.319.38.41.58.81.5
less stable33.319.345.72.745.42.7
stable33.319.342.02.741.92.7
total100.0.100.0.100.0.
Southern Alpsn/a..2.60.92.40.8
critical..3.61.13.31.0
less stable62.19.047.72.848.92.7
stable37.99.046.22.845.52.7
total100.0.100.0.100.0.
Switzerlandn/a3.71.84.50.44.50.4
critical6.52.45.80.45.80.4
less stable54.84.845.70.946.00.9
stable35.04.644.00.943.70.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155030/141409

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.41004.7275.026
critical..4.3294.329
less stable1.45053.2754.67
stable1.15883.9584.95
total2.935146.02148.92
Eastern Juran/a..2.8372.837
critical..1.2571.257
less stable0.410021.81022.110
stable..20.91120.911
total0.410046.6347.03
Western Plateaun/a..2.0442.044
critical..1.6491.649
less stable..18.51218.512
stable..25.01025.010
total..47.2447.24
Central Plateaun/a..2.6352.635
critical..5.3235.323
less stable0.310035.6736.07
stable..24.9924.99
total0.310068.4268.72
Eastern Plateaun/a..4.6274.627
critical..9.7189.718
less stable..48.6748.67
stable..47.2747.27
total..110.12110.12
Western Pre-Alpsn/a..4.4284.428
critical..5.2255.225
less stable0.410016.31216.712
stable..14.81314.813
total0.410040.7441.14
Central Pre-Alpsn/a..4.7274.727
critical..2.9352.935
less stable1.15854.1655.26
stable0.410031.5931.99
total1.45093.2394.72
Eastern Pre-Alpsn/a..3.2333.233
critical..2.5372.537
less stable0.77133.6834.38
stable0.410028.6928.99
total1.15767.9368.93
Northwestern Alpsn/a..2.9352.935
critical0.41002.5372.935
less stable2.53726.51029.09
stable1.45018.61220.012
total4.32850.4554.74
Central Alpsn/a..1.4491.449
critical..1.1581.158
less stable3.43012.41415.911
stable..3.8293.829
total3.43018.61022.18
Northeastern Alpsn/a..1.4491.449
critical1.1573.2324.327
less stable1.44911.81513.314
stable0.7709.0189.717
total3.23225.4828.76
Southwestern Alpsn/a1.0584.1295.225
critical0.31006.5226.922
less stable2.14131.2933.39
stable4.82643.6748.47
total8.22085.4493.73
Southeastern Alpsn/a..4.6274.627
critical0.7719.81810.518
less stable0.77153.4754.17
stable0.77149.1749.97
total2.141116.93119.03
Southern Alpsn/a..2.8352.835
critical..3.9303.930
less stable6.42351.9758.36
stable3.93050.3754.27
total10.318109.04119.33
Switzerlandn/a1.45046.2947.69
critical2.53859.6762.17
less stable20.813468.92489.72
stable13.316451.12464.52
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155031/141410

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a....2.62.6......0.90.9
less than 10 years ago33.315.750.035.447.48.112.56.733.319.317.47.129.84.4
11-20 years ago..50.035.415.85.925.28.933.319.313.86.417.53.7
21-30 years ago22.213.9..10.55.024.98.816.715.23.43.412.93.2
31-40 years ago11.110.5..7.94.44.24.1..13.86.48.42.7
41-50 years ago......8.35.6..17.27.06.52.4
over 50 years ago33.415.7..15.85.924.98.816.715.234.48.824.14.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.00.40.30.20.40.2....0.30.30.40.1
less than 10 years ago68.62.077.41.649.61.719.32.644.13.013.41.953.20.9
11-20 years ago16.51.614.71.321.11.414.42.414.62.211.81.816.50.7
21-30 years ago8.31.23.40.78.71.020.72.711.52.011.11.88.70.5
31-40 years ago1.40.51.30.46.60.913.42.35.21.417.22.15.90.4
41-50 years ago0.40.30.10.13.20.64.91.54.51.313.01.93.20.3
over 50 years ago3.90.92.90.610.51.127.43.020.12.533.32.712.10.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.00.40.30.20.50.2....0.30.30.40.1
less than 10 years ago68.02.077.31.649.51.718.62.543.83.013.71.952.30.8
11-20 years ago16.21.614.81.320.91.415.42.315.02.211.91.716.60.7
21-30 years ago8.61.23.30.78.81.021.12.611.71.910.51.78.90.5
31-40 years ago1.50.51.30.46.70.812.52.15.11.316.92.06.00.4
41-50 years ago0.40.30.10.13.00.65.31.44.41.213.31.83.40.3
over 50 years ago4.40.92.90.610.71.027.12.820.02.433.42.512.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155032/141411

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.4100......0.4100
less than 10 years ago1.1580.41006.4231.0580.7711.84511.318
11-20 years ago..0.41002.1412.1410.7711.4506.723
21-30 years ago0.771..1.4502.1410.41000.41004.927
31-40 years ago0.4100..1.1580.3100..1.4503.233
41-50 years ago......0.771..1.8452.538
over 50 years ago1.158..2.1412.1410.41003.6319.219
total3.2330.77113.5168.2202.14110.31838.19
outside perimetern/a1.8450.7711.158....0.41003.930
less than 10 years ago127.53195.92149.2414.71441.7815.015544.02
11-20 years ago30.61037.1963.5711.01713.81513.216169.24
21-30 years ago15.5158.52026.21115.81410.91712.51689.46
31-40 years ago2.5383.23319.91310.3174.92619.21360.07
41-50 years ago0.7710.41009.6193.8304.22814.61533.210
over 50 years ago7.2227.42231.61020.91219.01337.39123.55
total185.92253.21301.1276.4494.63112.131023.21
totaln/a1.8450.7711.450....0.41004.329
less than 10 years ago128.63196.32155.6415.71442.4816.814555.42
11-20 years ago30.61037.5965.6713.01514.51514.615175.84
21-30 years ago16.2148.52027.71117.81311.31712.81694.36
31-40 years ago2.9353.23320.91310.6174.92620.71263.27
41-50 years ago0.7710.41009.6194.4274.22816.31435.710
over 50 years ago8.3217.42233.81022.91119.41340.98132.75
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155033/141412

