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NFI2

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %±
inside perimeterto 19 m2/ha16.07.3..18.94.627.22.328.85.325.71.9
20-39 m2/ha64.09.6..32.45.438.02.653.45.840.62.1
40-59 m2/ha20.08.0..32.45.425.32.310.93.724.01.9
from 60 m2/ha....16.24.39.41.56.93.09.61.3
total100.0...100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha24.21.325.81.221.41.238.91.247.51.930.80.6
20-39 m2/ha51.91.542.81.438.71.436.61.237.71.841.40.6
40-59 m2/ha20.81.225.21.227.41.318.10.911.61.221.20.5
from 60 m2/ha3.10.56.20.712.61.06.40.63.20.76.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha24.01.325.81.221.21.236.91.145.71.830.40.6
20-39 m2/ha52.21.542.81.438.31.436.81.139.21.841.30.6
40-59 m2/ha20.81.225.21.227.71.319.40.911.61.221.50.5
from 60 m2/ha3.10.56.20.712.81.06.90.63.50.76.80.3
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 #157535/143914

NFI2

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
grid: terrestrial grid NFI2
state 1993/95
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/ha0.750..2.52717.0103.72223.98
20-39 m2/ha2.925..4.22023.786.91637.77
40-59 m2/ha0.945..4.22015.8101.43522.39
from 60 m2/ha....2.1295.9170.9458.914
total4.520..13.11162.3512.91192.94
outside perimeterto 19 m2/ha47.3659.3543.26111.6458.35319.82
20-39 m2/ha101.5398.4378.24104.8446.45429.22
40-59 m2/ha40.7657.9555.4552.0514.311220.23
from 60 m2/ha6.11714.21125.5818.2103.92168.05
total195.61229.81202.21286.72122.921037.21
totalto 19 m2/ha48.0659.3545.76128.6362.04343.72
20-39 m2/ha104.4398.4382.44128.5353.35467.02
40-59 m2/ha41.6657.9559.6567.7515.710242.52
from 60 m2/ha6.11714.21127.6824.184.81976.95
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157536/143915

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha16.07.324.14.024.34.626.43.828.64.628.85.325.81.9
20-39 m2/ha64.09.633.94.533.35.137.24.143.95.053.45.840.62.1
40-59 m2/ha20.08.030.34.325.24.727.03.822.54.210.93.724.01.9
from 60 m2/ha..11.63.017.24.09.52.55.12.26.93.09.61.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha25.10.924.01.430.21.844.22.335.91.847.51.930.80.6
20-39 m2/ha46.91.040.41.631.11.834.52.241.31.937.71.841.40.6
40-59 m2/ha23.20.924.21.426.61.717.21.717.31.511.61.221.20.5
from 60 m2/ha4.80.411.51.012.11.34.00.95.50.93.20.76.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha25.00.924.01.329.51.740.22.035.01.745.71.830.40.6
20-39 m2/ha47.11.039.71.531.31.735.11.941.61.839.21.841.30.6
40-59 m2/ha23.20.924.81.326.51.619.41.618.01.411.61.221.50.5
from 60 m2/ha4.80.411.51.012.71.25.20.95.40.83.50.76.80.3
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 #157537/143916

NFI2

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
grid: terrestrial grid NFI2
state 1993/95
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/ha0.7504.9193.6226.1164.9193.72223.98
20-39 m2/ha2.9256.9165.0188.6147.5156.91637.77
40-59 m2/ha0.9456.1173.8216.2163.8211.43522.39
from 60 m2/ha..2.4282.6262.2280.9450.9458.914
total4.52020.2915.01023.1817.11012.91192.74
outside perimeterto 19 m2/ha106.7443.0633.8735.5642.3658.35319.62
20-39 m2/ha199.6272.5434.8627.7748.6546.45429.52
40-59 m2/ha98.7443.4629.9713.81120.4914.311220.43
from 60 m2/ha20.5920.6913.6113.2236.5163.92168.25
total425.61179.52112.0280.23117.72122.921037.81
totalto 19 m2/ha107.5447.9637.4641.5547.2562.04343.52
20-39 m2/ha202.4279.4439.8636.3656.1553.35467.22
40-59 m2/ha99.6449.5533.6620.1924.2815.710242.72
from 60 m2/ha20.5922.9816.1105.4177.3154.81977.15
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157538/143917

