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NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGless than 10 years ago..82.83.382.83.3
11-20 years ago..11.52.911.52.9
21-30 years ago..1.61.21.61.2
31-40 years ago......
41-50 years ago..2.51.42.51.4
over 50 years ago..1.61.21.61.2
total..100.0.100.0.
AIless than 10 years ago..18.59.918.59.9
11-20 years ago..43.212.643.212.6
21-30 years ago..6.26.16.26.1
31-40 years ago..6.26.16.26.1
41-50 years ago..12.38.412.38.4
over 50 years ago..13.78.913.78.9
total..100.0.100.0.
ARless than 10 years ago..32.09.532.09.5
11-20 years ago..36.09.836.09.8
21-30 years ago..20.08.120.08.1
31-40 years ago..8.05.58.05.5
41-50 years ago......
over 50 years ago..4.04.04.04.0
total..100.0.100.0.
BEless than 10 years ago35.111.652.92.352.32.2
11-20 years ago12.18.018.71.818.41.7
21-30 years ago29.311.010.31.410.91.4
31-40 years ago5.95.75.41.05.41.0
41-50 years ago..4.40.94.20.9
over 50 years ago17.69.28.41.38.71.3
total100.0.100.0.100.0.
BL/BSless than 10 years ago100.0.50.27.151.27.0
11-20 years ago..32.16.631.56.5
21-30 years ago..8.03.97.93.8
31-40 years ago..4.02.83.92.8
41-50 years ago..1.61.61.61.6
over 50 years ago..4.02.83.92.8
total100.0.100.0.100.0.
FRless than 10 years ago..56.24.756.24.7
11-20 years ago..19.33.719.33.7
21-30 years ago..4.31.94.31.9
31-40 years ago..7.92.57.92.5
41-50 years ago..4.41.94.41.9
over 50 years ago..7.92.57.92.5
total..100.0.100.0.
GEless than 10 years ago..59.119.559.119.5
11-20 years ago......
21-30 years ago..40.919.640.919.6
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
GLless than 10 years ago..34.37.828.96.8
11-20 years ago42.918.918.56.422.36.3
21-30 years ago28.617.218.56.420.06.0
31-40 years ago14.313.35.33.76.73.8
41-50 years ago..7.94.46.73.8
over 50 years ago14.313.315.65.915.45.4
total100.0.100.0.100.0.
GRless than 10 years ago16.08.520.91.920.71.8
11-20 years ago10.57.017.91.817.61.7
21-30 years ago10.57.015.51.715.31.6
31-40 years ago15.88.411.01.411.11.4
41-50 years ago5.35.16.21.16.21.1
over 50 years ago42.011.328.62.129.12.1
total100.0.100.0.100.0.
JUless than 10 years ago33.327.457.25.456.45.3
11-20 years ago33.327.421.54.521.94.4
21-30 years ago..8.33.08.12.9
31-40 years ago..7.22.86.92.7
41-50 years ago..3.52.03.31.9
over 50 years ago33.327.42.41.73.52.0
total100.0.100.0.100.0.
LUless than 10 years ago..58.14.458.14.4
11-20 years ago..26.03.926.03.9
21-30 years ago..6.42.26.42.2
31-40 years ago..6.32.26.32.2
41-50 years ago..2.41.32.41.3
over 50 years ago..0.80.80.80.8
total..100.0.100.0.
NEless than 10 years ago..75.14.675.14.6
11-20 years ago..12.53.512.53.5
21-30 years ago..3.92.23.92.2
31-40 years ago..4.82.44.82.4
41-50 years ago..1.41.41.41.4
over 50 years ago..2.31.62.31.6
total..100.0.100.0.
NWless than 10 years ago..26.310.325.09.9
11-20 years ago..42.111.540.011.2
21-30 years ago..10.57.210.06.9
31-40 years ago......
41-50 years ago......
over 50 years ago100.0.21.19.525.09.9
total100.0.100.0.100.0.
OWless than 10 years ago50.035.740.97.141.27.0
11-20 years ago..18.45.617.75.4
21-30 years ago..6.03.45.73.2
31-40 years ago..2.02.02.02.0
41-50 years ago..10.24.49.84.2
over 50 years ago50.035.722.56.023.66.0
total100.0.100.0.100.0.
SGless than 10 years ago75.021.740.44.141.34.0
11-20 years ago..24.03.523.33.5
21-30 years ago..10.32.510.02.5
31-40 years ago..8.22.38.02.2
41-50 years ago..2.71.42.71.3
over 50 years ago25.021.714.42.914.72.9
total100.0.100.0.100.0.
SHless than 10 years ago..52.88.452.88.4
11-20 years ago..33.37.933.37.9
21-30 years ago..11.15.311.15.3
31-40 years ago......
41-50 years ago......
over 50 years ago..2.82.82.82.8
total..100.0.100.0.
SOless than 10 years ago50.035.554.95.554.85.5
11-20 years ago..26.84.926.24.8
21-30 years ago..2.41.72.41.7
31-40 years ago..6.12.76.02.6
41-50 years ago..2.41.72.41.7
over 50 years ago50.035.57.32.98.33.0
total100.0.100.0.100.0.
SZless than 10 years ago..42.75.741.05.6
11-20 years ago66.727.318.74.520.54.6
21-30 years ago33.327.45.42.66.42.8
31-40 years ago..6.72.96.42.8
41-50 years ago..8.03.17.73.0
over 50 years ago..18.74.518.04.4
total100.0.100.0.100.0.
TGless than 10 years ago..73.05.273.05.2
11-20 years ago..12.64.012.64.0
21-30 years ago..12.64.012.64.0
31-40 years ago..1.81.81.81.8
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
TIless than 10 years ago13.67.39.51.79.71.6
11-20 years ago9.16.17.51.57.61.5
21-30 years ago..9.11.68.51.5
31-40 years ago..8.41.67.91.5
41-50 years ago9.16.16.81.47.01.4
over 50 years ago68.29.958.72.859.32.7
total100.0.100.0.100.0.
URless than 10 years ago55.616.628.86.833.26.5
11-20 years ago..13.25.011.04.3
21-30 years ago..15.75.513.14.6
31-40 years ago22.213.911.04.712.84.6
41-50 years ago11.110.56.93.97.63.7
over 50 years ago11.110.524.56.522.35.7
total100.0.100.0.100.0.
VDless than 10 years ago..44.43.144.13.1
11-20 years ago..22.72.622.62.6
21-30 years ago..12.82.112.72.1
31-40 years ago..5.81.55.81.4
41-50 years ago..6.91.66.91.6
over 50 years ago100.0.7.31.68.01.7
total100.0.100.0.100.0.
VSless than 10 years ago24.98.822.12.422.32.3
11-20 years ago12.56.714.62.114.52.0
21-30 years ago..9.51.78.81.6
31-40 years ago4.24.16.81.56.61.4
41-50 years ago12.76.99.21.79.51.6
over 50 years ago45.710.237.72.838.32.7
total100.0.100.0.100.0.
ZGless than 10 years ago..92.97.192.97.1
11-20 years ago......
21-30 years ago..7.17.17.17.1
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
ZHless than 10 years ago..73.83.773.83.7
11-20 years ago..16.53.116.53.1
21-30 years ago..5.51.95.51.9
31-40 years ago..3.41.53.41.5
41-50 years ago......
over 50 years ago..0.70.70.70.7
total..100.0.100.0.
Switzerlandless than 10 years ago25.74.042.30.841.70.8
11-20 years ago13.23.218.20.718.00.7
21-30 years ago8.62.69.80.59.80.5
31-40 years ago6.82.36.50.46.50.4
41-50 years ago6.02.25.00.45.00.4
over 50 years ago39.84.518.30.619.00.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164903/151285