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGn/a......
less than 10 years ago..73.64.073.64.0
11-20 years ago..18.23.518.23.5
21-30 years ago..5.82.15.82.1
31-40 years ago..0.80.80.80.8
41-50 years ago......
over 50 years ago..1.71.21.71.2
total..100.0.100.0.
AIn/a......
less than 10 years ago..73.311.573.311.5
11-20 years ago..20.010.620.010.6
21-30 years ago......
31-40 years ago..6.76.66.76.6
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
ARn/a......
less than 10 years ago..72.09.072.09.0
11-20 years ago..20.08.120.08.1
21-30 years ago......
31-40 years ago......
41-50 years ago..4.04.04.04.0
over 50 years ago..4.04.04.04.0
total..100.0.100.0.
BEn/a6.26.0..0.20.2
less than 10 years ago43.612.467.02.266.22.2
11-20 years ago12.48.216.61.716.51.7
21-30 years ago18.79.75.91.16.31.1
31-40 years ago6.26.02.40.72.50.7
41-50 years ago..1.50.61.50.6
over 50 years ago12.98.56.61.26.81.2
total100.0.100.0.100.0.
BL/BSn/a......
less than 10 years ago100.0.69.86.770.56.6
11-20 years ago..23.66.323.16.2
21-30 years ago..4.43.04.33.0
31-40 years ago......
41-50 years ago......
over 50 years ago..2.22.22.12.1
total100.0.100.0.100.0.
FRn/a......
less than 10 years ago..50.04.850.04.8
11-20 years ago..26.44.226.44.2
21-30 years ago..8.22.68.22.6
31-40 years ago..4.52.04.52.0
41-50 years ago..0.90.90.90.9
over 50 years ago..10.02.910.02.9
total..100.0.100.0.
GEn/a......
less than 10 years ago..37.122.337.122.3
11-20 years ago......
21-30 years ago..21.019.921.019.9
31-40 years ago..41.923.741.923.7
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
GLn/a......
less than 10 years ago71.417.252.98.656.17.8
11-20 years ago14.313.317.66.617.15.9
21-30 years ago..5.94.14.93.4
31-40 years ago..5.94.14.93.4
41-50 years ago......
over 50 years ago14.313.317.66.617.15.9
total100.0.100.0.100.0.
GRn/a......
less than 10 years ago33.512.240.02.539.72.4
11-20 years ago26.611.416.01.916.41.8
21-30 years ago13.38.811.21.611.31.6
31-40 years ago6.66.48.11.48.11.4
41-50 years ago13.38.85.11.15.41.1
over 50 years ago6.66.419.62.019.11.9
total100.0.100.0.100.0.
JUn/a......
less than 10 years ago33.327.463.25.362.15.2
11-20 years ago..19.04.318.34.2
21-30 years ago..10.73.410.43.3
31-40 years ago33.327.4..1.21.2
41-50 years ago......
over 50 years ago33.327.47.22.88.12.9
total100.0.100.0.100.0.
LUn/a......
less than 10 years ago..77.73.777.73.7
11-20 years ago..17.53.417.53.4
21-30 years ago..1.61.11.61.1
31-40 years ago......
41-50 years ago..1.61.11.61.1
over 50 years ago..1.61.11.61.1
total..100.0.100.0.
NEn/a..1.21.21.21.2
less than 10 years ago..80.14.380.14.3
11-20 years ago..10.53.310.53.3
21-30 years ago..2.31.62.31.6
31-40 years ago..3.52.03.52.0
41-50 years ago......
over 50 years ago..2.31.62.31.6
total..100.0.100.0.
NWn/a..6.36.25.95.8
less than 10 years ago..37.512.335.311.8
11-20 years ago..18.810.017.69.4
21-30 years ago......
31-40 years ago100.0.12.58.417.69.4
41-50 years ago......
over 50 years ago..25.011.123.510.5
total100.0.100.0.100.0.
OWn/a......
less than 10 years ago..46.87.245.07.0
11-20 years ago..10.24.49.84.2
21-30 years ago..10.24.49.84.2
31-40 years ago..10.24.49.84.2
41-50 years ago..10.24.49.84.2
over 50 years ago100.0.12.34.715.75.1
total100.0.100.0.100.0.
SGn/a......
less than 10 years ago50.025.154.14.354.04.3
11-20 years ago25.021.719.63.419.73.4
21-30 years ago25.021.79.82.610.22.6
31-40 years ago..7.52.37.32.2
41-50 years ago..2.31.32.21.3
over 50 years ago..6.82.26.62.1
total100.0.100.0.100.0.
SHn/a..2.82.82.82.8
less than 10 years ago..80.66.480.66.4
11-20 years ago..11.15.311.15.3
21-30 years ago..2.82.82.82.8
31-40 years ago..2.82.82.82.8
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
SOn/a......
less than 10 years ago50.035.579.04.578.34.5
11-20 years ago..8.63.18.43.1
21-30 years ago50.035.57.42.98.43.1
31-40 years ago..2.51.72.41.7
41-50 years ago......
over 50 years ago..2.51.72.41.7
total100.0.100.0.100.0.
SZn/a......
less than 10 years ago66.727.345.66.146.56.0
11-20 years ago33.327.414.74.315.54.3
21-30 years ago..16.24.515.54.3
31-40 years ago..7.43.27.03.1
41-50 years ago..2.92.12.82.0
over 50 years ago..13.24.112.74.0
total100.0.100.0.100.0.
TGn/a......
less than 10 years ago..80.14.880.14.8
11-20 years ago..17.14.517.14.5
21-30 years ago......
31-40 years ago......
41-50 years ago......
over 50 years ago..2.82.02.82.0
total..100.0.100.0.
TIn/a..0.40.40.40.4
less than 10 years ago10.06.710.52.010.51.9
11-20 years ago10.06.711.72.011.62.0
21-30 years ago..11.32.010.51.9
31-40 years ago15.08.017.02.416.82.3
41-50 years ago15.08.013.72.213.82.1
over 50 years ago50.011.235.43.036.52.9
total100.0.100.0.100.0.
URn/a......
less than 10 years ago37.517.237.18.237.27.4
11-20 years ago25.015.414.56.016.45.7
21-30 years ago12.511.811.75.511.85.0
31-40 years ago..5.63.94.63.2
41-50 years ago..5.63.94.63.2
over 50 years ago25.015.425.47.425.36.6
total100.0.100.0.100.0.
VDn/a..2.51.02.41.0
less than 10 years ago..50.93.250.43.2
11-20 years ago..22.52.722.32.7
21-30 years ago..11.12.011.02.0
31-40 years ago50.035.44.51.34.81.4
41-50 years ago..2.10.92.00.9
over 50 years ago50.035.46.51.66.91.6
total100.0.100.0.100.0.
VSn/a..0.40.40.40.4
less than 10 years ago12.56.720.52.619.82.4
11-20 years ago25.28.915.32.316.12.2
21-30 years ago24.98.820.12.520.52.4
31-40 years ago4.24.113.22.112.42.0
41-50 years ago8.35.64.81.45.11.3
over 50 years ago24.98.825.72.825.62.6
total100.0.100.0.100.0.
ZGn/a......
less than 10 years ago..76.911.976.911.9
11-20 years ago..23.112.123.112.1
21-30 years ago......
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
ZHn/a......
less than 10 years ago..83.23.083.23.0
11-20 years ago..12.62.812.62.8
21-30 years ago..2.11.22.11.2
31-40 years ago......
41-50 years ago......
over 50 years ago..2.11.22.11.2
total..100.0.100.0.
Switzerlandn/a0.90.90.40.10.40.1
less than 10 years ago29.94.453.00.952.10.8
11-20 years ago17.43.616.60.716.60.7
21-30 years ago12.73.28.80.59.00.5
31-40 years ago8.52.75.90.46.00.4
41-50 years ago6.42.43.20.33.40.3
over 50 years ago24.24.112.10.612.50.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155034/141413

