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NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a2.2300.0.0.0.2.230
critical2.8260.0.0.0.2.826
less stable21.570.0.0.0.21.57
stable21.080.0.0.0.21.08
total47.520.0.0.0.47.52
AIn/a0.21000.0.0.4720.658
critical0.21000.0.0.0.0.2100
less stable1.0410.4721.5332.920
stable0.9420.21000.4721.531
total2.3250.6572.2245.19
ARn/a0.21000.0.0.0.0.2100
critical0.0.0.0.0.0.0.0.
less stable2.0290.0.0.7512.723
stable3.1220.21002.0255.313
total5.3130.21002.7228.16
BEn/a5.0201.0453.4249.414
critical6.4170.6584.62111.713
less stable39.768.01532.0779.74
stable35.173.62327.1865.94
total86.3413.31267.14166.71
BL/BSn/a1.5380.0.0.4701.832
critical0.6580.0.0.21000.850
less stable5.8170.0.1.2407.015
stable8.0130.0.2.13110.111
total15.960.0.3.92219.73
FRn/a1.8340.21001.0453.026
critical0.9500.0.1.1412.031
less stable9.7130.21005.91715.89
stable14.0100.7495.01919.78
total26.361.04013.11040.53
GEn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable2.0320.0.0.0.2.032
stable1.2500.0.0.0.1.250
total3.1130.0.0.0.3.113
GLn/a0.6580.4710.4711.438
critical0.4710.21000.9441.534
less stable2.0302.3272.7257.013
stable2.2290.9441.2404.319
total5.1173.8205.31714.27
GRn/a2.6280.6583.2256.417
critical3.4241.2416.51711.113
less stable25.8813.31235.3774.44
stable26.486.21726.4859.05
total58.2521.3971.44150.92
JUn/a0.6580.0.0.8491.437
critical0.21000.0.0.21000.470
less stable9.0130.0.2.52711.511
stable12.5110.9437.21420.77
total22.460.94310.71134.03
LUn/a1.2410.0.0.0.1.241
critical1.3370.21000.4712.031
less stable20.180.4704.02124.56
stable10.6120.21002.42813.310
total33.340.8506.81641.03
NEn/a0.6600.0.0.4711.046
critical0.21000.0.0.0.0.2100
less stable5.5170.21000.8436.515
stable17.870.9501.93120.56
total24.151.0443.02328.23
NWn/a0.0.0.0.0.0.0.0.
critical0.31000.31000.0.0.571
less stable1.9330.31001.6373.819
stable1.3420.6581.2293.221
total3.5211.2442.8247.58
OWn/a1.3380.0.0.4711.733
critical0.9460.0.0.21001.142
less stable4.4191.5355.01710.99
stable2.6260.11002.2304.918
total9.3121.7337.81318.74
SGn/a1.9330.21001.4383.524
critical1.6350.7572.6284.920
less stable10.8131.73513.81026.47
stable7.5161.7357.91517.110
total21.884.42125.8752.03
SHn/a0.9490.0.0.0.0.949
critical0.4710.0.0.0.0.471
less stable4.6180.0.0.21004.717
stable6.1140.0.0.21006.313
total11.940.0.0.46912.33
SOn/a1.1440.0.0.21001.440
critical1.0450.0.0.21001.241
less stable18.170.21001.63519.97
stable8.6130.0.0.8519.513
total28.930.21002.92631.92
SZn/a1.8320.21000.4712.528
critical1.8330.0.0.0.1.833
less stable4.8191.3375.81711.910
stable6.0170.21004.71910.911
total14.591.73210.91127.14
TGn/a0.5600.0.0.21000.751
critical0.8450.0.0.0.0.845
less stable8.6120.0.0.6519.211
stable7.5130.0.1.5339.011
total17.350.0.2.42619.73
TIn/a1.4380.0.2.7274.122
critical1.4380.21001.8333.424
less stable7.7164.32134.9746.95
stable8.3153.52339.3651.15
total18.8108.01578.73105.52
URn/a0.4720.0.0.0.0.472
critical0.21000.4690.4710.944
less stable3.1231.9303.9208.911
stable1.6351.1400.8503.522
total5.2173.5215.01713.76
VDn/a2.9260.21000.4713.523
critical5.5190.21001.2416.916
less stable26.082.6276.71735.26
stable35.762.2307.31545.25
total70.035.11915.61090.82
VSn/a2.8270.8502.8276.417
critical2.1311.6353.9227.616
less stable9.4149.31419.4938.16
stable12.91211.41227.3751.55
total27.1823.1853.45103.62
ZGn/a0.21000.0.0.11000.472
critical0.11000.0.0.4720.558
less stable1.8280.21000.7462.622
stable0.7500.0.1.3332.024
total2.9190.21002.5205.57
ZHn/a1.7350.0.0.21001.933
critical3.0240.0.0.21003.324
less stable24.270.0.0.85025.07
stable19.680.0.0.47020.08
total48.520.0.1.63550.22
Switzerlandn/a33.583.62418.91055.96
critical35.675.51924.9966.05
less stable269.7248.06181.53499.22
stable271.0234.87170.63476.42
total609.7191.94395.921097.51
© WSL, Swiss National Forest Inventory, 19.06.2020 #853332/319663
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a2.0310.0.0.0.2.031
critical2.8260.0.0.0.2.826
less stable21.570.0.0.0.21.57
stable20.480.0.0.0.20.48
total46.720.0.0.0.46.72
AIn/a0.21000.0.0.4720.658
critical0.21000.0.0.0.0.2100
less stable1.0410.4721.5332.920
stable0.9420.21000.4721.531
total2.3250.6572.2245.19
ARn/a0.21000.0.0.0.0.2100
critical0.0.0.0.0.0.0.0.
