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NFI2

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 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juran/a..0.50.40.50.3
critical..1.70.61.70.6
less stable24.915.337.92.437.62.4
stable75.115.359.92.460.22.4
total100.0.100.0.100.0.
Eastern Juran/a......
critical..1.71.21.71.2
less stable..39.94.539.54.5
stable100.0.58.44.658.84.5
total100.0.100.0.100.0.
Western Plateaun/a......
critical..3.51.73.51.7
less stable..44.44.744.44.7
stable..52.14.752.14.7
total..100.0.100.0.
Central Plateaun/a..1.40.81.40.8
critical..8.21.88.11.8
less stable100.0.44.13.444.33.3
stable..46.43.446.23.4
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.30.30.3
critical..4.21.14.21.1
less stable..38.32.838.32.8
stable..57.12.857.12.8
total..100.0.100.0.
Western Pre-Alpsn/a..0.90.90.90.9
critical..12.73.212.63.2
less stable..50.04.849.54.8
stable100.0.36.44.637.04.6
total100.0.100.0.100.0.
Central Pre-Alpsn/a..0.80.50.80.5
critical25.021.79.61.89.81.8
less stable50.025.050.03.150.03.1
stable25.021.739.63.039.43.0
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..1.60.91.60.9
critical33.327.39.52.19.82.1
less stable66.727.351.63.651.83.6
stable..37.43.536.83.5
total100.0.100.0.100.0.
Northwestern Alpsn/a..2.11.22.01.1
critical..14.22.913.12.7
less stable58.314.346.14.247.04.0
stable41.714.337.64.137.93.9
total100.0.100.0.100.0.
Central Alpsn/a..1.81.81.61.6
critical30.014.628.16.128.45.7
less stable50.015.946.16.846.76.2
stable20.012.724.05.823.35.3
total100.0.100.0.100.0.
Northeastern Alpsn/a..1.41.41.31.3
critical33.315.87.03.010.03.4
less stable44.416.660.55.858.75.5
stable22.213.931.05.530.05.1
total100.0.100.0.100.0.
Southwestern Alpsn/a4.44.31.20.71.50.7
critical8.35.610.01.99.91.8
less stable41.610.144.23.243.93.0
stable45.710.244.63.244.73.0
total100.0.100.0.100.0.
Southeastern Alpsn/a..0.60.40.60.4
critical..11.71.811.51.7
less stable16.715.248.02.747.52.7
stable83.315.239.72.740.42.7
total100.0.100.0.100.0.
Southern Alpsn/a3.43.41.00.61.20.6
critical13.96.56.81.47.41.4
less stable51.79.339.62.840.72.7
stable31.08.652.62.850.72.7
total100.0.100.0.100.0.
Switzerlandn/a1.91.30.90.20.90.2
critical13.03.27.80.57.90.5
less stable45.24.844.20.944.20.9
stable39.94.747.20.946.90.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156504/142883

NFI2

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 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..0.7710.771
critical..2.5382.538
less stable0.77155.3756.07
stable2.24187.5489.64
total2.935146.02148.92
Eastern Juran/a......
critical..0.8700.870
less stable..18.61218.612
stable0.410027.2827.68
total0.410046.6347.03
Western Plateaun/a......
critical..1.6491.649
less stable..21.01121.011
stable..24.51024.510
total..47.2447.24
Central Plateaun/a..0.9570.957
critical..5.6235.623
less stable0.310030.1830.48
stable..31.7831.78
total0.310068.4268.72
Eastern Plateaun/a..0.41000.4100
critical..4.6274.627
less stable..42.2742.27
stable..62.9562.95
total..110.12110.12
Western Pre-Alpsn/a..0.41000.4100
critical..5.2265.226
less stable..20.41120.411
stable0.410014.81315.213
total0.410040.7441.14
Central Pre-Alpsn/a..0.7710.771
critical0.41009.0199.319
less stable0.77146.6747.37
stable0.410036.9837.38
total1.45093.2394.72
Eastern Pre-Alpsn/a..1.1581.158
critical0.41006.4236.822
less stable0.77135.0835.77
stable..25.41025.410
total1.15767.9368.93
Northwestern Alpsn/a..1.1581.158
critical..7.1217.121
less stable2.53723.21025.79
stable1.84419.01220.711
total4.32850.4554.74
Central Alpsn/a..0.31000.3100
critical1.0575.2256.322
less stable1.7448.61810.315
stable0.7704.5265.224
total3.43018.61022.18
Northeastern Alpsn/a..0.41000.4100
critical1.1571.8442.934
less stable1.44915.41216.811
stable0.7707.9198.618
total3.23225.4828.76
Southwestern Alpsn/a0.41001.0581.450
critical0.7718.6199.319
less stable3.43137.7841.28
stable3.83038.1841.98
total8.22085.4493.73
Southeastern Alpsn/a..0.7710.771
critical..13.71513.715
less stable0.410056.2656.56
stable1.84546.4748.17
total2.141116.93119.03
Southern Alpsn/a0.41001.1581.450
critical1.4507.4218.820
less stable5.32543.2848.57
stable3.23357.3660.56
total10.318109.04119.33
Switzerlandn/a0.7718.8209.519
critical4.92779.6684.56
less stable17.214453.52470.72
stable15.215484.12499.32
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156505/142884

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....2.62.64.24.1....1.81.3
21-40%....2.62.612.76.9....3.71.8
41-60%11.310.6..21.16.620.88.333.319.324.17.921.33.9
61-80%11.110.5..28.97.437.49.950.020.417.47.126.74.3
over 80%77.613.9100.0.44.78.124.98.816.715.258.59.246.54.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.20.50.60.32.40.54.51.42.61.00.60.51.70.2
21-40%3.90.90.80.36.60.910.82.117.12.35.71.35.90.4
41-60%8.11.23.80.719.21.425.52.931.72.820.32.315.10.6
61-80%29.62.021.51.532.81.636.33.231.42.828.62.529.10.8
over 80%57.22.273.31.739.01.722.82.817.22.344.82.848.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.10.50.60.32.40.54.51.32.61.00.60.41.70.2
21-40%3.80.80.80.36.40.811.02.016.82.35.21.25.80.4
41-60%8.21.23.80.719.31.325.12.831.82.820.62.215.40.6
61-80%29.32.021.51.532.61.636.43.131.82.827.62.429.00.8
over 80%57.52.273.41.739.31.623.02.717.22.345.92.748.10.9
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 #156506/142885

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....0.41000.3100....0.771
21-40%....0.41001.058....1.450
41-60%0.4100..2.8351.7440.7712.5388.121
61-80%0.4100..3.9303.1331.1581.84510.218
over 80%2.5380.7716.0242.1410.41006.12417.714
total3.2330.77113.5168.2202.14110.31838.19
outside perimeter0-20%2.2411.4507.2223.5312.5370.77117.414
21-40%7.2222.14119.9138.22016.2146.42360.17
41-60%15.1159.51958.0719.51230.01022.712154.94
61-80%55.1754.5798.6527.71029.71032.010297.63
over 80%106.24185.63117.5517.41316.31450.27493.32
total185.92253.21301.1276.4494.63112.131023.21
total0-20%2.2411.4507.5223.8302.5370.77118.114
21-40%7.2222.14120.2139.31916.2146.42361.57
41-60%15.5159.51960.8721.21230.7925.211163.04
61-80%55.5754.57102.5530.8930.7933.89307.83
over 80%108.84186.33123.5419.51216.61456.27511.02
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156507/142886