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
AGn/a......
less than 10 years ago..35.8635.86
11-20 years ago..8.9198.919
21-30 years ago..2.8372.837
31-40 years ago..0.41000.4100
41-50 years ago......
over 50 years ago..0.8700.870
total..48.7248.72
AIn/a......
less than 10 years ago..3.5193.519
11-20 years ago..1.0541.054
21-30 years ago......
31-40 years ago..0.31000.3100
41-50 years ago......
over 50 years ago......
total..4.8114.811
ARn/a......
less than 10 years ago..5.8135.813
11-20 years ago..1.6411.641
21-30 years ago......
31-40 years ago......
41-50 years ago..0.31000.3100
over 50 years ago..0.31000.3100
total..8.058.05
BEn/a0.3100..0.3100
less than 10 years ago2.438105.04107.44
11-20 years ago0.77126.01126.711
21-30 years ago1.0589.31910.318
31-40 years ago0.31003.8304.129
41-50 years ago..2.4382.438
over 50 years ago0.77110.31811.117
total5.525156.82162.32
BL/BSn/a......
less than 10 years ago0.410013.01113.511
11-20 years ago..4.4284.428
21-30 years ago..0.8700.870
31-40 years ago......
41-50 years ago......
over 50 years ago..0.41000.4100
total0.410018.7719.16
FRn/a......
less than 10 years ago..20.51020.510
11-20 years ago..10.81610.816
21-30 years ago..3.4323.432
31-40 years ago..1.9441.944
41-50 years ago..0.41000.4100
over 50 years ago..4.1294.129
total..41.1341.13
GEn/a......
less than 10 years ago..0.8710.871
11-20 years ago......
21-30 years ago..0.51000.5100
31-40 years ago..0.9650.965
41-50 years ago......
over 50 years ago......
total..2.2342.234
GLn/a......
less than 10 years ago1.9436.9208.916
11-20 years ago0.41002.3392.736
21-30 years ago..0.8700.870
31-40 years ago..0.8700.870
41-50 years ago......
over 50 years ago0.41002.3392.736
total2.73613.11115.88
GRn/a......
less than 10 years ago1.84554.8756.57
11-20 years ago1.45022.01223.411
21-30 years ago0.77115.31416.014
31-40 years ago0.310011.21711.517
41-50 years ago0.7717.0227.721
over 50 years ago0.310026.81127.211
total5.226137.13142.33
JUn/a......
less than 10 years ago0.410020.7921.09
11-20 years ago..6.2236.223
21-30 years ago..3.5323.532
31-40 years ago0.4100..0.4100
41-50 years ago......
over 50 years ago0.41002.3402.736
total1.25732.7333.93
LUn/a......
less than 10 years ago..30.6630.66
11-20 years ago..6.9206.920
21-30 years ago..0.6700.670
31-40 years ago......
41-50 years ago..0.6700.670
over 50 years ago..0.6700.670
total..39.3339.33
NEn/a..0.31000.3100
less than 10 years ago..21.9721.97
11-20 years ago..2.9322.932
21-30 years ago..0.6700.670
31-40 years ago..1.0571.057
41-50 years ago......
over 50 years ago..0.6700.670
total..27.4427.44
NWn/a..0.41000.4100
less than 10 years ago..2.3362.336
11-20 years ago..1.2551.255
21-30 years ago......
31-40 years ago0.41000.8691.255
41-50 years ago......
over 50 years ago..1.5461.546
total0.41006.1146.513
OWn/a......
less than 10 years ago..8.6168.616
11-20 years ago..1.9431.943
21-30 years ago..1.9431.943
31-40 years ago..1.9431.943
41-50 years ago..1.9431.943
over 50 years ago0.7702.2393.033
total0.77018.3519.04
SGn/a......
less than 10 years ago0.77026.0926.79
11-20 years ago0.41009.4189.818
21-30 years ago0.41004.7275.126
31-40 years ago..3.6313.631
41-50 years ago..1.1571.157
over 50 years ago..3.3333.333
total1.45048.1549.54
SHn/a..0.41000.4100
less than 10 years ago..10.3910.39
11-20 years ago..1.4481.448
21-30 years ago..0.41000.4100
31-40 years ago..0.41000.4100
41-50 years ago......
over 50 years ago......
total..12.8312.83
SOn/a......
less than 10 years ago0.410024.2724.67
11-20 years ago..2.6362.636
21-30 years ago0.41002.3402.636
31-40 years ago..0.8700.870
41-50 years ago......
over 50 years ago..0.8700.870
total0.87030.7431.44
SZn/a......
less than 10 years ago0.77011.21511.914
11-20 years ago0.41003.6304.028
21-30 years ago..4.0284.028
31-40 years ago..1.8441.844
41-50 years ago..0.7700.770
over 50 years ago..3.3323.332
total1.15724.6625.75
TGn/a......
less than 10 years ago..16.8716.87
11-20 years ago..3.6273.627
21-30 years ago......
31-40 years ago......
41-50 years ago......
over 50 years ago..0.6700.670
total..21.0421.04
TIn/a..0.41000.4100
less than 10 years ago0.7719.31910.018
11-20 years ago0.77110.41811.117
21-30 years ago..10.01810.018
31-40 years ago1.15815.01516.114
41-50 years ago1.15812.11613.216
over 50 years ago3.63131.4935.09
total7.22288.7495.94
URn/a......
less than 10 years ago1.0574.3265.323
11-20 years ago0.7701.7442.437
21-30 years ago0.31001.4501.744
31-40 years ago..0.7700.770
41-50 years ago..0.7700.770
over 50 years ago0.7703.0313.628
total2.63411.71314.311
VDn/a..2.3402.340
less than 10 years ago..47.0747.07
11-20 years ago..20.81220.812
21-30 years ago..10.21810.218
31-40 years ago0.41004.1304.528
41-50 years ago..1.9441.944
over 50 years ago0.41006.1246.424
total0.87192.5393.23
VSn/a..0.31000.3100
less than 10 years ago1.05817.51318.513
11-20 years ago2.14113.01515.114
21-30 years ago2.14117.21319.212
31-40 years ago0.310011.31711.716
41-50 years ago0.7714.1284.826
over 50 years ago2.14122.01124.011
total8.22085.4493.73
ZGn/a......
less than 10 years ago..4.3184.318
11-20 years ago..1.3531.353
21-30 years ago......
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..5.695.69
ZHn/a......
less than 10 years ago..41.9441.94
11-20 years ago..6.3226.322
21-30 years ago..1.1571.157
31-40 years ago......
41-50 years ago......
over 50 years ago..1.1571.157
total..50.4250.42
Switzerlandn/a0.31004.0304.429
less than 10 years ago11.418543.22554.72
11-20 years ago6.623170.34176.94
21-30 years ago4.82790.6695.56
31-40 years ago3.33360.5763.77
41-50 years ago2.53833.21035.710
over 50 years ago9.319123.95133.15
total38.291025.711064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155035/141414

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimetern/a......1.61.6..0.90.9
less than 10 years ago33.415.7..37.517.134.46.117.47.129.64.4
11-20 years ago..100.0.25.015.319.75.113.86.417.63.7
21-30 years ago22.213.9....18.04.93.43.412.93.2
31-40 years ago11.110.5..12.511.74.92.813.86.48.42.7
41-50 years ago......3.32.317.27.06.52.4
over 50 years ago33.315.7..25.015.318.04.934.48.824.24.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a1.10.50.20.20.20.20.20.20.30.30.40.1
less than 10 years ago67.42.077.91.658.62.136.21.713.01.953.20.9
11-20 years ago17.51.714.01.420.41.717.11.311.71.816.50.7
21-30 years ago8.21.23.40.77.31.113.21.211.41.88.70.5
31-40 years ago1.70.60.90.45.20.98.71.016.92.15.90.4
41-50 years ago0.40.30.20.22.30.64.40.713.31.93.20.3
over 50 years ago3.80.83.40.76.11.020.21.433.42.712.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a1.10.50.20.20.20.20.30.20.30.30.40.1
less than 10 years ago66.82.077.81.658.32.136.11.613.41.952.40.8
11-20 years ago17.21.614.11.420.41.717.31.311.91.816.60.7
21-30 years ago8.41.23.40.77.21.113.51.110.71.78.90.5
31-40 years ago1.90.60.90.45.30.98.50.916.62.05.90.4
41-50 years ago0.40.30.20.22.30.64.30.713.61.93.30.3
over 50 years ago4.30.93.40.76.31.020.01.333.52.612.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155036/141415

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a......0.3100..0.3100
less than 10 years ago1.158..1.1587.3221.84511.218
11-20 years ago..0.41000.7714.2291.4506.723
21-30 years ago0.771....3.8300.41004.927
31-40 years ago0.4100..0.41001.0581.4503.233
41-50 years ago......0.7711.8452.538
over 50 years ago1.158..0.7713.8303.5319.220
total3.3330.41002.93521.11210.31837.99
outside perimetern/a2.2410.41000.41000.7710.41003.930
less than 10 years ago129.63176.02118.24106.3514.215544.32
11-20 years ago33.61031.61041.1950.1812.816169.24
21-30 years ago15.7157.72114.81538.8912.41689.46
31-40 years ago3.3332.14110.51825.61118.41359.97
41-50 years ago0.7710.41004.72712.81614.51533.110
over 50 years ago7.3227.82112.31759.2736.49123.05
total192.42225.91201.82293.52109.041022.71
totaln/a2.2410.41000.41001.0580.41004.329
less than 10 years ago130.73176.02119.34113.6516.014555.62
11-20 years ago33.61032.01041.8854.3714.215175.84
21-30 years ago16.4147.72114.81542.6912.81694.36
31-40 years ago3.7312.14110.81826.61119.81363.07
41-50 years ago0.7710.41004.72713.51616.31435.510
over 50 years ago8.4217.82113.01663.0740.08132.15
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155037/141416