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha16.07.323.71.523.51.4
20-39 m2/ha64.09.651.91.752.31.7
40-59 m2/ha20.08.021.41.421.41.4
from 60 m2/ha..3.00.62.90.6
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha..26.02.826.02.8
20-39 m2/ha..51.83.151.83.1
40-59 m2/ha..18.72.518.72.5
from 60 m2/ha..3.51.23.51.2
total..100.0.100.0.
Western Plateauto 19 m2/ha..25.12.625.12.6
20-39 m2/ha..41.13.041.13.0
40-59 m2/ha..25.82.625.82.6
from 60 m2/ha..8.01.68.01.6
total..100.0.100.0.
Central Plateauto 19 m2/ha..23.32.123.32.1
20-39 m2/ha..42.92.442.92.4
40-59 m2/ha..27.42.227.42.2
from 60 m2/ha..6.31.26.31.2
total..100.0.100.0.
Eastern Plateauto 19 m2/ha..27.81.827.81.8
20-39 m2/ha..43.52.043.52.0
40-59 m2/ha..23.41.723.41.7
from 60 m2/ha..5.30.95.30.9
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha16.07.320.52.820.02.6
20-39 m2/ha28.09.039.13.337.93.1
40-59 m2/ha40.09.826.53.027.92.9
from 60 m2/ha16.07.314.02.414.22.3
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha19.47.120.91.820.81.7
20-39 m2/ha38.78.842.72.142.52.1
40-59 m2/ha32.38.425.61.925.91.8
from 60 m2/ha9.75.310.91.410.81.3
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha22.29.822.52.122.52.1
20-39 m2/ha27.810.633.12.432.82.3
40-59 m2/ha22.29.830.32.330.02.3
from 60 m2/ha27.810.614.11.814.71.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha30.46.133.73.033.12.7
20-39 m2/ha34.06.336.63.136.12.8
40-59 m2/ha24.95.819.12.520.22.3
from 60 m2/ha10.74.110.52.010.61.8
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha18.26.740.84.635.73.9
20-39 m2/ha36.48.431.34.332.53.9
40-59 m2/ha30.38.020.93.823.03.5
from 60 m2/ha15.26.37.02.48.82.3
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha30.57.742.44.240.03.7
20-39 m2/ha33.57.925.63.727.23.4
40-59 m2/ha22.26.921.43.521.53.1
from 60 m2/ha13.95.810.72.611.32.4
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha26.43.844.22.340.22.0
20-39 m2/ha37.24.134.52.235.11.9
40-59 m2/ha27.03.817.21.719.41.6
from 60 m2/ha9.52.54.00.95.20.9
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha28.64.635.91.835.01.7
20-39 m2/ha43.95.041.31.941.61.8
40-59 m2/ha22.54.217.31.518.01.4
from 60 m2/ha5.12.25.50.95.40.8
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha28.85.347.51.945.71.8
20-39 m2/ha53.45.837.71.839.21.8
40-59 m2/ha10.93.711.61.211.61.2
from 60 m2/ha6.93.03.20.73.50.7
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha25.71.930.80.630.40.6
20-39 m2/ha40.62.141.40.641.30.6
40-59 m2/ha24.11.921.20.521.40.5
from 60 m2/ha9.61.36.60.36.80.3
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157539/143918

NFI2

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
grid: terrestrial grid NFI2
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha0.75035.1635.86
20-39 m2/ha2.82576.9479.83
40-59 m2/ha0.94531.7732.67
from 60 m2/ha..4.5204.520
total4.520148.21152.61
Eastern Jurato 19 m2/ha..12.41112.411
20-39 m2/ha..24.6624.66
40-59 m2/ha..8.9148.914
from 60 m2/ha..1.7331.733
total..47.5247.52
Western Plateauto 19 m2/ha..12.51112.511
20-39 m2/ha..20.4820.48
40-59 m2/ha..12.81112.811
from 60 m2/ha..4.0214.021
total..49.7349.73
Central Plateauto 19 m2/ha..16.1916.19
20-39 m2/ha..29.7629.76
40-59 m2/ha..18.9818.98
from 60 m2/ha..4.4194.419
total..69.1269.12
Eastern Plateauto 19 m2/ha..30.8730.87
20-39 m2/ha..48.3548.35
40-59 m2/ha..26.0726.07
from 60 m2/ha..5.9175.917
total..111.02111.02
Western Pre-Alpsto 19 m2/ha0.7507.9148.613
20-39 m2/ha1.33715.1916.49
40-59 m2/ha1.83110.31212.111
from 60 m2/ha0.7505.4176.116
total4.51938.7443.23
Central Pre-Alpsto 19 m2/ha1.14119.7920.88
20-39 m2/ha2.12940.3542.55
40-59 m2/ha1.83124.2825.97
from 60 m2/ha0.55810.31310.812
total5.51894.62100.12
Eastern Pre-Alpsto 19 m2/ha0.75015.51016.29
20-39 m2/ha0.94522.8823.67
40-59 m2/ha0.75020.9821.68
from 60 m2/ha0.9459.71310.612
total3.12368.9272.02
Northwestern Alpsto 19 m2/ha3.22415.41018.69
20-39 m2/ha3.52216.7920.38
40-59 m2/ha2.6268.71411.312
from 60 m2/ha1.1414.8195.917
total10.41245.7456.13
Central Alpsto 19 m2/ha1.1408.5139.612
20-39 m2/ha2.2286.5158.713
40-59 m2/ha1.8314.3196.216
from 60 m2/ha0.9441.4352.427
total6.01620.8726.85
Northeastern Alpsto 19 m2/ha1.93010.21212.011
20-39 m2/ha2.1286.1168.213
40-59 m2/ha1.4355.1176.515
from 60 m2/ha0.9442.6253.421
total6.11624.0630.15
Southwestern Alpsto 19 m2/ha6.11635.5641.55
20-39 m2/ha8.61427.7736.36
40-59 m2/ha6.21613.81120.19
from 60 m2/ha2.2283.2235.417
total23.1880.23103.32
Southeastern Alpsto 19 m2/ha4.91942.3647.25
20-39 m2/ha7.51548.6556.15
40-59 m2/ha3.82120.4924.28
from 60 m2/ha0.9456.5167.315
total17.110117.72134.82
Southern Alpsto 19 m2/ha3.72258.3562.04
20-39 m2/ha6.91646.4553.35
40-59 m2/ha1.43514.31115.710
from 60 m2/ha0.9453.9214.819
total12.911122.92135.82
Switzerlandto 19 m2/ha24.08320.12344.12
20-39 m2/ha37.87430.22468.02
40-59 m2/ha22.49220.33242.82
from 60 m2/ha8.91468.2577.15
total93.241038.811132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157540/143919

