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NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand structure %± %± %± %± %± %±
inside perimetern/a3.92.7....2.41.2..1.80.7
single-layered31.46.537.512.146.37.831.73.668.35.940.72.7
multi-layered62.76.856.312.446.37.845.13.925.45.544.92.7
stratified2.01.96.36.17.34.114.62.83.22.29.11.6
clustered structure......6.11.93.22.23.51.0
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a4.10.94.30.86.11.04.60.82.61.04.50.4
single-layered30.12.145.92.034.52.132.21.741.73.036.40.9
multi-layered56.32.346.62.041.02.139.41.839.73.044.61.0
stratified8.71.33.20.713.71.515.81.312.12.010.70.6
clustered structure0.80.4..4.70.98.11.04.01.23.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.10.94.20.85.61.04.20.72.10.84.20.4
single-layered30.22.045.62.035.42.032.11.546.62.736.90.9
multi-layered56.92.146.92.041.42.140.41.637.02.644.60.9
stratified8.01.23.30.713.21.415.61.210.41.710.50.6
clustered structure0.70.4..4.40.97.70.93.91.13.70.3
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 #155172/141551

NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.771....1.450..2.141
single-layered5.8252.1416.82318.01415.21548.08
multi-layered11.7173.2336.82325.6115.72552.98
stratified0.41000.41001.1588.3200.77110.818
clustered structure......3.5310.7714.229
total18.6135.62514.81556.7722.312118.15
outside perimetern/a7.3229.51911.51711.8172.53842.69
single-layered53.37101.2565.6683.0640.48343.53
multi-layered99.74102.9477.96101.5538.59420.42
stratified15.3157.02226.01140.8911.717100.96
clustered structure1.550..9.02020.8133.93035.210
total177.02220.71189.92257.9297.04942.61
totaln/a8.0219.51911.51713.2162.53844.79
single-layered59.17103.3472.56101.0555.67391.62
multi-layered111.34106.1484.75127.1444.18473.42
stratified15.7157.42227.01149.1812.416111.75
clustered structure1.550..9.02024.2124.62739.39
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155173/141552

NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand structure %± %± %± %± %± %± %±
inside perimetern/a3.02.12.42.4..2.71.92.42.4..1.80.7
single-layered32.85.728.67.053.27.324.35.038.17.568.35.940.62.7
multi-layered61.26.057.17.640.47.245.95.838.17.525.45.544.82.7
stratified3.02.19.54.56.43.620.34.711.95.03.22.29.21.6
clustered structure..2.42.4..6.82.99.54.53.22.23.61.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a4.20.66.41.15.21.35.11.63.41.02.61.04.50.4
single-layered39.01.532.92.140.92.925.13.131.32.741.73.036.50.9
multi-layered50.81.538.92.242.12.945.23.536.42.839.73.044.51.0
stratified5.60.716.01.75.61.419.12.819.52.312.12.010.70.6
clustered structure0.40.25.81.16.21.45.61.69.41.74.01.23.70.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.20.66.11.04.41.14.41.33.21.02.10.84.20.4
single-layered38.61.432.62.042.62.724.92.632.22.546.62.737.00.9
multi-layered51.41.540.32.141.92.745.43.036.62.637.02.644.60.9
stratified5.40.715.51.65.71.319.42.418.62.110.41.710.50.6
clustered structure0.30.25.51.05.31.25.91.49.41.63.91.13.70.3
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 #155174/141553

NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.7710.4100..0.7710.4100..2.141
single-layered7.9214.3298.6196.2235.62515.21547.98
multi-layered14.7158.7206.62211.7165.6255.72552.88
stratified0.7711.4501.0585.1251.8450.77110.818
clustered structure..0.4100..1.7441.4500.7714.229
total24.01215.11516.21425.41014.81522.312117.85
outside perimetern/a16.81411.2185.2253.5313.5312.53842.79
single-layered155.2457.7741.1817.21332.7940.48344.33
multi-layered202.4368.2642.3830.9937.9838.59420.12
stratified22.21228.1115.72513.01520.31211.717101.16
clustered structure1.45010.1186.2233.8309.8183.93035.210
total398.11175.32100.4368.35104.3397.04943.41
totaln/a17.51411.5175.2254.2293.9302.53844.89
single-layered163.1462.0749.7723.31138.3855.67392.13
multi-layered217.1376.8648.8742.5743.5844.18473.02
stratified22.91229.6106.72318.21322.11212.416111.95
clustered structure1.45010.5186.2235.52511.2174.62739.49
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155175/141554

NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure %± %± %±
Western Juran/a4.93.43.20.93.40.9
single-layered26.86.928.72.328.52.2
multi-layered65.97.455.82.656.82.4
stratified2.42.411.21.610.31.5
clustered structure..1.10.51.00.5
total100.0.100.0.100.0.
Eastern Juran/a..7.32.56.72.3
single-layered50.015.934.94.636.24.4
multi-layered50.015.957.74.857.14.6
stratified......
clustered structure......
total100.0.100.0.100.0.
Western Plateaun/a..4.31.94.21.9
single-layered..42.44.741.74.6
multi-layered50.035.551.54.751.44.7
stratified50.035.51.81.32.61.5
clustered structure......
total100.0.100.0.100.0.
Central Plateaun/a..4.91.54.71.5
single-layered44.416.646.23.446.13.4
multi-layered55.616.644.23.444.73.4
stratified..4.71.54.51.4
clustered structure......
total100.0.100.0.100.0.
Eastern Plateaun/a..4.01.13.91.1
single-layered40.021.946.92.946.82.8
multi-layered60.021.946.52.946.82.8
stratified..2.60.92.60.9
clustered structure......
total100.0.100.0.100.0.
Western Pre-Alpsn/a..11.73.210.72.9
single-layered33.315.836.34.836.14.6
multi-layered66.715.741.24.943.34.7
stratified..4.92.14.52.0
clustered structure..5.92.35.42.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..4.71.34.61.3
single-layered40.015.529.52.929.92.8
multi-layered40.015.538.63.138.63.0
stratified20.012.722.42.622.32.6
clustered structure..4.71.34.51.3
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..4.71.64.11.4
single-layered54.510.640.93.842.53.5
multi-layered40.910.544.43.844.03.6
stratified4.54.55.81.85.71.7
clustered structure..4.11.53.61.3
total100.0.100.0.100.0.
Northwestern Alpsn/a4.34.35.42.05.21.8
single-layered21.78.636.94.234.63.9
multi-layered60.910.237.74.341.24.0
stratified8.75.912.32.911.82.6
clustered structure4.34.37.72.37.22.1
total100.0.100.0.100.0.
Central Alpsn/a..7.73.76.23.0
single-layered58.314.334.86.639.26.1
multi-layered33.313.749.97.046.86.3
stratified8.38.01.91.93.12.2
clustered structure..5.73.24.72.6
total100.0.100.0.100.0.
Northeastern Alpsn/a..4.52.53.72.1
single-layered46.213.946.36.146.35.6
multi-layered46.113.929.95.632.55.3
stratified7.77.47.53.27.53.0
clustered structure..11.94.010.03.4
total100.0.100.0.100.0.
Southwestern Alpsn/a2.71.95.11.64.41.3
single-layered24.35.025.13.124.92.6
multi-layered45.95.845.23.545.43.0
stratified20.34.719.12.819.42.4
clustered structure6.82.95.61.65.91.4
total100.0.100.0.100.0.
Southeastern Alpsn/a2.42.43.41.03.21.0
single-layered38.17.531.32.732.22.5
multi-layered38.17.536.42.836.62.6
stratified11.95.019.52.318.62.1
clustered structure9.54.59.41.79.41.6
total100.0.100.0.100.0.
Southern Alpsn/a..2.61.02.10.8
single-layered68.35.941.73.046.62.7
multi-layered25.45.539.73.037.02.6
stratified3.22.212.12.010.41.7
clustered structure3.22.24.01.23.91.1
total100.0.100.0.100.0.
Switzerlandn/a1.80.74.50.44.20.4
single-layered40.72.736.50.936.90.9
multi-layered44.82.744.61.044.60.9
stratified9.21.610.60.610.50.5
clustered structure3.51.03.70.43.70.3
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155176/141555

NFI1

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand structure · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.7714.3295.026
single-layered3.93038.6842.58
multi-layered9.61974.9584.65
stratified0.410015.01515.415
clustered structure..1.4501.450
total14.615134.32148.92
Eastern Juran/a..3.2343.234
single-layered2.04415.01417.012
multi-layered2.04424.9926.88
stratified......
clustered structure......
total4.03043.0447.03
Western Plateaun/a..2.0442.044
single-layered..19.71219.712
multi-layered0.410023.81024.310
stratified0.41000.8701.257
clustered structure......
total0.87046.3447.24
Central Plateaun/a..3.2313.231
single-layered1.25030.4831.78
multi-layered1.54429.1830.78
stratified..3.1313.131
clustered structure......
total2.83365.9368.72
Eastern Plateaun/a..4.3284.328
single-layered0.77150.8651.56
multi-layered1.15850.4651.56
stratified..2.9352.935
clustered structure......
total1.844108.32110.12
Western Pre-Alpsn/a..4.4284.428
single-layered1.15713.71414.813
multi-layered2.24015.61317.812
stratified..1.9441.944
clustered structure..2.2402.240
total3.33237.7541.14
Central Pre-Alpsn/a..4.3294.329
single-layered1.45026.91028.310
multi-layered1.45035.1836.68
stratified0.77120.41221.212
clustered structure..4.3284.328
total3.63191.1394.72
Eastern Pre-Alpsn/a..2.9352.935
single-layered4.32825.01029.39
multi-layered3.23327.1930.49
stratified0.41003.6313.929
clustered structure..2.5372.537
total7.92061.1468.93
Northwestern Alpsn/a0.41002.5372.935
single-layered1.84417.11318.912
multi-layered5.02617.51322.511
stratified0.7715.7246.423
clustered structure0.41003.6313.929
total8.22046.5654.74
Central Alpsn/a..1.4491.449
single-layered2.4376.2228.618
multi-layered1.4499.01710.316
stratified0.31000.31000.770
clustered structure..1.0571.057
total4.12718.01022.18
Northeastern Alpsn/a..1.1571.157
single-layered2.24011.11613.314
multi-layered2.1407.2219.317
stratified0.41001.8442.140
clustered structure..2.9342.934
total4.72624.0828.76
Southwestern Alpsn/a0.7713.5314.229
single-layered6.22317.21323.311
multi-layered11.71630.9942.57
stratified5.12513.01518.213
clustered structure1.7443.8305.525
total25.41068.3593.73
Southeastern Alpsn/a0.41003.5313.930
single-layered5.62532.7938.38
multi-layered5.62537.9843.58
stratified1.84520.31222.112
clustered structure1.4509.81811.217
total14.815104.33119.03
Southern Alpsn/a..2.5382.538
single-layered15.21540.4855.67
multi-layered5.72538.5944.18
stratified0.77111.71712.416
clustered structure0.7713.9304.627
total22.31297.04119.33
Switzerlandn/a2.14143.0945.19
single-layered48.18344.83392.82
multi-layered53.08421.92474.92
stratified10.918100.66111.55
clustered structure4.22935.41039.69
total118.25945.711063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155177/141556

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha15.410.0..19.23.922.55.127.07.329.87.522.52.6
20-39 m2/ha61.513.5..35.64.744.76.143.28.251.38.242.63.1
40-59 m2/ha23.211.7..33.64.628.35.521.66.813.55.627.12.8
from 60 m2/ha....11.53.14.52.58.14.55.43.77.81.7
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha26.82.025.51.628.21.645.03.733.23.151.82.931.40.9
20-39 m2/ha52.12.242.11.840.81.839.93.644.43.236.12.743.00.9
40-59 m2/ha18.91.728.01.722.91.512.82.516.92.49.81.720.80.8
from 60 m2/ha2.20.64.50.88.21.02.31.15.51.52.30.94.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha26.51.925.51.627.11.538.93.132.42.849.42.730.60.8
20-39 m2/ha52.42.242.11.840.21.641.23.144.23.037.82.643.00.9
40-59 m2/ha19.11.728.01.724.11.417.02.417.52.310.21.621.40.7
from 60 m2/ha2.10.64.50.88.60.92.91.15.81.42.60.95.00.4
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 #155178/141557

