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NFI2

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · 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 assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimetern/a52.010.063.44.665.65.177.43.671.44.685.04.271.22.0
0%20.08.08.92.73.42.07.32.215.33.65.52.78.91.2
1-50%12.06.511.63.011.53.40.70.73.11.81.41.45.91.0
over 50%16.07.316.13.519.54.214.63.010.23.18.23.214.11.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a38.61.059.11.659.81.980.01.866.61.889.11.256.80.6
0%37.31.018.31.213.91.46.51.110.41.28.21.022.60.5
1-50%10.30.67.50.84.90.83.20.84.10.80.60.36.80.3
over 50%13.80.715.11.121.31.610.41.418.91.52.20.613.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a38.71.059.51.560.51.879.41.667.21.788.71.158.00.6
0%37.11.017.41.112.71.26.71.011.01.17.91.021.50.5
1-50%10.30.67.90.85.70.92.60.64.00.70.60.36.70.3
over 50%13.80.715.21.121.11.511.31.317.81.42.70.613.80.4
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 #157391/143770

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · 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 assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a2.32812.8129.81317.9912.21211.01266.05
0%0.9451.8320.5581.7312.6260.7508.215
1-50%0.5582.4281.7310.21000.5580.21005.518
over 50%0.7503.3232.9243.4221.7321.14113.111
total4.52020.2915.01023.1817.11012.91192.74
outside perimetern/a164.13106.1367.0464.1478.44109.43589.21
0%158.8332.9715.6105.21812.21210.113234.82
1-50%43.8613.4115.5172.5264.9190.75070.85
over 50%58.8527.1823.988.31422.382.626143.03
total425.61179.52112.0280.23117.72122.921037.81
totaln/a166.43118.9376.8482.0390.63120.42655.21
0%159.7334.7716.1106.91514.81010.812243.02
1-50%44.4615.7107.2152.7255.4180.94576.35
over 50%59.5530.4726.8711.71224.083.722156.13
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157392/143771

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · 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 regionpercentage of salvage logging %± %± %±
Western Juran/a52.010.048.31.748.41.7
0%20.08.028.81.628.61.5
1-50%12.06.59.11.09.21.0
over 50%16.07.313.71.213.81.2
total100.0.100.0.100.0.
Eastern Juran/a..43.13.243.13.2
0%..41.83.241.83.2
1-50%..7.71.77.71.7
over 50%..7.31.77.31.7
total..100.0.100.0.
Western Plateaun/a..43.63.043.63.0
0%..33.42.833.42.8
1-50%..8.71.78.71.7
over 50%..14.22.114.22.1
total..100.0.100.0.
Central Plateaun/a..31.32.331.32.3
0%..48.52.548.52.5
1-50%..7.81.37.81.3
over 50%..12.41.612.41.6
total..100.0.100.0.
Eastern Plateaun/a..26.31.826.31.8
0%..41.12.041.12.0
1-50%..15.31.415.31.4
over 50%..17.31.517.31.5
total..100.0.100.0.
Western Pre-Alpsn/a68.09.364.73.365.03.1
0%16.07.312.12.212.52.1
1-50%12.06.59.32.09.61.9
over 50%4.03.913.92.412.92.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a61.38.852.12.252.62.1
0%6.54.423.31.822.41.8
1-50%12.96.08.51.28.71.2
over 50%19.47.116.21.616.31.6
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a61.111.558.62.558.72.4
0%..16.71.915.91.8
1-50%16.78.85.61.26.01.2
over 50%22.29.819.22.019.31.9
total100.0.100.0.100.0.
Northwestern Alpsn/a62.56.569.52.968.22.7
0%7.13.413.02.111.91.9
1-50%10.74.13.71.25.01.3
over 50%19.75.313.82.214.92.0
total100.0.100.0.100.0.
Central Alpsn/a60.68.560.04.660.14.0
0%..13.03.110.12.5
1-50%18.26.76.12.28.82.3
over 50%21.27.120.93.820.93.4
total100.0.100.0.100.0.
Northeastern Alpsn/a72.37.562.84.164.73.6
0%8.34.67.22.27.42.0
1-50%2.82.72.11.22.31.1
over 50%16.66.227.93.825.63.3
total100.0.100.0.100.0.
Southwestern Alpsn/a77.43.680.01.879.41.6
0%7.32.26.51.16.71.0
1-50%0.70.73.20.82.60.6
over 50%14.63.010.41.411.31.3
total100.0.100.0.100.0.
Southeastern Alpsn/a71.44.666.61.867.21.7
0%15.33.610.41.211.01.1
1-50%3.11.84.10.84.00.7
over 50%10.23.118.91.517.81.4
total100.0.100.0.100.0.
Southern Alpsn/a85.04.289.11.288.71.1
0%5.52.78.21.07.91.0
1-50%1.41.40.60.30.60.3
over 50%8.23.22.20.62.70.6
total100.0.100.0.100.0.
Switzerlandn/a71.12.056.80.658.00.6
0%8.81.222.60.521.40.5
1-50%6.01.06.80.36.70.3
over 50%14.11.513.80.413.80.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157393/143772