less stable2.0290.0.0.7512.723
stable3.1220.21002.0255.313
total5.3130.21002.7228.16
BEn/a4.8200.8503.2258.815
critical6.4170.6584.02211.113
less stable38.767.81531.0777.54
stable33.573.42426.7863.75
total83.5412.71264.94161.11
BL/BSn/a1.3410.0.0.4701.635
critical0.6580.0.0.21000.850
less stable5.8170.0.1.2407.015
stable8.0130.0.2.13110.111
total15.760.0.3.92219.64
FRn/a1.4380.21000.8502.429
critical0.9500.0.1.1412.031
less stable9.7130.21005.91715.89
stable14.0100.7494.81919.58
total25.951.04012.81039.73
GEn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable2.0320.0.0.0.2.032
stable1.2500.0.0.0.1.250
total3.1130.0.0.0.3.113
GLn/a0.6580.4710.21001.241
critical0.4710.21000.9441.534
less stable2.0302.3272.7257.013
stable2.0310.9441.2404.120
total4.9183.8205.11713.87
GRn/a2.0320.4712.6285.020
critical3.2251.2416.51710.913
less stable24.2812.91234.9772.04
stable24.886.21725.6856.65
total54.2520.7969.64144.52
JUn/a0.6580.0.0.8491.437
critical0.21000.0.0.21000.470
less stable9.0130.0.2.52711.511
stable11.5110.9437.01519.57
total21.360.94310.51132.83
LUn/a1.0450.0.0.0.1.045
critical1.3370.21000.4712.031
less stable19.580.21004.02123.76
stable10.0120.21002.42812.710
total31.940.6586.81639.43
NEn/a0.6600.0.0.4711.046
critical0.21000.0.0.0.0.2100
less stable5.5170.21000.8436.515
stable17.170.9501.73319.66
total23.451.0442.82427.33
NWn/a0.0.0.0.0.0.0.0.
critical0.31000.31000.0.0.571
less stable1.9330.31001.3423.521
stable1.3420.6581.2293.221
total3.5211.2442.6267.29
OWn/a1.1420.0.0.4711.536
critical0.9460.0.0.21001.142
less stable4.4191.5354.61810.59
stable2.6260.11002.2304.918
total9.1121.7337.41318.14
SGn/a0.8500.21001.2412.230
critical1.4380.7572.4294.521
less stable10.8131.73513.11125.67
stable7.2161.7357.61516.510
total20.194.42124.3748.84
SHn/a0.9490.0.0.0.0.949
critical0.4710.0.0.0.0.471
less stable4.6180.0.0.21004.717
stable6.1140.0.0.21006.313
total11.940.0.0.46912.33
SOn/a1.1440.0.0.21001.440
critical1.0450.0.0.21001.241
less stable17.780.21001.63519.57
stable8.6130.0.0.8519.513
total28.530.21002.92631.62
SZn/a1.0440.21000.4711.634
critical1.6350.0.0.0.1.635
less stable4.8190.9445.61711.410
stable6.0170.21004.71910.911
total13.5101.43710.71125.54
TGn/a0.5600.0.0.21000.751
critical0.8450.0.0.0.0.845
less stable8.6120.0.0.6519.211
stable7.3130.0.1.5338.911
total17.250.0.2.42619.63
TIn/a0.8500.0.1.9312.727
critical1.2410.21001.8333.225
less stable6.9174.32133.3744.56
stable7.3163.52338.5649.45
total16.3108.01575.6399.92
URn/a0.4720.0.0.0.0.472
critical0.21000.4690.21000.849
less stable2.7251.9303.7218.311
stable1.6351.1400.8503.522
total4.8183.5214.61812.96
VDn/a2.3290.21000.4712.925
critical5.3190.21001.2416.717
less stable25.482.6276.71734.76
stable34.462.0316.91643.45
total67.535.01915.21087.72
VSn/a1.8330.6582.6285.020
critical1.9331.6353.9227.416
less stable9.2149.31419.0937.56
stable11.71311.41226.1849.15
total24.5822.9851.6599.02
ZGn/a0.21000.0.0.11000.472
critical0.11000.0.0.4720.558
less stable1.8280.21000.5562.523
stable0.7500.0.1.3332.024
total2.9190.21002.3225.48
ZHn/a1.5370.0.0.21001.735
critical3.0240.0.0.21003.324
less stable23.470.0.0.85024.27