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha0.771..7.1225.2253.5313.93020.413
20-39 m2/ha2.935..13.11610.3175.7246.82338.79
40-59 m2/ha1.158..12.4176.5222.8351.84524.612
from 60 m2/ha....4.3291.0581.1580.7717.122
total4.727..36.9922.91113.11613.21690.86
outside perimeterto 19 m2/ha49.4864.7778.2627.71027.81056.67304.43
20-39 m2/ha96.25106.85113.2524.61037.1839.58417.42
40-59 m2/ha34.9971.1663.577.92014.11510.718202.24
from 60 m2/ha4.03011.31722.8121.4504.6272.53846.59
total184.52253.91277.7261.6583.64109.24970.61
totalto 19 m2/ha50.1764.7785.3632.9931.3960.56324.83
20-39 m2/ha99.14106.85126.3434.9842.8746.28456.12
40-59 m2/ha36.0971.1675.9614.41517.01312.516226.84
from 60 m2/ha4.03011.31727.0112.4385.7243.23353.68
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155179/141558

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees) %± %± %±
AGto 19 m2/ha..29.84.229.84.2
20-39 m2/ha..39.74.439.74.4
40-59 m2/ha..28.14.128.14.1
from 60 m2/ha..2.51.42.51.4
total..100.0.100.0.
AIto 19 m2/ha..8.38.26.76.6
20-39 m2/ha..25.012.820.010.6
40-59 m2/ha66.727.950.014.853.313.2
from 60 m2/ha33.328.016.711.120.010.6
total100.0.100.0.100.0.
ARto 19 m2/ha..12.56.912.06.6
20-39 m2/ha..37.510.036.09.7
40-59 m2/ha..37.510.036.09.7
from 60 m2/ha100.0.12.56.916.07.5
total100.0.100.0.100.0.
BEto 19 m2/ha19.46.221.22.021.11.9
20-39 m2/ha46.47.846.92.446.92.3
40-59 m2/ha31.87.326.12.126.62.0
from 60 m2/ha2.42.45.81.15.51.0
total100.0.100.0.100.0.
BL/BSto 19 m2/ha..38.47.138.47.1
20-39 m2/ha..40.67.240.67.2
40-59 m2/ha..18.85.718.85.7
from 60 m2/ha..2.12.12.12.1
total..100.0.100.0.
FRto 19 m2/ha66.727.325.24.226.34.2
20-39 m2/ha..33.64.632.74.5
40-59 m2/ha33.327.330.94.530.94.4
from 60 m2/ha..10.32.910.02.9
total100.0.100.0.100.0.
GEto 19 m2/ha..41.923.741.923.7
20-39 m2/ha..41.923.741.923.7
40-59 m2/ha..16.214.416.214.4
from 60 m2/ha......
total..100.0.100.0.
GLto 19 m2/ha30.014.632.38.531.77.3
20-39 m2/ha40.015.629.08.231.77.3
40-59 m2/ha10.09.622.67.619.56.2
from 60 m2/ha20.012.816.16.717.15.9
total100.0.100.0.100.0.
GRto 19 m2/ha28.56.035.22.534.32.4
20-39 m2/ha46.56.742.42.642.92.5
40-59 m2/ha19.65.317.92.018.11.9
from 60 m2/ha5.43.04.51.14.71.0
total100.0.100.0.100.0.
JUto 19 m2/ha50.035.520.04.420.74.4
20-39 m2/ha..57.65.456.35.3
40-59 m2/ha50.035.518.84.319.64.3
from 60 m2/ha..3.52.03.52.0
total100.0.100.0.100.0.
LUto 19 m2/ha..17.03.416.73.3
20-39 m2/ha..48.94.548.24.5
40-59 m2/ha50.035.528.44.128.74.1
from 60 m2/ha50.035.55.72.16.42.2
total100.0.100.0.100.0.
NEto 19 m2/ha..27.04.926.04.8
20-39 m2/ha100.0.58.25.459.75.3
40-59 m2/ha..12.13.611.73.5
from 60 m2/ha..2.71.92.61.8
total100.0.100.0.100.0.
NWto 19 m2/ha..28.612.323.510.5
20-39 m2/ha33.327.835.713.135.311.8
40-59 m2/ha66.727.735.713.141.212.2
from 60 m2/ha......
total100.0.100.0.100.0.
OWto 19 m2/ha..32.57.029.36.4
20-39 m2/ha20.018.128.36.727.56.3
40-59 m2/ha80.018.026.16.531.46.5
from 60 m2/ha..13.15.011.84.6
total100.0.100.0.100.0.
SGto 19 m2/ha30.014.523.63.824.13.7
20-39 m2/ha40.015.539.44.339.44.2
40-59 m2/ha20.012.724.43.824.13.7
from 60 m2/ha10.09.512.63.012.42.8
total100.0.100.0.100.0.
SHto 19 m2/ha..25.07.325.07.3
20-39 m2/ha..52.88.452.88.4
40-59 m2/ha..16.76.316.76.3
from 60 m2/ha..5.63.95.63.9
total..100.0.100.0.
SOto 19 m2/ha..24.14.724.14.7
20-39 m2/ha..55.45.555.45.5
40-59 m2/ha..19.34.419.34.4
from 60 m2/ha..1.21.21.21.2
total..100.0.100.0.
SZto 19 m2/ha33.319.324.65.425.35.2
20-39 m2/ha16.715.346.26.243.75.9
40-59 m2/ha50.020.523.15.225.35.2
from 60 m2/ha..6.23.05.62.8
total100.0.100.0.100.0.
TGto 19 m2/ha..41.35.941.35.9
20-39 m2/ha..36.05.836.05.8
40-59 m2/ha..19.94.819.94.8
from 60 m2/ha..2.82.02.82.0
total..100.0.100.0.
TIto 19 m2/ha30.59.652.63.250.73.1
20-39 m2/ha47.810.437.13.138.13.0
40-59 m2/ha17.47.98.21.89.01.7
from 60 m2/ha4.34.32.00.92.20.9
total100.0.100.0.100.0.
URto 19 m2/ha..35.78.328.36.9
20-39 m2/ha22.213.934.98.232.27.1
40-59 m2/ha44.416.723.67.428.06.9
from 60 m2/ha33.315.85.84.011.54.9
total100.0.100.0.100.0.
VDto 19 m2/ha10.09.538.13.236.93.1
20-39 m2/ha50.015.838.63.239.13.1
40-59 m2/ha20.012.720.32.620.32.6
from 60 m2/ha20.012.73.01.13.71.2
total100.0.100.0.100.0.
VSto 19 m2/ha21.24.943.13.537.42.9
20-39 m2/ha46.45.941.03.542.43.0
40-59 m2/ha26.75.313.92.417.22.3
from 60 m2/ha5.62.72.01.02.91.0
total100.0.100.0.100.0.
ZGto 19 m2/ha..46.214.346.214.3
20-39 m2/ha..53.814.253.814.2
40-59 m2/ha......
from 60 m2/ha......
total..100.0.100.0.
ZHto 19 m2/ha..27.33.727.33.7
20-39 m2/ha..48.34.248.34.2
40-59 m2/ha..21.73.521.73.5
from 60 m2/ha..2.81.42.81.4
total..100.0.100.0.
Switzerlandto 19 m2/ha22.62.631.50.930.70.8
20-39 m2/ha42.63.142.90.942.90.9
40-59 m2/ha27.12.820.80.821.30.7
from 60 m2/ha7.71.74.80.45.00.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155180/141559