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
AGless than 10 years ago..40.7540.75
11-20 years ago..5.6255.625
21-30 years ago..0.8700.870
31-40 years ago......
41-50 years ago..1.2571.257
over 50 years ago..0.8700.870
total..49.1249.12
AIless than 10 years ago..1.0541.054
11-20 years ago..2.3302.330
21-30 years ago..0.31000.3100
31-40 years ago..0.31000.3100
41-50 years ago..0.6690.669
over 50 years ago..0.7710.771
total..5.2125.212
ARless than 10 years ago..2.6302.630
11-20 years ago..2.9282.928
21-30 years ago..1.6411.641
31-40 years ago..0.6690.669
41-50 years ago......
over 50 years ago..0.31000.3100
total..8.058.05
BEless than 10 years ago2.14186.6588.65
11-20 years ago0.77130.61031.310
21-30 years ago1.74516.81418.513
31-40 years ago0.31008.9199.219
41-50 years ago..7.2217.221
over 50 years ago1.05813.71514.715
total5.824163.72169.52
BL/BSless than 10 years ago0.410010.21510.614
11-20 years ago..6.5216.521
21-30 years ago..1.6491.649
31-40 years ago..0.8700.870
41-50 years ago..0.31000.3100
over 50 years ago..0.8700.870
total0.410020.3520.75
FRless than 10 years ago..23.9923.99
11-20 years ago..8.2208.220
21-30 years ago..1.9441.944
31-40 years ago..3.4323.432
41-50 years ago..1.9441.944
over 50 years ago..3.4323.432
total..42.6342.63
GEless than 10 years ago..1.8361.836
11-20 years ago......
21-30 years ago..1.3541.354
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..3.1203.120
GLless than 10 years ago..5.0245.024
11-20 years ago1.2572.7363.929
21-30 years ago0.8702.7363.531
31-40 years ago0.41000.8701.257
41-50 years ago..1.2571.257
over 50 years ago0.41002.3402.736
total2.73614.61017.37
GRless than 10 years ago1.15833.9935.09
11-20 years ago0.77129.01029.710
21-30 years ago0.77125.01125.711
31-40 years ago1.05817.71318.813
41-50 years ago0.310010.01810.418
over 50 years ago2.83546.3849.17
total6.623162.02168.62
JUless than 10 years ago0.410018.71019.110
11-20 years ago0.41007.0217.420
21-30 years ago..2.7362.736
31-40 years ago..2.3402.340
41-50 years ago..1.1581.158
over 50 years ago0.41000.8701.257
total1.25732.7333.93
LUless than 10 years ago..23.3823.38
11-20 years ago..10.41510.415
21-30 years ago..2.6352.635
31-40 years ago..2.5342.534
41-50 years ago..0.9570.957
over 50 years ago..0.31000.3100
total..40.0340.03
NEless than 10 years ago..21.1721.17
11-20 years ago..3.5283.528
21-30 years ago..1.1581.158
31-40 years ago..1.4501.450
41-50 years ago..0.41000.4100
over 50 years ago..0.6700.670
total..28.2428.24
NWless than 10 years ago..1.9401.940
11-20 years ago..3.1293.129
21-30 years ago..0.8690.869
31-40 years ago......
41-50 years ago......
over 50 years ago0.41001.5461.940
total0.41007.3107.78
OWless than 10 years ago0.41007.5187.817
11-20 years ago..3.4313.431
21-30 years ago..1.1571.157
31-40 years ago..0.41000.4100
41-50 years ago..1.9431.943
over 50 years ago0.41004.1274.526
total0.77018.3519.04
SGless than 10 years ago1.15721.31122.411
11-20 years ago..12.61512.615
21-30 years ago..5.4255.425
31-40 years ago..4.3284.328
41-50 years ago..1.4501.450
over 50 years ago0.41007.6208.020
total1.45052.8454.24
SHless than 10 years ago..6.8166.816
11-20 years ago..4.3244.324
21-30 years ago..1.4481.448
31-40 years ago......
41-50 years ago......
over 50 years ago..0.41000.4100
total..12.8312.83
SOless than 10 years ago0.410017.01117.411
11-20 years ago..8.3198.319
21-30 years ago..0.8700.870
31-40 years ago..1.9441.944
41-50 years ago..0.8700.870
over 50 years ago0.41002.3402.636
total0.87031.0431.83
SZless than 10 years ago..11.61411.614
11-20 years ago0.7705.1255.823
21-30 years ago0.41001.5501.844
31-40 years ago..1.8441.844
41-50 years ago..2.2402.240
over 50 years ago..5.1255.125
total1.15727.2528.35
TGless than 10 years ago..15.5815.58
11-20 years ago..2.7312.731
21-30 years ago..2.7312.731
31-40 years ago..0.41000.4100
41-50 years ago......
over 50 years ago......
total..21.3321.33
TIless than 10 years ago1.15810.41811.517
11-20 years ago0.7718.2209.019
21-30 years ago..10.01810.018
31-40 years ago..9.3199.319
41-50 years ago0.7717.5218.220
over 50 years ago5.42564.4669.85
total7.921109.83117.72
URless than 10 years ago1.7434.3266.021
11-20 years ago..2.0392.039
21-30 years ago..2.4372.437
31-40 years ago0.7701.7442.336
41-50 years ago0.31001.0581.450
over 50 years ago0.31003.7294.027
total3.03115.01118.09
VDless than 10 years ago..43.6743.67
11-20 years ago..22.31222.312
21-30 years ago..12.51612.516
31-40 years ago..5.7255.725
41-50 years ago..6.8236.823
over 50 years ago0.8717.2227.921
total0.87198.1298.92
VSless than 10 years ago2.14122.31124.411
11-20 years ago1.05814.81415.814
21-30 years ago..9.6189.618
31-40 years ago0.31006.9227.221
41-50 years ago1.0589.31910.318
over 50 years ago3.83038.1841.88
total8.220100.93109.13
ZGless than 10 years ago..5.695.69
11-20 years ago......
21-30 years ago..0.41000.4100
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..6.066.06
ZHless than 10 years ago..37.7637.76
11-20 years ago..8.5198.519
21-30 years ago..2.8352.835
31-40 years ago..1.8441.844
41-50 years ago......
over 50 years ago..0.41000.4100
total..51.1251.12
Switzerlandless than 10 years ago10.518474.22484.82
11-20 years ago5.426203.94209.34
21-30 years ago3.532109.85113.45
31-40 years ago2.83572.8775.57
41-50 years ago2.43855.7858.28
over 50 years ago16.315204.64221.03
total41.091121.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164904/151286

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimeterless than 10 years ago44.516.6100.0.50.017.725.75.412.65.925.94.1
11-20 years ago22.113.8..12.511.713.64.29.45.212.93.1
21-30 years ago....12.511.712.14.03.13.18.52.6
31-40 years ago......9.13.56.24.36.82.3
41-50 years ago......7.73.36.24.36.02.2
over 50 years ago33.415.7..25.015.331.85.762.48.639.74.5
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago54.22.175.31.743.82.025.31.49.81.542.30.8
11-20 years ago24.41.814.01.424.91.817.71.27.11.318.20.7
21-30 years ago8.11.25.70.98.81.214.11.19.71.59.80.5
31-40 years ago5.41.02.30.67.81.18.60.98.11.46.50.4
41-50 years ago3.90.80.90.45.40.97.40.86.51.35.00.4
over 50 years ago4.10.81.80.59.31.227.01.458.72.518.20.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago54.02.175.31.743.92.025.31.310.01.541.70.8
11-20 years ago24.41.814.01.424.71.817.41.27.31.318.00.7
21-30 years ago8.01.25.70.98.81.214.01.19.21.49.80.5
31-40 years ago5.31.02.30.67.71.18.60.98.01.36.50.4
41-50 years ago3.80.80.90.45.30.97.40.86.51.25.00.4
over 50 years ago4.50.91.80.59.51.227.31.459.02.419.00.6
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164905/151287

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
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 perimeterless than 10 years ago1.5500.41001.4505.9241.45010.618
11-20 years ago0.771..0.41003.1331.1585.326
21-30 years ago....0.41002.8350.41003.532
31-40 years ago......2.1410.7712.835
41-50 years ago......1.7450.7712.538
over 50 years ago1.158..0.7717.3227.12216.215
total3.3330.41002.93522.81211.41740.79
outside perimeterless than 10 years ago107.04172.2393.4586.9613.116472.52
11-20 years ago48.2832.01053.0760.979.619203.64
21-30 years ago16.11513.01618.71348.6813.116109.55
31-40 years ago10.6185.32616.61429.51010.91772.87
41-50 years ago7.7222.14111.51725.3118.82055.48
over 50 years ago8.0214.22919.81392.7578.95203.74
total197.51228.81213.02343.92134.431117.61
totalless than 10 years ago108.44172.5394.8592.8514.515483.12
11-20 years ago48.9832.01053.3764.0710.618208.94
21-30 years ago16.11513.01619.11351.4813.416113.05
31-40 years ago10.6185.32616.61431.51011.61775.67
41-50 years ago7.7222.14111.51727.1119.51957.98
over 50 years ago9.1204.22920.513100.0586.05219.83
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164906/151288

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago49.915.827.810.634.89.924.98.822.213.912.65.925.94.1
11-20 years ago20.112.75.65.421.78.612.56.711.110.59.45.212.93.1
21-30 years ago..27.810.613.07.0..11.110.53.13.18.72.6
31-40 years ago..5.65.413.07.04.24.111.110.56.24.36.92.3
41-50 years ago....4.34.312.76.911.110.56.24.36.02.2
over 50 years ago30.014.533.311.113.07.045.710.233.315.762.48.639.74.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 10 years ago65.71.440.92.137.52.622.12.422.82.19.81.542.30.8
11-20 years ago18.71.122.51.822.32.214.62.120.22.07.11.318.20.7
21-30 years ago6.80.711.31.411.31.79.51.716.01.99.71.59.80.5
31-40 years ago3.70.56.91.17.81.46.81.511.71.68.11.46.50.4
41-50 years ago2.30.46.41.05.11.29.21.76.31.26.51.34.90.4
over 50 years ago2.90.511.91.416.02.037.72.822.92.158.72.518.20.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago65.51.440.52.137.32.522.32.322.82.110.01.541.70.8
11-20 years ago18.71.121.91.722.22.214.52.020.02.07.31.318.00.7
21-30 years ago6.70.711.91.411.41.78.81.615.91.89.21.49.80.5
31-40 years ago3.70.56.91.18.11.46.61.411.71.68.01.36.50.4
41-50 years ago2.30.46.21.05.11.19.51.66.41.26.51.25.00.4
over 50 years ago3.10.512.61.415.91.938.32.723.22.159.02.419.00.6
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, 03.11.2014 #164907/151289

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
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 perimeterless than 10 years ago1.8451.8452.8352.1410.7711.45010.518
11-20 years ago0.7710.41001.7441.0580.41001.1585.226
21-30 years ago..1.8451.058..0.41000.41003.532
31-40 years ago..0.41001.0580.31000.41000.7712.835
41-50 years ago....0.31001.0580.41000.7712.538
over 50 years ago1.1582.2411.0583.8301.1587.12216.215
total3.6326.5237.9208.2203.23311.41740.89
outside perimeterless than 10 years ago280.1280.8545.6722.31131.31013.116473.22
11-20 years ago79.8644.4827.11014.81427.8109.619203.34
21-30 years ago29.01122.41213.8169.61822.11213.116109.95
31-40 years ago15.71513.7169.5196.92216.11410.91772.87
41-50 years ago9.71912.6166.2239.3198.7208.82055.38
over 50 years ago12.21723.41219.51338.1831.51078.95203.64
total426.41197.32121.73100.93137.52134.431118.11
totalless than 10 years ago281.8282.6548.4724.41132.0914.515483.72
11-20 years ago80.5644.7828.81015.81428.11010.618208.64
21-30 years ago29.01124.21214.8159.61822.41213.416113.45
31-40 years ago15.71514.11610.5187.22116.51411.61775.67
41-50 years ago9.71912.6166.62210.3189.1199.51957.88
over 50 years ago13.21625.61120.61241.8832.6986.05219.83
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164908/151290