stable19.180.0.0.47019.68
total47.120.0.1.63548.82
Switzerlandn/a27.293.02616.51146.66
critical34.385.51923.9963.85
less stable263.4246.96176.23486.42
stable260.3234.47166.33461.02
total585.2189.84382.821057.81
© WSL, Swiss National Forest Inventory, 19.06.2020 #853333/319664
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a2.1210.0.0.0.2.121
critical2.6190.0.0.0.2.619
less stable24.050.0.0.0.24.05
stable19.360.0.0.0.19.36
total47.910.0.0.0.47.91
AIn/a0.11000.0.0.2720.358
critical0.2670.0.0.11000.357
less stable1.1270.2571.3242.714
stable0.7300.2690.6381.520
total2.2170.4432.3174.97
ARn/a0.3570.0.0.2710.545
critical0.0.0.0.0.11000.1100
less stable1.5240.0.0.7362.218
stable3.1150.2721.8215.010
total4.9100.2722.8167.94
BEn/a4.5150.8353.4178.710
critical5.5131.3284.21511.09
less stable40.847.51134.0582.33
stable36.354.31522.7663.33
total87.0313.9864.43165.41
BL/BSn/a0.9330.0.0.3571.228
critical0.4500.0.0.11000.544
less stable6.7100.0.1.0317.79
stable8.990.0.2.12111.17
total16.940.0.3.51620.42
FRn/a1.6250.2710.7382.520
critical1.2300.4501.1302.619
less stable8.5100.4508.11017.06
stable12.970.8354.61418.36
total24.241.82314.5740.42
GEn/a0.11000.0.0.0.0.1100
critical0.0.0.0.0.0.0.0.
less stable1.6220.0.0.0.1.622
stable1.6210.0.0.0.1.621
total3.460.0.0.0.3.46
GLn/a1.0320.5450.4501.922
critical0.5440.2710.8351.525
less stable2.6191.8222.3206.710
stable2.1211.0301.7234.813
total6.2113.5155.21215.05
GRn/a2.7190.7382.8196.213
critical4.4151.8236.41212.69
less stable26.1613.0837.7576.83
stable25.967.01225.2658.14
total59.1422.6672.03153.71
JUn/a0.7380.0.0.6411.327
critical0.2710.0.0.11000.358
less stable9.590.0.2.71812.27
stable13.170.5446.71120.35
total23.440.54410.2834.12
LUn/a1.8230.0.0.11001.922
critical1.2270.2710.4501.722
less stable19.450.3583.31623.05
stable11.780.11002.71814.57
total34.130.6416.51141.22
NEn/a0.8340.0.0.2711.031
critical0.11000.0.0.11000.271
less stable5.7120.4500.6376.711
stable17.950.5452.02120.44
total24.530.9332.91728.42
NWn/a0.4490.0.0.3560.835
critical0.2690.2710.11000.544
less stable1.6240.6401.1293.314
stable1.2280.5441.6223.315
total3.5141.4263.1158.05
OWn/a1.0320.0.0.2711.229
critical1.0320.2720.5451.724
less stable3.9151.5264.71310.08
stable3.3160.11002.6195.911
total9.181.7238.0918.83
SGn/a1.4280.2711.7243.317
critical1.6250.6412.4204.614
less stable9.891.72514.6726.15
stable7.1111.6258.11016.87
total19.964.11526.8550.82
SHn/a0.7370.0.0.0.0.737
critical0.4490.0.0.0.0.449
less stable4.9120.0.0.11005.011
stable5.6100.0.0.5446.19
total11.630.0.0.64012.22
SOn/a0.6410.0.0.11000.837
critical1.3270.0.0.2701.525
less stable17.050.2701.82319.05
stable9.090.0.1.03110.18
total28.030.2703.11731.42
SZn/a1.8240.11000.8352.719
critical1.5250.2710.3582.022
less stable4.6141.1296.61112.37
stable4.9130.3574.6149.89
total12.971.72412.2726.83
TGn/a0.6380.0.0.11000.735
critical0.5400.0.0.0.0.540
less stable8.580.0.0.8339.38
stable7.390.0.1.5238.88
total17.030.0.2.41819.42
TIn/a1.3280.2712.5204.016
critical0.9330.4502.2213.517
less stable7.5114.81436.9449.24
stable9.3105.01436.3450.64
total19.1710.4977.92107.42
URn/a0.6410.11000.2701.033
critical0.4500.6400.3581.327