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....3.71.32.41.4....2.10.6
critical8.05.4..15.22.47.92.415.33.99.03.312.31.4
less stable32.09.3..56.23.454.34.452.95.443.55.652.22.2
stable60.09.8..24.92.935.44.231.75.047.45.733.42.0
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.30.12.60.41.00.51.60.50.60.31.10.1
critical1.70.44.50.510.20.78.81.49.51.36.90.96.70.3
less stable34.71.542.71.348.41.241.62.448.32.142.51.943.30.6
stable63.41.552.41.338.91.248.62.440.52.150.11.948.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.20.10.30.12.70.41.30.51.40.50.50.31.20.1
critical1.90.44.50.510.80.78.61.210.31.27.10.97.10.3
less stable34.61.442.71.349.31.144.62.149.02.042.61.844.00.6
stable63.41.552.41.337.31.145.52.139.31.949.81.847.60.6
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 #157541/143920

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
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....1.4350.558....1.930
critical0.471..5.8171.7312.3281.23811.412
less stable1.435..21.6911.7117.8146.01748.66
stable2.726..9.6137.6144.7196.51631.17
total4.520..38.4621.5814.81013.81193.04
outside perimetern/a0.4710.7507.7150.7501.6330.75011.712
critical3.22311.71230.676.3169.1138.61469.55
less stable65.64109.63145.0329.7746.2553.65449.62
stable120.03134.63116.4334.6638.7663.14507.41
total189.21256.61299.6171.2395.53126.021038.11
totaln/a0.4710.7509.1141.2381.6330.75013.611
critical3.62211.71236.478.01411.3129.91380.95
less stable67.04109.63166.5341.3554.0559.65498.12
stable122.73134.63126.0342.2543.4569.64538.51
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157542/143921

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability %± %± %±
AGn/a..0.40.40.40.4
critical..3.41.13.41.1
less stable..37.02.937.02.9
stable..59.23.059.23.0
total..100.0.100.0.
AIn/a......
critical......
less stable100.0.86.25.987.55.2
stable..13.86.512.55.9
total100.0.100.0.100.0.
ARn/a..4.22.94.12.9
critical..8.03.87.83.8
less stable100.0.54.07.154.97.0
stable..33.86.733.26.6
total100.0.100.0.100.0.
BEn/a1.41.40.80.30.90.3
critical7.03.06.10.86.20.8
less stable59.25.844.21.745.41.6
stable32.45.648.81.747.61.6
total100.0.100.0.100.0.
BL/BSn/a......
critical..1.91.41.91.4
less stable..25.04.325.04.3
stable..73.14.473.14.4
total..100.0.100.0.
FRn/a......
critical25.015.37.21.77.91.8
less stable50.017.750.73.450.73.3
stable25.015.342.13.341.53.3
total100.0.100.0.100.0.
GEn/a......
critical......
less stable..9.39.29.39.2
stable..90.79.290.79.2
total..100.0.100.0.
GLn/a8.35.73.02.14.42.2
critical4.24.113.64.211.13.3
less stable62.49.954.56.256.65.2
stable25.28.928.95.627.94.7
total100.0.100.0.100.0.
GRn/a..1.70.51.50.4
critical12.43.09.81.010.11.0
less stable52.44.544.41.745.51.6
stable35.24.344.11.742.91.6
total100.0.100.0.100.0.
JUn/a......
critical20.017.91.60.92.11.0
less stable40.021.943.03.642.93.5
stable40.021.955.43.755.03.6
total100.0.100.0.100.0.
LUn/a..1.30.71.30.7
critical100.0.12.92.214.02.3
less stable..58.43.257.63.2
stable..27.52.927.12.9
total100.0.100.0.100.0.
NEn/a..0.70.60.60.6
critical..1.91.11.81.1
less stable33.319.325.53.525.83.4
stable66.719.371.93.671.73.5
total100.0.100.0.100.0.
NWn/a16.715.43.02.95.03.5
critical33.319.423.37.324.86.9
less stable50.020.626.67.630.17.3
stable..47.28.640.17.8
total100.0.100.0.100.0.
OWn/a..3.01.72.71.6
critical..3.01.72.71.5
less stable79.812.763.34.764.84.4
stable20.212.830.74.629.84.4
total100.0.100.0.100.0.
SGn/a8.35.63.51.13.91.1
critical16.77.66.71.57.51.5
less stable50.010.248.23.048.42.9
stable25.08.841.52.940.32.8
total100.0.100.0.100.0.
SHn/a......
critical..1.51.51.51.5
less stable..32.25.832.25.8
stable..66.25.966.25.9
total..100.0.100.0.
SOn/a......
critical..3.31.33.31.3
less stable..38.23.638.03.6
stable100.0.58.53.658.73.6
total100.0.100.0.100.0.
SZn/a10.09.53.41.53.81.5
critical20.012.710.12.510.82.5
less stable40.015.538.54.038.63.9
stable30.014.548.04.146.84.0
total100.0.100.0.100.0.
TGn/a..0.80.80.80.8
critical..3.21.63.21.6
less stable..39.24.439.24.4
stable..56.84.456.84.4
total..100.0.100.0.
TIn/a..0.50.30.50.3
critical8.23.96.71.16.91.0
less stable40.87.046.02.145.62.0
stable51.07.146.72.147.12.0
total100.0.100.0.100.0.
URn/a4.34.33.02.13.31.9
critical47.810.422.05.028.54.7
less stable43.510.442.76.042.95.2
stable4.34.332.35.725.34.6
total100.0.100.0.100.0.
VDn/a..0.60.30.50.3
critical10.75.83.90.84.20.9
less stable46.49.440.72.241.02.1
stable42.99.354.82.254.22.1
total100.0.100.0.100.0.
VSn/a2.21.31.70.61.80.5
critical8.82.49.91.49.61.2
less stable54.74.342.12.344.92.0
stable34.34.146.32.343.62.0
total100.0.100.0.100.0.
ZGn/a......
critical..8.84.98.64.8
less stable..35.38.234.38.1
stable100.0.55.98.557.18.3
total100.0.100.0.100.0.
ZHn/a......
critical..2.81.02.81.0
less stable..37.42.937.42.9
stable..59.82.959.82.9
total..100.0.100.0.
Switzerlandn/a2.10.61.10.11.20.1
critical12.41.46.70.37.10.3
less stable52.12.243.20.643.90.6
stable33.42.049.00.647.70.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157543/143922