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juraless than 10 years ago37.317.154.02.453.72.4
11-20 years ago25.415.522.62.022.72.0
21-30 years ago..9.11.48.91.4
31-40 years ago..6.01.25.81.1
41-50 years ago..4.31.04.21.0
over 50 years ago37.317.14.01.04.71.0
total100.0.100.0.100.0.
Eastern Juraless than 10 years ago100.0.54.64.555.04.5
11-20 years ago..30.64.230.44.2
21-30 years ago..5.02.04.92.0
31-40 years ago..3.31.63.31.6
41-50 years ago..2.41.42.31.3
over 50 years ago..4.11.84.11.8
total100.0.100.0.100.0.
Western Plateauless than 10 years ago..64.54.464.54.4
11-20 years ago..15.23.315.23.3
21-30 years ago..8.42.68.42.6
31-40 years ago..3.41.73.41.7
41-50 years ago..4.31.94.31.9
over 50 years ago..4.31.94.31.9
total..100.0.100.0.
Central Plateauless than 10 years ago100.0.77.62.877.72.8
11-20 years ago..15.12.415.12.4
21-30 years ago..3.21.23.21.2
31-40 years ago..2.31.02.31.0
41-50 years ago......
over 50 years ago..1.80.91.80.9
total100.0.100.0.100.0.
Eastern Plateauless than 10 years ago..77.62.477.62.4
11-20 years ago..12.81.912.81.9
21-30 years ago..6.41.46.41.4
31-40 years ago..1.90.81.90.8
41-50 years ago..0.30.30.30.3
over 50 years ago..1.00.61.00.6
total..100.0.100.0.
Western Pre-Alpsless than 10 years ago100.0.38.44.538.94.4
11-20 years ago..21.63.821.53.7
21-30 years ago..11.62.911.52.9
31-40 years ago..10.92.910.82.8
41-50 years ago..7.52.47.52.4
over 50 years ago..10.02.89.92.7
total100.0.100.0.100.0.
Central Pre-Alpsless than 10 years ago25.021.747.03.046.73.0
11-20 years ago..26.12.725.72.7
21-30 years ago25.021.77.81.68.11.7
31-40 years ago..6.01.45.91.4
41-50 years ago..4.91.34.81.3
over 50 years ago50.025.08.21.78.81.7
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 10 years ago66.727.342.93.543.23.5
11-20 years ago33.327.325.13.125.23.0
21-30 years ago..8.41.98.31.9
31-40 years ago..8.41.98.31.9
41-50 years ago..4.91.54.91.5
over 50 years ago..10.32.110.22.1
total100.0.100.0.100.0.
Northwestern Alpsless than 10 years ago23.111.732.73.732.03.6
11-20 years ago7.77.417.03.016.32.8
21-30 years ago30.812.817.03.018.02.9
31-40 years ago7.77.45.71.85.81.8
41-50 years ago..8.22.27.52.0
over 50 years ago30.812.819.53.220.43.1
total100.0.100.0.100.0.
Central Alpsless than 10 years ago45.515.129.85.632.05.3
11-20 years ago9.18.713.34.212.73.8
21-30 years ago9.18.713.64.213.03.8
31-40 years ago18.211.78.93.510.23.4
41-50 years ago9.18.76.02.96.52.8
over 50 years ago9.18.728.45.525.75.0
total100.0.100.0.100.0.
Northeastern Alpsless than 10 years ago11.110.531.35.229.24.8
11-20 years ago33.315.822.54.723.64.5
21-30 years ago22.213.916.34.116.94.0
31-40 years ago11.110.55.02.45.62.4
41-50 years ago..5.02.44.52.2
over 50 years ago22.213.920.04.520.24.3
total100.0.100.0.100.0.
Southwestern Alpsless than 10 years ago24.98.822.12.422.32.3
11-20 years ago12.56.714.62.114.52.0
21-30 years ago..9.51.78.81.6
31-40 years ago4.24.16.81.56.61.4
41-50 years ago12.76.99.21.79.51.6
over 50 years ago45.710.237.72.838.32.7
total100.0.100.0.100.0.
Southeastern Alpsless than 10 years ago22.213.922.82.122.82.1
11-20 years ago11.110.520.22.020.02.0
21-30 years ago11.110.516.01.915.91.8
31-40 years ago11.110.511.71.611.71.6
41-50 years ago11.110.56.31.26.41.2
over 50 years ago33.315.722.92.123.22.1
total100.0.100.0.100.0.
Southern Alpsless than 10 years ago12.65.99.81.510.01.5
11-20 years ago9.45.27.11.37.31.3
21-30 years ago3.13.19.71.59.21.4
31-40 years ago6.24.38.11.48.01.3
41-50 years ago6.24.36.51.36.51.2
over 50 years ago62.48.658.72.559.02.4
total100.0.100.0.100.0.
Switzerlandless than 10 years ago25.84.142.20.841.60.8
11-20 years ago13.03.118.30.718.10.7
21-30 years ago8.72.69.80.59.80.5
31-40 years ago6.92.36.50.46.50.4
41-50 years ago6.02.25.00.45.00.4
over 50 years ago39.64.518.20.619.00.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164909/151291

NFI4b

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 NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 10 years ago1.15881.0582.15
11-20 years ago0.77133.9934.79
21-30 years ago..13.61613.616
31-40 years ago..8.9208.920
41-50 years ago..6.5236.523
over 50 years ago1.1586.1247.122
total2.935150.02152.82
Eastern Juraless than 10 years ago0.410026.1826.58
11-20 years ago..14.61414.614
21-30 years ago..2.4402.440
31-40 years ago..1.6491.649
41-50 years ago..1.1581.158
over 50 years ago..2.0442.044
total0.410047.8248.22
Western Plateauless than 10 years ago..31.2831.28
11-20 years ago..7.4227.422
21-30 years ago..4.1314.131
31-40 years ago..1.6491.649
41-50 years ago..2.1442.144
over 50 years ago..2.1442.144
total..48.4348.43
Central Plateauless than 10 years ago0.310053.1453.44
11-20 years ago..10.41610.416
21-30 years ago..2.2372.237
31-40 years ago..1.5441.544
41-50 years ago......
over 50 years ago..1.2501.250
total0.310068.4268.72
Eastern Plateauless than 10 years ago..86.9386.93
11-20 years ago..14.31514.315
21-30 years ago..7.1227.122
31-40 years ago..2.1412.141
41-50 years ago..0.41000.4100
over 50 years ago..1.1581.158
total..111.92111.92
Western Pre-Alpsless than 10 years ago0.410017.01217.412
11-20 years ago..9.6189.618
21-30 years ago..5.1265.126
31-40 years ago..4.8264.826
41-50 years ago..3.3323.332
over 50 years ago..4.4284.428
total0.410044.4444.84
Central Pre-Alpsless than 10 years ago0.410045.2745.57
11-20 years ago..25.11125.111
21-30 years ago0.41007.5217.921
31-40 years ago..5.7245.724
41-50 years ago..4.7274.727
over 50 years ago0.7717.9218.620
total1.45096.1297.52
Eastern Pre-Alpsless than 10 years ago0.77131.1931.88
11-20 years ago0.410018.21318.612
21-30 years ago..6.1236.123
31-40 years ago..6.1236.123
41-50 years ago..3.6313.631
over 50 years ago..7.5217.521
total1.15772.5373.63
Northwestern Alpsless than 10 years ago1.15718.61219.712
11-20 years ago0.41009.61810.018
21-30 years ago1.4509.61811.117
31-40 years ago0.41003.2333.631
41-50 years ago..4.6274.627
over 50 years ago1.45011.11712.516
total4.62756.8461.54
Central Alpsless than 10 years ago1.7446.9208.618
11-20 years ago0.31003.1323.430
21-30 years ago0.31003.2333.531
31-40 years ago0.7702.1402.734
41-50 years ago0.31001.4501.744
over 50 years ago0.31006.6216.921
total3.82923.2827.07
Northeastern Alpsless than 10 years ago0.41009.0189.318
11-20 years ago1.1576.4227.520
21-30 years ago0.7704.7265.424
31-40 years ago0.41001.4491.844
41-50 years ago..1.4491.449
over 50 years ago0.7705.7236.422
total3.23228.7731.96
Southwestern Alpsless than 10 years ago2.14122.31124.411
11-20 years ago1.05814.81415.814
21-30 years ago..9.6189.618
31-40 years ago0.31006.9227.221
41-50 years ago1.0589.31910.318
over 50 years ago3.83038.1841.88
total8.220100.93109.13
Southeastern Alpsless than 10 years ago0.77131.31032.09
11-20 years ago0.410027.81028.110
21-30 years ago0.410022.11222.412
31-40 years ago0.410016.11416.514
41-50 years ago0.41008.7209.119
over 50 years ago1.15831.51032.69
total3.233137.52140.62
Southern Alpsless than 10 years ago1.45013.11614.515
11-20 years ago1.1589.61910.618
21-30 years ago0.410013.11613.416
31-40 years ago0.77110.91711.617
41-50 years ago0.7718.8209.519
over 50 years ago7.12278.9586.05
total11.417134.43145.72
Switzerlandless than 10 years ago10.618472.72483.32
11-20 years ago5.326204.84210.14
21-30 years ago3.631110.35113.85
31-40 years ago2.83573.1775.97
41-50 years ago2.53855.8858.38
over 50 years ago16.215204.14220.33
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164910/151292