less stable3.0182.4203.8159.28
stable1.3270.7380.8352.918
total5.4123.9155.11214.45
VDn/a2.9190.11000.7383.716
critical4.4150.2711.1305.713
less stable25.262.6198.11135.84
stable40.441.3287.11148.83
total72.824.21517.0794.11
VSn/a3.5171.3282.6207.411
critical3.0181.6263.1187.611
less stable9.1109.71016.8735.65
stable14.2812.7824.9651.83
total29.8525.3547.34102.42
ZGn/a0.2710.0.0.11000.358
critical0.2710.0.0.3570.543
less stable2.2180.11001.0303.313
stable0.7370.0.0.9291.621
total3.3120.11002.3165.74
ZHn/a1.9230.0.0.11002.022
critical2.0220.0.0.11002.122
less stable24.050.0.0.54524.45
stable20.950.0.0.27121.15
total48.810.0.0.93349.71
Switzerlandn/a33.854.21518.5756.54
critical33.758.01123.9665.64
less stable268.6248.44188.52505.61
stable278.9236.85160.32476.01
total615.0197.43391.211103.60
© WSL, Swiss National Forest Inventory, 19.06.2020 #853334/319665
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a0.21000.0.0.0.0.2100
critical1.7330.0.0.0.1.733
less stable17.780.0.0.0.17.78
stable28.150.0.0.0.28.15
total47.620.0.0.0.47.62
AIn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable2.1240.5571.8234.411
stable0.21000.0.0.5570.748
total2.3230.5572.3215.09
ARn/a0.4740.0.0.0.0.474
critical0.6510.0.0.0.0.651
less stable2.5240.11001.8254.415
stable1.5320.0.1.2352.722
total5.0120.11003.0188.16
BEn/a0.9450.21000.4711.535
critical5.3180.9454.12110.313
less stable36.767.51531.6775.84
stable45.264.12130.6779.94
total88.2312.61166.64167.41
BL/BSn/a0.0.0.0.0.0.0.0.
critical0.4730.0.0.0.0.473
less stable4.1200.0.1.0445.118
stable11.790.0.3.12414.87
total16.260.0.4.12020.23
FRn/a0.0.0.0.0.0.0.0.
critical1.7310.3701.0413.123
less stable13.1100.6497.21421.07
stable12.6110.4714.71917.78
total27.451.33513.01041.73
GEn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable0.31000.0.0.0.0.3100
stable2.5180.0.0.0.2.518
total2.8150.0.0.0.2.815
GLn/a0.11000.3710.21000.649
critical0.7500.21000.8451.731
less stable2.7242.7243.4218.811
stable2.5260.9400.9444.419
total6.0154.1185.41615.56
GRn/a0.7500.0.1.8312.527
critical5.8172.6268.01516.510
less stable29.1711.01233.7673.84
stable28.177.41534.2669.74
total63.7421.0977.74162.52
JUn/a0.0.0.0.0.0.0.0.
critical0.3700.11000.21000.750
less stable9.2120.4714.81714.49
stable12.0100.3686.01618.37
total21.560.84311.01033.32
LUn/a0.6570.0.0.0.0.657
critical4.4190.5580.9455.916
less stable20.370.0.3.42223.76
stable9.4120.0.2.03011.311
total34.640.5586.31641.42
NEn/a0.21000.0.0.0.0.2100
critical0.5580.0.0.0.0.558
less stable5.7150.3711.0407.113
stable17.570.7501.92820.16
total24.041.0402.92227.93
NWn/a0.21000.21000.0.0.568
critical0.7490.4720.8491.829
less stable0.7560.6591.1392.326
stable2.7240.0.0.8513.520
total4.3171.2402.6248.17
OWn/a0.4710.0.0.11000.558
critical0.3730.0.0.21000.559
less stable5.3161.3356.01412.68
stable3.9200.3711.6335.815
total10.0111.6317.91219.43
SGn/a0.7500.4711.2402.328
critical1.9310.8491.6334.320
less stable10.3122.12813.91026.36
stable10.0121.24010.41221.68
total22.984.52027.1654.63
SHn/a0.0.0.0.0.0.0.0.
critical0.21000.0.0.0.0.2100
less stable3.5200.0.0.5564.018
stable8.290.0.0.0.8.29
total11.830.0.0.55612.42
SOn/a0.0.0.0.0.0.0.0.