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes) %± %± %±
AG0-20%......
21-40%......
41-60%..2.51.42.51.4
61-80%..24.83.924.83.9
over 80%..72.74.172.74.1
total..100.0.100.0.
AI0-20%......
21-40%..6.76.66.76.6
41-60%..20.010.620.010.6
61-80%..20.010.620.010.6
over 80%..53.313.253.313.2
total..100.0.100.0.
AR0-20%......
21-40%..4.04.04.04.0
41-60%..8.05.58.05.5
61-80%..24.08.724.08.7
over 80%..64.09.664.09.6
total..100.0.100.0.
BE0-20%6.26.01.50.61.70.6
21-40%..3.70.93.60.9
41-60%19.19.912.21.512.51.5
61-80%24.910.833.22.232.92.2
over 80%49.812.549.32.349.32.3
total100.0.100.0.100.0.
BL/BS0-20%......
21-40%......
41-60%..2.22.22.12.1
61-80%..26.26.525.66.4
over 80%100.0.71.66.772.26.6
total100.0.100.0.100.0.
FR0-20%......
21-40%..0.90.90.90.9
41-60%..12.73.212.73.2
61-80%..26.34.226.34.2
over 80%..60.14.760.14.7
total..100.0.100.0.
GE0-20%......
21-40%......
41-60%......
61-80%......
over 80%..100.0.100.0.
total..100.0.100.0.
GL0-20%..2.92.92.42.4
21-40%..2.92.92.42.4
41-60%28.617.217.66.619.56.2
61-80%28.617.220.67.022.06.5
over 80%42.918.955.98.653.77.9
total100.0.100.0.100.0.
GR0-20%..2.60.82.50.8
21-40%..13.71.713.21.7
41-60%39.912.631.82.432.12.3
61-80%33.512.232.12.432.12.3
over 80%26.611.419.92.020.12.0
total100.0.100.0.100.0.
JU0-20%..1.21.21.21.2
21-40%..2.41.72.31.6
41-60%..5.82.55.62.5
61-80%33.327.421.54.521.94.5
over 80%66.727.369.15.169.05.0
total100.0.100.0.100.0.
LU0-20%......
21-40%..4.01.84.01.8
41-60%..4.01.84.01.8
61-80%..28.94.128.94.1
over 80%..63.24.363.24.3
total..100.0.100.0.
NE0-20%..4.12.34.12.3
21-40%..2.31.62.31.6
41-60%..12.93.612.93.6
61-80%..38.65.338.65.3
over 80%..42.15.342.15.3
total..100.0.100.0.
NW0-20%......
21-40%..6.36.25.95.8
41-60%......
61-80%..43.812.641.212.2
over 80%100.0.50.012.752.912.3
total100.0.100.0.100.0.
OW0-20%..6.03.45.73.2
21-40%..4.12.93.92.7
41-60%50.035.720.45.821.65.8
61-80%50.035.730.76.631.46.5
over 80%..38.87.037.36.8
total100.0.100.0.100.0.
SG0-20%..0.80.80.70.7
21-40%..3.01.52.91.4
41-60%..15.83.215.33.1
61-80%25.021.729.34.029.23.9
over 80%75.021.751.24.351.94.3
total100.0.100.0.100.0.
SH0-20%......
21-40%..2.82.82.82.8
41-60%......
61-80%..25.07.325.07.3
over 80%..72.27.472.27.4
total..100.0.100.0.
SO0-20%......
21-40%......
41-60%..2.51.72.41.7
61-80%..17.34.216.94.1
over 80%100.0.80.24.480.74.4
total100.0.100.0.100.0.
SZ0-20%..2.92.12.82.0
21-40%..5.92.95.62.8
41-60%..17.74.716.94.5
61-80%33.327.427.95.528.25.4
over 80%66.727.345.66.046.55.9
total100.0.100.0.100.0.
TG0-20%..1.41.41.41.4
21-40%..2.82.02.82.0
41-60%..4.32.44.32.4
61-80%..32.75.632.75.6
over 80%..58.75.958.75.9
total..100.0.100.0.
TI0-20%..0.40.40.40.4
21-40%..5.71.55.21.4
41-60%15.08.016.52.416.42.3
61-80%15.08.027.02.826.12.7
over 80%70.010.250.43.251.93.1
total100.0.100.0.100.0.
UR0-20%..6.04.14.93.4
21-40%12.511.88.54.79.24.4
41-60%37.517.220.26.823.46.5
61-80%25.015.437.18.234.97.3
over 80%25.015.428.27.627.66.8
total100.0.100.0.100.0.
VD0-20%..1.60.81.60.8
21-40%..10.62.010.52.0
41-60%..15.52.315.42.3
61-80%..27.02.826.82.8
over 80%100.0.45.23.245.63.2
total100.0.100.0.100.0.
VS0-20%4.24.14.91.44.81.3
21-40%12.76.911.32.011.41.9
41-60%20.88.324.52.724.12.6
61-80%37.49.934.93.035.12.9
over 80%24.98.824.52.724.52.6
total100.0.100.0.100.0.
ZG0-20%......
21-40%......
41-60%......
61-80%..7.77.77.77.7
over 80%..92.37.292.37.2
total..100.0.100.0.
ZH0-20%..0.70.70.70.7
21-40%..0.70.70.70.7
41-60%..8.42.38.42.3
61-80%..19.63.319.63.3
over 80%..70.63.870.63.8
total..100.0.100.0.
Switzerland0-20%1.81.31.70.21.70.2
21-40%3.61.85.80.45.70.4
41-60%21.13.915.00.615.30.6
61-80%26.74.328.90.828.80.8
over 80%46.84.848.50.948.50.9
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #156508/142887

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
AG0-20%......
21-40%......
41-60%..1.2571.257
61-80%..12.11612.116
over 80%..35.4635.46
total..48.7248.72
AI0-20%......
21-40%..0.31000.3100
41-60%..1.0541.054
61-80%..1.0541.054
over 80%..2.6272.627
total..4.8114.811
AR0-20%......
21-40%..0.31000.3100
41-60%..0.6690.669
61-80%..1.9361.936
over 80%..5.1165.116
total..8.058.05
BE0-20%0.31002.4382.835
21-40%..5.8245.824
41-60%1.05819.21320.212
61-80%1.45052.1753.57
over 80%2.73577.3580.05
total5.525156.82162.32
BL/BS0-20%......
21-40%......
41-60%..0.41000.4100
61-80%..4.9264.926
over 80%0.410013.41213.811
total0.410018.7719.16
FR0-20%......
21-40%..0.41000.4100
41-60%..5.2255.225
61-80%..10.81610.816
over 80%..24.7824.78
total..41.1341.13
GE0-20%......
21-40%......
41-60%......
61-80%......
over 80%..2.2342.234
total..2.2342.234
GL0-20%..0.41000.4100
21-40%..0.41000.4100
41-60%0.8702.3393.133
61-80%0.8702.7363.531
over 80%1.2577.3198.517
total2.73613.11115.88
GR0-20%..3.5313.531
21-40%..18.81318.813
41-60%2.14143.6845.78
61-80%1.84544.0845.78
over 80%1.45027.21028.610
total5.226137.13142.33
JU0-20%..0.41000.4100
21-40%..0.8700.870
41-60%..1.9441.944
61-80%0.41007.0217.421
over 80%0.87022.6823.48
total1.25732.7333.93
LU0-20%......
21-40%..1.6441.644
41-60%..1.6441.644
61-80%..11.41511.415
over 80%..24.8824.88
total..39.3339.33
NE0-20%..1.1581.158
21-40%..0.6700.670
41-60%..3.5283.528
61-80%..10.61410.614
over 80%..11.51311.513
total..27.4427.44
NW0-20%......
21-40%..0.41000.4100
41-60%......
61-80%..2.7322.732
over 80%0.41003.1293.526
total0.41006.1146.513
OW0-20%..1.1571.157
21-40%..0.7700.770
41-60%0.41003.7294.127
61-80%0.41005.6226.021
over 80%..7.1197.119
total0.77018.3519.04
SG0-20%..0.41000.4100
21-40%..1.4501.450
41-60%..7.6217.621
61-80%0.410014.11414.514
over 80%1.15724.61025.79
total1.45048.1549.54
SH0-20%......
21-40%..0.41000.4100
41-60%......
61-80%..3.2293.229
over 80%..9.3119.311
total..12.8312.83
SO0-20%......
21-40%......
41-60%..0.8710.871
61-80%..5.3255.325
over 80%0.87024.6725.46
total0.87030.7431.44
SZ0-20%..0.7700.770
21-40%..1.4491.449
41-60%..4.3274.327
61-80%0.41006.9207.220
over 80%0.77011.21411.914
total1.15724.6625.75
TG0-20%..0.31000.3100
21-40%..0.6700.670
41-60%..0.9570.957
61-80%..6.9176.917
over 80%..12.31112.311
total..21.0421.04
TI0-20%..0.41000.4100
21-40%..5.0265.026
41-60%1.15814.61515.714
61-80%1.15824.01125.011
over 80%5.02644.8749.87
total7.22288.7495.94
UR0-20%..0.7710.771
21-40%0.31001.0571.349
41-60%1.0572.4373.330
61-80%0.7704.3265.024
over 80%0.7703.3304.027
total2.63411.71314.311
VD0-20%..1.5501.550
21-40%..9.8199.819
41-60%..14.41514.415
61-80%..25.01125.011
over 80%0.87141.8742.57
total0.87192.5393.23
VS0-20%0.31004.2294.527
21-40%1.0589.61810.717
41-60%1.74420.91222.611
61-80%3.13329.8932.99
over 80%2.14120.91223.011
total8.22085.4493.73
ZG0-20%......
21-40%......
41-60%......
61-80%..0.41000.4100
over 80%..5.1125.112
total..5.695.69
ZH0-20%..0.41000.4100
21-40%..0.41000.4100
41-60%..4.2284.228
61-80%..9.9179.917
over 80%..35.6635.66
total..50.4250.42
Switzerland0-20%0.77117.41418.114
21-40%1.45059.8761.17
41-60%8.121154.34162.44
61-80%10.218296.43306.63
over 80%17.914497.92515.82
total38.291025.711064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #156509/142888