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a..5.95.7........1.00.9
less than 10 years ago30.014.541.211.954.510.612.56.733.319.317.47.129.74.4
11-20 years ago10.09.55.95.722.78.925.28.933.319.313.86.417.53.7
21-30 years ago20.012.611.87.89.16.124.98.816.715.23.43.412.93.2
31-40 years ago10.09.517.69.3..4.24.1..13.86.48.42.7
41-50 years ago......8.35.6..17.27.06.52.4
over 50 years ago30.114.517.69.313.67.324.98.816.715.234.48.824.14.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.20.40.3..0.40.4..0.30.30.40.1
less than 10 years ago73.21.353.62.253.22.820.52.643.02.713.01.953.20.9
11-20 years ago15.61.121.51.817.42.115.32.316.82.111.71.816.50.7
21-30 years ago5.60.77.01.19.51.720.12.511.11.711.41.88.70.5
31-40 years ago1.30.35.51.06.31.413.22.16.61.416.92.15.80.4
41-50 years ago0.30.13.10.82.80.94.81.43.91.113.31.93.20.3
over 50 years ago3.60.58.81.310.71.725.72.818.62.133.42.712.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.20.60.3..0.40.4..0.30.30.40.1
less than 10 years ago72.81.353.22.253.32.719.82.442.82.713.41.952.40.8
11-20 years ago15.51.121.01.817.72.116.12.217.12.011.91.816.60.7
21-30 years ago5.70.77.21.19.51.620.52.411.21.710.71.78.90.5
31-40 years ago1.40.35.91.05.91.312.42.06.51.316.62.05.90.4
41-50 years ago0.30.13.00.72.70.95.11.33.81.013.61.93.40.3
over 50 years ago3.80.69.11.310.91.725.62.618.62.133.52.612.50.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155038/141417

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a..0.4100........0.4100
less than 10 years ago1.1582.5384.1281.0580.7711.84511.318
11-20 years ago0.41000.41001.7442.1410.7711.4506.623
21-30 years ago0.7710.7710.7712.1410.41000.41004.927
31-40 years ago0.41001.158..0.3100..1.4503.233
41-50 years ago......0.771..1.8452.538
over 50 years ago1.1581.1581.0582.1410.41003.5319.120
total3.6326.1247.6218.2202.14110.31837.99
outside perimetern/a2.5380.771..0.3100..0.41003.930
less than 10 years ago306.2298.8558.0617.51350.2714.215544.82
11-20 years ago65.1739.7919.01313.01519.71212.816169.24
21-30 years ago23.31213.01610.41817.21313.01612.41689.26
31-40 years ago5.42610.1196.92211.3177.72118.41359.87
41-50 years ago1.1585.8253.1334.1284.62714.51533.110
over 50 years ago15.01516.21411.71622.01121.71236.49123.15
total418.51184.32109.1385.44116.93109.041023.21
totaln/a2.5381.158..0.3100..0.41004.329
less than 10 years ago307.22101.3562.1618.51350.9716.014556.12
11-20 years ago65.5740.0920.71215.11420.41214.215175.94
21-30 years ago24.01213.71611.11719.21213.31612.81694.06
31-40 years ago5.72511.2186.92211.7167.72119.81363.07
41-50 years ago1.1585.8253.1334.8264.62716.31435.610
over 50 years ago16.11517.31412.81624.01122.11240.08132.25
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155039/141418

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juran/a..1.20.51.20.5
less than 10 years ago24.915.367.02.366.22.3
11-20 years ago..17.11.916.81.8
21-30 years ago24.915.38.11.38.41.4
31-40 years ago12.411.71.50.61.70.6
41-50 years ago..0.50.30.50.3
over 50 years ago37.817.24.61.05.31.1
total100.0.100.0.100.0.
Eastern Juran/a..0.80.80.80.8
less than 10 years ago100.0.68.74.369.04.3
11-20 years ago..18.53.618.43.6
21-30 years ago..8.52.68.42.6
31-40 years ago..2.51.52.51.4
41-50 years ago......
over 50 years ago..0.80.80.80.8
total100.0.100.0.100.0.
Western Plateaun/a..0.90.90.90.9
less than 10 years ago..56.44.656.44.6
11-20 years ago..21.83.921.83.9
21-30 years ago..8.62.68.62.6
31-40 years ago..3.51.73.51.7
41-50 years ago..0.90.90.90.9
over 50 years ago..7.92.57.92.5
total..100.0.100.0.
Central Plateaun/a......
less than 10 years ago..85.82.485.42.4
11-20 years ago100.0.7.31.77.71.8
21-30 years ago..3.21.23.21.2
31-40 years ago..0.90.60.90.6
41-50 years ago......
over 50 years ago..2.91.22.91.2
total100.0.100.0.100.0.
Eastern Plateaun/a......
less than 10 years ago..80.22.380.22.3
11-20 years ago..15.92.115.92.1
21-30 years ago..1.60.71.60.7
31-40 years ago......
41-50 years ago......
over 50 years ago..2.30.92.30.9
total..100.0.100.0.
Western Pre-Alpsn/a......
less than 10 years ago100.0.40.94.741.54.7
11-20 years ago..30.94.430.64.4
21-30 years ago..8.22.68.12.6
31-40 years ago..6.32.36.32.3
41-50 years ago..3.61.83.61.8
over 50 years ago..10.02.99.92.8
total100.0.100.0.100.0.
Central Pre-Alpsn/a..0.40.40.40.4
less than 10 years ago..65.03.064.03.0
11-20 years ago25.021.718.12.418.22.4
21-30 years ago..4.61.34.51.3
31-40 years ago25.021.73.81.24.21.2
41-50 years ago..2.30.92.30.9
over 50 years ago50.025.05.81.46.41.5
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a......
less than 10 years ago66.727.360.03.660.13.5
11-20 years ago33.327.317.42.817.62.7
21-30 years ago..10.52.210.42.2
31-40 years ago..6.31.86.21.7
41-50 years ago..1.60.91.60.9
over 50 years ago..4.21.54.11.4
total100.0.100.0.100.0.
Northwestern Alpsn/a8.38.00.70.71.30.9
less than 10 years ago50.014.542.64.243.14.0
11-20 years ago..20.53.418.93.2
21-30 years ago16.710.810.62.611.12.5
31-40 years ago16.710.87.82.38.52.3
41-50 years ago..4.31.73.91.6
over 50 years ago8.38.013.52.913.12.7
total100.0.100.0.100.0.
Central Alpsn/a......
less than 10 years ago40.015.635.26.535.96.0
11-20 years ago30.014.614.94.917.34.8
21-30 years ago10.09.59.44.09.53.7
31-40 years ago..3.72.63.12.2
41-50 years ago..7.43.66.23.0
over 50 years ago20.012.729.56.228.05.6
total100.0.100.0.100.0.
Northeastern Alpsn/a......
less than 10 years ago66.715.747.95.950.05.6
11-20 years ago11.110.519.74.718.74.4
21-30 years ago11.110.57.03.07.53.0
31-40 years ago..8.43.37.53.0
41-50 years ago..2.82.02.51.8
over 50 years ago11.110.514.14.113.73.9
total100.0.100.0.100.0.
Southwestern Alpsn/a..0.40.40.40.4
less than 10 years ago12.56.720.52.619.82.4
11-20 years ago25.28.915.32.316.12.2
21-30 years ago24.98.820.12.520.52.4
31-40 years ago4.24.113.22.112.42.0
41-50 years ago8.35.64.81.45.11.3
over 50 years ago24.98.825.72.825.62.6
total100.0.100.0.100.0.
Southeastern Alpsn/a......
less than 10 years ago33.319.343.02.742.82.7
11-20 years ago33.319.316.82.117.12.0
21-30 years ago16.715.211.11.711.21.7
31-40 years ago..6.61.46.51.3
41-50 years ago..3.91.13.81.0
over 50 years ago16.715.218.62.118.62.1
total100.0.100.0.100.0.
Southern Alpsn/a..0.30.30.30.3
less than 10 years ago17.47.113.01.913.41.9
11-20 years ago13.86.411.71.811.91.8
21-30 years ago3.43.411.41.810.71.7
31-40 years ago13.86.416.92.116.62.0
41-50 years ago17.27.013.31.913.61.9
over 50 years ago34.48.833.42.733.52.6
total100.0.100.0.100.0.
Switzerlandn/a0.90.90.40.10.40.1
less than 10 years ago29.94.453.00.952.10.8
11-20 years ago17.43.616.70.716.70.7
21-30 years ago12.93.28.80.58.90.5
31-40 years ago8.42.75.90.46.00.4
41-50 years ago6.52.43.20.33.40.3
over 50 years ago24.14.112.10.612.50.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155040/141419