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %
AGn/a..0.21000.2100
critical..1.7331.733
less stable..18.2818.28
stable..29.1629.16
total..49.1249.12
AIn/a......
critical......
less stable0.5564.0114.59
stable..0.6480.648
total0.5564.795.27
ARn/a..0.3710.371
critical..0.6490.649
less stable0.21004.4144.514
stable..2.7202.720
total0.21008.168.26
BEn/a0.21001.2381.435
critical0.9459.51310.313
less stable7.51568.3475.84
stable4.12175.5479.64
total12.712154.52167.22
BL/BSn/a......
critical..0.4700.470
less stable..5.1185.118
stable..15.0715.07
total..20.5420.54
FRn/a......
critical0.4712.9243.323
less stable0.75020.7721.47
stable0.47117.1817.58
total1.53540.7342.23
GEn/a......
critical......
less stable..0.21000.2100
stable..2.4212.421
total..2.7182.718
GLn/a0.3700.3700.749
critical0.21001.6321.730
less stable2.6246.3158.911
stable1.1403.3224.419
total4.21911.5915.77
GRn/a..2.4272.427
critical2.62613.71116.310
less stable11.11262.2473.34
stable7.41561.8469.24
total21.19140.12161.22
JUn/a......
critical0.21000.5570.750
less stable0.47114.2914.69
stable0.47118.3718.77
total0.94433.1333.93
LUn/a..0.5580.558
critical0.5585.2175.716
less stable..23.6623.66
stable..11.11111.111
total0.55840.5341.03
NEn/a..0.21000.2100
critical..0.5570.557
less stable0.4707.0147.414
stable0.75019.9620.66
total1.14027.6328.73
NWn/a0.21000.21000.470
critical0.4701.5331.929
less stable0.6561.8302.425
stable..3.1203.120
total1.2386.7107.87
OWn/a..0.5580.558
critical..0.5570.557
less stable1.43411.0912.47
stable0.3715.3165.715
total1.73117.4519.14
SGn/a0.3711.8312.129
critical0.7503.3224.020
less stable2.12823.9726.07
stable1.04120.6821.78
total4.22049.6353.83
SHn/a......
critical..0.21000.2100
less stable..4.2194.219
stable..8.6108.610
total..13.0413.04
SOn/a......
critical..1.1411.141
less stable..12.31012.310
stable0.210018.9719.07
total0.210032.3332.43
SZn/a0.21000.9441.140
critical0.4702.7253.023
less stable0.75010.21110.911
stable0.55712.71013.29
total1.83126.5428.24
TGn/a..0.21000.2100
critical..0.7490.749
less stable..8.2128.212
stable..11.9911.99
total..20.9420.94
TIn/a..0.5580.558
critical0.7506.8167.515
less stable3.62246.2549.85
stable4.52046.9551.45
total8.714100.42109.22
URn/a0.21000.4700.557
critical2.0292.7254.718
less stable1.8315.3177.114
stable0.21004.0204.219
total4.21912.4916.67
VDn/a..0.5580.558
critical0.5583.5224.020
less stable2.32737.2639.55
stable2.12950.0552.24
total4.91891.3296.22
VSn/a0.5581.4351.930
critical2.0297.9149.913
less stable12.61133.7646.45
stable7.91437.2645.15
total23.1880.23103.32
ZGn/a......
critical..0.5560.556
less stable..2.0242.024
stable0.21003.2173.316
total0.21005.775.86
ZHn/a......
critical..1.4351.435
less stable..18.6818.68
stable..29.8529.85
total..49.9249.92
Switzerlandn/a2.03011.61213.511
critical11.51269.5580.95
less stable48.46449.02497.42
stable31.07509.11540.11
total92.841039.211131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157544/143923

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %±
inside perimetern/a....2.71.92.50.8..2.10.6
critical8.05.4..12.23.813.31.88.33.212.21.4
less stable32.09.3..59.55.754.22.642.45.852.22.2
stable60.09.8..25.75.130.02.449.35.933.52.0
total100.0...100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.40.21.60.42.30.40.60.31.10.1
critical1.40.44.70.68.30.810.70.86.70.96.70.3
less stable35.31.541.91.449.61.545.51.243.11.943.30.6
stable63.21.553.01.440.51.541.61.249.61.948.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.20.10.40.21.60.42.30.30.50.31.20.1
critical1.50.44.70.68.50.811.10.76.90.97.10.3
less stable35.21.441.91.450.21.447.11.143.01.844.00.6
stable63.11.553.01.439.61.439.51.149.61.847.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157545/143924