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
AGto 19 m2/ha..14.51414.514
20-39 m2/ha..19.31119.311
40-59 m2/ha..13.71513.715
from 60 m2/ha..1.2571.257
total..48.7248.72
AIto 19 m2/ha..0.31000.3100
20-39 m2/ha..1.0541.054
40-59 m2/ha0.6691.9342.627
from 60 m2/ha0.31000.6691.054
total1.0543.9174.811
ARto 19 m2/ha..1.0551.055
20-39 m2/ha..2.9272.927
40-59 m2/ha..2.9272.927
from 60 m2/ha0.31001.0551.347
total0.31007.768.05
BEto 19 m2/ha2.73531.51034.29
20-39 m2/ha6.52369.5676.15
40-59 m2/ha4.52738.6843.18
from 60 m2/ha0.31008.5208.919
total14.115148.22162.32
BL/BSto 19 m2/ha..7.3197.319
20-39 m2/ha..7.7197.719
40-59 m2/ha..3.6313.631
from 60 m2/ha..0.41000.4100
total..19.1619.16
FRto 19 m2/ha0.77010.11710.816
20-39 m2/ha..13.41413.414
40-59 m2/ha0.410012.31512.715
from 60 m2/ha..4.1294.129
total1.15740.0441.13
GEto 19 m2/ha..0.9650.965
20-39 m2/ha..0.9650.965
40-59 m2/ha..0.41000.4100
from 60 m2/ha......
total..2.2342.234
GLto 19 m2/ha1.2573.9295.024
20-39 m2/ha1.5493.5315.024
40-59 m2/ha0.41002.7363.133
from 60 m2/ha0.8701.9432.736
total3.92911.91215.88
GRto 19 m2/ha5.62543.2848.87
20-39 m2/ha9.11952.0761.16
40-59 m2/ha3.83022.01225.811
from 60 m2/ha1.0585.6256.623
total19.613122.83142.33
JUto 19 m2/ha0.41006.6227.021
20-39 m2/ha..19.11019.110
40-59 m2/ha0.41006.2236.622
from 60 m2/ha..1.2571.257
total0.87033.1333.93
LUto 19 m2/ha..6.6206.620
20-39 m2/ha..19.01019.010
40-59 m2/ha0.310011.01511.314
from 60 m2/ha0.31002.2372.534
total0.67038.7339.33
NEto 19 m2/ha..7.1197.119
20-39 m2/ha1.05715.41016.39
40-59 m2/ha..3.2303.230
from 60 m2/ha..0.7710.771
total1.05726.4527.44
NWto 19 m2/ha..1.5461.546
20-39 m2/ha0.41001.9402.336
40-59 m2/ha0.8691.9402.732
from 60 m2/ha......
total1.2555.4176.513
OWto 19 m2/ha..5.6235.623
20-39 m2/ha0.41004.9245.223
40-59 m2/ha1.5494.5266.021
from 60 m2/ha..2.2392.239
total1.94317.2619.04
SGto 19 m2/ha1.15710.81711.916
20-39 m2/ha1.45018.11219.511
40-59 m2/ha0.77011.21711.916
from 60 m2/ha0.41005.8246.123
total3.63145.9549.54
SHto 19 m2/ha..3.2293.229
20-39 m2/ha..6.8166.816
40-59 m2/ha..2.1382.138
from 60 m2/ha..0.7700.770
total..12.8312.83
SOto 19 m2/ha..7.6207.620
20-39 m2/ha..17.41017.410
40-59 m2/ha..6.1236.123
from 60 m2/ha..0.41000.4100
total..31.4431.44
SZto 19 m2/ha0.7705.8236.521
20-39 m2/ha0.410010.91511.215
40-59 m2/ha1.1575.4236.521
from 60 m2/ha..1.4491.449
total2.24023.5625.75
TGto 19 m2/ha..8.7158.715
20-39 m2/ha..7.5177.517
40-59 m2/ha..4.2244.224
from 60 m2/ha..0.6700.670
total..21.0421.04
TIto 19 m2/ha2.53846.1748.77
20-39 m2/ha3.93032.6936.59
40-59 m2/ha1.4507.2228.620
from 60 m2/ha0.41001.8442.141
total8.32087.6495.94
URto 19 m2/ha..4.1274.127
20-39 m2/ha0.7704.0274.624
40-59 m2/ha1.3492.7344.027
from 60 m2/ha1.0570.7701.743
total3.03111.41414.311
VDto 19 m2/ha0.410034.1934.49
20-39 m2/ha1.94434.5936.48
40-59 m2/ha0.87118.21318.913
from 60 m2/ha0.8712.7373.433
total3.83189.4393.23
VSto 19 m2/ha5.22529.91035.09
20-39 m2/ha11.31728.41039.88
40-59 m2/ha6.5229.61816.114
from 60 m2/ha1.4501.4502.835
total24.41169.3593.73
ZGto 19 m2/ha..2.6322.632
20-39 m2/ha..3.0283.028
40-59 m2/ha......
from 60 m2/ha......
total..5.695.69
ZHto 19 m2/ha..13.71413.714
20-39 m2/ha..24.3924.39
40-59 m2/ha..10.91610.916
from 60 m2/ha..1.4491.449
total..50.4250.42
Switzerlandto 19 m2/ha20.513306.63327.03
20-39 m2/ha38.59417.92456.42
40-59 m2/ha24.512202.54227.04
from 60 m2/ha7.02246.5953.58
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155181/141560