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %± %±
inside perimetern/a..50.035.4..4.44.3..3.03.02.61.5
pure conifer forest22.213.9..30.07.262.39.987.511.721.37.136.84.5
mixed conifer forest22.413.9..17.56.08.35.612.511.76.14.212.13.0
mixed broadleaf forest11.110.5..15.05.64.24.1..3.03.07.82.5
pure broadleaf forest44.416.650.035.437.57.720.88.3..66.68.240.74.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.30.70.32.20.52.71.03.11.01.30.61.60.2
pure conifer forest26.81.923.31.648.51.674.72.782.92.136.82.443.20.8
mixed conifer forest25.71.925.51.621.11.35.81.44.01.16.61.218.10.7
mixed broadleaf forest21.91.817.51.411.91.15.71.44.11.17.21.313.00.6
pure broadleaf forest24.91.933.01.716.41.211.11.95.91.348.12.524.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.60.30.80.32.10.52.81.03.01.01.40.61.60.2
pure conifer forest26.81.923.21.647.81.673.72.683.02.135.62.343.00.8
mixed conifer forest25.61.925.41.620.91.36.01.44.21.16.51.217.90.7
mixed broadleaf forest21.81.817.51.412.01.05.61.44.01.16.91.212.80.6
pure broadleaf forest25.31.933.01.717.21.211.91.95.71.349.52.424.70.7
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, 03.11.2014 #164911/151293

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a..0.4100..0.4100..0.41001.158
pure conifer forest0.771..4.3295.1252.5372.53815.115
mixed conifer forest0.771..2.5380.7710.41000.7715.027
mixed broadleaf forest0.4100..2.1410.3100..0.41003.233
pure broadleaf forest1.4500.41005.3261.744..7.82116.714
total3.2330.77114.2168.2202.83511.81741.09
outside perimetern/a1.1581.8457.2222.4373.5311.84517.714
pure conifer forest51.2759.87160.5466.8593.8450.97482.92
mixed conifer forest49.0865.4669.775.2254.5279.119202.94
mixed broadleaf forest41.8844.9839.295.1254.62710.018145.75
pure broadleaf forest47.5884.5554.189.9186.72366.56269.23
total190.61256.41330.7189.43113.13138.231118.41
totaln/a1.1582.1417.2222.8353.5312.14118.814
pure conifer forest51.9759.87164.7471.9496.2353.47498.02
mixed conifer forest49.7765.4672.265.8244.9269.818207.94
mixed broadleaf forest42.2844.9841.395.5244.62710.318148.95
pure broadleaf forest49.0884.9559.4711.6166.72374.35285.93
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164912/151294

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of mixture %± %± %±
AGn/a..0.80.80.80.8
pure conifer forest..16.43.416.43.4
mixed conifer forest..18.03.518.03.5
mixed broadleaf forest..18.93.518.93.5
pure broadleaf forest..45.94.545.94.5
total..100.0.100.0.
AIn/a..6.26.16.26.1
pure conifer forest..69.211.869.211.8
mixed conifer forest..24.711.024.711.0
mixed broadleaf forest......
pure broadleaf forest......
total..100.0.100.0.
ARn/a......
pure conifer forest..40.09.940.09.9
mixed conifer forest..24.08.724.08.7
mixed broadleaf forest..28.09.128.09.1
pure broadleaf forest..8.05.58.05.5
total..100.0.100.0.
BEn/a5.95.71.90.62.00.6
pure conifer forest11.77.842.52.341.42.2
mixed conifer forest29.711.125.12.025.22.0
mixed broadleaf forest17.69.213.01.513.11.5
pure broadleaf forest35.111.617.61.718.21.7
total100.0.100.0.100.0.
BL/BSn/a......
pure conifer forest100.0.4.02.85.93.3
mixed conifer forest..16.15.215.75.1
mixed broadleaf forest..22.15.921.65.8
pure broadleaf forest..57.87.156.77.0
total100.0.100.0.100.0.
FRn/a..2.61.52.61.5
pure conifer forest..39.54.639.54.6
mixed conifer forest..15.83.415.83.4
mixed broadleaf forest..17.53.617.53.6
pure broadleaf forest..24.64.024.64.0
total..100.0.100.0.
GEn/a..14.814.614.814.6
pure conifer forest......
mixed conifer forest..14.814.614.814.6
mixed broadleaf forest......
pure broadleaf forest..70.518.770.518.7
total..100.0.100.0.
GLn/a......
pure conifer forest..36.77.931.06.9
mixed conifer forest28.617.226.47.226.76.6
mixed broadleaf forest14.313.35.33.76.73.8
pure broadleaf forest57.118.831.77.635.67.2
total100.0.100.0.100.0.
GRn/a5.35.13.00.83.10.8
pure conifer forest63.211.175.92.075.42.0
mixed conifer forest10.57.06.61.16.81.1
mixed broadleaf forest..4.71.04.50.9
pure broadleaf forest21.09.39.71.410.21.4
total100.0.100.0.100.0.
JUn/a......
pure conifer forest..23.84.723.04.5
mixed conifer forest33.327.420.34.420.74.4
mixed broadleaf forest33.327.421.34.521.84.4
pure broadleaf forest33.327.434.65.234.55.1
total100.0.100.0.100.0.
LUn/a..0.80.80.80.8
pure conifer forest..45.64.445.64.4
mixed conifer forest..26.03.926.03.9
mixed broadleaf forest..11.82.911.82.9
pure broadleaf forest..15.83.315.83.3
total..100.0.100.0.
NEn/a......
pure conifer forest..41.25.341.25.3
mixed conifer forest..33.05.033.05.0
mixed broadleaf forest..16.54.016.54.0
pure broadleaf forest..9.43.29.43.2
total..100.0.100.0.
NWn/a......
pure conifer forest..52.611.650.011.4
mixed conifer forest..26.310.325.09.9
mixed broadleaf forest......
pure broadleaf forest100.0.21.19.525.09.9
total100.0.100.0.100.0.
OWn/a..3.92.73.82.6
pure conifer forest50.035.753.27.253.07.1
mixed conifer forest..16.45.315.75.1
mixed broadleaf forest..12.34.711.84.6
pure broadleaf forest50.035.714.35.115.75.1
total100.0.100.0.100.0.
SGn/a..1.30.91.30.9
pure conifer forest25.021.726.73.726.73.6
mixed conifer forest..33.63.932.73.8
mixed broadleaf forest25.021.715.83.016.03.0
pure broadleaf forest50.025.122.63.523.33.5
total100.0.100.0.100.0.
SHn/a......
pure conifer forest..19.46.719.46.7
mixed conifer forest..30.67.830.67.8
mixed broadleaf forest..16.76.316.76.3
pure broadleaf forest..33.37.933.37.9
total..100.0.100.0.
SOn/a......
pure conifer forest50.035.58.53.19.53.2
mixed conifer forest..19.54.419.04.3
mixed broadleaf forest..37.85.436.95.3
pure broadleaf forest50.035.534.15.334.55.2
total100.0.100.0.100.0.
SZn/a..4.02.33.82.2
pure conifer forest..53.45.851.35.7
mixed conifer forest33.327.418.74.519.24.5
mixed broadleaf forest..13.33.912.83.8
pure broadleaf forest66.727.310.73.612.83.8
total100.0.100.0.100.0.
TGn/a......
pure conifer forest..18.24.618.24.6
mixed conifer forest..26.75.326.75.3
mixed broadleaf forest..25.65.225.65.2
pure broadleaf forest..29.55.429.55.4
total..100.0.100.0.
TIn/a..0.70.50.60.4
pure conifer forest9.16.130.72.629.32.5
mixed conifer forest4.54.46.11.46.01.3
mixed broadleaf forest4.54.48.21.67.91.5
pure broadleaf forest81.88.254.42.856.22.7
total100.0.100.0.100.0.
URn/a......
pure conifer forest88.910.448.67.555.26.8
mixed conifer forest..13.25.011.04.3
mixed broadleaf forest..13.55.111.34.4
pure broadleaf forest11.110.524.86.522.55.7
total100.0.100.0.100.0.
VDn/a..1.20.71.20.7
pure conifer forest..38.23.037.93.0
mixed conifer forest..25.12.724.92.7
mixed broadleaf forest50.035.414.62.214.92.2
pure broadleaf forest50.035.420.92.521.12.5
total100.0.100.0.100.0.
VSn/a4.44.32.40.92.50.9
pure conifer forest62.39.971.42.670.72.6
mixed conifer forest8.35.66.11.46.31.4
mixed broadleaf forest4.24.16.11.46.01.3
pure broadleaf forest20.88.313.92.014.52.0
total100.0.100.0.100.0.
ZGn/a..7.17.17.17.1
pure conifer forest..28.612.528.612.5
mixed conifer forest..21.411.321.411.3
mixed broadleaf forest..14.39.714.39.7
pure broadleaf forest..28.612.528.612.5
total..100.0.100.0.
ZHn/a......
pure conifer forest..16.53.116.53.1
mixed conifer forest..26.93.726.93.7
mixed broadleaf forest..22.13.422.13.4
pure broadleaf forest..34.54.034.54.0
total..100.0.100.0.
Switzerlandn/a2.61.51.60.21.60.2
pure conifer forest36.34.442.80.842.60.8
mixed conifer forest12.23.118.00.717.80.7
mixed broadleaf forest7.92.513.10.612.90.6
pure broadleaf forest41.04.624.50.725.10.7
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164913/151295