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
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....0.4711.633..1.930
critical0.471..1.6338.3141.14111.312
less stable1.535..7.81533.875.51848.56
stable2.726..3.42318.796.41631.17
total4.520..13.11162.3512.91192.94
outside perimetern/a0.4710.9453.2236.5160.75011.612
critical2.72610.91216.81030.678.31469.25
less stable68.9496.33100.33130.5352.95448.92
stable123.63121.8381.94119.2361.04507.41
total195.61229.81202.21286.72122.921037.21
totaln/a0.4710.9453.5228.0150.75013.511
critical3.12410.91218.4938.969.31380.65
less stable70.4496.33108.13164.2358.45497.42
stable126.33121.8385.34137.9367.34538.61
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157546/143925

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a..1.81.36.92.72.21.3....2.10.6
critical8.05.412.53.120.64.38.82.413.33.48.33.212.21.4
less stable32.09.358.04.753.05.354.74.354.15.042.45.852.22.2
stable60.09.827.74.219.54.334.34.132.64.749.35.933.52.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.30.11.30.43.20.71.70.61.90.50.60.31.10.1
critical3.20.49.10.99.81.29.91.410.41.26.70.96.70.3
less stable38.91.048.61.648.72.042.12.347.21.943.11.943.30.6
stable57.61.041.01.638.21.946.32.340.51.949.61.948.90.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.30.11.40.33.70.71.80.51.70.50.50.31.20.1
critical3.30.49.40.911.11.29.61.210.71.16.90.97.10.3
less stable38.81.049.61.549.21.844.92.048.11.843.01.844.10.6
stable57.61.039.61.536.01.843.62.039.51.849.61.847.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157547/143926

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
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..0.4711.0410.558....1.930
critical0.4712.5273.1232.0292.3281.14111.312
less stable1.43511.8127.91412.6119.2135.51848.46
stable2.7265.6182.9247.9145.6176.41631.07
total4.52020.2915.01023.1817.11012.91192.74
outside perimetern/a1.2382.3283.6221.4352.3280.75011.612
critical13.71116.31011.0127.91412.2128.31469.45
less stable165.6387.3454.6533.7655.5552.95449.62
stable245.0273.5442.8537.2647.7561.04507.21
total425.61179.52112.0280.23117.72122.921037.81
totaln/a1.2382.7264.7191.9302.3280.75013.511
critical14.11118.8914.1119.91314.5119.31380.75
less stable167.0399.0362.5446.4564.8458.45498.12
stable247.7279.1445.7545.1553.3567.34538.31
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157548/143927

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....2.21.1......0.60.3
critical1.91.42.62.612.12.46.42.216.34.14.01.67.61.0
less stable39.84.847.48.152.73.752.44.543.85.549.94.148.71.9
stable58.34.950.08.133.03.541.14.440.05.546.14.043.11.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.30.12.70.41.70.61.60.50.60.31.30.1
critical1.80.44.60.610.60.79.21.49.41.27.81.17.10.3
less stable34.11.542.61.348.91.242.32.449.72.140.91.943.50.7
stable63.91.552.51.337.71.246.82.439.32.150.72.048.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.20.10.30.12.70.41.30.51.40.50.50.31.20.1
critical1.90.44.50.510.80.78.61.210.31.27.10.97.10.3
less stable34.61.442.71.349.31.144.62.149.02.042.61.844.00.6
stable63.41.552.41.337.31.145.52.139.31.949.81.847.60.6
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 #157549/143928

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.750......0.750
critical0.4710.21003.9211.4352.3281.1419.114
less stable7.4153.22317.01011.0126.11713.41158.15
stable10.8133.42310.6138.6145.61712.41251.46
total18.596.71632.2721.0814.01126.98119.24
outside perimetern/a0.4710.7508.4141.2381.6330.75012.912
critical3.22311.51232.676.6169.1138.81471.75
less stable59.65106.53149.6330.3747.9546.25440.12
stable111.93131.23115.4333.6637.8657.25487.12
total175.12249.91305.8171.7396.43112.931011.91
totaln/a0.4710.7509.1141.2381.6330.75013.611
critical3.62211.71236.478.01411.3129.91380.95
less stable67.04109.63166.5341.3554.0559.65498.12
stable122.73134.63126.0342.2543.4569.64538.51
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157550/143929