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %±
inside perimeterto 19 m2/ha15.410.0..17.16.423.53.225.87.422.52.6
20-39 m2/ha61.613.5..25.77.442.33.754.38.442.63.1
40-59 m2/ha23.011.7..45.78.426.33.314.35.927.22.8
from 60 m2/ha....11.45.48.02.15.73.97.71.7
total100.0...100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha27.92.026.11.722.71.836.61.851.72.931.30.9
20-39 m2/ha51.62.242.92.041.32.140.91.836.12.843.00.9
40-59 m2/ha18.51.727.21.826.31.917.41.49.91.720.90.8
from 60 m2/ha1.90.63.90.89.81.35.00.82.30.94.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha27.61.926.11.722.41.734.01.649.02.730.60.8
20-39 m2/ha51.92.242.92.040.32.141.21.638.02.643.00.9
40-59 m2/ha18.71.727.21.827.51.919.11.310.41.721.40.7
from 60 m2/ha1.90.63.90.89.91.35.60.82.70.95.00.4
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 #155182/141561

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha0.771..2.24114.2153.23320.313
20-39 m2/ha2.935..3.23325.6116.72338.59
40-59 m2/ha1.158..5.82515.9141.84524.512
from 60 m2/ha....1.4504.8270.7717.022
total4.727..12.61660.5712.41690.36
outside perimeterto 19 m2/ha53.3759.0743.6892.9555.27304.13
20-39 m2/ha98.6597.0579.36104.1538.68417.52
40-59 m2/ha35.4961.5750.5844.3810.618202.34
from 60 m2/ha3.6318.82018.71312.8162.53846.59
total190.92226.31192.12254.22106.94970.41
totalto 19 m2/ha54.0759.0745.88107.1558.46324.43
20-39 m2/ha101.5497.0582.55129.6445.38455.92
40-59 m2/ha36.5961.5756.2760.2712.416226.94
from 60 m2/ha3.6318.82020.21317.6143.23353.48
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155183/141562

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha15.410.017.95.120.56.521.24.931.87.025.87.422.52.6
20-39 m2/ha61.513.537.56.528.27.246.45.940.97.454.38.442.63.1
40-59 m2/ha23.211.737.56.530.87.426.75.322.76.314.35.927.22.8
from 60 m2/ha..7.13.420.56.55.62.74.53.15.73.97.71.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha26.91.326.92.026.42.643.13.532.82.751.72.931.40.9
20-39 m2/ha46.81.541.12.337.82.841.03.544.52.936.12.843.00.9
40-59 m2/ha23.31.223.92.024.82.513.92.418.02.29.91.720.90.8
from 60 m2/ha3.00.58.11.311.01.82.01.04.71.22.30.94.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha26.81.325.91.925.72.437.42.932.72.549.02.730.60.8
20-39 m2/ha46.91.540.72.136.72.642.43.044.02.738.02.643.00.9
40-59 m2/ha23.31.225.41.925.52.417.22.318.62.110.41.721.40.7
from 60 m2/ha3.00.58.01.212.11.82.91.04.71.22.70.95.00.4
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 #155184/141563

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha0.7713.6312.8355.2254.9263.23320.413
20-39 m2/ha2.9357.6223.83011.3176.3236.72338.69
40-59 m2/ha1.1587.6214.1286.5223.5311.84524.612
from 60 m2/ha..1.4502.8351.4500.7710.7717.022
total4.72820.21313.41524.41115.51412.41690.56
outside perimeterto 19 m2/ha112.3545.8827.31029.91034.0955.27304.43
20-39 m2/ha195.3370.0639.0828.41046.0738.68417.32
40-59 m2/ha97.3540.7925.6119.61818.61310.618202.54
from 60 m2/ha12.51713.71611.4171.4504.9262.53846.49
total417.41170.22103.2369.35103.63106.94970.61
totalto 19 m2/ha113.0549.4830.01035.0938.9858.46324.83
20-39 m2/ha198.2377.5642.8839.8852.4745.38455.92
40-59 m2/ha98.4548.3829.71016.11422.11212.416227.14
from 60 m2/ha12.51715.11514.1152.8355.6253.23353.48
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155185/141564