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · 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 regionpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
Western Juran/a2.32871.6473.94
0%0.94542.7643.66
1-50%0.55813.51114.111
over 50%0.75020.3921.09
total4.520148.21152.61
Eastern Juran/a..20.5820.58
0%..19.9819.98
1-50%..3.7223.722
over 50%..3.5233.523
total..47.5247.52
Western Plateaun/a..21.7721.77
0%..16.6916.69
1-50%..4.3204.320
over 50%..7.0157.015
total..49.7349.73
Central Plateaun/a..21.6821.68
0%..33.5533.55
1-50%..5.4175.417
over 50%..8.6138.613
total..69.1269.12
Eastern Plateaun/a..29.2729.27
0%..45.6545.65
1-50%..16.91016.910
over 50%..19.2919.29
total..111.02111.02
Western Pre-Alpsn/a3.12425.1628.15
0%0.7504.7195.417
1-50%0.5583.6224.120
over 50%0.21005.4175.617
total4.51938.7443.23
Central Pre-Alpsn/a3.42349.2552.64
0%0.47122.0822.48
1-50%0.7508.0148.714
over 50%1.14115.31016.410
total5.51894.62100.12
Eastern Pre-Alpsn/a1.93040.4542.35
0%..11.51111.511
1-50%0.5583.8214.320
over 50%0.75013.21113.910
total3.12368.9272.02
Northwestern Alpsn/a6.51631.7638.35
0%0.7505.9176.716
1-50%1.1411.7332.825
over 50%2.1306.3178.414
total10.41245.7456.13
Central Alpsn/a3.62112.51016.18
0%..2.7252.725
1-50%1.1401.3372.427
over 50%1.3374.3195.617
total6.01620.8726.85
Northeastern Alpsn/a4.41915.0919.57
0%0.5571.7312.227
1-50%0.21000.5570.750
over 50%1.0406.7157.714
total6.11624.0630.15
Southwestern Alpsn/a17.9964.1482.03
0%1.7315.2186.915
1-50%0.21002.5262.725
over 50%3.4228.31411.712
total23.1880.23103.32
Southeastern Alpsn/a12.21278.4490.63
0%2.62612.21214.810
1-50%0.5584.9195.418
over 50%1.73222.3824.08
total17.110117.72134.82
Southern Alpsn/a11.012109.43120.42
0%0.75010.11310.812
1-50%0.21000.7500.945
over 50%1.1412.6263.722
total12.911122.92135.82
Switzerlandn/a66.25590.51656.71
0%8.215234.42242.62
1-50%5.61870.8576.45
over 50%13.211143.13156.23
total93.241038.811132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157394/143773

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · 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
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha19.18.6..27.55.450.28.15.55.450.86.734.73.3
20-39 m2/ha42.810.833.327.240.65.928.97.361.011.536.56.539.33.4
40-59 m2/ha38.110.666.727.217.44.618.46.327.910.67.33.518.72.7
from 60 m2/ha....14.54.22.62.65.55.45.53.17.41.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha24.51.323.91.128.31.039.32.237.01.944.71.830.30.6
20-39 m2/ha51.11.543.91.336.01.136.32.140.32.039.81.841.40.6
40-59 m2/ha21.21.325.21.124.51.019.41.817.71.512.11.221.60.5
from 60 m2/ha3.20.57.10.711.10.74.91.04.90.93.40.76.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalto 19 m2/ha24.41.323.81.128.31.040.12.136.11.945.11.830.40.6
20-39 m2/ha50.91.543.81.336.21.135.82.140.92.039.61.741.30.6
40-59 m2/ha21.51.325.31.124.31.019.41.718.01.511.81.121.50.5
from 60 m2/ha3.10.57.10.711.30.74.80.94.90.93.50.76.80.3
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 #157395/143774

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · 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
rockfall 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/ha0.750..3.4233.2230.21004.91912.412
20-39 m2/ha1.6330.21005.0191.9301.9303.52214.111
40-59 m2/ha1.4350.4712.1291.2380.9450.7506.716
from 60 m2/ha....1.8320.21000.21000.5582.626
total3.8220.55812.2126.4163.1239.71335.87
outside perimeterto 19 m2/ha46.5661.1592.2433.9639.7658.15331.52
20-39 m2/ha97.03112.33117.4331.4643.3551.85453.12
40-59 m2/ha40.2664.4579.9416.8919.0915.710236.22
from 60 m2/ha6.11718.21036.374.2205.2184.42074.55
total189.91256.01325.8186.33107.22130.121095.31
totalto 19 m2/ha47.2661.1595.5437.1639.9663.14343.92
20-39 m2/ha98.63112.53122.4333.2645.2555.35467.22
40-59 m2/ha41.7664.8582.1418.0919.9916.410242.82
from 60 m2/ha6.11718.21038.174.4195.4185.01977.15
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157396/143775