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of mixture1000 ha± %1000 ha± %1000 ha± %
AGn/a..0.41000.4100
pure conifer forest..8.0218.021
mixed conifer forest..8.9198.919
mixed broadleaf forest..9.3199.319
pure broadleaf forest..22.51022.510
total..49.1249.12
AIn/a..0.31000.3100
pure conifer forest..3.6223.622
mixed conifer forest..1.3451.345
mixed broadleaf forest......
pure broadleaf forest......
total..5.2125.212
ARn/a......
pure conifer forest..3.2253.225
mixed conifer forest..1.9361.936
mixed broadleaf forest..2.2332.233
pure broadleaf forest..0.6690.669
total..8.058.05
BEn/a0.31003.1333.431
pure conifer forest0.77169.5670.26
mixed conifer forest1.74541.1842.88
mixed broadleaf forest1.05821.21222.312
pure broadleaf forest2.14128.81030.810
total5.824163.72169.52
BL/BSn/a......
pure conifer forest0.41000.8701.257
mixed conifer forest..3.3333.333
mixed broadleaf forest..4.5274.527
pure broadleaf forest..11.71311.713
total0.410020.3520.75
FRn/a..1.1571.157
pure conifer forest..16.81216.812
mixed conifer forest..6.7226.722
mixed broadleaf forest..7.5217.521
pure broadleaf forest..10.51710.517
total..42.6342.63
GEn/a..0.51000.5100
pure conifer forest......
mixed conifer forest..0.51000.5100
mixed broadleaf forest......
pure broadleaf forest..2.2342.234
total..3.1203.120
GLn/a......
pure conifer forest..5.4245.424
mixed conifer forest0.8703.9294.626
mixed broadleaf forest0.41000.8701.257
pure broadleaf forest1.5494.6266.221
total2.73614.61017.37
GRn/a0.31004.9265.225
pure conifer forest4.229123.03127.23
mixed conifer forest0.77110.71811.417
mixed broadleaf forest..7.7217.721
pure broadleaf forest1.45015.71417.114
total6.623162.02168.62
JUn/a......
pure conifer forest..7.8207.820
mixed conifer forest0.41006.6227.021
mixed broadleaf forest0.41007.0217.421
pure broadleaf forest0.410011.31511.715
total1.25732.7333.93
LUn/a..0.31000.3100
pure conifer forest..18.31018.310
mixed conifer forest..10.41510.415
mixed broadleaf forest..4.7244.724
pure broadleaf forest..6.3216.321
total..40.0340.03
NEn/a......
pure conifer forest..11.61311.613
mixed conifer forest..9.3159.315
mixed broadleaf forest..4.6254.625
pure broadleaf forest..2.6342.634
total..28.2428.24
NWn/a......
pure conifer forest..3.8243.824
mixed conifer forest..1.9401.940
mixed broadleaf forest......
pure broadleaf forest0.41001.5461.940
total0.41007.3107.78
OWn/a..0.7710.771
pure conifer forest0.41009.71410.114
mixed conifer forest..3.0333.033
mixed broadleaf forest..2.2392.239
pure broadleaf forest0.41002.6363.033
total0.77018.3519.04
SGn/a..0.7710.771
pure conifer forest0.410014.11414.514
mixed conifer forest..17.71217.712
mixed broadleaf forest0.41008.3208.719
pure broadleaf forest0.77011.91612.715
total1.45052.8454.24
SHn/a......
pure conifer forest..2.5342.534
mixed conifer forest..3.9263.926
mixed broadleaf forest..2.1382.138
pure broadleaf forest..4.3244.324
total..12.8312.83
SOn/a......
pure conifer forest0.41002.6363.034
mixed conifer forest..6.1236.123
mixed broadleaf forest..11.71511.715
pure broadleaf forest0.410010.61611.015
total0.87031.0431.83
SZn/a..1.1571.157
pure conifer forest..14.51214.512
mixed conifer forest0.41005.1255.424
mixed broadleaf forest..3.6303.630
pure broadleaf forest0.7702.9343.630
total1.15727.2528.35
TGn/a......
pure conifer forest..3.9253.925
mixed conifer forest..5.7205.720
mixed broadleaf forest..5.5215.521
pure broadleaf forest..6.3196.319
total..21.3321.33
TIn/a..0.7710.771
pure conifer forest0.77133.7934.49
mixed conifer forest0.41006.7227.122
mixed broadleaf forest0.41009.0199.319
pure broadleaf forest6.42359.7666.15
total7.921109.83117.72
URn/a......
pure conifer forest2.6347.3189.915
mixed conifer forest..2.0392.039
mixed broadleaf forest..2.0402.040
pure broadleaf forest0.31003.7294.127
total3.03115.01118.09
VDn/a..1.1581.158
pure conifer forest..37.5837.58
mixed conifer forest..24.61124.611
mixed broadleaf forest0.410014.41514.715
pure broadleaf forest0.410020.51220.912
total0.87198.1298.92
VSn/a0.41002.4382.835
pure conifer forest5.12572.0577.24
mixed conifer forest0.7716.2236.922
mixed broadleaf forest0.31006.2236.522
pure broadleaf forest1.74414.11515.814
total8.220100.93109.13
ZGn/a..0.41000.4100
pure conifer forest..1.7441.744
mixed conifer forest..1.3531.353
mixed broadleaf forest..0.9680.968
pure broadleaf forest..1.7441.744
total..6.066.06
ZHn/a......
pure conifer forest..8.5198.519
mixed conifer forest..13.81413.814
mixed broadleaf forest..11.31611.316
pure broadleaf forest..17.61217.612
total..51.1251.12
Switzerlandn/a1.15817.81418.814
pure conifer forest14.915480.02494.92
mixed conifer forest5.027202.34207.34
mixed broadleaf forest3.233146.65149.85
pure broadleaf forest16.814274.43291.33
total41.091121.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164914/151296

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %±
inside perimetern/a..100.0...3.12.2..2.61.5
pure conifer forest22.213.9..12.511.750.06.222.07.336.84.5
mixed conifer forest22.113.8..12.511.713.64.26.24.312.13.0
mixed broadleaf forest11.110.5..12.511.79.13.53.13.17.72.5
pure broadleaf forest44.516.6..62.517.124.25.368.78.240.84.5
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.30.80.32.20.62.40.51.30.61.60.2
pure conifer forest24.81.923.61.746.92.166.91.536.42.543.10.8
mixed conifer forest25.71.924.41.724.01.810.61.06.71.318.20.7
mixed broadleaf forest22.01.817.41.512.71.47.70.86.91.313.00.6
pure broadleaf forest27.01.933.81.914.21.412.41.048.72.624.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.30.90.42.20.62.50.51.20.51.60.2
pure conifer forest24.71.823.61.746.42.065.81.535.32.442.90.8
mixed conifer forest25.61.924.41.723.91.710.81.06.71.218.00.7
mixed broadleaf forest21.81.817.31.512.71.47.80.86.61.212.90.6
pure broadleaf forest27.31.933.81.914.91.513.11.050.22.524.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164915/151297

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
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/a..0.4100..0.771..1.158
pure conifer forest0.771..0.410011.4172.53815.015
mixed conifer forest0.771..0.41003.1330.7714.927
mixed broadleaf forest0.4100..0.41002.1410.41003.233
pure broadleaf forest1.550..1.8455.5257.82116.614
total3.3330.41002.93522.81211.41740.79
outside perimetern/a1.1581.8454.7288.3201.84517.614
pure conifer forest48.9854.1799.85230.1348.97481.82
mixed conifer forest50.7755.9751.2836.499.019203.34
mixed broadleaf forest43.4839.7927.01126.4119.219145.85
pure broadleaf forest53.3777.3630.31042.7965.46269.03
total197.51228.81213.02343.92134.431117.61
totaln/a1.1582.1414.7289.0191.84518.714
pure conifer forest49.6854.17100.25241.5351.47496.82
mixed conifer forest51.5755.9751.5739.599.818208.24
mixed broadleaf forest43.8839.7927.41128.5119.619149.05
pure broadleaf forest54.8777.3632.11048.2873.25285.63
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164916/151298

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of mixture %± %± %± %± %± %± %±
inside perimetern/a10.09.5....4.44.311.110.5..2.61.5
pure conifer forest20.012.616.78.839.110.262.39.977.813.922.07.336.84.5
mixed conifer forest20.112.722.29.813.07.08.35.611.110.56.24.312.13.0
mixed broadleaf forest10.09.522.29.88.75.94.24.1..3.13.17.82.5
pure broadleaf forest39.915.538.911.539.110.220.88.3..68.78.240.64.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.70.22.20.62.00.82.40.92.80.81.30.61.60.2
pure conifer forest24.21.251.72.139.52.671.42.678.82.136.42.543.20.8
mixed conifer forest25.01.321.81.824.82.36.11.46.11.26.71.318.20.7
mixed broadleaf forest19.51.111.51.413.91.86.11.45.41.16.91.313.00.6
pure broadleaf forest30.71.312.81.419.82.113.92.06.91.348.72.624.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.70.22.10.61.90.72.50.93.00.91.20.51.60.2
pure conifer forest24.11.250.62.139.52.570.72.678.82.035.32.442.90.8
mixed conifer forest25.01.221.81.724.12.26.31.46.21.26.71.218.00.7
mixed broadleaf forest19.41.111.91.413.61.86.01.35.21.16.61.212.80.6
pure broadleaf forest30.81.313.61.421.02.114.52.06.81.350.22.524.70.7
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, 03.11.2014 #164917/151299