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha15.310.026.72.226.42.2
20-39 m2/ha61.413.553.52.553.72.4
40-59 m2/ha23.311.817.81.918.01.9
from 60 m2/ha..2.00.71.90.7
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha..32.04.332.04.3
20-39 m2/ha..45.44.645.44.6
40-59 m2/ha..20.93.720.93.7
from 60 m2/ha..1.71.21.71.2
total..100.0.100.0.
Western Plateauto 19 m2/ha..24.24.024.24.0
20-39 m2/ha..32.34.432.34.4
40-59 m2/ha..36.54.536.54.5
from 60 m2/ha..7.02.47.02.4
total..100.0.100.0.
Central Plateauto 19 m2/ha..21.32.821.32.8
20-39 m2/ha..48.03.448.03.4
40-59 m2/ha..27.53.027.53.0
from 60 m2/ha..3.21.23.21.2
total..100.0.100.0.
Eastern Plateauto 19 m2/ha..30.22.630.22.6
20-39 m2/ha..43.22.843.22.8
40-59 m2/ha..23.42.423.42.4
from 60 m2/ha..3.21.03.21.0
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha37.717.229.14.529.74.4
20-39 m2/ha24.615.141.74.940.54.7
40-59 m2/ha37.717.216.53.718.03.7
from 60 m2/ha..12.63.311.73.1
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha10.57.120.42.619.72.5
20-39 m2/ha31.610.744.13.243.23.1
40-59 m2/ha52.611.528.62.930.32.8
from 60 m2/ha5.35.16.91.66.81.6
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha12.511.722.23.121.83.0
20-39 m2/ha12.511.737.33.636.33.5
40-59 m2/ha37.517.128.63.329.03.3
from 60 m2/ha37.517.111.92.413.02.4
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha17.27.037.94.434.03.8
20-39 m2/ha44.89.234.74.336.63.9
40-59 m2/ha27.68.321.03.722.23.4
from 60 m2/ha10.35.76.42.27.22.1
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha14.39.432.26.628.35.7
20-39 m2/ha21.411.041.87.037.46.1
40-59 m2/ha42.913.318.15.523.55.3
from 60 m2/ha21.411.08.03.810.93.9
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha29.411.133.36.032.55.3
20-39 m2/ha41.212.036.56.137.55.4
40-59 m2/ha17.69.319.15.018.84.4
from 60 m2/ha11.87.811.14.011.23.5
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha21.24.943.13.537.42.9
20-39 m2/ha46.45.941.03.542.43.0
40-59 m2/ha26.75.313.92.417.22.3
from 60 m2/ha5.62.72.01.02.91.0
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha31.87.032.82.732.72.5
20-39 m2/ha40.97.444.52.944.02.7
40-59 m2/ha22.76.318.02.218.62.1
from 60 m2/ha4.53.14.71.24.71.2
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha25.87.451.72.949.02.7
20-39 m2/ha54.38.436.12.838.02.6
40-59 m2/ha14.35.99.91.710.41.7
from 60 m2/ha5.73.92.30.92.70.9
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha22.52.631.40.930.60.8
20-39 m2/ha42.63.142.90.942.90.9
40-59 m2/ha27.22.820.90.821.40.7
from 60 m2/ha7.71.74.80.45.10.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155186/141565

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha0.77138.6839.38
20-39 m2/ha2.93577.1579.95
40-59 m2/ha1.15825.71126.811
from 60 m2/ha..2.9352.935
total4.627144.22148.92
Eastern Jurato 19 m2/ha..15.01415.014
20-39 m2/ha..21.41021.410
40-59 m2/ha..9.8189.818
from 60 m2/ha..0.8700.870
total..47.0347.03
Western Plateauto 19 m2/ha..11.41711.417
20-39 m2/ha..15.21415.214
40-59 m2/ha..17.21317.213
from 60 m2/ha..3.3343.334
total..47.2447.24
Central Plateauto 19 m2/ha..14.61314.613
20-39 m2/ha..33.0733.07
40-59 m2/ha..18.91118.911
from 60 m2/ha..2.2372.237
total..68.7268.72
Eastern Plateauto 19 m2/ha..33.2933.29
20-39 m2/ha..47.5747.57
40-59 m2/ha..25.71025.710
from 60 m2/ha..3.6313.631
total..110.12110.12
Western Pre-Alpsto 19 m2/ha1.15711.11612.215
20-39 m2/ha0.77115.91316.612
40-59 m2/ha1.1576.3237.421
from 60 m2/ha..4.8264.826
total2.93538.1541.14
Central Pre-Alpsto 19 m2/ha0.77117.91318.613
20-39 m2/ha2.24038.7840.98
40-59 m2/ha3.63125.11128.710
from 60 m2/ha0.41006.1246.523
total6.82287.8394.72
Eastern Pre-Alpsto 19 m2/ha0.410014.61415.014
20-39 m2/ha0.410024.61025.010
40-59 m2/ha1.15718.91220.012
from 60 m2/ha1.1577.9208.919
total2.93566.1368.93
Northwestern Alpsto 19 m2/ha1.84416.81318.612
20-39 m2/ha4.62715.41420.012
40-59 m2/ha2.9359.31912.216
from 60 m2/ha1.1572.9353.929
total10.41744.3654.74
Central Alpsto 19 m2/ha0.7705.6246.222
20-39 m2/ha1.0577.2208.218
40-59 m2/ha2.1403.1325.224
from 60 m2/ha1.0571.4492.437
total4.82517.31122.18
Northeastern Alpsto 19 m2/ha1.8447.5209.317
20-39 m2/ha2.5378.21910.716
40-59 m2/ha1.1574.3285.425
from 60 m2/ha0.7702.5373.232
total6.12222.6928.76
Southwestern Alpsto 19 m2/ha5.22529.91035.09
20-39 m2/ha11.31728.41039.88
40-59 m2/ha6.5229.61816.114
from 60 m2/ha1.4501.4502.835
total24.41169.3593.73
Southeastern Alpsto 19 m2/ha4.92634.0938.98
20-39 m2/ha6.32346.0752.47
40-59 m2/ha3.53118.61322.112
from 60 m2/ha0.7714.9265.625
total15.514103.63119.03
Southern Alpsto 19 m2/ha3.23355.2758.46
20-39 m2/ha6.72338.6845.38
40-59 m2/ha1.84510.61812.416
from 60 m2/ha0.7712.5383.233
total12.416106.94119.33
Switzerlandto 19 m2/ha20.413305.53325.93
20-39 m2/ha38.69417.42456.02
40-59 m2/ha24.612203.34227.94
from 60 m2/ha7.02247.0954.08
total90.86973.211063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155187/141566

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....5.82.33.12.15.43.7..3.91.2
critical....5.82.36.02.95.43.72.72.75.01.4
less stable30.912.8..60.64.838.86.051.48.270.37.553.63.1
stable69.112.8..27.94.452.26.137.88.027.07.337.53.0
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a3.50.84.30.86.00.96.71.93.01.12.60.94.50.4
critical3.50.87.00.95.90.88.92.19.31.93.61.16.00.5
less stable38.32.146.21.951.91.833.93.545.23.245.82.845.40.9
stable54.72.242.51.836.21.750.63.742.63.248.02.944.10.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.40.84.30.86.00.85.71.53.31.12.30.84.50.4
critical3.40.87.00.95.90.88.11.78.71.73.51.05.90.4
less stable38.12.146.21.952.91.735.23.046.03.048.52.746.10.9
stable55.02.242.51.835.21.651.03.242.03.045.72.743.60.9
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 #155188/141567