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
inside perimeter0-20%......3.32.3..1.81.3
21-40%......6.63.2..3.71.8
41-60%11.010.4..25.015.321.35.224.17.921.23.9
61-80%11.110.5..25.015.334.46.117.47.126.74.2
over 80%77.913.8100.0.50.017.734.46.158.59.246.54.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.10.50.60.31.40.53.40.60.70.51.70.2
21-40%3.40.81.20.43.90.812.31.15.91.35.80.4
41-60%7.61.24.20.814.51.526.91.520.12.315.10.6
61-80%29.22.021.51.633.92.031.81.628.52.629.10.8
over 80%58.62.172.51.846.32.125.61.544.82.848.30.9
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.10.50.60.31.40.53.40.60.60.41.70.2
21-40%3.40.81.20.43.90.811.91.15.41.25.80.4
41-60%7.61.14.20.814.61.526.51.520.42.215.30.6
61-80%28.92.021.41.633.82.032.01.527.62.429.00.8
over 80%59.02.172.51.846.32.126.11.546.02.748.20.9
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 #156510/142889

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%......0.771..0.771
21-40%......1.450..1.450
41-60%0.4100..0.7714.5282.5388.121
61-80%0.4100..0.7717.3221.84510.118
over 80%2.6380.41001.4507.3226.02417.614
total3.3330.41002.93521.11210.31837.99
outside perimeter0-20%2.2411.4502.93510.1180.77117.314
21-40%6.6232.8357.92136.096.42359.77
41-60%14.6159.51929.21078.9621.912154.14
61-80%56.2748.5868.5693.5531.110297.83
over 80%112.84163.7393.4575.0648.97493.82
total192.42225.91201.82293.52109.041022.71
total0-20%2.2411.4502.93510.8180.77118.014
21-40%6.6232.8357.92137.496.42361.17
41-60%15.0159.51929.91083.4624.411162.14
61-80%56.6748.5869.26100.7532.99307.93
over 80%115.44164.1394.8582.3654.97511.42
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156511/142890

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..5.95.7..4.24.1....1.91.3
21-40%....4.54.412.76.9....3.71.8
41-60%10.19.617.69.322.78.920.88.333.319.324.17.921.33.9
61-80%10.09.529.411.127.39.537.49.950.020.417.47.126.84.3
over 80%79.912.747.112.145.510.624.98.816.715.258.59.246.54.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.90.32.00.61.90.84.91.42.70.90.70.51.70.2
21-40%2.20.46.71.14.41.211.32.015.02.05.91.35.90.4
41-60%5.70.718.01.716.62.124.52.731.22.520.12.315.10.6
61-80%25.01.335.82.126.92.534.93.031.52.528.52.629.10.8
over 80%66.21.437.62.150.12.824.52.719.52.244.82.848.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.80.32.10.61.80.74.81.32.70.90.60.41.70.2
21-40%2.20.46.41.14.41.111.41.914.71.95.41.25.80.4
41-60%5.80.718.01.717.02.124.12.631.32.520.42.215.30.6
61-80%24.81.335.62.126.92.435.12.931.92.527.62.429.00.8
over 80%66.31.437.92.149.82.724.52.619.52.246.02.748.20.9
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 #156512/142891

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%..0.4100..0.3100....0.771
21-40%....0.31001.058....1.450
41-60%0.41001.1581.7441.7440.7712.5388.121
61-80%0.41001.8452.1413.1331.1581.84510.218
over 80%2.9352.9353.4312.1410.41006.02417.614
total3.6326.1247.6218.2202.14110.31837.99
outside perimeter0-20%3.6323.6312.1414.2293.2330.77117.314
21-40%9.31912.3174.8269.61817.5136.42359.97
41-60%24.01233.21018.11320.91236.5921.912154.64
61-80%104.5566.0629.41029.8936.9931.110297.73
over 80%277.2269.2654.6620.91222.81148.97493.72
total418.51184.32109.1385.44116.93109.041023.21
total0-20%3.6324.0302.1414.5273.2330.77118.014
21-40%9.31912.3175.22510.71717.5136.42361.37
41-60%24.31234.31019.91322.61137.2924.411162.74
61-80%104.8567.8631.4932.9937.9832.99307.83
over 80%280.0272.1658.1623.01123.21154.97511.32
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156513/142892