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability %± %± %±
AGn/a..0.40.40.40.4
critical..3.51.23.41.1
less stable55.616.636.33.037.02.9
stable44.416.659.73.159.23.0
total100.0.100.0.100.0.
AIn/a......
critical......
less stable100.0.86.75.787.55.2
stable..13.36.312.55.9
total100.0.100.0.100.0.
ARn/a..5.43.74.12.9
critical..10.24.97.83.8
less stable66.713.651.38.154.97.0
stable33.313.733.17.533.26.6
total100.0.100.0.100.0.
BEn/a..0.90.30.90.3
critical6.82.76.10.86.20.8
less stable54.55.344.41.745.41.6
stable38.65.248.51.747.61.6
total100.0.100.0.100.0.
BL/BSn/a......
critical..2.11.51.91.4
less stable12.511.726.04.525.04.3
stable87.511.671.94.673.14.4
total100.0.100.0.100.0.
FRn/a......
critical..8.11.87.91.8
less stable66.719.350.33.450.73.3
stable33.319.341.73.341.53.3
total100.0.100.0.100.0.
GEn/a......
critical......
less stable..9.39.29.39.2
stable..90.79.290.79.2
total..100.0.100.0.
GLn/a7.16.93.92.24.42.2
critical14.39.410.53.511.13.3
less stable57.113.256.55.756.65.2
stable21.411.029.05.227.94.7
total100.0.100.0.100.0.
GRn/a..1.70.51.50.4
critical11.72.99.91.010.11.0
less stable42.54.545.91.745.51.6
stable45.84.642.51.742.91.6
total100.0.100.0.100.0.
JUn/a......
critical..2.31.12.11.0
less stable35.311.643.73.742.93.5
stable64.711.654.03.855.03.6
total100.0.100.0.100.0.
LUn/a..1.30.71.30.7
critical..14.32.314.02.3
less stable60.021.957.63.357.63.2
stable40.021.926.82.927.12.9
total100.0.100.0.100.0.
NEn/a..0.70.70.60.6
critical..2.11.21.81.1
less stable35.311.624.73.625.83.4
stable64.711.672.63.771.73.5
total100.0.100.0.100.0.
NWn/a..5.74.05.03.5
critical40.022.122.67.124.86.9
less stable60.022.025.87.530.17.3
stable..45.98.440.17.8
total100.0.100.0.100.0.
OWn/a..2.91.72.71.6
critical12.511.71.91.42.71.5
less stable87.511.663.14.664.84.4
stable..32.14.629.84.4
total100.0.100.0.100.0.
SGn/a7.85.33.61.13.91.1
critical7.75.27.41.67.51.5
less stable34.69.349.63.048.42.9
stable50.09.839.42.940.32.8
total100.0.100.0.100.0.
SHn/a......
critical..1.61.61.51.5
less stable100.0.30.15.832.25.8
stable..68.45.966.25.9
total100.0.100.0.100.0.
SOn/a......
critical..3.51.43.31.3
less stable18.211.739.33.738.03.6
stable81.811.657.33.758.73.6
total100.0.100.0.100.0.
SZn/a..4.11.63.81.5
critical8.38.011.02.610.82.5
less stable33.313.639.04.038.63.9
stable58.314.245.94.146.84.0
total100.0.100.0.100.0.
TGn/a..0.80.80.80.8
critical..3.31.63.21.6
less stable66.727.338.54.439.24.4
stable33.327.357.44.556.84.4
total100.0.100.0.100.0.
TIn/a..0.60.40.50.3
critical4.11.87.51.26.91.0
less stable53.24.543.72.245.62.0
stable42.74.548.12.347.12.0
total100.0.100.0.100.0.
URn/a..4.12.33.31.9
critical38.911.526.05.128.54.7
less stable50.011.841.25.842.95.2
stable11.17.428.85.325.34.6
total100.0.100.0.100.0.
VDn/a..0.60.30.50.3
critical6.14.24.10.94.20.9
less stable42.48.640.92.241.02.1
stable51.58.754.42.254.22.1
total100.0.100.0.100.0.
VSn/a0.70.72.10.71.80.5
critical7.32.210.31.49.61.2
less stable52.64.342.72.344.92.0
stable39.44.244.92.343.62.0
total100.0.100.0.100.0.
ZGn/a......
critical..8.84.98.64.8
less stable..35.38.234.38.1
stable100.0.55.98.557.18.3
total100.0.100.0.100.0.
ZHn/a......
critical..2.91.02.81.0
less stable..37.82.937.42.9
stable100.0.59.43.059.82.9
total100.0.100.0.100.0.
Switzerlandn/a0.60.31.30.11.20.1
critical7.71.07.10.37.10.3
less stable48.71.943.40.643.90.6
stable43.01.948.30.747.70.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157551/143930