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees) %± %± %±
AGto 19 m2/ha..30.62.830.62.8
20-39 m2/ha..46.83.046.83.0
40-59 m2/ha..19.32.419.32.4
from 60 m2/ha..3.41.13.41.1
total..100.0.100.0.
AIto 19 m2/ha..18.87.018.87.0
20-39 m2/ha..31.38.231.38.2
40-59 m2/ha..34.48.434.48.4
from 60 m2/ha..15.66.515.66.5
total..100.0.100.0.
ARto 19 m2/ha..15.95.215.95.2
20-39 m2/ha..23.76.023.76.0
40-59 m2/ha..35.16.735.16.7
from 60 m2/ha..25.46.125.46.1
total..100.0.100.0.
BEto 19 m2/ha16.07.321.81.421.71.3
20-39 m2/ha64.09.641.81.642.41.6
40-59 m2/ha16.07.327.71.527.41.5
from 60 m2/ha4.03.98.70.98.50.9
total100.0.100.0.100.0.
BL/BSto 19 m2/ha50.035.523.54.224.04.2
20-39 m2/ha..50.24.949.34.9
40-59 m2/ha50.035.520.74.021.34.0
from 60 m2/ha..5.62.25.52.2
total100.0.100.0.100.0.
FRto 19 m2/ha..19.22.619.22.6
20-39 m2/ha..38.53.238.53.2
40-59 m2/ha..31.43.131.43.1
from 60 m2/ha..10.92.110.92.1
total..100.0.100.0.
GEto 19 m2/ha..18.712.318.712.3
20-39 m2/ha..74.713.174.713.1
40-59 m2/ha..6.66.36.66.3
from 60 m2/ha......
total..100.0.100.0.
GLto 19 m2/ha41.714.346.35.745.65.3
20-39 m2/ha16.710.820.54.620.04.2
40-59 m2/ha25.012.517.94.318.84.1
from 60 m2/ha16.710.815.34.115.53.8
total100.0.100.0.100.0.
GRto 19 m2/ha15.66.436.21.635.51.6
20-39 m2/ha65.68.440.61.641.41.6
40-59 m2/ha15.76.417.71.317.61.2
from 60 m2/ha3.13.15.60.85.50.7
total100.0.100.0.100.0.
JUto 19 m2/ha33.319.323.23.123.63.1
20-39 m2/ha16.715.247.63.746.63.6
40-59 m2/ha50.020.424.33.225.13.1
from 60 m2/ha..4.91.64.71.5
total100.0.100.0.100.0.
LUto 19 m2/ha..19.52.619.52.6
20-39 m2/ha..44.93.244.93.2
40-59 m2/ha..22.02.722.02.7
from 60 m2/ha..13.62.213.62.2
total..100.0.100.0.
NEto 19 m2/ha..21.63.221.53.2
20-39 m2/ha..56.83.956.43.9
40-59 m2/ha100.0.19.13.119.63.1
from 60 m2/ha..2.51.22.51.2
total100.0.100.0.100.0.
NWto 19 m2/ha33.327.524.47.125.16.9
20-39 m2/ha66.727.451.58.252.67.9
40-59 m2/ha..18.76.417.36.0
from 60 m2/ha..5.43.85.03.5
total100.0.100.0.100.0.
OWto 19 m2/ha50.035.533.14.533.44.5
20-39 m2/ha..28.44.327.94.3
40-59 m2/ha50.035.526.64.227.04.2
from 60 m2/ha..11.93.111.73.1
total100.0.100.0.100.0.
SGto 19 m2/ha..27.42.626.72.5
20-39 m2/ha62.517.131.32.732.12.7
40-59 m2/ha12.511.728.02.627.62.5
from 60 m2/ha25.015.313.32.013.62.0
total100.0.100.0.100.0.
SHto 19 m2/ha..26.05.526.05.5
20-39 m2/ha..51.06.151.06.1
40-59 m2/ha..21.45.121.45.1
from 60 m2/ha..1.51.51.51.5
total..100.0.100.0.
SOto 19 m2/ha16.715.225.03.224.73.2
20-39 m2/ha33.319.353.43.652.83.6
40-59 m2/ha50.020.419.42.920.43.0
from 60 m2/ha..2.21.12.11.1
total100.0.100.0.100.0.
SZto 19 m2/ha20.017.926.13.625.93.5
20-39 m2/ha40.022.034.63.934.83.8
40-59 m2/ha20.017.933.33.832.93.7
from 60 m2/ha20.017.95.91.96.31.9
total100.0.100.0.100.0.
TGto 19 m2/ha..28.04.028.04.0
20-39 m2/ha..44.84.544.84.5
40-59 m2/ha..21.63.721.63.7
from 60 m2/ha..5.62.15.62.1
total..100.0.100.0.
TIto 19 m2/ha59.47.646.82.147.72.0
20-39 m2/ha23.96.640.02.138.92.0
40-59 m2/ha9.54.510.51.310.51.2
from 60 m2/ha7.24.02.60.72.90.7
total100.0.100.0.100.0.
URto 19 m2/ha37.512.141.25.740.55.1
20-39 m2/ha18.89.834.85.531.94.9
40-59 m2/ha25.010.917.44.418.74.1
from 60 m2/ha18.89.86.72.98.83.0
total100.0.100.0.100.0.
VDto 19 m2/ha..30.52.030.22.0
20-39 m2/ha100.0.43.92.144.32.1
40-59 m2/ha..19.41.719.21.7
from 60 m2/ha..6.31.06.21.0
total100.0.100.0.100.0.
VSto 19 m2/ha47.77.939.72.040.22.0
20-39 m2/ha29.97.235.52.035.11.9
40-59 m2/ha17.46.019.61.719.41.6
from 60 m2/ha5.03.45.20.95.20.9
total100.0.100.0.100.0.
ZGto 19 m2/ha..20.06.820.06.8
20-39 m2/ha..60.08.260.08.2
40-59 m2/ha..17.16.417.16.4
from 60 m2/ha..2.92.92.92.9
total..100.0.100.0.
ZHto 19 m2/ha..25.32.625.32.6
20-39 m2/ha..44.82.944.82.9
40-59 m2/ha..23.82.523.82.5
from 60 m2/ha..6.01.46.01.4
total..100.0.100.0.
Switzerlandto 19 m2/ha34.83.330.20.630.40.6
20-39 m2/ha39.23.441.40.641.40.6
40-59 m2/ha18.62.721.50.521.50.5
from 60 m2/ha7.41.86.80.36.80.3
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157397/143776