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.50.61.50.6
21-40%..4.21.04.11.0
41-60%12.912.08.81.48.91.4
61-80%12.411.730.12.329.72.2
over 80%74.615.555.42.555.82.4
total100.0.100.0.100.0.
Eastern Jura0-20%......
21-40%..0.80.80.80.8
41-60%..3.41.73.41.7
61-80%..26.34.126.14.0
over 80%100.0.69.54.369.74.2
total100.0.100.0.100.0.
Western Plateau0-20%..1.71.21.71.2
21-40%..2.61.52.61.5
41-60%..6.12.26.12.2
61-80%..21.63.821.63.8
over 80%..67.94.467.94.4
total..100.0.100.0.
Central Plateau0-20%......
21-40%..0.90.60.90.6
41-60%..2.31.02.31.0
61-80%..17.02.516.92.5
over 80%100.0.79.92.780.02.7
total100.0.100.0.100.0.
Eastern Plateau0-20%..0.60.50.60.5
21-40%..1.00.61.00.6
41-60%..4.91.24.91.2
61-80%..24.72.524.72.5
over 80%..68.82.668.82.6
total..100.0.100.0.
Western Pre-Alps0-20%..0.90.90.90.9
21-40%..8.22.68.12.6
41-60%..21.83.921.63.9
61-80%100.0.31.84.532.44.5
over 80%..37.34.637.04.6
total100.0.100.0.100.0.
Central Pre-Alps0-20%..1.50.81.50.8
21-40%..3.51.13.41.1
41-60%50.025.012.72.113.32.1
61-80%25.021.739.63.039.43.0
over 80%25.021.742.73.142.43.0
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%..1.60.91.60.9
21-40%..2.11.02.11.0
41-60%..12.62.412.42.4
61-80%..27.43.226.93.2
over 80%100.0.56.33.657.03.6
total100.0.100.0.100.0.
Northwestern Alps0-20%8.38.03.61.63.91.6
21-40%..11.42.710.52.5
41-60%8.38.024.83.623.53.4
61-80%25.012.531.93.931.43.8
over 80%58.314.328.43.830.73.7
total100.0.100.0.100.0.
Central Alps0-20%..3.82.73.22.3
21-40%10.09.511.14.310.93.9
41-60%30.014.624.15.925.05.4
61-80%30.014.629.66.229.75.7
over 80%30.014.631.36.331.15.8
total100.0.100.0.100.0.
Northeastern Alps0-20%..1.41.41.21.2
21-40%..5.62.75.02.4
41-60%22.213.921.14.921.34.6
61-80%33.315.824.05.125.04.9
over 80%44.416.647.96.047.55.6
total100.0.100.0.100.0.
Southwestern Alps0-20%4.24.14.91.44.81.3
21-40%12.76.911.32.011.41.9
41-60%20.88.324.52.724.12.6
61-80%37.49.934.93.035.12.9
over 80%24.98.824.52.724.52.6
total100.0.100.0.100.0.
Southeastern Alps0-20%..2.70.92.70.9
21-40%..15.02.014.71.9
41-60%33.319.331.22.531.32.5
61-80%50.020.431.52.531.92.5
over 80%16.715.219.52.219.52.2
total100.0.100.0.100.0.
Southern Alps0-20%..0.70.50.60.4
21-40%..5.91.35.41.2
41-60%24.17.920.12.320.42.2
61-80%17.47.128.52.627.62.4
over 80%58.59.244.82.846.02.7
total100.0.100.0.100.0.
Switzerland0-20%1.81.31.70.21.70.2
21-40%3.71.85.90.45.80.4
41-60%21.33.915.10.615.40.6
61-80%26.84.329.20.829.10.8
over 80%46.54.848.10.948.10.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156514/142893

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%..2.2412.241
21-40%..6.1246.124
41-60%0.410012.91613.316
61-80%0.410043.9844.38
over 80%2.14181.0583.15
total2.935146.02148.92
Eastern Jura0-20%......
21-40%..0.41000.4100
41-60%..1.6491.649
61-80%..12.31612.316
over 80%0.410032.4732.87
total0.410046.6347.03
Western Plateau0-20%..0.8700.870
21-40%..1.2571.257
41-60%..2.9372.937
61-80%..10.21810.218
over 80%..32.0732.07
total..47.2447.24
Central Plateau0-20%......
21-40%..0.6710.671
41-60%..1.5441.544
61-80%..11.61511.615
over 80%0.310054.6454.94
total0.310068.4268.72
Eastern Plateau0-20%..0.7710.771
21-40%..1.1581.158
41-60%..5.4255.425
61-80%..27.21027.210
over 80%..75.8475.84
total..110.12110.12
Western Pre-Alps0-20%..0.41000.4100
21-40%..3.3323.332
41-60%..8.9198.919
61-80%0.410012.91513.314
over 80%..15.21315.213
total0.410040.7441.14
Central Pre-Alps0-20%..1.4501.450
21-40%..3.2333.233
41-60%0.77111.81612.516
61-80%0.410036.9837.38
over 80%0.410039.8840.28
total1.45093.2394.72
Eastern Pre-Alps0-20%..1.1571.157
21-40%..1.4501.450
41-60%..8.6198.619
61-80%..18.61218.612
over 80%1.15738.2739.37
total1.15767.9368.93
Northwestern Alps0-20%0.41001.8442.240
21-40%..5.7245.724
41-60%0.410012.51512.915
61-80%1.15716.11317.213
over 80%2.53714.31416.813
total4.32850.4554.74
Central Alps0-20%..0.7710.771
21-40%0.31002.1402.437
41-60%1.0574.5265.523
61-80%1.0575.5236.621
over 80%1.0575.8226.920
total3.43018.61022.18
Northeastern Alps0-20%..0.41000.4100
21-40%..1.4491.449
41-60%0.7705.4246.123
61-80%1.1576.1237.221
over 80%1.44912.21413.613
total3.23225.4828.76
Southwestern Alps0-20%0.31004.2294.527
21-40%1.0589.61810.717
41-60%1.74420.91222.611
61-80%3.13329.8932.99
over 80%2.14120.91223.011
total8.22085.4493.73
Southeastern Alps0-20%..3.2333.233
21-40%..17.51317.513
41-60%0.77136.5937.29
61-80%1.15836.9937.98
over 80%0.410022.81123.211
total2.141116.93119.03
Southern Alps0-20%..0.7710.771
21-40%..6.4236.423
41-60%2.53821.91224.411
61-80%1.84531.11032.99
over 80%6.02448.9754.97
total10.318109.04119.33
Switzerland0-20%0.77117.51418.214
21-40%1.45060.2761.57
41-60%8.121155.24163.34
61-80%10.218299.13309.33
over 80%17.714493.92511.52
total38.091025.911063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156515/142894

NFI2

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 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a..............
less than 10 years ago33.415.750.035.439.57.924.98.833.319.36.94.726.84.3
11-20 years ago22.213.950.035.423.76.94.24.116.715.213.96.516.83.6
21-30 years ago....7.94.416.97.733.319.310.35.711.13.0
31-40 years ago22.213.9..7.94.416.67.6..3.43.49.22.8
41-50 years ago11.110.5..7.94.44.24.1..13.86.48.42.7
over 50 years ago11.110.5..13.25.533.29.616.715.251.69.327.74.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a....0.10.1......0.00.0
less than 10 years ago54.32.268.61.740.21.720.22.732.52.911.41.844.40.9
11-20 years ago28.92.021.51.525.91.513.02.323.12.610.21.722.40.8
21-30 years ago8.11.25.60.912.81.111.72.210.81.98.91.69.50.5
31-40 years ago5.21.01.80.55.40.815.72.48.61.710.81.86.10.4
41-50 years ago1.00.41.30.44.60.712.12.24.51.314.92.04.80.4
over 50 years ago2.50.71.30.411.01.127.43.020.52.543.72.812.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a....0.10.1......0.00.0
less than 10 years ago53.92.268.51.740.21.620.62.632.52.811.11.743.80.9
11-20 years ago28.82.021.61.525.81.512.12.123.02.510.51.722.20.8
21-30 years ago8.01.25.60.912.61.112.22.111.31.99.01.59.50.5
31-40 years ago5.51.01.80.55.50.815.82.38.41.710.21.66.30.4
41-50 years ago1.10.51.30.44.70.711.32.04.41.214.81.94.90.4
over 50 years ago2.70.71.30.411.11.127.92.920.42.444.42.713.30.6
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 #156516/142895