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....2.1410.7710.771..3.532
critical....2.1411.4500.7710.41004.628
less stable1.450..22.3128.9196.7229.31948.78
stable3.233..10.31812.0164.9263.63134.010
total4.727..36.9922.91113.11613.21690.86
outside perimetern/a6.52311.01816.8144.1282.5372.83543.79
critical6.52317.71416.4145.5247.7213.93057.88
less stable70.66117.44144.1420.91237.8850.07440.82
stable100.94107.95100.4531.2935.6952.47428.32
total184.52253.91277.7261.6583.64109.24970.61
totaln/a6.52311.01818.9134.8263.2332.83547.29
critical6.52317.71418.6146.8228.5204.32962.37
less stable72.06117.44166.4429.8944.5759.36489.52
stable104.14107.95110.7543.1740.6855.97462.32
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155189/141568

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability %± %± %±
AGn/a..5.82.15.82.1
critical..5.02.05.02.0
less stable..48.84.548.84.5
stable..40.54.540.54.5
total..100.0.100.0.
AIn/a..16.711.113.39.0
critical......
less stable66.727.950.014.853.313.2
stable33.328.033.314.033.312.5
total100.0.100.0.100.0.
ARn/a......
critical......
less stable..45.810.344.010.1
stable100.0.54.210.356.010.0
total100.0.100.0.100.0.
BEn/a7.34.14.91.05.11.0
critical2.42.45.51.15.31.0
less stable63.57.547.32.448.72.3
stable26.76.942.32.440.92.3
total100.0.100.0.100.0.
BL/BSn/a..8.54.18.54.1
critical..2.12.12.12.1
less stable..36.37.136.37.1
stable..53.07.353.07.3
total..100.0.100.0.
FRn/a33.327.39.32.89.92.8
critical..7.52.67.32.5
less stable..38.44.737.34.6
stable66.727.344.94.845.54.7
total100.0.100.0.100.0.
GEn/a......
critical......
less stable..62.922.362.922.3
stable..37.122.337.122.3
total..100.0.100.0.
GLn/a..6.54.54.93.4
critical10.09.612.96.112.25.2
less stable60.015.651.69.053.77.8
stable30.014.629.08.229.37.2
total100.0.100.0.100.0.
GRn/a3.62.53.71.03.70.9
critical7.13.48.51.58.31.4
less stable66.16.346.32.749.02.5
stable23.25.641.52.639.02.4
total100.0.100.0.100.0.
JUn/a..2.41.72.31.6
critical..1.21.21.21.2
less stable..30.65.029.94.9
stable100.0.65.85.266.65.1
total100.0.100.0.100.0.
LUn/a..2.81.62.71.5
critical..3.21.63.21.6
less stable50.035.561.64.461.44.4
stable50.035.532.44.232.74.2
total100.0.100.0.100.0.
NEn/a..6.62.96.42.8
critical..1.21.21.21.2
less stable..23.04.722.24.5
stable100.0.69.15.170.25.0
total100.0.100.0.100.0.
NWn/a......
critical......
less stable33.327.857.113.452.912.3
stable66.727.742.913.547.112.3
total100.0.100.0.100.0.
OWn/a..8.54.17.73.7
critical..8.74.27.93.8
less stable100.0.63.27.166.86.5
stable..19.65.917.75.4
total100.0.100.0.100.0.
SGn/a10.09.53.91.74.41.8
critical10.09.58.72.58.82.4
less stable20.012.755.94.453.34.3
stable60.015.531.54.133.64.0
total100.0.100.0.100.0.
SHn/a..5.63.95.63.9
critical..5.63.95.63.9
less stable..38.98.238.98.2
stable..50.08.450.08.4
total..100.0.100.0.
SOn/a..1.21.21.21.2
critical..3.62.13.62.1
less stable..67.55.267.55.2
stable..27.74.927.74.9
total..100.0.100.0.
SZn/a16.715.33.12.24.22.4
critical..4.62.64.22.4
less stable66.719.349.26.250.75.9
stable16.715.343.16.140.85.8
total100.0.100.0.100.0.
TGn/a..4.32.44.32.4
critical..7.13.17.13.1
less stable..39.85.939.85.9
stable..48.86.048.86.0
total..100.0.100.0.
TIn/a..2.51.02.20.9
critical..2.91.12.61.0
less stable56.610.343.13.244.33.0
stable43.410.351.53.250.83.1
total100.0.100.0.100.0.
URn/a..5.84.04.63.2
critical11.110.56.24.37.24.0
less stable77.813.967.68.169.77.1
stable11.110.520.36.918.45.9
total100.0.100.0.100.0.
VDn/a..4.21.34.01.3
critical10.09.56.81.66.91.6
less stable60.015.541.13.241.93.2
stable30.014.547.93.347.23.2
total100.0.100.0.100.0.
VSn/a2.92.06.51.75.51.4
critical5.62.77.91.97.31.6
less stable39.45.834.13.335.52.9
stable52.15.951.53.551.63.0
total100.0.100.0.100.0.
ZGn/a......
critical..15.410.415.410.4
less stable..38.513.938.513.9
stable..46.214.346.214.3
total..100.0.100.0.
ZHn/a..4.21.74.21.7
critical..9.12.49.12.4
less stable..44.14.244.14.2
stable..42.74.142.74.1
total..100.0.100.0.
Switzerlandn/a3.91.24.50.44.50.4
critical5.01.46.00.55.90.4
less stable53.53.145.40.946.10.9
stable37.53.044.10.943.50.9
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155190/141569