critical1.1400.0.0.0.1.140
less stable11.1110.0.1.04112.210
stable17.270.21001.93119.26
total29.430.21002.92432.52
SZn/a0.9450.21000.0.1.140
critical1.8320.4721.1413.223
less stable5.4170.7504.71810.911
stable6.5150.4576.01612.910
total14.591.73111.81028.04
TGn/a0.21000.0.0.0.0.2100
critical0.5620.0.0.11000.653
less stable6.4130.0.1.1387.512
stable10.290.0.1.13911.38
total17.340.0.2.32519.73
TIn/a0.0.0.0.0.5580.558
critical1.4350.7505.5187.615
less stable8.0153.62238.9650.55
stable11.6124.32035.1651.05
total21.098.51480.13109.62
URn/a0.21000.21000.21000.557
critical1.7301.8280.8444.317
less stable2.0281.7292.9236.613
stable2.9230.21000.9444.019
total6.8133.8184.81615.45
VDn/a0.21000.0.0.4710.558
critical2.3270.5581.2384.020
less stable29.372.3277.01538.65
stable41.052.0298.01451.14
total72.834.81816.6994.22
VSn/a0.6580.5580.9452.030
critical3.1232.1285.01810.213
less stable11.31213.01123.6847.95
stable14.0118.11424.3846.45
total29.0723.7853.84106.52
ZGn/a0.0.0.0.0.0.0.0.
critical0.11000.0.0.3710.457
less stable1.3320.0.0.7502.024
stable1.7280.21001.4283.315
total3.1170.21002.4205.76
ZHn/a0.0.0.0.0.0.0.0.
critical1.4350.0.0.0.1.435
less stable17.680.0.1.04018.68
stable28.850.0.0.55829.45
total47.920.0.1.63349.41
Switzerlandn/a6.5172.0305.71814.211
critical37.9711.31231.7780.95
less stable255.7248.26192.23496.11
stable329.9230.77177.23537.71
total630.0192.24406.821128.91
© WSL, Swiss National Forest Inventory, 19.06.2020 #853335/319666
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a0.21000.0.0.0.0.2100
critical1.8330.0.0.0.1.833
less stable17.290.0.0.0.17.29
stable27.560.0.0.0.27.56
total46.720.0.0.0.46.72
AIn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable2.1270.6571.6284.312
stable0.21000.0.0.6570.848
total2.3250.6572.2245.19
ARn/a0.4730.0.0.0.0.473
critical0.7500.0.0.0.0.750
less stable2.6260.21001.3334.018
stable1.6340.0.1.4353.022
total5.3130.21002.7228.16
BEn/a1.0450.21000.4711.635
critical5.2191.0453.4249.614
less stable35.077.91529.7872.54
stable42.363.62331.4777.44
total83.5412.71264.94161.11
BL/BSn/a0.0.0.0.0.0.0.0.
critical0.5720.0.0.0.0.572
less stable3.3240.0.0.9504.221
stable11.990.0.3.02514.97
total15.760.0.3.92219.64
FRn/a0.0.0.0.0.0.0.0.
critical1.7330.21001.1413.024
less stable12.7110.7486.91520.38
stable11.5120.21004.72016.49
total25.951.04012.81039.73
GEn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable0.41000.0.0.0.0.4100
stable2.7190.0.0.0.2.719
total3.1130.0.0.0.3.113
GLn/a0.0.0.4710.0.0.471
critical0.8500.21000.9451.931
less stable1.9302.4273.3227.612
stable2.2300.9440.9493.921
total4.9183.8205.11713.87
GRn/a0.4710.0.2.0312.429
critical3.9222.6286.91713.412
less stable24.5810.71330.4765.74
stable25.387.41630.3763.05
total54.2520.7969.64144.52
JUn/a0.0.0.0.0.0.0.0.
critical0.4700.21000.21000.849
less stable8.7130.4714.61913.79
stable12.3110.3675.71718.37
total21.360.94310.51132.83
LUn/a0.6570.0.0.0.0.657
critical3.9210.6581.0455.618
less stable19.180.0.3.82222.97
stable8.3140.0.2.03110.312
total31.940.6586.81639.43
NEn/a0.31000.0.0.0.0.3100
critical0.6580.0.0.0.0.658
less stable6.1160.21001.2417.414
stable16.480.9501.73018.97
total23.451.0442.82427.33
NWn/a0.0.0.31000.0.0.3100
critical0.6580.4720.4721.536
less stable0.8560.4721.2392.527
stable2.1310.0.0.9503.024
total3.5211.2442.6267.29
OWn/a0.4710.0.0.11000.559
critical0.4740.0.0.0.0.474
less stable5.0181.4355.51611.98
stable3.3230.21001.7335.317
total9.1121.7337.41318.14
SGn/a0.8500.21000.6561.734
critical1.7350.7571.4383.823
less stable9.3142.13113.71125.17
stable8.3151.3408.61418.39
total20.194.42124.3748.84
SHn/a0.0.0.0.0.0.0.0.