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %
AGn/a..0.21000.2100
critical..1.7331.733
less stable0.94417.3918.28
stable0.75028.4629.16
total1.73347.5249.12
AIn/a......
critical......
less stable0.3704.2114.59
stable..0.6480.648
total0.3704.885.27
ARn/a..0.3710.371
critical..0.6490.649
less stable1.3333.2194.514
stable0.6492.1242.720
total1.9266.3108.26
BEn/a..1.4351.435
critical1.1419.31410.313
less stable8.61467.3475.84
stable6.11773.5479.64
total15.710151.52167.22
BL/BSn/a......
critical..0.4700.470
less stable0.21004.9185.118
stable1.43713.6815.07
total1.63418.9520.54
FRn/a......
critical..3.3233.323
less stable0.75020.7721.47
stable0.47117.1817.58
total1.14041.1342.23
GEn/a......
critical......
less stable..0.21000.2100
stable..2.4212.421
total..2.7182.718
GLn/a0.21000.5570.749
critical0.3701.4341.730
less stable1.4347.5138.911
stable0.5573.9204.419
total2.42513.3815.77
GRn/a..2.4272.427
critical2.42713.81116.310
less stable8.81464.5473.34
stable9.51359.7569.24
total20.89140.42161.22
JUn/a......
critical..0.7500.750
less stable1.14013.5914.69
stable2.02916.7818.77
total3.02330.9333.93
LUn/a..0.5580.558
critical..5.7165.716
less stable0.55823.1623.66
stable0.37110.81111.111
total0.94440.1341.03
NEn/a..0.21000.2100
critical..0.5570.557
less stable1.1406.3157.414
stable1.92918.7620.66
total3.02325.7428.73
NWn/a..0.4700.470
critical0.4701.5331.929
less stable0.6561.8302.425
stable..3.1203.120
total1.0436.897.87
OWn/a..0.5580.558
critical0.21000.3700.557
less stable1.23711.2812.47
stable..5.7155.715
total1.43417.7519.14
SGn/a0.4711.8312.129
critical0.3713.7214.020
less stable1.63324.5726.07
stable2.32719.4821.78
total4.51949.3353.83
SHn/a......
critical..0.21000.2100
less stable0.4703.8204.219
stable..8.6108.610
total0.47012.6513.04
SOn/a......
critical..1.1411.141
less stable0.37112.01012.310
stable1.63317.5719.07
total1.92930.5332.43
SZn/a..1.1401.140
critical0.21002.9243.023
less stable0.75010.21110.911
stable1.33712.01013.29
total2.12826.1428.24
TGn/a..0.21000.2100
critical..0.7490.749
less stable0.3707.9128.212
stable0.210011.7911.99
total0.55720.4420.94
TIn/a..0.5580.558
critical0.9456.6167.515
less stable11.61238.2649.85
stable9.31342.1651.45
total21.8887.43109.22
URn/a..0.5570.557
critical1.3373.5224.718
less stable1.6325.5167.114
stable0.4703.8214.219
total3.32213.3916.67
VDn/a..0.5580.558
critical0.4713.7214.020
less stable2.52637.0639.55
stable3.02449.2552.24
total5.81790.4296.22
VSn/a0.21001.7321.930
critical1.7318.3149.913
less stable12.11134.2646.45
stable9.11336.0645.15
total23.1880.23103.32
ZGn/a......
critical..0.5560.556
less stable..2.0242.024
stable0.21003.2173.316
total0.21005.775.86
ZHn/a......
critical..1.4351.435
less stable..18.6818.68
stable0.55829.3529.85
total0.55849.3249.92
Switzerlandn/a0.75012.81213.511
critical9.21471.8580.95
less stable57.95439.52497.42
stable51.26488.92540.11
total118.941013.011131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157552/143931

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %±
inside perimetern/a......1.30.6..0.60.3
critical1.01.06.14.25.12.512.21.84.01.67.61.0
less stable44.35.027.37.860.85.548.92.849.64.148.71.9
stable54.65.066.78.234.25.337.62.746.44.143.11.9
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.40.21.80.42.50.40.60.31.30.1
critical1.60.44.70.68.80.810.90.87.61.17.10.3
less stable34.31.542.31.449.51.546.71.241.42.043.50.7
stable63.91.552.61.440.01.539.91.250.42.048.20.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.20.10.40.21.60.42.30.30.50.31.20.1
critical1.50.44.70.68.50.811.10.76.90.97.10.3
less stable35.21.441.91.450.21.447.11.143.01.844.00.6
stable63.11.553.01.439.61.439.51.149.61.847.70.6
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157553/143932

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a......0.750..0.750
critical0.21000.4710.7506.8161.1419.114
less stable7.8151.6338.51427.0813.21158.15
stable9.6133.9214.81920.8912.41251.46
total17.6105.81714.01155.3526.68119.34
outside perimetern/a0.4710.9453.5227.3150.75012.812
critical2.92510.51317.71032.178.31471.55
less stable62.6594.7399.63137.2345.25439.32
stable116.73117.9380.54117.1355.05487.12
total182.51224.01201.31293.82109.131010.71
totaln/a0.4710.9453.5228.0150.75013.511
critical3.12410.91218.4938.969.31380.65
less stable70.4496.33108.13164.2358.45497.42
stable126.33121.8385.34137.9367.34538.61
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157554/143933

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....3.62.00.70.7....0.60.3
critical2.31.38.23.015.33.97.32.214.33.74.01.67.61.0
less stable40.04.360.05.347.05.452.64.345.15.249.64.148.71.9
stable57.74.331.85.134.15.139.44.240.65.246.44.143.11.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.30.11.50.43.70.72.10.71.90.50.60.31.30.1
critical3.30.49.50.910.61.210.31.410.31.27.61.17.10.3
less stable38.81.048.71.649.52.042.72.348.41.941.42.043.50.7
stable57.61.040.31.536.21.944.92.339.41.950.42.048.10.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.30.11.40.33.70.71.80.51.70.50.50.31.20.1
critical3.30.49.40.911.11.29.61.210.71.16.90.97.10.3
less stable38.81.049.61.549.21.844.92.048.11.843.01.844.10.6
stable57.61.039.61.536.01.843.62.039.51.849.61.847.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157555/143934

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
landslide/mudflow SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.5580.2100....0.750
critical0.5581.3382.2281.7312.3281.1419.014
less stable9.3149.2146.91512.1117.11513.21157.85
stable13.4114.9195.0189.1136.41612.41251.16
total23.2915.41114.61023.1815.91026.68118.74
outside perimetern/a1.2382.7264.1201.7322.3280.75012.812
critical13.51117.51011.9128.31412.2128.31471.75
less stable157.7389.8455.7534.2657.6545.25440.22
stable234.3274.3440.7636.0646.9555.05487.12
total406.91184.32112.4280.23118.92109.131011.81
totaln/a1.2382.7264.7191.9302.3280.75013.511
critical14.11118.8914.1119.91314.5119.31380.75
less stable167.0399.0362.5446.4564.8458.45498.12
stable247.7279.1445.7545.1553.3567.34538.31
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157556/143935