NFI2

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 1993/95
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..............
less than 10 years ago1.1580.41005.3262.1410.7710.77110.218
11-20 years ago0.7710.41003.2330.31000.41001.4506.424
21-30 years ago....1.1581.4500.7711.1584.229
31-40 years ago0.771..1.1581.450..0.41003.532
41-50 years ago0.4100..1.1580.3100..1.4503.233
over 50 years ago0.4100..1.8452.7350.41005.32510.618
total3.2330.77113.5168.2202.14110.31838.19
outside perimetern/a....0.4100......0.4100
less than 10 years ago100.94173.63121.1515.41430.7912.816454.42
11-20 years ago53.7754.5777.969.91821.91211.417229.24
21-30 years ago15.11514.11538.798.91910.21810.01897.16
31-40 years ago9.7194.62816.31412.0168.12012.11762.97
41-50 years ago1.8453.23313.8169.2184.22816.71449.08
over 50 years ago4.7273.23333.01020.91219.41349.07130.25
total185.92253.21301.1276.4494.63112.131023.21
totaln/a....0.4100......0.4100
less than 10 years ago101.94174.03126.4417.41331.4913.516464.72
11-20 years ago54.4754.8781.1610.31722.21212.816235.63
21-30 years ago15.11514.11539.7910.31811.01711.017101.36
31-40 years ago10.4184.62817.41413.4158.12012.51666.47
41-50 years ago2.2413.23314.9159.6184.22818.21352.28
over 50 years ago5.0263.23334.81023.61119.71254.47140.85
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156517/142896

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
inside perimeter0-20%......1.71.0..1.10.7
21-40%7.77.4..2.92.811.52.411.55.410.11.9
41-60%7.67.3..17.16.425.13.339.98.325.12.7
61-80%23.111.7..40.08.338.33.734.38.037.23.0
over 80%61.613.5..40.08.323.43.214.35.926.52.7
total100.0...100.0.100.0.100.0.100.0.
outside perimeter0-20%1.10.50.60.31.50.53.80.70.70.51.70.2
21-40%3.20.81.20.43.90.812.01.24.61.25.40.4
41-60%7.61.24.20.814.41.526.81.618.22.214.40.7
61-80%29.12.021.41.633.42.030.51.726.82.628.30.9
over 80%58.92.272.51.846.72.226.81.649.72.950.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.10.50.60.31.40.53.40.60.60.41.70.2
21-40%3.40.81.20.43.90.811.91.15.41.25.80.4
41-60%7.61.14.20.814.61.526.51.520.42.215.30.6
61-80%28.92.021.41.633.82.032.01.527.62.429.00.8
over 80%59.02.172.51.846.32.126.11.546.02.748.20.9
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 #156518/142897

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%......1.058..1.058
21-40%0.4100..0.41006.9221.4509.120
41-60%0.4100..2.24115.2155.02622.712
61-80%1.158..5.02623.1124.32933.610
over 80%2.935..5.02614.2151.84523.912
total4.727..12.61660.5712.41690.36
outside perimeter0-20%2.2411.4502.9359.8190.77116.914
21-40%6.2242.8357.62230.5105.02652.18
41-60%14.6159.51927.71168.2719.413139.45
61-80%55.5748.5864.2677.6628.610274.43
over 80%112.54164.1389.8568.1753.17487.52
total190.92226.31192.12254.22106.94970.41
total0-20%2.2411.4502.93510.8180.77118.014
21-40%6.6232.8357.92137.496.42361.17
41-60%15.0159.51929.91083.4624.411162.14
61-80%56.6748.5869.26100.7532.99307.93
over 80%115.44164.1394.8582.3654.97511.42
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156519/142898

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%......2.82.02.32.2..1.10.7
21-40%7.77.43.62.510.34.914.24.211.44.811.55.410.01.9
41-60%7.87.516.14.925.67.025.35.229.56.939.98.325.12.7
61-80%23.111.744.66.628.27.239.45.838.67.334.38.037.23.0
over 80%61.513.535.76.435.97.718.34.618.25.814.35.926.42.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%0.90.32.30.72.00.85.51.62.70.90.70.51.80.2
21-40%2.10.46.81.23.71.110.42.215.22.14.61.25.40.4
41-60%5.70.718.21.815.92.123.73.031.52.718.22.214.40.7
61-80%24.91.334.52.226.82.633.73.330.92.726.82.628.20.9
over 80%66.41.438.12.251.62.926.73.119.72.349.72.950.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.80.32.10.61.80.74.81.32.70.90.60.41.70.2
21-40%2.20.46.41.14.41.111.41.914.71.95.41.25.80.4
41-60%5.80.718.01.717.02.124.12.631.32.520.42.215.30.6
61-80%24.81.335.62.126.92.435.12.931.92.527.62.429.00.8
over 80%66.31.437.92.149.82.724.52.619.52.246.02.748.20.9
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 #156520/142899

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%......0.7710.4100..1.058
21-40%0.41000.7711.4503.4311.8451.4509.120
41-60%0.41003.2333.4316.2234.6275.02622.812
61-80%1.1589.0203.8309.6186.0244.32933.710
over 80%2.9357.2224.8264.5272.8351.84523.912
total4.72820.21313.41524.41115.51412.41690.56
outside perimeter0-20%3.6324.0302.1413.8302.8350.77117.014
21-40%8.92011.5173.8307.22115.8145.02652.28
41-60%24.01231.01016.41416.51432.7919.413139.95
61-80%103.7558.8727.61023.31132.0928.610274.13
over 80%277.2264.9653.3618.51320.41253.17487.32
total417.41170.22103.2369.35103.63106.94970.61
total0-20%3.6324.0302.1414.5273.2330.77118.014
21-40%9.31912.3175.22510.71717.5136.42361.37
41-60%24.31234.31019.91322.61137.2924.411162.74
61-80%104.8567.8631.4932.9937.9832.99307.83
over 80%280.0272.1658.1623.01123.21154.97511.32
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156521/142900

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.50.61.50.6
21-40%7.77.44.01.04.11.0
41-60%8.07.68.91.48.91.4
61-80%23.011.729.92.329.72.2
over 80%61.413.555.62.555.82.4
total100.0.100.0.100.0.
Eastern Jura0-20%......
21-40%..0.80.80.80.8
41-60%..3.41.73.41.7
61-80%..26.14.026.14.0
over 80%..69.74.269.74.2
total..100.0.100.0.
Western Plateau0-20%..1.71.21.71.2
21-40%..2.61.52.61.5
41-60%..6.12.26.12.2
61-80%..21.63.821.63.8
over 80%..67.94.467.94.4
total..100.0.100.0.
Central Plateau0-20%......
21-40%..0.90.60.90.6
41-60%..2.31.02.31.0
61-80%..16.92.516.92.5
over 80%..80.02.780.02.7
total..100.0.100.0.
Eastern Plateau0-20%..0.60.50.60.5
21-40%..1.00.61.00.6
41-60%..4.91.24.91.2
61-80%..24.72.524.72.5
over 80%..68.82.668.82.6
total..100.0.100.0.
Western Pre-Alps0-20%..1.01.00.90.9
21-40%..8.82.88.12.6
41-60%..23.24.221.63.9
61-80%49.717.731.14.632.44.5
over 80%50.317.736.04.737.04.6
total100.0.100.0.100.0.
Central Pre-Alps0-20%..1.60.81.50.8
21-40%..3.71.23.41.1
41-60%21.19.412.72.113.32.1
61-80%47.411.538.83.139.43.0
over 80%31.610.743.33.242.43.0
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%..1.60.91.60.9
21-40%12.511.71.60.92.11.0
41-60%25.015.311.92.412.42.4
61-80%12.511.727.63.326.93.2
over 80%50.017.757.33.657.03.6
total100.0.100.0.100.0.
Northwestern Alps0-20%..4.91.93.91.6
21-40%6.94.711.32.910.52.5
41-60%17.27.025.03.923.53.4
61-80%41.49.229.04.131.43.8
over 80%34.58.829.84.130.73.7
total100.0.100.0.100.0.
Central Alps0-20%..4.12.93.22.3
21-40%14.39.410.04.210.93.9
41-60%28.612.124.06.125.05.4
61-80%35.712.928.06.429.75.7
over 80%21.411.033.86.731.15.8
total100.0.100.0.100.0.
Northeastern Alps0-20%..1.61.61.21.2
21-40%5.95.74.82.75.02.4
41-60%23.510.320.65.121.34.6
61-80%29.411.123.85.425.04.9
over 80%41.212.049.26.347.55.6
total100.0.100.0.100.0.
Southwestern Alps0-20%2.82.05.51.64.81.3
21-40%14.24.210.42.211.41.9
41-60%25.35.223.73.024.12.6
61-80%39.45.833.73.335.12.9
over 80%18.34.626.73.124.52.6
total100.0.100.0.100.0.
Southeastern Alps0-20%2.32.22.70.92.70.9
21-40%11.44.815.22.114.71.9
41-60%29.56.931.52.731.32.5
61-80%38.67.330.92.731.92.5
over 80%18.25.819.72.319.52.2
total100.0.100.0.100.0.
Southern Alps0-20%..0.70.50.60.4
21-40%11.55.44.61.25.41.2
41-60%39.98.318.22.220.42.2
61-80%34.38.026.82.627.62.4
over 80%14.35.949.72.946.02.7
total100.0.100.0.100.0.
Switzerland0-20%1.10.71.80.31.70.2
21-40%10.01.95.40.45.80.4
41-60%25.12.714.40.715.40.6
61-80%37.23.028.30.929.10.8
over 80%26.52.750.10.948.10.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156522/142901