critical0.21000.0.0.0.0.2100
less stable3.0240.0.0.4693.422
stable8.790.0.0.0.8.79
total11.940.0.0.46912.33
SOn/a0.0.0.0.0.0.0.0.
critical1.0440.0.0.0.1.044
less stable10.0120.0.1.24111.111
stable17.570.21001.73519.47
total28.530.21002.92631.62
SZn/a1.0450.21000.0.1.240
critical1.3400.4711.2412.926
less stable5.0190.6574.3209.912
stable6.1170.21005.11811.411
total13.5101.43710.71125.54
TGn/a0.21000.0.0.0.0.2100
critical0.5600.0.0.11000.652
less stable6.7130.0.1.1417.712
stable9.8100.0.1.23811.09
total17.250.0.2.42619.63
TIn/a0.0.0.0.0.6580.658
critical1.2410.6585.7197.516
less stable6.4173.62336.7646.65
stable8.7153.82232.6745.25
total16.3108.01575.6399.92
URn/a0.0.0.21000.21000.472
critical1.5341.5330.8493.820
less stable1.3361.5333.0235.815
stable2.1300.21000.6582.924
total4.8183.5214.61812.96
VDn/a0.21000.0.0.4710.658
critical2.4290.6581.0444.022
less stable27.372.5286.31736.16
stable37.561.9317.51646.95
total67.535.01915.21087.72
VSn/a0.6580.6580.6581.933
critical3.0261.9314.7209.614
less stable9.21412.21224.3845.65
stable11.7128.21522.0941.96
total24.5822.9851.6599.02
ZGn/a0.0.0.0.0.0.0.0.
critical0.11000.0.0.11000.367
less stable1.3340.0.0.6591.827
stable1.5330.21001.6283.216
total2.9190.21002.3225.48
ZHn/a0.0.0.0.0.0.0.0.
critical1.4380.0.0.0.1.438
less stable17.790.0.1.24119.08
stable28.060.0.0.47128.46
total47.120.0.1.63548.82
Switzerlandn/a6.2182.0325.12013.312
critical34.7710.91329.2874.85
less stable236.6347.46182.93466.92
stable307.7229.58165.63502.82
total585.2189.84382.821057.81
© WSL, Swiss National Forest Inventory, 19.06.2020 #853336/319667
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a0.21000.0.0.0.0.2100
critical1.8330.0.0.0.1.833
less stable17.490.0.0.0.17.49
stable28.760.0.0.0.28.76
total48.120.0.0.0.48.12
AIn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable2.1270.6571.6284.312
stable0.21000.0.0.6570.848
total2.3250.6572.2245.19
ARn/a0.4730.0.0.0.0.473
critical0.7500.0.0.0.0.750
less stable2.6260.21001.3334.018
stable1.6340.0.1.4353.022
total5.3130.21002.7228.16
BEn/a1.0450.21000.4711.635
critical5.3191.0453.6239.914
less stable36.677.91531.5776.04
stable44.763.82331.8780.34
total87.7412.91267.34167.91
BL/BSn/a0.0.0.0.0.0.0.0.
critical0.5720.0.0.0.0.572
less stable3.7230.0.1.1444.820
stable11.990.0.3.02514.97
total16.160.0.4.12120.23
FRn/a0.0.0.0.0.0.0.0.
critical1.7330.21001.1413.024
less stable13.1110.7487.11520.97
stable12.3110.21005.31917.89
total27.151.04013.51041.73
GEn/a0.0.0.0.0.0.0.0.
critical0.0.0.0.0.0.0.0.
less stable0.41000.0.0.0.0.4100
stable3.1130.0.0.0.3.113
total3.520.0.0.0.3.52
GLn/a0.0.0.4710.0.0.471
critical0.8500.21000.9451.931
less stable2.7252.4273.4218.512
stable2.2301.1400.9494.120
total5.7174.0205.21714.96
GRn/a0.6580.0.2.0312.628
critical5.5192.6287.71615.811
less stable28.6811.31332.8772.74
stable29.487.81534.7771.84
total64.1521.7977.24162.92
JUn/a0.0.0.0.0.0.0.0.
critical0.4700.21000.21000.849
less stable8.9130.4714.61913.99
stable12.9100.3675.91719.17
total22.160.94310.71133.73
LUn/a0.6570.0.0.0.0.657
critical4.1210.6581.0455.817
less stable19.780.0.3.82223.57
stable9.1130.0.2.23011.312
total33.540.6587.01641.22
NEn/a0.31000.0.0.0.0.3100
critical0.6580.0.0.0.0.658
less stable6.1160.21001.2417.414
stable17.270.9501.92920.06
total24.251.0443.02328.33
NWn/a0.0.0.31000.0.0.3100
critical0.6580.4720.4721.536
less stable0.8560.4721.2392.527
stable2.9250.0.0.9503.720
total4.3181.2442.6268.08
OWn/a0.4710.0.0.11000.559
critical0.4740.0.0.0.0.474
less stable5.4171.4355.71612.58
stable3.7220.21001.7335.716
total9.9111.7337.61319.14
SGn/a0.8500.21000.9481.932
critical1.9330.7571.8334.421
less stable10.4132.13114.81027.27
stable10.0131.3409.71321.08
total23.184.42127.1754.53
SHn/a0.0.0.0.0.0.0.0.