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
AGto 19 m2/ha..15.01015.010
20-39 m2/ha..23.0723.07
40-59 m2/ha..9.5139.513
from 60 m2/ha..1.7331.733
total..49.1249.12
AIto 19 m2/ha..1.0381.038
20-39 m2/ha..1.6271.627
40-59 m2/ha..1.8261.826
from 60 m2/ha..0.8420.842
total..5.275.27
ARto 19 m2/ha..1.3341.334
20-39 m2/ha..1.9261.926
40-59 m2/ha..2.9192.919
from 60 m2/ha..2.1242.124
total..8.268.26
BEto 19 m2/ha0.75035.5736.26
20-39 m2/ha2.92568.0470.84
40-59 m2/ha0.75045.1645.96
from 60 m2/ha0.210014.11114.311
total4.520162.72167.22
BL/BSto 19 m2/ha0.21004.7184.918
20-39 m2/ha..10.11010.110
40-59 m2/ha0.21004.2204.419
from 60 m2/ha..1.1411.141
total0.47020.1420.54
FRto 19 m2/ha..8.1148.114
20-39 m2/ha..16.2916.29
40-59 m2/ha..13.31013.310
from 60 m2/ha..4.6194.619
total..42.2342.23
GEto 19 m2/ha..0.5680.568
20-39 m2/ha..2.0242.024
40-59 m2/ha..0.21000.2100
from 60 m2/ha......
total..2.7182.718
GLto 19 m2/ha0.9446.3157.213
20-39 m2/ha0.3702.8243.122
40-59 m2/ha0.5572.4253.023
from 60 m2/ha0.3702.1282.425
total2.12813.6815.77
GRto 19 m2/ha0.94556.3557.25
20-39 m2/ha3.62263.2466.84
40-59 m2/ha0.94527.5728.47
from 60 m2/ha0.21008.7148.914
total5.517155.72161.22
JUto 19 m2/ha0.4717.6148.013
20-39 m2/ha0.210015.6815.88
40-59 m2/ha0.5578.0138.513
from 60 m2/ha..1.6331.633
total1.14032.9333.93
LUto 19 m2/ha..8.0148.014
20-39 m2/ha..18.4818.48
40-59 m2/ha..9.0139.013
from 60 m2/ha..5.6175.617
total..41.0341.03
NEto 19 m2/ha..6.2156.215
20-39 m2/ha..16.2716.27
40-59 m2/ha0.21005.5165.616
from 60 m2/ha..0.7500.750
total0.210028.5328.73
NWto 19 m2/ha0.21001.8302.028
20-39 m2/ha0.4703.7184.116
40-59 m2/ha..1.4361.436
from 60 m2/ha..0.4700.470
total0.6567.287.87
OWto 19 m2/ha0.21006.2146.414
20-39 m2/ha..5.3165.316
40-59 m2/ha0.21005.0165.216
from 60 m2/ha..2.2262.226
total0.37018.8419.14
SGto 19 m2/ha..14.31014.310
20-39 m2/ha0.94416.4917.39
40-59 m2/ha0.210014.71014.810
from 60 m2/ha0.3717.0157.315
total1.43552.4353.83
SHto 19 m2/ha..3.4223.422
20-39 m2/ha..6.6126.612
40-59 m2/ha..2.8242.824
from 60 m2/ha..0.21000.2100
total..13.0413.04
SOto 19 m2/ha0.21007.8138.013
20-39 m2/ha0.37116.8717.17
40-59 m2/ha0.5576.1166.615
from 60 m2/ha..0.7500.750
total1.04031.4332.43
SZto 19 m2/ha0.21007.1147.314
20-39 m2/ha0.4709.5129.811
40-59 m2/ha0.21009.1129.312
from 60 m2/ha0.21001.6331.831
total0.94427.3428.24
TGto 19 m2/ha..5.9155.915
20-39 m2/ha..9.4119.411
40-59 m2/ha..4.5184.518
from 60 m2/ha..1.2371.237
total..20.9420.94
TIto 19 m2/ha4.42047.6552.15
20-39 m2/ha1.83140.7642.55
40-59 m2/ha0.75010.71211.412
from 60 m2/ha0.5582.7263.223
total7.515101.72109.22
URto 19 m2/ha1.1405.6176.715
20-39 m2/ha0.5574.8185.317
40-59 m2/ha0.7492.4273.123
from 60 m2/ha0.5570.9441.534
total2.92413.7916.67
VDto 19 m2/ha..29.1729.17
20-39 m2/ha0.75041.9542.65
40-59 m2/ha..18.5918.59
from 60 m2/ha..6.0176.017
total0.75095.5296.22
VSto 19 m2/ha3.22338.3641.55
20-39 m2/ha2.02934.3636.36
40-59 m2/ha1.23818.9920.19
from 60 m2/ha0.3715.1185.417
total6.81596.53103.32
ZGto 19 m2/ha..1.2351.235
20-39 m2/ha..3.5153.515
40-59 m2/ha..1.0381.038
from 60 m2/ha..0.21000.2100
total..5.865.86
ZHto 19 m2/ha..12.61112.611
20-39 m2/ha..22.4722.47
40-59 m2/ha..11.91111.911
from 60 m2/ha..3.0243.024
total..49.9249.92
Switzerlandto 19 m2/ha12.512331.52344.02
20-39 m2/ha14.011454.32468.32
40-59 m2/ha6.716236.22242.82
from 60 m2/ha2.62674.2576.85
total35.971096.111131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157398/143777

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %±
inside perimeterto 19 m2/ha19.18.6..30.812.831.04.450.86.734.83.3
20-39 m2/ha42.810.850.035.438.513.539.84.636.56.539.23.4
40-59 m2/ha38.110.650.035.423.111.719.53.77.33.518.72.7
from 60 m2/ha....7.77.49.72.85.53.17.31.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha24.11.325.91.221.11.237.21.145.31.930.30.6
20-39 m2/ha52.31.542.81.438.31.436.71.139.41.841.40.6
40-59 m2/ha20.41.225.11.227.71.319.40.911.91.221.50.5
from 60 m2/ha3.10.56.20.712.91.06.70.63.40.76.80.3
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 #157399/143778

NFI2

forest area: rockfall 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
rockfall 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..0.7506.1174.91912.412
20-39 m2/ha1.6330.21000.9457.8153.52214.011
40-59 m2/ha1.5350.21000.5583.8210.7506.716
from 60 m2/ha....0.21001.9300.5582.626
total3.8220.4712.32819.699.71335.77
outside perimeterto 19 m2/ha47.3659.3544.96122.5357.15331.32
20-39 m2/ha102.7398.2381.54120.8349.75453.02
40-59 m2/ha40.1657.7559.1563.9515.010235.82
from 60 m2/ha6.11714.21127.4822.294.22074.25
total196.31229.51213.01329.41126.121094.31
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 #157400/143779