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%..2.2412.241
21-40%0.41005.7256.124
41-60%0.410012.91613.316
61-80%1.15843.2844.38
over 80%2.93580.2583.15
total4.627144.22148.92
Eastern Jura0-20%......
21-40%..0.41000.4100
41-60%..1.6491.649
61-80%..12.31612.316
over 80%..32.8732.87
total..47.0347.03
Western Plateau0-20%..0.8700.870
21-40%..1.2571.257
41-60%..2.9372.937
61-80%..10.21810.218
over 80%..32.0732.07
total..47.2447.24
Central Plateau0-20%......
21-40%..0.6710.671
41-60%..1.5441.544
61-80%..11.61511.615
over 80%..54.9454.94
total..68.7268.72
Eastern Plateau0-20%..0.7710.771
21-40%..1.1581.158
41-60%..5.4255.425
61-80%..27.21027.210
over 80%..75.8475.84
total..110.12110.12
Western Pre-Alps0-20%..0.41000.4100
21-40%..3.3323.332
41-60%..8.9198.919
61-80%1.55011.81613.314
over 80%1.54913.71415.213
total2.93538.1541.14
Central Pre-Alps0-20%..1.4501.450
21-40%..3.2333.233
41-60%1.45011.11712.516
61-80%3.23334.1937.38
over 80%2.24038.0840.28
total6.82287.8394.72
Eastern Pre-Alps0-20%..1.1571.157
21-40%0.41001.1581.450
41-60%0.7717.9208.619
61-80%0.410018.21218.612
over 80%1.45037.9739.37
total2.93566.1368.93
Northwestern Alps0-20%..2.2402.240
21-40%0.7715.0265.724
41-60%1.84411.11712.915
61-80%4.32812.91517.213
over 80%3.63113.21516.813
total10.41744.3654.74
Central Alps0-20%..0.7710.771
21-40%0.7701.7442.437
41-60%1.4494.2285.523
61-80%1.7444.8256.621
over 80%1.0575.8226.920
total4.82517.31122.18
Northeastern Alps0-20%..0.41000.4100
21-40%0.41001.1571.449
41-60%1.4494.7266.123
61-80%1.8445.4257.221
over 80%2.53711.11513.613
total6.12222.6928.76
Southwestern Alps0-20%0.7713.8304.527
21-40%3.4317.22110.717
41-60%6.22316.51422.611
61-80%9.61823.31132.99
over 80%4.52718.51323.011
total24.41169.3593.73
Southeastern Alps0-20%0.41002.8353.233
21-40%1.84515.81417.513
41-60%4.62732.7937.29
61-80%6.02432.0937.98
over 80%2.83520.41223.211
total15.514103.63119.03
Southern Alps0-20%..0.7710.771
21-40%1.4505.0266.423
41-60%5.02619.41324.411
61-80%4.32928.61032.99
over 80%1.84553.1754.97
total12.416106.94119.33
Switzerland0-20%1.05817.21418.214
21-40%9.12052.4861.57
41-60%22.812140.55163.34
61-80%33.710275.53309.33
over 80%24.112487.52511.52
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156523/142902

NFI2

forest area: avalanches 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 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedtime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a..............
less than 10 years ago61.613.5..32.74.623.95.235.17.98.14.528.72.8
11-20 years ago15.410.0..24.04.216.44.516.26.113.65.719.02.4
21-30 years ago7.77.4..24.04.210.53.821.66.810.85.117.52.4
31-40 years ago15.410.0..7.72.622.45.15.43.713.55.612.32.0
41-50 years ago....3.81.98.93.52.72.75.43.75.01.4
over 50 years ago....7.72.617.94.718.96.448.78.217.52.4
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a....0.10.1......0.00.0
less than 10 years ago53.72.268.51.741.21.819.43.032.13.011.41.845.20.9
11-20 years ago29.12.021.61.526.01.610.52.324.02.810.11.722.50.8
21-30 years ago8.01.25.60.911.11.112.82.59.71.98.81.68.80.5
31-40 years ago5.31.01.80.55.20.813.42.58.91.89.81.75.70.4
41-50 years ago1.20.51.30.44.90.812.22.44.61.416.02.14.90.4
over 50 years ago2.70.71.30.411.51.131.73.520.62.643.92.812.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a....0.10.1......0.00.0
less than 10 years ago53.92.268.51.740.21.620.62.632.52.811.11.743.80.9
11-20 years ago28.82.021.61.525.81.512.12.123.02.510.51.722.20.8
21-30 years ago8.01.25.60.912.61.112.22.111.31.99.01.59.50.5
31-40 years ago5.51.01.80.55.50.815.82.38.41.710.21.66.30.4
41-50 years ago1.10.51.30.44.70.711.32.04.41.214.81.94.90.4
over 50 years ago2.70.71.30.411.11.127.92.920.42.444.42.713.30.6
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 #156524/142903

NFI2

forest area: avalanches 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 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches 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..............
less than 10 years ago2.935..12.1175.5244.6271.15826.111
11-20 years ago0.771..8.9203.8302.1411.84517.314
21-30 years ago0.4100..8.9202.4382.8351.45015.915
31-40 years ago0.771..2.8355.1250.7711.84511.217
41-50 years ago....1.4502.1410.41000.7714.528
over 50 years ago....2.8354.1282.5376.42315.815
total4.727..36.9922.91113.11613.21690.86
outside perimetern/a....0.4100......0.4100
less than 10 years ago99.14174.03114.3512.01626.81012.516438.62
11-20 years ago53.7754.8772.266.52220.11211.117218.44
21-30 years ago14.81514.11530.9107.9208.1209.61985.46
31-40 years ago9.7194.62814.5158.3207.42110.71855.28
41-50 years ago2.2413.23313.5167.5213.93017.41447.78
over 50 years ago5.0263.23332.01019.51217.31347.97124.95
total184.52253.91277.7261.6583.64109.24970.61
totaln/a....0.4100......0.4100
less than 10 years ago101.94174.03126.4417.41331.4913.516464.72
11-20 years ago54.4754.8781.1610.31722.21212.816235.63
21-30 years ago15.11514.11539.7910.31811.01711.017101.36
31-40 years ago10.4184.62817.41413.4158.12012.51666.47
41-50 years ago2.2413.23314.9159.6184.22818.21352.28
over 50 years ago5.0263.23334.81023.61119.71254.47140.85
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156525/142904