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.8451.845
less than 10 years ago0.77197.8498.54
11-20 years ago..25.01125.011
21-30 years ago0.77111.81712.516
31-40 years ago0.41002.1412.538
41-50 years ago..0.7710.771
over 50 years ago1.1586.8237.921
total2.935146.02148.92
Eastern Juran/a..0.41000.4100
less than 10 years ago0.410032.0732.47
11-20 years ago..8.6208.620
21-30 years ago..4.0304.030
31-40 years ago..1.2571.257
41-50 years ago......
over 50 years ago..0.41000.4100
total0.410046.6347.03
Western Plateaun/a..0.41000.4100
less than 10 years ago..26.6926.69
11-20 years ago..10.31810.318
21-30 years ago..4.1314.131
31-40 years ago..1.6491.649
41-50 years ago..0.41000.4100
over 50 years ago..3.7323.732
total..47.2447.24
Central Plateaun/a......
less than 10 years ago..58.6358.63
11-20 years ago0.31005.0245.323
21-30 years ago..2.2372.237
31-40 years ago..0.6710.671
41-50 years ago......
over 50 years ago..2.0412.041
total0.310068.4268.72
Eastern Plateaun/a......
less than 10 years ago..88.3388.33
11-20 years ago..17.51317.513
21-30 years ago..1.8441.844
31-40 years ago......
41-50 years ago......
over 50 years ago..2.5372.537
total..110.12110.12
Western Pre-Alpsn/a......
less than 10 years ago0.410016.71217.012
11-20 years ago..12.61512.615
21-30 years ago..3.3323.332
31-40 years ago..2.6372.637
41-50 years ago..1.5491.549
over 50 years ago..4.1294.129
total0.410040.7441.14
Central Pre-Alpsn/a..0.41000.4100
less than 10 years ago..60.6560.65
11-20 years ago0.410016.91317.213
21-30 years ago..4.3284.328
31-40 years ago0.41003.6313.930
41-50 years ago..2.2402.240
over 50 years ago0.7715.4256.124
total1.45093.2394.72
Eastern Pre-Alpsn/a......
less than 10 years ago0.77140.7741.47
11-20 years ago0.410011.81612.116
21-30 years ago..7.1217.121
31-40 years ago..4.3284.328
41-50 years ago..1.1571.157
over 50 years ago..2.9352.935
total1.15767.9368.93
Northwestern Alpsn/a0.41000.41000.771
less than 10 years ago2.14021.51123.610
11-20 years ago..10.41710.417
21-30 years ago0.7715.4256.123
31-40 years ago0.7713.9304.727
41-50 years ago..2.1402.140
over 50 years ago0.41006.8227.221
total4.32850.4554.74
Central Alpsn/a......
less than 10 years ago1.4496.6217.919
11-20 years ago1.0572.8343.829
21-30 years ago0.31001.7442.140
31-40 years ago..0.7700.770
41-50 years ago..1.4491.449
over 50 years ago0.7705.5236.222
total3.43018.61022.18
Northeastern Alpsn/a......
less than 10 years ago2.14012.21514.313
11-20 years ago0.41005.0255.424
21-30 years ago0.41001.8442.140
31-40 years ago..2.1402.140
41-50 years ago..0.7700.770
over 50 years ago0.41003.6303.929
total3.23225.4828.76
Southwestern Alpsn/a..0.31000.3100
less than 10 years ago1.05817.51318.513
11-20 years ago2.14113.01515.114
21-30 years ago2.14117.21319.212
31-40 years ago0.310011.31711.716
41-50 years ago0.7714.1284.826
over 50 years ago2.14122.01124.011
total8.22085.4493.73
Southeastern Alpsn/a......
less than 10 years ago0.77150.2750.97
11-20 years ago0.77119.71220.412
21-30 years ago0.410013.01613.316
31-40 years ago..7.7217.721
41-50 years ago..4.6274.627
over 50 years ago0.410021.71222.112
total2.141116.93119.03
Southern Alpsn/a..0.41000.4100
less than 10 years ago1.84514.21516.014
11-20 years ago1.45012.81614.215
21-30 years ago0.410012.41612.816
31-40 years ago1.45018.41319.813
41-50 years ago1.84514.51516.314
over 50 years ago3.53136.4940.08
total10.318109.04119.33
Switzerlandn/a0.41004.0304.429
less than 10 years ago11.418543.42554.82
11-20 years ago6.623171.34177.94
21-30 years ago4.92790.0694.96
31-40 years ago3.23360.3763.57
41-50 years ago2.53833.21035.710
over 50 years ago9.220123.75132.85
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155041/141420

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %± %±
inside perimetern/a11.110.5....12.76.9....3.71.8
pure conifer forest33.415.7..47.48.166.59.783.315.224.28.045.24.8
mixed conifer forest11.110.550.035.410.55.0..16.715.23.43.47.52.5
mixed broadleaf forest22.213.9..15.85.98.35.6..10.35.712.13.1
pure broadleaf forest22.213.950.035.426.37.112.56.7..62.09.031.64.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a3.50.84.50.85.90.83.21.23.01.02.20.84.20.4
pure conifer forest29.82.038.11.856.01.778.02.885.42.235.92.749.00.9
mixed conifer forest26.92.023.21.618.61.37.61.85.21.47.31.517.90.7
mixed broadleaf forest19.61.712.41.28.20.92.21.02.30.95.11.210.00.6
pure broadleaf forest20.21.821.81.511.31.19.01.94.11.249.52.818.90.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.60.84.50.85.60.84.11.32.91.02.00.84.20.4
pure conifer forest29.92.038.01.855.61.776.92.785.42.134.92.648.80.9
mixed conifer forest26.71.923.31.618.21.36.91.65.51.46.91.417.60.7
mixed broadleaf forest19.61.712.41.28.60.92.81.12.20.95.51.210.10.5
pure broadleaf forest20.21.821.91.512.01.19.31.84.01.250.62.719.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155042/141421