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
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....0.41000.4100..1.158
pure conifer forest0.7711.1583.1335.1252.5382.53815.015
mixed conifer forest0.7711.4501.0580.7710.41000.7714.927
mixed broadleaf forest0.41001.4500.7710.3100..0.41003.233
pure broadleaf forest1.4502.5383.1331.744..7.82116.614
total3.6326.5237.9208.2203.23311.41740.89
outside perimetern/a2.9354.3292.4382.4383.9301.84517.714
pure conifer forest103.05102.1548.1772.05108.4348.97482.52
mixed conifer forest106.6542.9830.2106.2238.4209.019203.34
mixed broadleaf forest83.0622.71216.9136.2237.4219.219145.45
pure broadleaf forest130.9425.21124.11114.1159.51965.46269.33
total426.41197.32121.73100.93137.52134.431118.11
totaln/a3.2334.3292.4382.8354.2281.84518.714
pure conifer forest103.75103.1451.2777.24110.8351.47497.52
mixed conifer forest107.3544.4831.2106.9228.7209.818208.24
mixed broadleaf forest83.4624.21217.6136.5227.4219.619148.65
pure broadleaf forest132.3427.81127.21015.8149.51973.25285.83
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164918/151300

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of mixture %± %± %±
Western Juran/a..0.70.40.70.4
pure conifer forest12.411.729.12.228.72.2
mixed conifer forest25.415.528.12.228.02.2
mixed broadleaf forest12.411.721.92.021.82.0
pure broadleaf forest49.817.720.22.020.82.0
total100.0.100.0.100.0.
Eastern Juran/a......
pure conifer forest100.0.9.92.710.72.8
mixed conifer forest..17.43.517.23.4
mixed broadleaf forest..22.33.822.23.8
pure broadleaf forest..50.44.649.94.5
total100.0.100.0.100.0.
Western Plateaun/a..3.41.73.41.7
pure conifer forest..22.13.822.13.8
mixed conifer forest..22.03.822.03.8
mixed broadleaf forest..15.23.315.23.3
pure broadleaf forest..37.24.537.24.5
total..100.0.100.0.
Central Plateaun/a100.0...0.50.5
pure conifer forest..32.33.232.13.1
mixed conifer forest..22.72.822.62.8
mixed broadleaf forest..12.72.212.62.2
pure broadleaf forest..32.43.232.23.2
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.30.30.3
pure conifer forest..18.22.218.22.2
mixed conifer forest..26.52.526.52.5
mixed broadleaf forest..21.42.321.42.3
pure broadleaf forest..33.52.733.52.7
total..100.0.100.0.
Western Pre-Alpsn/a..3.31.63.31.6
pure conifer forest..53.34.652.94.6
mixed conifer forest100.0.15.03.315.73.3
mixed broadleaf forest..14.23.214.03.2
pure broadleaf forest..14.23.214.03.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.50.71.50.7
pure conifer forest25.021.750.73.150.43.0
mixed conifer forest..25.72.725.42.6
mixed broadleaf forest25.021.79.01.79.21.8
pure broadleaf forest50.025.013.12.113.62.1
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.51.12.41.1
pure conifer forest..37.93.437.43.4
mixed conifer forest..27.13.126.73.1
mixed broadleaf forest..16.82.616.52.6
pure broadleaf forest100.0.15.82.617.02.6
total100.0.100.0.100.0.
Northwestern Alpsn/a..2.51.22.31.2
pure conifer forest15.410.052.24.049.43.8
mixed conifer forest23.111.720.13.220.33.1
mixed broadleaf forest23.111.713.92.714.62.7
pure broadleaf forest38.513.511.32.513.42.6
total100.0.100.0.100.0.
Central Alpsn/a......
pure conifer forest72.713.450.76.153.85.7
mixed conifer forest9.18.714.84.314.03.9
mixed broadleaf forest..13.54.211.63.6
pure broadleaf forest18.211.721.05.020.64.6
total100.0.100.0.100.0.
Northeastern Alpsn/a..2.51.72.31.6
pure conifer forest11.110.535.05.432.65.0
mixed conifer forest22.213.926.24.925.84.7
mixed broadleaf forest22.213.97.53.09.03.0
pure broadleaf forest44.416.628.75.130.34.9
total100.0.100.0.100.0.
Southwestern Alpsn/a4.44.32.40.92.50.9
pure conifer forest62.39.971.42.670.72.6
mixed conifer forest8.35.66.11.46.31.4
mixed broadleaf forest4.24.16.11.46.01.3
pure broadleaf forest20.88.313.92.014.52.0
total100.0.100.0.100.0.
Southeastern Alpsn/a11.110.52.80.83.00.9
pure conifer forest77.813.978.82.178.82.0
mixed conifer forest11.110.56.11.26.21.2
mixed broadleaf forest..5.41.15.21.1
pure broadleaf forest..6.91.36.81.3
total100.0.100.0.100.0.
Southern Alpsn/a..1.30.61.20.5
pure conifer forest22.07.336.42.535.32.4
mixed conifer forest6.24.36.71.36.71.2
mixed broadleaf forest3.13.16.91.36.61.2
pure broadleaf forest68.78.248.72.650.22.5
total100.0.100.0.100.0.
Switzerlandn/a2.51.41.60.21.60.2
pure conifer forest36.84.443.00.842.80.8
mixed conifer forest12.23.118.10.717.90.7
mixed broadleaf forest7.82.513.10.612.90.6
pure broadleaf forest40.74.524.20.724.70.7
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164919/151301

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · degree of mixture · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of mixture1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.1581.158
pure conifer forest0.410043.6843.98
mixed conifer forest0.77142.1842.88
mixed broadleaf forest0.410032.9933.29
pure broadleaf forest1.45030.31031.710
total2.935150.02152.82
Eastern Juran/a......
pure conifer forest0.41004.7285.126
mixed conifer forest..8.3208.320
mixed broadleaf forest..10.71710.717
pure broadleaf forest..24.1924.19
total0.410047.8248.22
Western Plateaun/a..1.6491.649
pure conifer forest..10.71810.718
mixed conifer forest..10.71810.718
mixed broadleaf forest..7.4227.422
pure broadleaf forest..18.01218.012
total..48.4348.43
Central Plateaun/a0.3100..0.3100
pure conifer forest..22.11022.110
mixed conifer forest..15.51315.513
mixed broadleaf forest..8.7188.718
pure broadleaf forest..22.11022.110
total0.310068.4268.72
Eastern Plateaun/a..0.41000.4100
pure conifer forest..20.41220.412
mixed conifer forest..29.71029.710
mixed broadleaf forest..24.01124.011
pure broadleaf forest..37.5837.58
total..111.92111.92
Western Pre-Alpsn/a..1.5491.549
pure conifer forest..23.7923.79
mixed conifer forest0.41006.7227.021
mixed broadleaf forest..6.3236.323
pure broadleaf forest..6.3236.323
total0.410044.4444.84
Central Pre-Alpsn/a..1.4501.450
pure conifer forest0.410048.8649.16
mixed conifer forest..24.71124.711
mixed broadleaf forest0.41008.6209.019
pure broadleaf forest0.77112.51613.315
total1.45096.1297.52
Eastern Pre-Alpsn/a..1.8441.844
pure conifer forest..27.5927.59
mixed conifer forest..19.61219.612
mixed broadleaf forest..12.11612.116
pure broadleaf forest1.15711.41612.516
total1.15772.5373.63
Northwestern Alpsn/a..1.4501.450
pure conifer forest0.77129.7930.48
mixed conifer forest1.15711.41612.515
mixed broadleaf forest1.1577.9209.019
pure broadleaf forest1.8446.4238.220
total4.62756.8461.54
Central Alpsn/a......
pure conifer forest2.73411.81514.513
mixed conifer forest0.31003.4303.829
mixed broadleaf forest..3.1323.132
pure broadleaf forest0.7704.9265.624
total3.82923.2827.07
Northeastern Alpsn/a..0.7710.771
pure conifer forest0.410010.01710.416
mixed conifer forest0.7707.5208.219
mixed broadleaf forest0.7702.1402.934
pure broadleaf forest1.4498.2199.717
total3.23228.7731.96
Southwestern Alpsn/a0.41002.4382.835
pure conifer forest5.12572.0577.24
mixed conifer forest0.7716.2236.922
mixed broadleaf forest0.31006.2236.522
pure broadleaf forest1.74414.11515.814
total8.220100.93109.13
Southeastern Alpsn/a0.41003.9304.228
pure conifer forest2.538108.43110.83
mixed conifer forest0.41008.4208.720
mixed broadleaf forest..7.4217.421
pure broadleaf forest..9.5199.519
total3.233137.52140.62
Southern Alpsn/a..1.8451.845
pure conifer forest2.53848.9751.47
mixed conifer forest0.7719.0199.818
mixed broadleaf forest0.41009.2199.619
pure broadleaf forest7.82165.4673.25
total11.417134.43145.72
Switzerlandn/a1.05818.01419.014
pure conifer forest15.015482.22497.32
mixed conifer forest5.027203.34208.34
mixed broadleaf forest3.233146.55149.75
pure broadleaf forest16.614270.83287.53
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164920/151302