NFI2

forest area: avalanches 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 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGn/a......
less than 10 years ago..76.03.976.03.9
11-20 years ago..14.03.214.03.2
21-30 years ago..5.02.05.02.0
31-40 years ago..3.31.63.31.6
41-50 years ago..0.80.80.80.8
over 50 years ago..0.80.80.80.8
total..100.0.100.0.
AIn/a......
less than 10 years ago33.328.033.314.033.312.5
11-20 years ago..50.014.840.013.0
21-30 years ago66.727.98.38.220.010.6
31-40 years ago......
41-50 years ago..8.38.26.76.6
over 50 years ago......
total100.0.100.0.100.0.
ARn/a......
less than 10 years ago100.0.58.310.160.09.9
11-20 years ago..25.09.024.08.7
21-30 years ago..8.35.78.05.5
31-40 years ago......
41-50 years ago......
over 50 years ago..8.35.78.05.5
total100.0.100.0.100.0.
BEn/a......
less than 10 years ago34.27.455.22.453.42.3
11-20 years ago26.76.925.82.125.92.0
21-30 years ago24.36.77.41.38.81.3
31-40 years ago9.74.63.90.94.40.9
41-50 years ago..2.10.71.90.6
over 50 years ago5.03.55.61.15.51.1
total100.0.100.0.100.0.
BL/BSn/a......
less than 10 years ago..55.57.355.57.3
11-20 years ago..27.86.627.86.6
21-30 years ago..12.44.812.44.8
31-40 years ago..4.33.04.33.0
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
FRn/a......
less than 10 years ago..42.04.840.94.7
11-20 years ago100.0.25.24.227.34.3
21-30 years ago..17.83.717.33.6
31-40 years ago..5.62.25.52.2
41-50 years ago..2.81.62.71.6
over 50 years ago..6.52.46.42.3
total100.0.100.0.100.0.
GEn/a......
less than 10 years ago..58.123.758.123.7
11-20 years ago......
21-30 years ago......
31-40 years ago......
41-50 years ago..41.923.741.923.7
over 50 years ago......
total..100.0.100.0.
GLn/a......
less than 10 years ago50.015.935.58.739.07.7
11-20 years ago10.09.635.58.729.37.2
21-30 years ago20.012.86.54.59.84.7
31-40 years ago..6.54.54.93.4
41-50 years ago10.09.63.23.24.93.4
over 50 years ago10.09.612.96.112.25.2
total100.0.100.0.100.0.
GRn/a......
less than 10 years ago25.05.831.02.530.12.3
11-20 years ago25.15.821.92.222.32.1
21-30 years ago19.65.310.21.611.51.6
31-40 years ago5.43.08.81.58.31.4
41-50 years ago5.43.06.51.36.41.2
over 50 years ago19.65.321.62.221.32.0
total100.0.100.0.100.0.
JUn/a......
less than 10 years ago50.035.540.05.340.35.3
11-20 years ago50.035.538.95.339.15.3
21-30 years ago..8.13.07.92.9
31-40 years ago..4.72.34.62.3
41-50 years ago..1.21.21.21.2
over 50 years ago..7.12.86.92.7
total100.0.100.0.100.0.
LUn/a......
less than 10 years ago..54.54.553.64.5
11-20 years ago50.035.534.24.334.54.3
21-30 years ago50.035.58.92.69.62.6
31-40 years ago......
41-50 years ago......
over 50 years ago..2.41.42.41.4
total100.0.100.0.100.0.
NEn/a......
less than 10 years ago100.0.73.04.974.04.8
11-20 years ago..19.74.419.04.3
21-30 years ago..3.62.13.52.0
31-40 years ago..1.21.21.21.2
41-50 years ago..2.41.72.31.6
over 50 years ago......
total100.0.100.0.100.0.
NWn/a......
less than 10 years ago66.727.757.113.458.812.1
11-20 years ago..7.17.05.95.8
21-30 years ago......
31-40 years ago......
41-50 years ago..14.39.611.88.0
over 50 years ago33.327.821.411.223.510.5
total100.0.100.0.100.0.
OWn/a......
less than 10 years ago..37.07.233.46.6
11-20 years ago40.022.125.96.527.36.3
21-30 years ago..8.74.27.93.8
31-40 years ago20.018.16.53.77.93.8
41-50 years ago20.018.14.43.05.93.3
over 50 years ago20.018.117.45.617.75.4
total100.0.100.0.100.0.
SGn/a......
less than 10 years ago40.015.544.14.443.84.2
11-20 years ago20.012.727.64.027.03.8
21-30 years ago20.012.77.12.38.02.3
31-40 years ago10.09.57.12.37.32.2
41-50 years ago10.09.55.52.05.82.0
over 50 years ago..8.72.58.02.3
total100.0.100.0.100.0.
SHn/a......
less than 10 years ago..63.98.063.98.0
11-20 years ago..30.67.830.67.8
21-30 years ago..2.82.82.82.8
31-40 years ago......
41-50 years ago..2.82.82.82.8
over 50 years ago......
total..100.0.100.0.
SOn/a......
less than 10 years ago..55.45.455.45.4
11-20 years ago..31.35.131.35.1
21-30 years ago..2.41.72.41.7
31-40 years ago..7.22.97.22.9
41-50 years ago..1.21.21.21.2
over 50 years ago..2.41.72.41.7
total..100.0.100.0.
SZn/a......
less than 10 years ago50.020.540.06.140.85.9
11-20 years ago16.715.320.05.019.74.8
21-30 years ago16.715.310.83.911.33.8
31-40 years ago..10.83.99.93.6
41-50 years ago..7.73.37.03.1
over 50 years ago16.715.310.83.911.33.8
total100.0.100.0.100.0.
TGn/a......
less than 10 years ago..64.05.764.05.7
11-20 years ago..28.95.528.95.5
21-30 years ago..5.72.85.72.8
31-40 years ago......
41-50 years ago......
over 50 years ago..1.41.41.41.4
total..100.0.100.0.
TIn/a......
less than 10 years ago4.34.39.01.88.61.7
11-20 years ago4.34.39.41.99.01.7
21-30 years ago8.75.99.01.89.01.7
31-40 years ago17.47.99.81.910.51.9
41-50 years ago..16.42.414.92.2
over 50 years ago65.39.946.43.248.13.1
total100.0.100.0.100.0.
URn/a......
less than 10 years ago33.315.838.68.437.57.4
11-20 years ago..20.36.916.15.6
21-30 years ago33.315.812.05.716.45.7
31-40 years ago33.315.8..6.93.9
41-50 years ago..2.92.92.32.3
over 50 years ago..26.17.520.76.2
total100.0.100.0.100.0.
VDn/a......
less than 10 years ago50.015.850.03.350.03.2
11-20 years ago10.09.522.92.722.42.7
21-30 years ago20.012.711.42.111.82.1
31-40 years ago10.09.55.11.45.31.4
41-50 years ago10.09.53.81.24.01.3
over 50 years ago..6.81.66.51.6
total100.0.100.0.100.0.
VSn/a..0.50.50.40.4
less than 10 years ago23.95.121.32.922.02.5
11-20 years ago15.54.310.92.212.12.0
21-30 years ago12.84.013.42.413.22.1
31-40 years ago21.14.812.92.415.02.2
41-50 years ago8.43.311.92.311.01.9
over 50 years ago18.34.629.23.226.42.7
total100.0.100.0.100.0.
ZGn/a......
less than 10 years ago..76.911.976.911.9
11-20 years ago..15.410.415.410.4
21-30 years ago..7.77.77.77.7
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..100.0.100.0.
ZHn/a......
less than 10 years ago..72.73.772.73.7
11-20 years ago..19.63.319.63.3
21-30 years ago..5.61.95.61.9
31-40 years ago..1.41.01.41.0
41-50 years ago......
over 50 years ago..0.70.70.70.7
total..100.0.100.0.
Switzerlandn/a..0.00.00.00.0
less than 10 years ago28.72.845.20.943.80.9
11-20 years ago19.02.422.40.822.10.8
21-30 years ago17.32.38.80.59.50.5
31-40 years ago12.32.05.70.46.30.4
41-50 years ago5.11.44.90.45.00.4
over 50 years ago17.62.412.90.613.30.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #156526/142905