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees) %± %± %± %± %± %± %±
inside perimeterto 19 m2/ha17.47.923.18.329.37.147.77.910.57.050.86.734.73.3
20-39 m2/ha43.510.357.79.729.37.129.97.257.811.336.56.539.43.4
40-59 m2/ha39.110.215.37.122.06.517.46.026.410.17.33.518.62.7
from 60 m2/ha..3.83.819.56.25.03.45.35.15.53.17.31.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterto 19 m2/ha25.10.924.01.329.51.739.72.035.61.745.31.930.20.6
20-39 m2/ha47.11.039.31.531.41.835.52.041.21.839.41.841.40.6
40-59 m2/ha23.00.925.01.326.71.719.61.717.71.411.91.221.60.5
from 60 m2/ha4.80.411.71.012.31.25.20.95.40.83.40.76.80.3
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 #157401/143780

NFI2

forest area: rockfall 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
rockfall 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/ha0.7501.1412.1293.2230.3714.91912.312
20-39 m2/ha1.8322.7262.1292.0291.9303.52214.011
40-59 m2/ha1.6330.7501.5331.2380.9450.7506.616
from 60 m2/ha..0.21001.4350.3710.21000.5582.626
total4.1214.7197.0156.8153.3239.71335.67
outside perimeterto 19 m2/ha106.7446.8635.4638.3646.8557.15331.22
20-39 m2/ha200.7276.7437.7634.3654.2549.75453.22
40-59 m2/ha98.0448.8532.1718.9923.3815.010236.12
from 60 m2/ha20.5922.8914.8105.1187.2154.22074.55
total425.91195.02120.0296.53131.52126.121094.91
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 #157402/143781

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha15.08.023.71.523.51.4
20-39 m2/ha45.011.152.41.752.31.7
40-59 m2/ha40.011.020.91.421.41.4
from 60 m2/ha..3.00.62.90.6
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha100.0.25.72.826.02.8
20-39 m2/ha..52.03.151.83.1
40-59 m2/ha..18.82.518.72.5
from 60 m2/ha..3.51.23.51.2
total100.0.100.0.100.0.
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..23.42.123.32.1
20-39 m2/ha50.035.442.92.442.92.4
40-59 m2/ha50.035.427.32.227.42.2
from 60 m2/ha..6.41.26.31.2
total100.0.100.0.100.0.
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/ha..20.22.620.02.6
20-39 m2/ha100.0.37.43.137.93.1
40-59 m2/ha..28.22.927.92.9
from 60 m2/ha..14.32.314.22.3
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha42.918.720.51.720.81.7
20-39 m2/ha42.918.742.42.142.52.1
40-59 m2/ha14.313.226.11.925.91.8
from 60 m2/ha..11.01.310.81.3
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha25.021.722.52.122.52.1
20-39 m2/ha..33.12.332.82.3
40-59 m2/ha50.025.029.82.330.02.3
from 60 m2/ha25.021.714.61.714.71.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha17.79.334.02.833.12.7
20-39 m2/ha59.011.934.82.836.12.8
40-59 m2/ha17.49.120.42.420.22.3
from 60 m2/ha5.95.710.81.810.61.8
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha31.610.736.44.235.73.9
20-39 m2/ha26.310.133.44.232.53.9
40-59 m2/ha21.19.423.33.723.03.5
from 60 m2/ha21.19.47.02.28.82.3
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha27.810.641.33.940.03.7
20-39 m2/ha38.911.525.93.527.23.4
40-59 m2/ha16.78.822.13.321.53.1
from 60 m2/ha16.78.810.72.511.32.4
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha47.77.939.72.040.22.0
20-39 m2/ha29.97.235.52.035.11.9
40-59 m2/ha17.46.019.61.719.41.6
from 60 m2/ha5.03.45.20.95.20.9
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha10.57.035.61.735.01.7
20-39 m2/ha57.811.341.21.841.61.8
40-59 m2/ha26.410.117.71.418.01.4
from 60 m2/ha5.35.15.40.85.40.8
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha50.86.745.31.945.71.8
20-39 m2/ha36.56.539.41.839.21.8
40-59 m2/ha7.33.511.91.211.61.2
from 60 m2/ha5.53.13.40.73.50.7
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha34.73.330.30.630.40.6
20-39 m2/ha39.43.441.40.641.30.6
40-59 m2/ha18.62.721.50.521.40.5
from 60 m2/ha7.41.86.80.36.80.3
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157403/143782