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · type of next treatment (interview survey) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtype of next treatment (interview survey) %± %± %± %± %± %± %±
inside perimeterno treatment11.310.6..22.56.654.310.250.017.769.78.043.14.6
tending..50.035.415.05.64.24.112.511.7..7.82.5
thinning33.315.7..10.04.78.35.6..3.03.08.62.6
establishment cut33.315.750.035.42.52.54.24.125.015.3..6.92.4
removal cut11.110.5..2.52.5......1.71.2
plentering..............
thinning of mountain forest11.110.5..45.07.929.19.312.511.724.27.530.14.3
coppice cut..........3.03.00.90.9
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest....2.52.5......0.90.9
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno treatment12.91.54.40.831.21.557.83.163.12.768.12.431.90.7
tending7.91.214.81.37.60.95.01.45.91.31.50.68.20.5
thinning25.91.935.91.814.51.22.71.03.41.06.21.218.20.7
establishment cut14.01.516.31.412.81.16.91.611.21.84.61.112.10.6
removal cut5.51.06.10.93.00.61.10.70.90.52.60.83.70.3
plentering13.01.53.20.75.80.80.40.41.90.80.30.34.90.4
thinning of mountain forest2.10.6..18.81.324.12.710.61.711.31.610.30.5
coppice cut0.40.30.60.3......3.60.90.60.1
conversion..1.10.40.40.2....0.80.40.50.1
transformation..0.40.20.10.1......0.10.1
sanitary felling1.90.61.70.50.90.31.10.7..0.30.31.10.2
plentering in broadleaf forest7.21.113.91.32.30.5......5.10.4
tending of forest edge0.90.41.70.51.10.3..1.20.60.30.31.00.2
planting0.20.2..........0.00.0
agrosilvicultural treatments8.11.20.10.11.60.40.80.51.60.70.50.42.20.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno treatment12.81.44.40.830.91.557.52.962.82.768.22.332.20.7
tending7.81.214.91.37.90.94.91.36.11.31.40.68.20.5
thinning26.01.935.81.814.31.13.21.03.41.05.91.217.90.6
establishment cut14.31.516.41.412.31.16.71.511.61.84.31.012.00.6
removal cut5.61.06.10.93.00.51.10.60.90.52.40.73.60.3
plentering12.81.43.20.65.60.70.40.41.80.70.20.24.70.4
thinning of mountain forest2.20.6..19.91.324.62.610.71.712.31.611.00.5
coppice cut0.40.30.60.3......3.60.90.60.1
conversion..1.10.40.40.2....0.70.40.50.1
transformation..0.40.20.10.1......0.10.1
sanitary felling1.90.61.70.50.80.31.10.6..0.20.21.00.2
plentering in broadleaf forest7.11.113.91.32.30.5......4.90.4
tending of forest edge0.90.41.70.51.00.3..1.20.60.20.21.00.2
planting0.20.2..........0.00.0
agrosilvicultural treatments8.01.20.10.11.50.40.70.51.50.70.50.32.10.2
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, 03.11.2014 #164921/151303

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure %± %± %±
Western Juran/a..0.70.40.70.4
single-layered30.712.831.42.331.32.2
multi-layered46.013.855.42.455.12.4
stratified15.310.012.31.612.41.6
clustered structure8.07.60.20.20.50.3
total100.0.100.0.100.0.
Eastern Juran/a......
single-layered..27.14.027.14.0
multi-layered..70.54.170.54.1
stratified..2.51.42.51.4
clustered structure......
total..100.0.100.0.
Western Plateaun/a..3.41.73.41.7
single-layered..33.24.433.24.4
multi-layered..59.14.559.14.5
stratified..3.41.73.41.7
clustered structure..0.90.90.90.9
total..100.0.100.0.
Central Plateaun/a..0.50.50.50.5
single-layered..40.73.340.73.3
multi-layered..52.43.452.43.4
stratified..6.41.76.41.7
clustered structure......
total..100.0.100.0.
Eastern Plateaun/a..0.30.30.30.3
single-layered..27.82.527.82.5
multi-layered..65.22.765.22.7
stratified..6.71.46.71.4
clustered structure......
total..100.0.100.0.
Western Pre-Alpsn/a22.314.01.81.33.31.6
single-layered33.015.736.64.636.34.4
multi-layered22.314.049.14.747.14.6
stratified22.314.010.72.911.62.9
clustered structure..1.81.31.71.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.60.81.50.7
single-layered36.811.132.02.932.42.8
multi-layered36.811.145.13.144.53.0
stratified21.19.420.22.520.22.4
clustered structure5.35.11.20.71.50.7
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.51.12.41.1
single-layered75.015.342.43.543.73.5
multi-layered25.015.346.03.545.13.5
stratified..9.12.08.72.0
clustered structure......
total100.0.100.0.100.0.
Northwestern Alpsn/a6.74.61.41.02.31.2
single-layered46.79.131.03.933.83.6
multi-layered36.78.847.24.245.33.8
stratified10.05.518.33.316.92.9
clustered structure..2.11.21.71.0
total100.0.100.0.100.0.
Central Alpsn/a......
single-layered33.312.236.56.135.95.5
multi-layered53.312.945.96.347.35.7
stratified13.38.817.64.816.84.3
clustered structure......
total100.0.100.0.100.0.
Northeastern Alpsn/a..2.92.02.31.6
single-layered33.311.129.65.430.34.9
multi-layered50.011.852.15.951.75.3
stratified11.27.515.54.314.63.8
clustered structure5.65.4..1.11.1
total100.0.100.0.100.0.
Southwestern Alpsn/a2.82.02.41.02.50.9
single-layered42.45.843.33.243.12.8
multi-layered31.55.431.83.031.72.6
stratified23.34.922.02.722.32.3
clustered structure..0.40.40.30.3
total100.0.100.0.100.0.
Southeastern Alpsn/a4.02.82.90.93.00.9
single-layered28.06.437.72.636.52.4
multi-layered48.07.133.12.534.92.4
stratified16.05.222.12.221.42.0
clustered structure4.02.84.21.14.21.0
total100.0.100.0.100.0.
Southern Alpsn/a..1.30.61.20.5
single-layered43.67.935.82.536.62.4
multi-layered38.57.850.82.649.62.5
stratified17.96.110.91.611.61.6
clustered structure..1.10.51.00.5
total100.0.100.0.100.0.
Switzerlandn/a3.01.01.50.21.60.2
single-layered39.02.934.70.935.10.8
multi-layered39.12.949.70.948.80.9
stratified17.12.313.10.613.40.6
clustered structure1.90.81.00.21.10.2
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164922/151304

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand structure · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.1581.158
single-layered1.45046.5847.97
multi-layered2.14182.1584.25
stratified0.77118.21318.913
clustered structure0.41000.41000.771
total4.627148.22152.82
Eastern Juran/a......
single-layered..13.11513.115
multi-layered..34.0634.06
stratified..1.2571.257
clustered structure......
total..48.2248.22
Western Plateaun/a..1.6491.649
single-layered..16.11316.113
multi-layered..28.6928.69
stratified..1.6491.649
clustered structure..0.41000.4100
total..48.4348.43
Central Plateaun/a..0.31000.3100
single-layered..28.0828.08
multi-layered..36.0736.07
stratified..4.4264.426
clustered structure......
total..68.7268.72
Eastern Plateaun/a..0.41000.4100
single-layered..31.1931.19
multi-layered..72.9472.94
stratified..7.5217.521
clustered structure......
total..111.92111.92
Western Pre-Alpsn/a0.7700.7701.549
single-layered1.15815.11316.213
multi-layered0.77020.41121.110
stratified0.7704.4285.225
clustered structure..0.7700.770
total3.33341.4444.84
Central Pre-Alpsn/a..1.4501.450
single-layered2.53729.01031.69
multi-layered2.53740.9743.47
stratified1.45018.31319.712
clustered structure0.41001.1581.450
total6.82290.7397.52
Eastern Pre-Alpsn/a..1.8441.844
single-layered2.14030.0932.18
multi-layered0.77132.5833.28
stratified..6.4236.423
clustered structure......
total2.93570.7373.63
Northwestern Alpsn/a0.7710.7711.450
single-layered5.02615.81420.811
multi-layered3.92923.91027.99
stratified1.1579.31810.417
clustered structure..1.1571.157
total10.71750.8561.54
Central Alpsn/a......
single-layered1.7448.0199.717
multi-layered2.73410.01612.814
stratified0.7703.8294.527
clustered structure......
total5.22421.8927.07
Northeastern Alpsn/a..0.7710.771
single-layered2.1407.5209.717
multi-layered3.23213.21316.511
stratified0.7713.9294.727
clustered structure0.4100..0.4100
total6.42225.4831.96
Southwestern Alpsn/a0.7712.1412.835
single-layered10.61736.4847.07
multi-layered7.92026.81034.69
stratified5.82418.51324.411
clustered structure..0.31000.3100
total25.01184.14109.13
Southeastern Alpsn/a0.7713.5314.228
single-layered4.92646.4751.37
multi-layered8.42040.7849.27
stratified2.83527.21030.110
clustered structure0.7715.2265.924
total17.613123.13140.62
Southern Alpsn/a..1.8451.845
single-layered6.02447.3753.37
multi-layered5.32567.0672.35
stratified2.53814.41516.914
clustered structure..1.4501.450
total13.815131.93145.72
Switzerlandn/a2.93516.11519.014
single-layered37.69370.13407.72
multi-layered37.69529.02566.62
stratified16.514139.45155.94
clustered structure1.84510.71812.417
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164923/151305