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of mixture %± %± %±
AGn/a..6.62.36.62.3
pure conifer forest..28.14.128.14.1
mixed conifer forest..15.73.315.73.3
mixed broadleaf forest..14.93.214.93.2
pure broadleaf forest..34.74.334.74.3
total..100.0.100.0.
AIn/a..6.76.66.76.6
pure conifer forest..60.012.960.012.9
mixed conifer forest..33.312.533.312.5
mixed broadleaf forest......
pure broadleaf forest......
total..100.0.100.0.
ARn/a......
pure conifer forest..60.09.960.09.9
mixed conifer forest..24.08.724.08.7
mixed broadleaf forest..8.05.58.05.5
pure broadleaf forest..8.05.58.05.5
total..100.0.100.0.
BEn/a..5.01.04.91.0
pure conifer forest37.812.153.52.353.02.3
mixed conifer forest18.79.721.81.921.71.9
mixed broadleaf forest31.111.69.21.49.91.4
pure broadleaf forest12.48.210.51.410.51.4
total100.0.100.0.100.0.
BL/BSn/a..8.74.28.54.1
pure conifer forest100.0.15.35.417.15.5
mixed conifer forest..6.53.76.43.6
mixed broadleaf forest..24.06.423.56.2
pure broadleaf forest..45.47.444.57.3
total100.0.100.0.100.0.
FRn/a..9.92.89.92.8
pure conifer forest..43.74.743.74.7
mixed conifer forest..20.03.820.03.8
mixed broadleaf forest..10.93.010.93.0
pure broadleaf forest..15.53.515.53.5
total..100.0.100.0.
GEn/a......
pure conifer forest......
mixed conifer forest..21.019.921.019.9
mixed broadleaf forest......
pure broadleaf forest..79.019.979.019.9
total..100.0.100.0.
GLn/a..5.94.14.93.4
pure conifer forest42.918.944.18.643.97.8
mixed conifer forest..17.66.614.65.6
mixed broadleaf forest14.313.311.85.612.25.2
pure broadleaf forest42.918.920.67.024.46.8
total100.0.100.0.100.0.
GRn/a..3.30.93.20.9
pure conifer forest66.812.277.82.177.42.1
mixed conifer forest6.66.48.11.48.11.4
mixed broadleaf forest6.66.42.00.72.20.7
pure broadleaf forest19.910.38.71.49.11.4
total100.0.100.0.100.0.
JUn/a33.327.41.21.22.31.6
pure conifer forest..26.24.825.34.7
mixed conifer forest33.327.422.54.622.94.5
mixed broadleaf forest..25.04.824.24.6
pure broadleaf forest33.327.425.04.725.34.7
total100.0.100.0.100.0.
LUn/a..4.31.94.31.9
pure conifer forest..59.84.459.84.4
mixed conifer forest..19.13.519.13.5
mixed broadleaf forest..8.82.58.82.5
pure broadleaf forest..8.02.48.02.4
total..100.0.100.0.
NEn/a..6.42.86.42.8
pure conifer forest..52.75.452.75.4
mixed conifer forest..28.14.928.14.9
mixed broadleaf forest..5.92.65.92.6
pure broadleaf forest..7.02.87.02.8
total..100.0.100.0.
NWn/a......
pure conifer forest..50.012.747.112.3
mixed conifer forest..18.810.017.69.4
mixed broadleaf forest..6.36.25.95.8
pure broadleaf forest100.0.25.011.129.411.3
total100.0.100.0.100.0.
OWn/a..8.03.97.73.7
pure conifer forest50.035.753.27.153.07.0
mixed conifer forest..16.45.315.75.1
mixed broadleaf forest..10.24.49.84.2
pure broadleaf forest50.035.712.34.713.74.9
total100.0.100.0.100.0.
SGn/a..3.81.73.71.6
pure conifer forest25.021.736.84.236.54.1
mixed conifer forest25.021.729.34.029.23.9
mixed broadleaf forest..15.83.215.33.1
pure broadleaf forest50.025.114.33.015.33.1
total100.0.100.0.100.0.
SHn/a..5.63.95.63.9
pure conifer forest..33.37.933.37.9
mixed conifer forest..16.76.316.76.3
mixed broadleaf forest..19.46.719.46.7
pure broadleaf forest..25.07.325.07.3
total..100.0.100.0.
SOn/a..1.21.21.21.2
pure conifer forest50.035.516.04.116.94.1
mixed conifer forest..22.24.621.74.5
mixed broadleaf forest..30.95.130.15.0
pure broadleaf forest50.035.529.65.130.15.1
total100.0.100.0.100.0.
SZn/a..4.42.54.22.4
pure conifer forest..63.25.860.55.8
mixed conifer forest33.327.414.74.315.54.3
mixed broadleaf forest33.327.45.92.97.03.1
pure broadleaf forest33.327.411.83.912.74.0
total100.0.100.0.100.0.
TGn/a..4.32.44.32.4
pure conifer forest..29.95.529.95.5
mixed conifer forest..29.95.529.95.5
mixed broadleaf forest..13.24.113.24.1
pure broadleaf forest..22.85.022.85.0
total..100.0.100.0.
TIn/a..2.00.91.90.8
pure conifer forest10.06.728.22.926.92.7
mixed conifer forest5.04.97.21.67.11.6
mixed broadleaf forest10.06.75.71.56.01.5
pure broadleaf forest75.09.756.93.158.23.0
total100.0.100.0.100.0.
URn/a..5.63.94.63.2
pure conifer forest100.0.51.28.560.27.5
mixed conifer forest..5.63.94.63.2
mixed broadleaf forest..14.15.911.54.9
pure broadleaf forest..23.47.219.16.1
total100.0.100.0.100.0.
VDn/a..4.11.34.01.3
pure conifer forest..38.93.138.63.1
mixed conifer forest..27.02.826.82.8
mixed broadleaf forest50.035.413.22.213.52.2
pure broadleaf forest50.035.416.82.417.12.4
total100.0.100.0.100.0.
VSn/a12.76.93.61.24.41.3
pure conifer forest66.59.774.32.873.62.7
mixed conifer forest..8.81.88.01.6
mixed broadleaf forest8.35.63.21.13.71.1
pure broadleaf forest12.56.710.01.910.21.8
total100.0.100.0.100.0.
ZGn/a......
pure conifer forest..53.814.253.814.2
mixed conifer forest..15.410.415.410.4
mixed broadleaf forest..15.410.415.410.4
pure broadleaf forest..15.410.415.410.4
total..100.0.100.0.
ZHn/a..3.51.53.51.5
pure conifer forest..35.04.035.04.0
mixed conifer forest..28.03.828.03.8
mixed broadleaf forest..14.02.914.02.9
pure broadleaf forest..19.63.319.63.3
total..100.0.100.0.
Switzerlandn/a3.81.84.30.44.20.4
pure conifer forest44.74.748.50.948.40.9
mixed conifer forest7.42.517.80.717.50.7
mixed broadleaf forest12.03.110.20.610.20.6
pure broadleaf forest32.14.519.20.719.70.7
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155043/141422