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha0.55835.3635.86
20-39 m2/ha1.63378.2479.83
40-59 m2/ha1.43531.2732.67
from 60 m2/ha..4.5204.520
total3.622149.11152.61
Eastern Jurato 19 m2/ha0.210012.21112.411
20-39 m2/ha..24.6624.66
40-59 m2/ha..8.9148.914
from 60 m2/ha..1.7331.733
total0.210047.3247.52
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/ha0.210029.5629.76
40-59 m2/ha0.210018.8818.98
from 60 m2/ha..4.4194.419
total0.37168.8269.12
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/ha..8.6138.613
20-39 m2/ha0.47116.0916.49
40-59 m2/ha..12.11112.111
from 60 m2/ha..6.1166.116
total0.47142.9343.23
Central Pre-Alpsto 19 m2/ha0.55820.3920.88
20-39 m2/ha0.55841.9542.55
40-59 m2/ha0.210025.8725.97
from 60 m2/ha..10.81210.812
total1.23898.82100.12
Eastern Pre-Alpsto 19 m2/ha0.210016.01016.29
20-39 m2/ha..23.6723.67
40-59 m2/ha0.37121.2821.68
from 60 m2/ha0.210010.41210.612
total0.75071.3272.02
Northwestern Alpsto 19 m2/ha0.65818.0918.69
20-39 m2/ha1.93118.4920.38
40-59 m2/ha0.55810.81211.312
from 60 m2/ha0.21005.7175.917
total3.22452.9456.13
Central Alpsto 19 m2/ha1.1408.5139.612
20-39 m2/ha0.9447.8148.713
40-59 m2/ha0.7505.4176.216
from 60 m2/ha0.7501.6332.427
total3.42223.3626.85
Northeastern Alpsto 19 m2/ha0.94411.21112.011
20-39 m2/ha1.2377.0148.213
40-59 m2/ha0.5576.0166.515
from 60 m2/ha0.5572.9233.421
total3.12327.0530.15
Southwestern Alpsto 19 m2/ha3.22338.3641.55
20-39 m2/ha2.02934.3636.36
40-59 m2/ha1.23818.9920.19
from 60 m2/ha0.3715.1185.417
total6.81596.53103.32
Southeastern Alpsto 19 m2/ha0.37146.8547.25
20-39 m2/ha1.93054.2556.15
40-59 m2/ha0.94523.3824.28
from 60 m2/ha0.21007.2157.315
total3.323131.52134.82
Southern Alpsto 19 m2/ha4.91957.1562.04
20-39 m2/ha3.52249.7553.35
40-59 m2/ha0.75015.01015.710
from 60 m2/ha0.5584.2204.819
total9.713126.12135.82
Switzerlandto 19 m2/ha12.412331.72344.12
20-39 m2/ha14.111453.92468.02
40-59 m2/ha6.716236.12242.82
from 60 m2/ha2.62674.5577.15
total35.871096.211132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157404/143783

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....1.41.42.82.7..1.81.81.50.9
critical....17.44.67.94.411.17.411.04.211.32.2
less stable47.710.966.727.252.26.044.68.139.011.552.66.749.53.5
stable52.310.933.327.229.05.544.88.149.911.834.66.437.73.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.30.12.70.41.20.51.50.50.40.21.20.1
critical1.90.44.60.510.50.78.61.210.21.26.80.97.00.3
less stable34.31.542.71.349.21.244.62.249.32.041.91.843.90.6
stable63.61.552.51.337.61.145.62.239.02.050.91.847.90.6
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 #157405/143784

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.21000.2100..0.21000.558
critical....2.1290.5580.3711.1414.021
less stable1.8310.4716.4172.9241.2385.11817.710
stable2.0300.21003.5222.9241.6333.42313.511
total3.8220.55812.2126.4163.1239.71335.87
outside perimetern/a0.4710.7508.9141.0411.6330.55813.112
critical3.62211.71234.377.41511.0128.81476.85
less stable65.24109.33160.2338.5652.8554.55480.42
stable120.73134.43122.4339.3641.8666.24525.01
total189.91256.01325.8186.33107.22130.121095.31
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 #157406/143785

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
rockfall 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 stable..87.55.287.55.2
stable..12.55.912.55.9
total..100.0.100.0.
ARn/a..4.12.94.12.9
critical..7.83.87.83.8
less stable..54.97.054.97.0
stable..33.26.633.26.6
total..100.0.100.0.
BEn/a..0.90.30.90.3
critical4.03.96.30.86.20.8
less stable72.09.044.61.645.41.6
stable24.08.548.21.747.61.6
total100.0.100.0.100.0.
BL/BSn/a......
critical..2.01.41.91.4
less stable50.035.524.54.325.04.3
stable50.035.573.64.473.14.4
total100.0.100.0.100.0.
FRn/a......
critical..7.91.87.91.8
less stable..50.73.350.73.3
stable..41.53.341.53.3
total..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/a..5.12.54.42.2
critical16.710.810.23.411.13.3
less stable75.012.453.85.756.65.2
stable8.38.030.95.327.94.7
total100.0.100.0.100.0.
GRn/a..1.60.41.50.4
critical9.55.210.11.010.11.0
less stable37.58.645.81.745.51.6
stable53.08.842.61.642.91.6
total100.0.100.0.100.0.
JUn/a......
critical..2.21.12.11.0
less stable33.319.343.23.642.93.5
stable66.719.354.63.755.03.6
total100.0.100.0.100.0.
LUn/a..1.30.71.30.7
critical..14.02.314.02.3
less stable..57.63.257.63.2
stable..27.12.927.12.9
total..100.0.100.0.
NEn/a..0.60.60.60.6
critical..1.91.11.81.1
less stable100.0.25.33.425.83.4
stable..72.23.571.73.5
total100.0.100.0.100.0.
NWn/a..5.43.85.03.5
critical33.327.524.17.124.86.9
less stable33.327.529.87.630.17.3
stable33.327.540.78.140.17.8
total100.0.100.0.100.0.
OWn/a..2.81.62.71.6
critical..2.81.62.71.5
less stable100.0.64.24.564.84.4
stable..30.34.429.84.4
total100.0.100.0.100.0.
SGn/a..4.01.13.91.1
critical12.511.77.31.57.51.5
less stable50.017.748.32.948.42.9
stable37.517.140.32.840.32.8
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..3.41.43.31.3
less stable16.715.238.73.638.03.6
stable83.315.257.93.758.73.6
total100.0.100.0.100.0.
SZn/a..3.91.63.81.5
critical20.017.910.52.510.82.5
less stable20.017.939.24.038.63.9
stable60.021.946.44.046.84.0
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/a2.42.40.40.20.50.3
critical11.95.06.51.06.91.0
less stable57.07.644.82.145.62.0
stable28.67.048.42.147.12.0
total100.0.100.0.100.0.
URn/a6.36.12.71.93.31.9
critical31.311.627.95.228.54.7
less stable43.812.442.75.742.95.2
stable18.89.826.65.125.34.6
total100.0.100.0.100.0.
VDn/a..0.60.30.50.3
critical25.021.74.10.84.20.9
less stable..41.32.141.02.1
stable75.021.754.12.154.22.1
total100.0.100.0.100.0.
VSn/a2.72.61.80.61.80.5
critical7.54.29.81.29.61.2
less stable44.87.944.92.144.92.0
stable45.07.943.62.143.62.0
total100.0.100.0.100.0.
ZGn/a......
critical..8.64.88.64.8
less stable..34.38.134.38.1
stable..57.18.357.18.3
total..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/a1.50.91.20.11.20.1
critical11.42.27.00.37.10.3
less stable49.53.543.80.643.90.6
stable37.63.448.00.647.70.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157407/143786