critical0.21000.0.0.0.0.2100
less stable3.0240.0.0.4693.422
stable8.790.0.0.0.8.79
total11.940.0.0.46912.33
SOn/a0.0.0.0.0.0.0.0.
critical1.2400.0.0.0.1.240
less stable10.3120.0.1.24111.511
stable17.770.21001.73519.67
total29.330.21002.92632.32
SZn/a1.0450.21000.0.1.240
critical1.5370.4711.2413.125
less stable5.0190.6574.91910.611
stable6.7160.5565.31812.610
total14.391.73211.51127.54
TGn/a0.21000.0.0.0.0.2100
critical0.5600.0.0.11000.652
less stable6.7130.0.1.1417.712
stable10.1100.0.1.23811.38
total17.550.0.2.42619.93
TIn/a0.0.0.0.0.6580.658
critical1.6350.6586.1188.215
less stable7.9163.62339.4650.95
stable11.2134.42034.7750.35
total20.798.61480.83110.12
URn/a0.0.0.21000.21000.472
critical1.7321.5331.0444.219
less stable1.7321.8313.2236.614
stable2.6260.21000.8503.621
total6.0153.7215.11714.85
VDn/a0.21000.0.0.4710.658
critical2.6270.6581.0444.221
less stable29.372.6276.51738.56
stable41.262.1307.81551.25
total73.335.31915.81094.52
VSn/a0.6580.6580.8502.131
critical3.0261.9314.7209.614
less stable11.21312.61224.7848.55
stable13.9118.41523.4845.85
total28.8723.5853.65105.92
ZGn/a0.0.0.0.0.0.0.0.
critical0.11000.0.0.3710.556
less stable1.3340.0.0.6591.827
stable1.5330.21001.6283.216
total2.9190.21002.5205.57
ZHn/a0.0.0.0.0.0.0.0.
critical1.6350.0.0.0.1.635
less stable17.990.0.1.24119.28
stable28.860.0.0.47129.26
total48.420.0.1.63550.01
Switzerlandn/a6.4182.0325.51913.912
critical38.4710.91331.3880.65
less stable252.7248.86193.23494.72
stable332.4231.68176.93540.91
total629.9193.34406.921130.11
© WSL, Swiss National Forest Inventory, 19.06.2020 #853337/319668
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a12.5125.8184.0231.8331.8331.04527.09
critical19.6105.3193.4241.9333.2251.24134.67
less stable157.3341.6621.899.21422.498.915261.32
stable166.6328.6820.5911.71323.199.014259.52
total356.0181.4449.7524.5850.6520.19582.41
inside perimetern/a0.0.1.2410.8500.6580.4710.0.3.026
critical0.0.1.2411.2411.6351.0450.4715.419
less stable1.63511.3137.6169.3149.5147.81547.26
stable3.1266.1184.42111.4126.1183.72334.67
total4.72019.81014.01122.9817.01011.91290.24
outside perimetern/a2.7274.0222.6282.6282.0312.52816.411
critical2.2305.8183.8233.9225.6192.82724.09
less stable18.21044.3627.2819.0925.1843.06176.93
stable28.2831.1717.91026.1821.1942.86167.23
total51.4685.3451.5551.6553.7591.13384.62
totaln/a15.31111.0137.4165.0204.2223.52346.46
critical21.7912.4128.4157.4169.8144.42164.05
less stable177.2397.3356.7537.5657.1559.75485.42
stable197.9265.8542.8649.1550.3555.55461.32
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 19.06.2020 #853338/319669
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGcritical1.0440.0.0.0.1.044
less stable21.270.0.0.0.21.27
stable24.560.0.0.0.24.56
total46.720.0.0.0.46.72
AIcritical0.0.0.0.0.21000.2100
less stable1.1390.21001.0382.324
stable1.3360.4721.0412.622
total2.3250.6572.2245.19
ARcritical0.0.0.0.0.21000.2100
less stable3.1220.21000.5573.719
stable2.2270.0.2.1274.316
total5.3130.21002.7228.16
BEcritical3.2250.6582.8276.517
less stable38.476.31728.4873.04
stable41.965.81833.8781.54
total83.5412.71264.94161.11
BL/BScritical0.0.0.0.0.0.0.0.