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juran/a..0.30.20.20.2
critical1.31.21.70.51.60.4
less stable43.75.535.11.735.91.6
stable55.05.662.91.762.21.7
total100.0.100.0.100.0.
Eastern Juran/a......
critical..1.30.81.20.7
less stable47.112.131.43.132.53.0
stable52.912.167.33.166.33.0
total100.0.100.0.100.0.
Western Plateaun/a......
critical..3.01.02.91.0
less stable20.017.947.43.046.93.0
stable80.017.949.63.050.23.0
total100.0.100.0.100.0.
Central Plateaun/a..0.80.40.70.4
critical11.17.47.11.37.31.3
less stable27.810.646.22.545.42.5
stable61.111.546.02.546.62.5
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.20.30.2
critical..3.90.83.90.8
less stable30.014.537.52.037.41.9
stable70.014.558.22.058.42.0
total100.0.100.0.100.0.
Western Pre-Alpsn/a..0.40.40.40.4
critical..11.22.110.42.0
less stable43.812.450.93.350.43.2
stable56.312.437.53.238.83.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.50.51.40.5
critical10.75.88.81.28.91.2
less stable78.67.748.82.250.32.1
stable10.75.840.92.139.42.1
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.90.92.70.8
critical2.92.87.41.37.01.3
less stable54.38.449.62.650.02.5
stable42.98.440.12.540.32.4
total100.0.100.0.100.0.
Northwestern Alpsn/a..2.30.92.00.8
critical9.84.79.61.89.61.7
less stable53.77.846.83.147.72.9
stable36.57.541.33.140.72.8
total100.0.100.0.100.0.
Central Alpsn/a..5.82.14.71.8
critical29.68.821.53.722.93.5
less stable40.79.543.84.543.34.1
stable29.68.828.94.129.03.7
total100.0.100.0.100.0.
Northeastern Alpsn/a13.37.23.91.65.21.7
critical17.37.99.82.410.82.3
less stable43.310.353.64.052.23.8
stable26.09.132.73.831.83.5
total100.0.100.0.100.0.
Southwestern Alpsn/a0.70.72.10.71.80.5
critical7.32.210.31.49.61.2
less stable52.64.342.72.344.92.0
stable39.44.244.92.343.62.0
total100.0.100.0.100.0.
Southeastern Alpsn/a..1.90.51.70.5
critical14.33.710.31.210.71.1
less stable45.15.248.41.948.11.8
stable40.65.239.41.939.51.8
total100.0.100.0.100.0.
Southern Alpsn/a..0.60.30.50.3
critical4.01.67.61.16.90.9
less stable49.64.141.42.043.01.8
stable46.44.150.42.049.61.8
total100.0.100.0.100.0.
Switzerlandn/a0.60.31.30.11.20.1
critical7.61.07.10.37.10.3
less stable48.71.943.50.744.00.6
stable43.11.948.20.747.70.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157557/143936

NFI2

forest area: landslide/mudflow SilvaProtect, modelled and assigned · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
landslide/mudflow SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..0.4710.471
critical0.21002.3282.527
less stable6.21748.6554.95
stable7.81587.1394.93
total14.211138.42152.61
Eastern Juran/a......
critical..0.6580.658
less stable1.63513.91015.59
stable1.73329.7531.55
total3.32344.2347.52
Western Plateaun/a......
critical..1.4351.435
less stable0.210023.1723.37
stable0.75024.2724.97
total0.94448.8349.73
Central Plateaun/a..0.5580.558
critical0.3714.7185.018
less stable0.84530.5631.36
stable1.83030.4632.26
total3.02366.1269.12
Eastern Plateaun/a..0.4710.471
critical..4.3204.320
less stable0.55841.0541.55
stable1.23863.6464.84
total1.831109.22111.02
Western Pre-Alpsn/a..0.21000.2100
critical..4.5194.519
less stable1.33720.5721.87
stable1.63315.1916.89
total2.92440.4343.23
Central Pre-Alpsn/a..1.4351.435
critical0.5588.4148.914
less stable3.92146.4550.35
stable0.55838.9639.56
total5.01895.12100.12
Eastern Pre-Alpsn/a..1.9301.930
critical0.21004.9185.018
less stable3.32232.7636.05
stable2.62526.4729.06
total6.11665.9372.02
Northwestern Alpsn/a..1.1411.141
critical0.7504.7195.418
less stable4.12122.7826.87
stable2.82520.0822.88
total7.61548.5456.13
Central Alpsn/a..1.3371.337
critical1.4354.7196.116
less stable2.0299.61211.611
stable1.4356.3167.814
total4.91821.9626.85
Northeastern Alpsn/a0.5581.0411.633
critical0.7502.6253.222
less stable1.73114.0915.79
stable1.0408.6139.612
total3.92026.2630.15
Southwestern Alpsn/a0.21001.7321.930
critical1.7318.3149.913
less stable12.11134.2646.45
stable9.11336.0645.15
total23.1880.23103.32
Southeastern Alpsn/a..2.3282.328
critical2.32812.21214.511
less stable7.11557.6564.84
stable6.41646.9553.35
total15.910118.92134.82
Southern Alpsn/a..0.7500.750
critical1.1418.3149.313
less stable13.21145.2558.45
stable12.41255.0567.34
total26.68109.13135.82
Switzerlandn/a0.75012.81213.511
critical9.11471.7580.85
less stable58.15440.12498.12
stable51.36488.22539.51
total119.241012.811132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157558/143937
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