NFI2

forest area: rockfall 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
rockfall 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 stable..4.594.59
stable..0.6480.648
total..5.275.27
ARn/a..0.3710.371
critical..0.6490.649
less stable..4.5144.514
stable..2.7202.720
total..8.268.26
BEn/a..1.4351.435
critical0.210010.21310.313
less stable3.22372.6475.84
stable1.14178.5479.64
total4.520162.72167.22
BL/BSn/a......
critical..0.4700.470
less stable0.21004.9185.118
stable0.210014.8715.07
total0.47020.1420.54
FRn/a......
critical..3.3233.323
less stable..21.4721.47
stable..17.5817.58
total..42.2342.23
GEn/a......
critical......
less stable..0.21000.2100
stable..2.4212.421
total..2.7182.718
GLn/a..0.7490.749
critical0.3701.4341.730
less stable1.6327.3138.911
stable0.21004.2194.419
total2.12813.6815.77
GRn/a..2.4272.427
critical0.55815.71016.310
less stable2.12971.2473.34
stable2.92466.3469.24
total5.517155.72161.22
JUn/a......
critical..0.7500.750
less stable0.47114.2914.69
stable0.75018.0718.77
total1.14032.9333.93
LUn/a..0.5580.558
critical..5.7165.716
less stable..23.6623.66
stable..11.11111.111
total..41.0341.03
NEn/a..0.21000.2100
critical..0.5570.557
less stable0.21007.2147.414
stable..20.6620.66
total0.210028.5328.73
NWn/a..0.4700.470
critical0.21001.7311.929
less stable0.21002.2272.425
stable0.21002.9213.120
total0.6567.287.87
OWn/a..0.5580.558
critical..0.5570.557
less stable0.37012.0812.47
stable..5.7155.715
total0.37018.8419.14
SGn/a..2.1292.129
critical0.21003.8214.020
less stable0.75025.3726.07
stable0.55821.1821.78
total1.43552.4353.83
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 stable0.210012.21012.310
stable0.94418.2719.07
total1.04031.4332.43
SZn/a..1.1401.140
critical0.21002.9243.023
less stable0.210010.71110.911
stable0.55712.71013.29
total0.94427.3428.24
TGn/a..0.21000.2100
critical..0.7490.749
less stable..8.2128.212
stable..11.9911.99
total..20.9420.94
TIn/a0.21000.4710.558
critical0.9456.6167.515
less stable4.32045.5549.85
stable2.12949.2551.45
total7.515101.72109.22
URn/a0.21000.4700.557
critical0.9443.8214.718
less stable1.3375.9167.114
stable0.5573.6214.219
total2.92413.7916.67
VDn/a..0.5580.558
critical0.21003.9214.020
less stable..39.5539.55
stable0.55851.6452.24
total0.75095.5296.22
VSn/a0.21001.7311.930
critical0.5589.4139.913
less stable3.02343.3546.45
stable3.02342.0545.15
total6.81596.53103.32
ZGn/a......
critical..0.5560.556
less stable..2.0242.024
stable..3.3163.316
total..5.865.86
ZHn/a......
critical..1.4351.435
less stable..18.6818.68
stable..29.8529.85
total..49.9249.92
Switzerlandn/a0.55813.01213.511
critical4.12176.8580.95
less stable17.810479.62497.42
stable13.511526.61540.11
total35.971096.111131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #157408/143787

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %±
inside perimetern/a......1.81.31.81.81.50.8
critical....30.812.811.53.011.04.211.32.2
less stable47.710.950.035.446.213.848.74.752.66.749.53.5
stable52.310.950.035.423.111.738.04.634.66.437.83.4
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.20.10.40.21.70.42.30.30.40.21.20.1
critical1.60.44.70.68.30.811.10.76.60.97.00.3
less stable34.91.541.91.450.21.447.01.142.31.843.80.6
stable63.31.553.01.439.81.439.61.150.71.948.00.6
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 #157409/143788

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a......0.4710.21000.558
critical....0.7502.2281.1414.021
less stable1.8320.21001.1419.5135.11817.710
stable2.0300.21000.5587.4153.42313.511
total3.8220.4712.32819.699.71335.77
outside perimetern/a0.4710.9453.5227.7150.55813.012
critical3.12410.91217.71036.678.31476.55
less stable68.6496.13107.03154.7353.35479.72
stable124.33121.6384.74130.5364.04525.11
total196.31229.51213.01329.41126.121094.31
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 #157410/143789

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetern/a....2.42.42.72.6..1.81.81.50.9
critical..11.56.322.06.57.54.210.57.011.04.211.22.2
less stable47.810.457.79.751.27.844.87.936.911.152.66.749.53.5
stable52.210.430.89.124.46.745.07.952.611.534.66.437.83.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.30.11.40.43.70.71.80.61.70.50.40.21.20.1
critical3.30.49.40.910.51.29.81.210.71.16.60.97.00.3
less stable38.71.049.41.549.11.944.92.148.31.842.31.843.90.6
stable57.71.039.81.536.71.843.62.139.21.850.71.947.90.6
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 #157411/143790