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of mixture1000 ha± %1000 ha± %1000 ha± %
AGn/a..3.2343.234
pure conifer forest..13.71513.715
mixed conifer forest..7.6217.621
mixed broadleaf forest..7.2227.222
pure broadleaf forest..16.91316.913
total..48.7248.72
AIn/a..0.31000.3100
pure conifer forest..2.9242.924
mixed conifer forest..1.6391.639
mixed broadleaf forest......
pure broadleaf forest......
total..4.8114.811
ARn/a......
pure conifer forest..4.8174.817
mixed conifer forest..1.9361.936
mixed broadleaf forest..0.6690.669
pure broadleaf forest..0.6690.669
total..8.058.05
BEn/a..7.9217.921
pure conifer forest2.14183.8585.95
mixed conifer forest1.05834.2935.29
mixed broadleaf forest1.74514.41516.114
pure broadleaf forest0.77116.41417.114
total5.525156.82162.32
BL/BSn/a..1.6491.649
pure conifer forest0.41002.9363.333
mixed conifer forest..1.2571.257
mixed broadleaf forest..4.5274.527
pure broadleaf forest..8.5188.518
total0.410018.7719.16
FRn/a..4.1294.129
pure conifer forest..17.91117.911
mixed conifer forest..8.2198.219
mixed broadleaf forest..4.5274.527
pure broadleaf forest..6.4236.423
total..41.1341.13
GEn/a......
pure conifer forest......
mixed conifer forest..0.51000.5100
mixed broadleaf forest......
pure broadleaf forest..1.7431.743
total..2.2342.234
GLn/a..0.8700.870
pure conifer forest1.2575.8226.919
mixed conifer forest..2.3392.339
mixed broadleaf forest0.41001.5491.943
pure broadleaf forest1.2572.7363.929
total2.73613.11115.88
GRn/a..4.5274.527
pure conifer forest3.531106.74110.24
mixed conifer forest0.310011.21711.517
mixed broadleaf forest0.31002.8353.233
pure broadleaf forest1.05811.91712.916
total5.226137.13142.33
JUn/a0.41000.41000.870
pure conifer forest..8.6198.619
mixed conifer forest0.41007.4217.820
mixed broadleaf forest..8.2198.219
pure broadleaf forest0.41008.2198.619
total1.25732.7333.93
LUn/a..1.7451.745
pure conifer forest..23.5823.58
mixed conifer forest..7.5197.519
mixed broadleaf forest..3.5293.529
pure broadleaf forest..3.1313.131
total..39.3339.33
NEn/a..1.8451.845
pure conifer forest..14.41114.411
mixed conifer forest..7.7187.718
mixed broadleaf forest..1.6441.644
pure broadleaf forest..1.9401.940
total..27.4427.44
NWn/a......
pure conifer forest..3.1293.129
mixed conifer forest..1.2551.255
mixed broadleaf forest..0.41000.4100
pure broadleaf forest0.41001.5461.940
total0.41006.1146.513
OWn/a..1.5491.549
pure conifer forest0.41009.71410.114
mixed conifer forest..3.0333.033
mixed broadleaf forest..1.9431.943
pure broadleaf forest0.41002.2392.636
total0.77018.3519.04
SGn/a..1.8441.844
pure conifer forest0.410017.71218.112
mixed conifer forest0.410014.11414.514
mixed broadleaf forest..7.6207.620
pure broadleaf forest0.7706.9227.620
total1.45048.1549.54
SHn/a..0.7700.770
pure conifer forest..4.3244.324
mixed conifer forest..2.1382.138
mixed broadleaf forest..2.5342.534
pure broadleaf forest..3.2293.229
total..12.8312.83
SOn/a..0.41000.4100
pure conifer forest0.41004.9265.325
mixed conifer forest..6.8216.821
mixed broadleaf forest..9.5179.517
pure broadleaf forest0.41009.1189.517
total0.87030.7431.44
SZn/a..1.1571.157
pure conifer forest..15.61115.611
mixed conifer forest0.41003.6304.028
mixed broadleaf forest0.41001.4491.844
pure broadleaf forest0.41002.9343.332
total1.15724.6625.75
TGn/a..0.9570.957
pure conifer forest..6.3196.319
mixed conifer forest..6.3196.319
mixed broadleaf forest..2.8322.832
pure broadleaf forest..4.8224.822
total..21.0421.04
TIn/a..1.8441.844
pure conifer forest0.77125.01125.811
mixed conifer forest0.41006.4236.823
mixed broadleaf forest0.7715.0265.724
pure broadleaf forest5.42550.5755.96
total7.22288.7495.94
URn/a..0.7700.770
pure conifer forest2.6346.0218.616
mixed conifer forest..0.7700.770
mixed broadleaf forest..1.7431.743
pure broadleaf forest..2.7352.735
total2.63411.71314.311
VDn/a..3.8313.831
pure conifer forest..36.0936.09
mixed conifer forest..25.01125.011
mixed broadleaf forest0.410012.21712.516
pure broadleaf forest0.410015.51515.914
total0.87192.5393.23
VSn/a1.0583.1334.229
pure conifer forest5.52563.5569.05
mixed conifer forest..7.5217.521
mixed broadleaf forest0.7712.7353.431
pure broadleaf forest1.0588.6199.618
total8.22085.4493.73
ZGn/a......
pure conifer forest..3.0283.028
mixed conifer forest..0.9680.968
mixed broadleaf forest..0.9680.968
pure broadleaf forest..0.9680.968
total..5.695.69
ZHn/a..1.8441.844
pure conifer forest..17.61217.612
mixed conifer forest..14.11414.114
mixed broadleaf forest..7.0217.021
pure broadleaf forest..9.9179.917
total..50.4250.42
Switzerlandn/a1.45043.7945.29
pure conifer forest17.114497.72514.72
mixed conifer forest2.835183.04185.94
mixed broadleaf forest4.628104.36108.95
pure broadleaf forest12.317197.04209.34
total38.291025.711064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155044/141423

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %±
inside perimetern/a11.110.5....5.02.8..3.71.8
pure conifer forest33.315.7..25.015.360.66.324.28.045.14.8
mixed conifer forest11.110.5100.0.12.511.76.63.23.43.47.42.5
mixed broadleaf forest22.213.9..12.511.711.54.110.35.712.13.1
pure broadleaf forest22.213.9..50.017.716.44.762.09.031.74.5
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a4.00.94.20.85.71.04.10.72.30.94.20.4
pure conifer forest29.22.038.41.954.62.171.11.635.12.748.90.9
mixed conifer forest25.61.923.01.722.11.810.21.07.41.518.00.7
mixed broadleaf forest18.61.713.71.47.71.15.10.84.91.210.00.6
pure broadleaf forest22.61.820.71.69.81.39.61.050.32.918.90.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.10.94.20.85.61.04.20.72.10.84.20.4
pure conifer forest29.32.038.31.954.22.170.41.534.12.648.80.9
mixed conifer forest25.41.923.11.722.01.79.91.07.11.417.60.7
mixed broadleaf forest18.71.713.71.47.71.15.50.85.31.210.10.5
pure broadleaf forest22.61.820.71.610.41.310.01.051.32.719.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155045/141424

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.4100....1.158..1.450
pure conifer forest1.158..0.77112.8162.53817.114
mixed conifer forest0.41000.41000.41001.4500.41002.835
mixed broadleaf forest0.771..0.41002.4381.1584.628
pure broadleaf forest0.771..1.4503.5316.42312.017
total3.3330.41002.93521.11210.31837.99
outside perimetern/a7.7229.51911.51712.1172.53843.39
pure conifer forest56.2786.85110.34208.7338.29500.22
mixed conifer forest49.3852.0744.7829.8108.120183.94
mixed broadleaf forest35.8930.91015.51514.9155.325102.46
pure broadleaf forest43.4846.7819.81328.11154.97192.94
total192.42225.91201.82293.52109.041022.71
totaln/a8.0219.51911.51713.2162.53844.79
pure conifer forest57.3786.85111.04221.5340.78517.32
mixed conifer forest49.6852.3745.1831.2108.520186.74
mixed broadleaf forest36.5930.91015.91517.3146.423107.05
pure broadleaf forest44.2846.7821.31231.51061.26204.94
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155046/141425

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %± %±
inside perimetern/a10.09.5....12.76.9....3.71.8
pure conifer forest30.114.535.311.654.510.666.59.783.315.224.28.045.14.8
mixed conifer forest20.012.611.87.89.16.1..16.715.23.43.47.52.5
mixed broadleaf forest20.012.623.510.39.16.18.35.6..10.35.712.13.1
pure broadleaf forest20.012.629.411.127.39.512.56.7..62.09.031.64.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a4.10.66.31.14.81.23.61.23.31.02.30.94.20.4
pure conifer forest34.31.459.32.248.62.874.32.880.42.235.12.749.00.9
mixed conifer forest24.21.318.21.721.72.38.81.88.11.57.41.517.90.7
mixed broadleaf forest15.91.17.41.210.41.73.21.12.10.84.91.210.00.6
pure broadleaf forest21.51.28.81.314.62.010.01.96.01.350.32.918.80.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.20.66.11.04.41.14.41.33.21.02.10.84.20.4
pure conifer forest34.21.458.52.149.02.773.62.780.52.234.12.648.90.9
mixed conifer forest24.21.218.01.720.82.28.01.68.31.57.11.417.60.7
mixed broadleaf forest15.91.18.01.210.31.73.71.12.10.85.31.210.10.5
pure broadleaf forest21.51.29.51.315.42.010.21.85.91.351.32.719.30.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155047/141426

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.4100....1.058....1.450
pure conifer forest1.1582.2414.1285.5251.8452.53817.114
mixed conifer forest0.7710.7710.771..0.41000.41002.835
mixed broadleaf forest0.7711.4500.7710.771..1.1584.628
pure broadleaf forest0.7711.8452.1411.058..6.42312.017
total3.6326.1247.6218.2202.14110.31837.99
outside perimetern/a17.21411.5175.2253.1333.9302.53843.49
pure conifer forest143.44109.3453.0763.5594.1438.29501.42
mixed conifer forest101.2533.51023.6117.5219.5198.120183.54
mixed broadleaf forest66.5713.71611.4172.7352.5385.325102.16
pure broadleaf forest90.1616.21415.9148.6197.02254.97192.74
total418.51184.32109.1385.44116.93109.041023.21
totaln/a17.51411.5175.2254.2293.9302.53844.89
pure conifer forest144.54111.4457.1669.0595.8440.78518.62
mixed conifer forest101.9534.31024.3117.5219.8188.520186.44
mixed broadleaf forest67.2715.11512.1163.4312.5386.423106.75
pure broadleaf forest90.9618.01418.0139.6187.02261.26204.74
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155048/141427