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %
AGn/a..2.8372.837
critical..2.4402.440
less stable..23.71023.710
stable..19.71119.711
total..48.7248.72
AIn/a..0.6690.669
critical......
less stable0.6691.9342.627
stable0.31001.3451.639
total1.0543.9174.811
ARn/a......
critical......
less stable..3.5233.523
stable0.31004.2204.518
total0.31007.768.05
BEn/a1.0587.2228.320
critical0.31008.2208.520
less stable8.91970.1679.15
stable3.83062.6666.46
total14.115148.22162.32
BL/BSn/a..1.6491.649
critical..0.41000.4100
less stable..6.9206.920
stable..10.11510.115
total..19.1619.16
FRn/a0.41003.7314.129
critical..3.0343.034
less stable..15.31315.313
stable0.77017.91118.711
total1.15740.0441.13
GEn/a......
critical......
less stable..1.4481.448
stable..0.8710.871
total..2.2342.234
GLn/a..0.8700.870
critical0.41001.5491.943
less stable2.3396.2218.517
stable1.2573.5314.626
total3.92911.91215.88
GRn/a0.7714.5275.225
critical1.45010.51811.917
less stable12.91656.9769.86
stable4.52750.9755.47
total19.613122.83142.33
JUn/a..0.8700.870
critical..0.41000.4100
less stable..10.11710.117
stable0.87021.8922.68
total0.87033.1333.93
LUn/a..1.1581.158
critical..1.3491.349
less stable0.310023.8824.28
stable0.310012.61312.913
total0.67038.7339.33
NEn/a..1.8451.845
critical..0.31000.3100
less stable..6.1216.121
stable1.05718.3819.28
total1.05726.4527.44
NWn/a......
critical......
less stable0.41003.1293.526
stable0.8692.3363.129
total1.2555.4176.513
OWn/a..1.5491.549
critical..1.5491.549
less stable1.94310.81312.710
stable..3.4313.431
total1.94317.2619.04
SGn/a0.41001.8442.240
critical0.41004.0294.328
less stable0.77025.7926.49
stable2.24014.51416.613
total3.63145.9549.54
SHn/a..0.7700.770
critical..0.7700.770
less stable..5.0215.021
stable..6.4176.417
total..12.8312.83
SOn/a..0.41000.4100
critical..1.1581.158
less stable..21.2821.28
stable..8.7188.718
total..31.4431.44
SZn/a0.41000.7711.157
critical..1.1571.157
less stable1.44911.61413.013
stable0.410010.11510.515
total2.24023.5625.75
TGn/a..0.9570.957
critical..1.5431.543
less stable..8.4158.415
stable..10.21310.213
total..21.0421.04
TIn/a..2.1412.141
critical..2.5372.537
less stable4.72737.8842.58
stable3.63145.2748.87
total8.32087.6495.94
URn/a..0.7700.770
critical0.31000.7711.058
less stable2.3367.71810.015
stable0.31002.3362.634
total3.03111.41414.311
VDn/a..3.8313.831
critical0.41006.1246.424
less stable2.34036.8839.08
stable1.15842.8744.07
total3.83189.4393.23
VSn/a0.7714.5275.225
critical1.4505.5256.922
less stable9.61823.71133.39
stable12.71635.7848.47
total24.41169.3593.73
ZGn/a......
critical..0.9680.968
less stable..2.1372.137
stable..2.6322.632
total..5.695.69
ZHn/a..2.1402.140
critical..4.6274.627
less stable..22.21022.210
stable..21.51021.510
total..50.4250.42
Switzerlandn/a3.53244.1947.69
critical4.62858.1862.67
less stable48.48442.12490.52
stable33.910429.32463.32
total90.46973.611064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #155191/141570

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %±
inside perimetern/a....5.73.94.61.6..3.91.2
critical....5.73.95.71.82.92.85.01.4
less stable30.712.8..48.68.553.13.868.67.853.43.1
stable69.312.8..40.08.336.63.628.57.637.73.0
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a4.00.94.10.86.01.04.90.82.70.94.50.4
critical2.90.77.51.05.11.08.61.03.31.05.90.4
less stable39.22.146.12.052.22.243.91.846.62.945.40.9
stable53.92.242.41.936.82.142.61.847.42.944.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.90.84.10.86.01.04.90.72.40.84.40.4
critical2.80.77.51.05.10.98.10.93.31.05.80.4
less stable39.02.146.12.051.92.145.61.748.92.746.10.9
stable54.32.242.41.937.02.041.51.645.52.743.60.9
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 #155192/141571

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.7712.835..3.532
critical....0.7713.5310.41004.528
less stable1.550..6.12432.1108.52048.28
stable3.333..5.02622.1123.53134.010
total4.727..12.61660.5712.41690.36
outside perimetern/a7.7229.21911.51712.5162.83543.79
critical5.52616.9149.71921.9123.53157.58
less stable74.86104.34100.25111.5549.87440.62
stable102.9495.9570.76108.3550.77428.62
total190.92226.31192.12254.22106.94970.41
totaln/a7.7229.21912.21715.3152.83547.29
critical5.52616.91410.51825.3113.93062.07
less stable76.36104.34106.34143.6458.36488.92
stable106.2495.9575.76130.4454.27462.52
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155193/141572

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a..7.13.45.13.52.92.04.53.1..3.91.2
critical..3.62.57.74.35.62.76.83.82.92.85.01.4
less stable30.812.862.56.553.88.039.45.859.17.468.67.853.63.1
stable69.212.826.85.933.37.652.15.929.56.928.57.637.43.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a4.00.66.11.15.21.36.51.73.71.12.70.94.50.4
critical5.40.75.91.16.51.47.91.99.21.73.31.06.00.5
less stable43.01.451.92.352.92.934.13.343.42.946.62.945.40.9
stable47.61.536.02.235.42.851.53.543.72.947.42.944.10.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a4.00.66.31.15.21.25.51.43.81.02.40.84.50.4
critical5.30.75.71.06.61.47.31.68.81.53.31.05.90.4
less stable42.91.453.02.253.02.735.52.945.42.748.92.746.10.9
stable47.81.535.02.135.22.651.63.041.92.745.52.743.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155194/141573

NFI1

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a..1.4500.7710.7710.771..3.532
critical..0.7711.0581.4501.1580.41004.528
less stable1.45012.6167.2219.6189.1198.52048.68
stable3.2335.4264.52712.7164.6273.53133.910
total4.72820.21313.41524.41115.51412.41690.56
outside perimetern/a16.81410.5185.3264.5273.9302.83543.89
critical22.51210.1186.7235.5259.5193.53157.98
less stable179.5388.4554.6623.71145.0749.87440.92
stable198.5361.3736.6835.7845.3750.77428.12
total417.41170.22103.2369.35103.63106.94970.61
totaln/a16.81411.9176.0245.2254.6272.83547.39
critical22.51210.8187.7216.92210.5183.93062.47
less stable181.03101.0561.8633.3954.1758.36489.52
stable201.7366.7641.1848.4749.9754.27462.02
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #155195/141574
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