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedregeneration cover %± %± %± %± %± %± %±
inside perimeter< 1%....10.02.95.92.914.35.44.93.48.41.7
1-9%38.413.5..33.64.547.16.131.07.148.87.839.02.9
10-25%23.211.7..33.64.533.85.731.07.124.36.731.32.8
26-50%7.77.4..10.93.011.83.914.35.419.66.212.82.0
51-75%7.77.4..6.42.3..9.54.5..4.41.2
76-100%23.011.7..5.52.21.51.5..2.42.44.01.2
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%2.90.73.40.75.00.76.01.67.31.56.81.34.80.4
1-9%20.61.815.11.330.11.642.03.439.82.945.82.628.50.8
10-25%23.81.923.31.632.21.628.63.131.62.727.02.327.60.8
26-50%19.61.721.91.518.61.317.02.614.32.113.91.818.50.7
51-75%16.01.618.01.48.91.05.11.55.51.34.61.111.20.6
76-100%17.11.618.31.45.20.81.40.81.40.71.80.79.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.80.73.40.75.60.76.01.48.21.56.61.25.10.4
1-9%21.01.815.11.330.51.543.22.938.72.746.12.429.40.8
10-25%23.81.823.31.632.31.529.82.731.62.626.82.227.90.8
26-50%19.31.721.91.517.71.215.82.214.31.914.41.718.00.7
51-75%15.81.618.01.48.60.93.91.16.01.34.21.010.70.5
76-100%17.31.618.31.45.30.71.40.71.20.61.90.79.00.5
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, 03.11.2014 #164924/151306

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter< 1%....3.9301.4502.1410.7718.121
1-9%1.845..13.11611.0174.6277.12237.69
10-25%1.158..13.1167.9204.6273.63130.211
26-50%0.4100..4.3292.7352.1412.93512.317
51-75%0.4100..2.538..1.450..4.329
76-100%1.158..2.1410.3100..0.41003.930
total4.727..39.0923.31114.81514.61596.46
outside perimeter< 1%5.4268.82015.3154.4277.4219.31950.68
1-9%38.9938.9992.1531.2940.2862.06303.33
10-25%45.0859.8798.4521.21232.0936.69293.03
26-50%37.1956.2757.0712.71614.51518.813196.24
51-75%30.31046.3827.2113.8305.6256.323119.45
76-100%32.41047.0816.0151.0581.4502.538100.46
total189.22257.11305.9274.34101.13135.431062.91
total< 1%5.4268.82019.2135.8249.51910.01858.78
1-9%40.7938.99105.2542.2744.8769.16340.93
10-25%46.1859.87111.5529.1936.6840.28323.23
26-50%37.5956.2761.2715.41416.61421.612208.54
51-75%30.61046.3829.7113.8307.0226.323123.75
76-100%33.5947.0818.2141.4501.4502.835104.35
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164925/151307

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · regeneration cover · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonregeneration cover %± %± %±
AG< 1%..3.31.63.31.6
1-9%..9.82.79.82.7
10-25%..16.43.416.43.4
26-50%..22.13.822.13.8
51-75%..19.73.619.73.6
76-100%..28.74.128.74.1
total..100.0.100.0.
AI< 1%66.727.915.110.124.711.0
1-9%33.328.054.614.150.712.8
10-25%..15.110.112.38.4
26-50%..7.67.56.26.1
51-75%..7.67.56.26.1
76-100%......
total100.0.100.0.100.0.
AR< 1%100.0.4.24.28.05.5
1-9%..33.39.832.09.5
10-25%..37.510.036.09.7
26-50%..20.88.420.08.1
51-75%......
76-100%..4.24.24.04.0
total100.0.100.0.100.0.
BE< 1%4.73.32.00.72.20.7
1-9%40.37.626.92.128.12.0
10-25%40.77.629.62.130.52.1
26-50%9.54.519.01.818.21.7
51-75%4.73.311.51.510.91.4
76-100%..11.01.510.11.4
total100.0.100.0.100.0.
BL/BS< 1%..3.92.83.92.8
1-9%..3.92.83.92.8
10-25%..27.26.327.26.3
26-50%..27.66.327.66.3
51-75%..15.75.115.75.1
76-100%..21.65.821.65.8
total..100.0.100.0.
FR< 1%..3.61.83.51.7
1-9%66.727.319.83.821.13.8
10-25%..37.84.636.84.5
26-50%33.327.319.83.820.23.8
51-75%..16.23.515.83.4
76-100%..2.71.52.61.5
total100.0.100.0.100.0.
GE< 1%..14.814.614.814.6
1-9%..14.814.614.814.6
10-25%..29.518.729.518.7
26-50%..14.814.614.814.6
51-75%..14.814.614.814.6
76-100%..11.410.311.410.3
total..100.0.100.0.
GL< 1%18.311.88.84.911.14.7
1-9%17.511.335.38.331.06.9
10-25%45.815.114.76.122.36.3
26-50%9.28.817.66.615.65.5
51-75%..14.76.111.14.7
76-100%9.28.88.84.98.94.3
total100.0.100.0.100.0.
GR< 1%12.94.38.11.38.71.3
1-9%35.56.142.92.442.02.2
10-25%30.65.929.12.229.32.1
26-50%11.34.013.31.713.01.5
51-75%8.13.54.51.04.91.0
76-100%1.61.62.10.72.10.6
total100.0.100.0.100.0.
JU< 1%..2.41.72.31.6
1-9%..11.83.511.53.4
10-25%50.035.533.05.133.45.1
26-50%..16.44.016.03.9
51-75%..21.24.520.74.4
76-100%50.035.515.33.916.14.0
total100.0.100.0.100.0.
LU< 1%..3.21.63.11.5
1-9%50.035.523.23.823.73.8
10-25%50.035.535.44.335.64.3
26-50%..22.33.721.93.7
51-75%..11.12.811.02.8
76-100%..4.81.94.71.9
total100.0.100.0.100.0.
NE< 1%..1.21.21.11.1
1-9%..17.34.216.74.1
10-25%..22.44.521.64.4
26-50%..27.14.826.24.7
51-75%33.327.420.34.420.74.4
76-100%66.727.311.83.513.63.7
total100.0.100.0.100.0.
NW< 1%..11.88.010.06.9
1-9%..41.212.235.010.9
10-25%33.327.817.69.420.09.1
26-50%33.327.817.69.420.09.1
51-75%..5.95.85.05.0
76-100%33.327.85.95.810.06.9
total100.0.100.0.100.0.
OW< 1%..2.22.22.02.0
1-9%80.018.028.36.733.46.7
10-25%..43.47.439.16.9
26-50%..13.15.011.84.6
51-75%20.018.18.74.29.84.2
76-100%..4.43.03.92.7
total100.0.100.0.100.0.
SG< 1%20.012.77.12.28.02.2
1-9%20.012.725.73.725.33.6
10-25%30.014.530.03.930.03.8
26-50%20.012.719.33.319.33.2
51-75%..12.22.811.32.6
76-100%10.09.55.72.06.01.9
total100.0.100.0.100.0.
SH< 1%..8.34.78.34.7
1-9%..27.87.527.87.5
10-25%..11.15.311.15.3
26-50%..22.27.022.27.0
51-75%..13.95.813.95.8
76-100%..16.76.316.76.3
total..100.0.100.0.
SO< 1%......
1-9%..19.04.319.04.3
10-25%..21.44.521.44.5
26-50%..16.74.116.74.1
51-75%..15.54.015.54.0
76-100%..27.44.927.44.9
total..100.0.100.0.
SZ< 1%..5.62.75.12.5
1-9%16.715.336.15.734.65.4
10-25%50.020.530.65.532.05.3
26-50%16.715.322.24.921.84.7
51-75%16.715.34.22.45.12.5
76-100%..1.41.41.31.3
total100.0.100.0.100.0.
TG< 1%..7.03.07.03.0
1-9%..7.03.07.03.0
10-25%..18.24.618.24.6
26-50%..28.15.328.15.3
51-75%..20.04.820.04.8
76-100%..19.64.719.64.7
total..100.0.100.0.
TI< 1%..7.01.56.41.4
1-9%48.19.642.52.842.92.7
10-25%25.98.427.62.627.42.5
26-50%22.38.015.82.116.42.0
51-75%..5.21.34.81.2
76-100%3.73.62.00.82.10.8
total100.0.100.0.100.0.
UR< 1%10.09.54.53.15.53.1
1-9%20.012.718.05.818.35.3
10-25%40.015.629.26.931.26.3
26-50%10.09.534.67.230.16.3
51-75%20.012.79.04.311.04.3
76-100%..4.83.33.92.7
total100.0.100.0.100.0.
VD< 1%9.18.73.51.23.81.2
1-9%36.414.527.22.827.62.8
10-25%18.211.624.32.724.12.6
26-50%18.211.619.72.519.62.5
51-75%..12.42.111.92.0
76-100%18.211.612.82.113.12.1
total100.0.100.0.100.0.
VS< 1%5.52.75.71.55.71.3
1-9%49.45.942.13.243.72.8
10-25%31.55.429.42.929.92.6
26-50%12.33.815.92.315.12.0
51-75%..5.71.54.41.2
76-100%1.41.41.20.71.30.6
total100.0.100.0.100.0.
ZG< 1%..14.39.714.39.7
1-9%......
10-25%..28.612.528.612.5
26-50%..28.612.528.612.5
51-75%..7.17.17.17.1
76-100%..21.411.321.411.3
total..100.0.100.0.
ZH< 1%..2.11.22.11.2
1-9%..11.02.611.02.6
10-25%..20.73.420.73.4
26-50%..14.52.914.52.9
51-75%..24.83.624.83.6
76-100%..26.93.726.93.7
total..100.0.100.0.
Switzerland< 1%8.31.74.80.45.10.4
1-9%38.92.928.40.829.30.8
10-25%31.42.827.50.827.80.8
26-50%12.92.018.40.718.00.7
51-75%4.31.211.30.610.70.5
76-100%4.11.29.60.59.20.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164926/151308
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