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of mixture %± %± %±
Western Juran/a12.411.73.20.93.40.9
pure conifer forest25.415.531.02.330.92.3
mixed conifer forest12.411.730.62.330.22.3
mixed broadleaf forest24.915.318.31.918.51.9
pure broadleaf forest24.915.316.91.917.01.8
total100.0.100.0.100.0.
Eastern Juran/a..6.82.36.72.3
pure conifer forest100.0.22.93.923.63.9
mixed conifer forest..8.52.68.42.6
mixed broadleaf forest..19.53.719.43.6
pure broadleaf forest..42.34.641.94.5
total100.0.100.0.100.0.
Western Plateaun/a..4.21.94.21.9
pure conifer forest..34.04.434.04.4
mixed conifer forest..20.13.820.13.8
mixed broadleaf forest..14.93.314.93.3
pure broadleaf forest..26.84.126.84.1
total..100.0.100.0.
Central Plateaun/a..4.71.54.71.5
pure conifer forest..48.13.447.93.4
mixed conifer forest100.0.20.42.720.82.7
mixed broadleaf forest..10.42.110.42.1
pure broadleaf forest..16.32.516.22.5
total100.0.100.0.100.0.
Eastern Plateaun/a..3.91.13.91.1
pure conifer forest..33.12.733.12.7
mixed conifer forest..26.02.526.02.5
mixed broadleaf forest..15.62.115.62.1
pure broadleaf forest..21.42.321.42.3
total..100.0.100.0.
Western Pre-Alpsn/a..10.83.010.72.9
pure conifer forest100.0.58.24.758.64.7
mixed conifer forest..17.33.617.13.6
mixed broadleaf forest..6.42.36.32.3
pure broadleaf forest..7.32.57.22.5
total100.0.100.0.100.0.
Central Pre-Alpsn/a..4.61.34.61.3
pure conifer forest25.021.757.33.156.83.1
mixed conifer forest25.021.721.52.621.62.5
mixed broadleaf forest..7.31.67.21.6
pure broadleaf forest50.025.09.21.89.81.8
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..4.21.54.11.4
pure conifer forest..48.93.648.23.6
mixed conifer forest..25.83.225.43.1
mixed broadleaf forest33.327.38.92.19.32.1
pure broadleaf forest66.727.312.12.413.02.4
total100.0.100.0.100.0.
Northwestern Alpsn/a..5.72.05.21.8
pure conifer forest33.313.663.84.161.43.9
mixed conifer forest8.38.012.82.812.42.7
mixed broadleaf forest33.313.68.52.410.42.5
pure broadleaf forest25.012.59.22.410.52.5
total100.0.100.0.100.0.
Central Alpsn/a..7.43.66.23.0
pure conifer forest80.012.653.66.857.76.2
mixed conifer forest10.09.57.43.67.83.4
mixed broadleaf forest..12.94.610.93.9
pure broadleaf forest10.09.518.75.317.44.8
total100.0.100.0.100.0.
Northeastern Alpsn/a..4.22.43.72.1
pure conifer forest44.416.643.75.943.85.6
mixed conifer forest11.110.521.14.920.04.5
mixed broadleaf forest11.110.512.74.012.53.7
pure broadleaf forest33.315.818.34.620.04.5
total100.0.100.0.100.0.
Southwestern Alpsn/a12.76.93.61.24.41.3
pure conifer forest66.59.774.32.873.62.7
mixed conifer forest..8.81.88.01.6
mixed broadleaf forest8.35.63.21.13.71.1
pure broadleaf forest12.56.710.01.910.21.8
total100.0.100.0.100.0.
Southeastern Alpsn/a..3.31.03.21.0
pure conifer forest83.315.280.42.280.52.2
mixed conifer forest16.715.28.11.58.31.5
mixed broadleaf forest..2.10.82.10.8
pure broadleaf forest..6.01.35.91.3
total100.0.100.0.100.0.
Southern Alpsn/a..2.30.92.10.8
pure conifer forest24.28.035.12.734.12.6
mixed conifer forest3.43.47.41.57.11.4
mixed broadleaf forest10.35.74.91.25.31.2
pure broadleaf forest62.09.050.32.951.32.7
total100.0.100.0.100.0.
Switzerlandn/a3.71.84.30.44.20.4
pure conifer forest45.24.848.80.948.70.9
mixed conifer forest7.32.517.90.717.50.7
mixed broadleaf forest12.13.110.00.610.10.5
pure broadleaf forest31.74.519.00.719.40.7
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155049/141428

NFI1

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of mixture1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.41004.7275.026
pure conifer forest0.77145.3846.18
mixed conifer forest0.410044.6845.08
mixed broadleaf forest0.77126.81127.510
pure broadleaf forest0.77124.61125.311
total2.935146.02148.92
Eastern Juran/a..3.2343.234
pure conifer forest0.410010.71711.117
mixed conifer forest..4.0304.030
mixed broadleaf forest..9.1199.119
pure broadleaf forest..19.71119.711
total0.410046.6347.03
Western Plateaun/a..2.0442.044
pure conifer forest..16.01416.014
mixed conifer forest..9.5199.519
mixed broadleaf forest..7.0237.023
pure broadleaf forest..12.71612.716
total..47.2447.24
Central Plateaun/a..3.2313.231
pure conifer forest..32.9732.97
mixed conifer forest0.310013.91314.313
mixed broadleaf forest..7.1207.120
pure broadleaf forest..11.21511.215
total0.310068.4268.72
Eastern Plateaun/a..4.3284.328
pure conifer forest..36.5836.58
mixed conifer forest..28.61028.610
mixed broadleaf forest..17.21317.213
pure broadleaf forest..23.61123.611
total..110.12110.12
Western Pre-Alpsn/a..4.4284.428
pure conifer forest0.410023.7924.19
mixed conifer forest..7.0217.021
mixed broadleaf forest..2.6372.637
pure broadleaf forest..3.0343.034
total0.410040.7441.14
Central Pre-Alpsn/a..4.3294.329
pure conifer forest0.410053.4653.86
mixed conifer forest0.410020.11220.412
mixed broadleaf forest..6.8226.822
pure broadleaf forest0.7718.6209.319
total1.45093.2394.72
Eastern Pre-Alpsn/a..2.9352.935
pure conifer forest..33.2833.28
mixed conifer forest..17.51317.513
mixed broadleaf forest0.41006.1236.423
pure broadleaf forest0.7718.2208.919
total1.15767.9368.93
Northwestern Alpsn/a..2.9352.935
pure conifer forest1.45032.2833.68
mixed conifer forest0.41006.4236.822
mixed broadleaf forest1.4504.3285.724
pure broadleaf forest1.1574.7275.724
total4.32850.4554.74
Central Alpsn/a..1.4491.449
pure conifer forest2.73410.01612.713
mixed conifer forest0.31001.4491.744
mixed broadleaf forest..2.4372.437
pure broadleaf forest0.31003.5313.829
total3.43018.61022.18
Northeastern Alpsn/a..1.1571.157
pure conifer forest1.44911.11612.514
mixed conifer forest0.41005.4245.723
mixed broadleaf forest0.41003.2323.630
pure broadleaf forest1.1574.7265.723
total3.23225.4828.76
Southwestern Alpsn/a1.0583.1334.229
pure conifer forest5.52563.5569.05
mixed conifer forest..7.5217.521
mixed broadleaf forest0.7712.7353.431
pure broadleaf forest1.0588.6199.618
total8.22085.4493.73
Southeastern Alpsn/a..3.9303.930
pure conifer forest1.84594.1495.84
mixed conifer forest0.41009.5199.818
mixed broadleaf forest..2.5382.538
pure broadleaf forest..7.0227.022
total2.141116.93119.03
Southern Alpsn/a..2.5382.538
pure conifer forest2.53838.2940.78
mixed conifer forest0.41008.1208.520
mixed broadleaf forest1.1585.3256.423
pure broadleaf forest6.42354.9761.26
total10.318109.04119.33
Switzerlandn/a1.45043.7945.19
pure conifer forest17.214500.82518.02
mixed conifer forest2.835183.64186.44
mixed broadleaf forest4.628103.16107.75
pure broadleaf forest12.017194.84206.84
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155050/141429
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