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....0.21000.2100..0.21000.558
critical..0.5581.5330.5580.3711.1414.021
less stable2.0302.7263.6223.0231.2385.11817.610
stable2.1291.4351.7313.0231.7313.42313.411
total4.1214.7197.0156.8153.3239.71335.67
outside perimetern/a1.2382.7264.5191.7312.3280.55812.912
critical14.11118.31012.6119.41314.1118.31476.75
less stable165.0396.3358.9443.3563.5453.35480.42
stable245.6277.7444.0542.0551.6564.04524.81
total425.91195.02120.0296.53131.52126.121094.91
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 #157412/143791

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juran/a..0.20.20.20.2
critical..1.70.41.60.4
less stable50.011.235.61.735.91.6
stable50.011.262.51.762.21.7
total100.0.100.0.100.0.
Eastern Juran/a......
critical..1.20.71.20.7
less stable..32.73.032.53.0
stable100.0.66.13.066.33.0
total100.0.100.0.100.0.
Western Plateaun/a......
critical..2.91.02.91.0
less stable..46.93.046.93.0
stable..50.23.050.23.0
total..100.0.100.0.
Central Plateaun/a..0.70.40.70.4
critical..7.31.37.31.3
less stable50.035.445.32.545.42.5
stable50.035.446.62.546.62.5
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.20.30.2
critical..3.90.83.90.8
less stable..37.41.937.41.9
stable..58.42.058.42.0
total..100.0.100.0.
Western Pre-Alpsn/a..0.40.40.40.4
critical50.035.410.12.010.42.0
less stable..50.83.250.43.2
stable50.035.438.73.238.83.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.40.51.40.5
critical28.617.18.61.28.91.2
less stable57.118.750.22.150.32.1
stable14.313.239.72.139.42.1
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.70.82.70.8
critical25.021.76.81.27.01.3
less stable50.025.050.02.550.02.5
stable25.021.740.52.440.32.4
total100.0.100.0.100.0.
Northwestern Alpsn/a..2.10.82.00.8
critical..10.21.89.61.7
less stable64.611.646.73.047.72.9
stable35.411.641.02.940.72.8
total100.0.100.0.100.0.
Central Alpsn/a5.35.14.71.94.71.8
critical26.310.122.53.722.93.5
less stable42.111.343.44.443.34.1
stable26.310.129.54.029.03.7
total100.0.100.0.100.0.
Northeastern Alpsn/a..5.81.95.21.7
critical16.78.810.12.410.82.3
less stable61.111.551.24.052.23.8
stable22.29.832.93.731.83.5
total100.0.100.0.100.0.
Southwestern Alpsn/a2.72.61.80.61.80.5
critical7.54.29.81.29.61.2
less stable44.87.944.92.144.92.0
stable45.07.943.62.143.62.0
total100.0.100.0.100.0.
Southeastern Alpsn/a..1.70.51.70.5
critical10.57.010.71.110.71.1
less stable36.911.148.31.848.11.8
stable52.611.539.21.839.51.8
total100.0.100.0.100.0.
Southern Alpsn/a1.81.80.40.20.50.3
critical11.04.26.60.96.90.9
less stable52.66.742.31.843.01.8
stable34.66.450.71.949.61.8
total100.0.100.0.100.0.
Switzerlandn/a1.50.91.20.11.20.1
critical11.32.27.00.37.10.3
less stable49.53.543.80.644.00.6
stable37.73.448.00.647.70.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 07.11.2014 #157413/143792

NFI2

forest area: rockfall 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
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..0.4710.471
critical..2.5272.527
less stable1.83153.1554.95
stable1.83193.1394.93
total3.622149.11152.61
Eastern Juran/a......
critical..0.6580.658
less stable..15.5915.59
stable0.210031.3531.55
total0.210047.3247.52
Western Plateaun/a......
critical..1.4351.435
less stable..23.3723.37
stable..24.9724.97
total..49.7349.73
Central Plateaun/a..0.5580.558
critical..5.0185.018
less stable0.210031.2631.36
stable0.210032.1632.26
total0.37168.8269.12
Eastern Plateaun/a..0.4710.471
critical..4.3204.320
less stable..41.5541.55
stable..64.8464.84
total..111.02111.02
Western Pre-Alpsn/a..0.21000.2100
critical0.21004.3204.519
less stable..21.8721.87
stable0.210016.6916.89
total0.47142.9343.23
Central Pre-Alpsn/a..1.4351.435
critical0.4718.5148.914
less stable0.75049.6550.35
stable0.210039.3639.56
total1.23898.82100.12
Eastern Pre-Alpsn/a..1.9301.930
critical0.21004.9185.018
less stable0.37135.6536.05
stable0.210028.9629.06
total0.75071.3272.02
Northwestern Alpsn/a..1.1411.141
critical..5.4185.418
less stable2.03024.7726.87
stable1.14121.7822.88
total3.22452.9456.13
Central Alpsn/a0.21001.1401.337
critical0.9445.2186.116
less stable1.43510.11211.611
stable0.9446.9157.814
total3.42223.3626.85
Northeastern Alpsn/a..1.6331.633
critical0.5572.7243.222
less stable1.93013.8915.79
stable0.7508.9139.612
total3.12327.0530.15
Southwestern Alpsn/a0.21001.7311.930
critical0.5589.4139.913
less stable3.02343.3546.45
stable3.02342.0545.15
total6.81596.53103.32
Southeastern Alpsn/a..2.3282.328
critical0.37114.11114.511
less stable1.23863.5464.84
stable1.73151.6553.35
total3.323131.52134.82
Southern Alpsn/a0.21000.5580.750
critical1.1418.3149.313
less stable5.11853.3558.45
stable3.42364.0467.34
total9.713126.12135.82
Switzerlandn/a0.55813.01213.511
critical4.02176.7580.85
less stable17.710480.42498.12
stable13.511526.01539.51
total35.871096.211132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #157414/143793
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