NFI2

forest area: avalanches 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 1993/95
avalanches 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..37.0637.06
11-20 years ago..6.8236.823
21-30 years ago..2.4402.440
31-40 years ago..1.6491.649
41-50 years ago..0.41000.4100
over 50 years ago..0.41000.4100
total..48.7248.72
AIn/a......
less than 10 years ago0.31001.3451.639
11-20 years ago..1.9341.934
21-30 years ago0.6690.31001.054
31-40 years ago......
41-50 years ago..0.31000.3100
over 50 years ago......
total1.0543.9174.811
ARn/a......
less than 10 years ago0.31004.5184.817
11-20 years ago..1.9361.936
21-30 years ago..0.6690.669
31-40 years ago......
41-50 years ago......
over 50 years ago..0.6690.669
total0.31007.768.05
BEn/a......
less than 10 years ago4.82681.8586.65
11-20 years ago3.83038.3842.18
21-30 years ago3.43110.91714.415
31-40 years ago1.4505.8247.221
41-50 years ago..3.1333.133
over 50 years ago0.7718.3209.019
total14.115148.22162.32
BL/BSn/a......
less than 10 years ago..10.61410.614
11-20 years ago..5.3245.324
21-30 years ago..2.4402.440
31-40 years ago..0.8700.870
41-50 years ago......
over 50 years ago......
total..19.1619.16
FRn/a......
less than 10 years ago..16.81216.812
11-20 years ago1.15710.11711.216
21-30 years ago..7.1217.121
31-40 years ago..2.2402.240
41-50 years ago..1.1571.157
over 50 years ago..2.6372.637
total1.15740.0441.13
GEn/a......
less than 10 years ago..1.3541.354
11-20 years ago......
21-30 years ago......
31-40 years ago......
41-50 years ago..0.9650.965
over 50 years ago......
total..2.2342.234
GLn/a......
less than 10 years ago1.9434.2276.221
11-20 years ago0.41004.2274.626
21-30 years ago0.8700.8701.549
31-40 years ago..0.8700.870
41-50 years ago0.41000.41000.870
over 50 years ago0.41001.5491.943
total3.92911.91215.88
GRn/a......
less than 10 years ago4.92638.0942.98
11-20 years ago4.92626.91131.810
21-30 years ago3.83012.61616.414
31-40 years ago1.05810.81711.917
41-50 years ago1.0588.0209.119
over 50 years ago3.83026.51130.310
total19.613122.83142.33
JUn/a......
less than 10 years ago0.410013.21413.613
11-20 years ago0.410012.91413.214
21-30 years ago..2.7372.737
31-40 years ago..1.6491.649
41-50 years ago..0.41000.4100
over 50 years ago..2.3402.340
total0.87033.1333.93
LUn/a......
less than 10 years ago..21.1921.19
11-20 years ago0.310013.21313.613
21-30 years ago0.31003.5293.828
31-40 years ago......
41-50 years ago......
over 50 years ago..0.9570.957
total0.67038.7339.33
NEn/a......
less than 10 years ago1.05719.3820.38
11-20 years ago..5.2235.223
21-30 years ago..1.0571.057
31-40 years ago..0.31000.3100
41-50 years ago..0.6700.670
over 50 years ago......
total1.05726.4527.44
NWn/a......
less than 10 years ago0.8693.1293.824
11-20 years ago..0.41000.4100
21-30 years ago......
31-40 years ago......
41-50 years ago..0.8690.869
over 50 years ago0.41001.2551.546
total1.2555.4176.513
OWn/a......
less than 10 years ago..6.4206.420
11-20 years ago0.7704.5265.224
21-30 years ago..1.5491.549
31-40 years ago0.41001.1571.549
41-50 years ago0.41000.7701.157
over 50 years ago0.41003.0333.431
total1.94317.2619.04
SGn/a......
less than 10 years ago1.45020.21121.711
11-20 years ago0.77012.61513.415
21-30 years ago0.7703.3334.029
31-40 years ago0.41003.3333.631
41-50 years ago0.41002.5372.935
over 50 years ago..4.0294.029
total3.63145.9549.54
SHn/a......
less than 10 years ago..8.2138.213
11-20 years ago..3.9263.926
21-30 years ago..0.41000.4100
31-40 years ago......
41-50 years ago..0.41000.4100
over 50 years ago......
total..12.8312.83
SOn/a......
less than 10 years ago..17.41017.410
11-20 years ago..9.8179.817
21-30 years ago..0.8700.870
31-40 years ago..2.3402.340
41-50 years ago..0.41000.4100
over 50 years ago..0.8700.870
total..31.4431.44
SZn/a......
less than 10 years ago1.1579.41610.515
11-20 years ago0.41004.7265.125
21-30 years ago0.41002.5362.934
31-40 years ago..2.5362.536
41-50 years ago..1.8441.844
over 50 years ago0.41002.5362.934
total2.24023.5625.75
TGn/a......
less than 10 years ago..13.4913.49
11-20 years ago..6.1206.120
21-30 years ago..1.2491.249
31-40 years ago......
41-50 years ago......
over 50 years ago..0.31000.3100
total..21.0421.04
TIn/a......
less than 10 years ago0.41007.9218.220
11-20 years ago0.41008.2208.620
21-30 years ago0.7717.9218.620
31-40 years ago1.4508.62010.018
41-50 years ago..14.31514.315
over 50 years ago5.42540.7846.17
total8.32087.6495.94
URn/a......
less than 10 years ago1.0574.4265.423
11-20 years ago..2.3362.336
21-30 years ago1.0571.4502.437
31-40 years ago1.057..1.057
41-50 years ago..0.31000.3100
over 50 years ago..3.0313.031
total3.03111.41414.311
VDn/a......
less than 10 years ago1.94444.7746.67
11-20 years ago0.410020.51220.912
21-30 years ago0.87110.21811.018
31-40 years ago0.41004.6284.927
41-50 years ago0.41003.4333.831
over 50 years ago..6.1246.124
total3.83189.4393.23
VSn/a..0.31000.3100
less than 10 years ago5.82414.71420.612
11-20 years ago3.8307.52111.317
21-30 years ago3.1339.31912.416
31-40 years ago5.1259.01914.115
41-50 years ago2.1418.22010.318
over 50 years ago4.52720.21224.711
total24.41169.3593.73
ZGn/a......
less than 10 years ago..4.3184.318
11-20 years ago..0.9680.968
21-30 years ago..0.41000.4100
31-40 years ago......
41-50 years ago......
over 50 years ago......
total..5.695.69
ZHn/a......
less than 10 years ago..36.7636.76
11-20 years ago..9.9179.917
21-30 years ago..2.8352.835
31-40 years ago..0.7700.770
41-50 years ago......
over 50 years ago..0.41000.4100
total..50.4250.42
Switzerlandn/a..0.31000.3100
less than 10 years ago26.011439.92465.92
11-20 years ago17.214218.14235.33
21-30 years ago15.61585.86101.46
31-40 years ago11.11756.0867.17
41-50 years ago4.62848.2852.88
over 50 years ago15.915125.35141.25
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #156527/142906
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