less stable5.9170.0.1.6357.514
stable9.8110.0.2.23012.09
total15.760.0.3.92219.64
FRcritical1.3410.0.0.0.1.341
less stable11.9110.3707.51519.88
stable12.7110.7495.21818.68
total25.951.04012.81039.73
GEcritical0.0.0.0.0.0.0.0.
less stable0.8660.0.0.0.0.866
stable2.3250.0.0.0.2.325
total3.1130.0.0.0.3.113
GLcritical0.4710.0.0.4700.850
less stable2.6252.3282.9247.912
stable1.8321.5341.8335.117
total4.9183.8205.11713.87
GRcritical3.4242.0323.9229.214
less stable19.81010.01430.4760.25
stable31.078.71535.3775.14
total54.2520.7969.64144.52
JUcritical1.0440.0.0.21001.240
less stable9.4130.7494.12114.210
stable10.9110.21006.31617.48
total21.360.94310.51132.83
LUcritical1.9330.0.1.0452.926
less stable12.2110.6583.32416.19
stable17.880.0.2.62720.47
total31.940.6586.81639.43
NEcritical0.0.0.0.0.0.0.0.
less stable6.7150.0.1.2387.913
stable16.781.0441.63319.36
total23.451.0442.82427.33
NWcritical0.31000.31000.5721.047
less stable2.2300.5711.3394.019
stable1.1480.4670.8482.229
total3.5211.2442.6267.29
OWcritical0.0.0.11000.4720.559
less stable4.2201.3384.41910.010
stable4.8180.21002.6277.613
total9.1121.7337.41318.14
SGcritical1.1450.0.1.2412.330
less stable8.7143.12514.01125.97
stable10.3131.2449.11320.78
total20.194.42124.3748.84
SHcritical0.21000.0.0.0.0.2100
less stable3.0240.0.0.0.3.024
stable8.790.0.0.4699.08
total11.940.0.0.46912.33
SOcritical0.21000.0.0.0.0.2100
less stable10.0120.0.1.73511.811
stable18.370.21001.14119.67
total28.530.21002.92631.62
SZcritical0.8500.21001.4372.428
less stable6.3160.9495.21812.410
stable6.3160.3704.02110.711
total13.5101.43710.71125.54
TGcritical0.9450.0.0.0.0.945
less stable7.2140.0.1.2388.412
stable9.1110.0.1.23810.310
total17.250.0.2.42619.63
TIcritical0.8500.6585.9187.216
less stable8.2153.82345.9557.94
stable7.3163.72223.8834.77
total16.3108.01575.6399.92
URcritical0.6580.4710.4711.337
less stable2.9241.7312.3286.913
stable1.4371.4362.0304.718
total4.8183.5214.61812.96
VDcritical1.8330.0.1.0452.826
less stable23.082.6277.91533.56
stable42.652.4286.31751.45
total67.535.01915.21087.72
VScritical2.4292.3284.5219.214
less stable8.31510.81325.2844.35
stable13.8119.81422.0945.65
total24.5822.9851.6599.02
ZGcritical0.0.0.0.0.21000.2100
less stable1.6320.21000.8412.522
stable1.3350.0.1.3332.622
total2.9190.21002.3225.48
ZHcritical2.0310.0.0.21002.130
less stable17.490.0.1.04518.48
stable27.860.0.0.47028.26
total47.120.0.1.63548.82
Switzerlandcritical23.096.31724.1953.46
less stable236.2345.66192.03473.82
stable326.0237.97166.73530.61
total585.2189.84382.821057.81
© WSL, Swiss National Forest Inventory, 19.06.2020 #853339/319670
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a14.1126.5185.8182.8272.4291.63533.18
critical19.8105.3193.8232.1313.4241.43835.87
less stable159.1343.3622.299.41423.999.814267.72
stable170.8330.6821.1912.91224.5810.214270.12
total363.8185.7452.9527.1854.3523.09606.81
inside perimetern/a0.0.1.4380.8500.8500.6580.0.3.624
critical0.0.1.2411.2411.6351.0450.4715.419
less stable1.83311.5138.0159.3149.7148.01548.46
stable3.1266.5174.42111.4126.1183.72335.07
total4.92020.5914.41123.1817.41012.11292.44
outside perimetern/a2.7274.4213.0262.8272.6283.32418.910
critical2.2306.4174.2223.9225.6192.82725.09
less stable18.21045.9628.6719.4925.3844.86182.23
stable28.8832.0718.11027.3721.9943.56171.63
total52.0688.7453.9553.4555.3594.43397.72
totaln/a16.81112.2139.6146.4175.6194.92055.66
critical21.9913.0129.2147.61610.0144.62166.35
less stable179.23100.8358.8538.1658.9562.74498.42
stable202.7269.0543.6651.5552.5557.45476.72
total420.61194.91121.32103.62127.02129.521096.91
© WSL, Swiss National Forest Inventory, 19.06.2020 #853340/319671
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a13.686.6125.9133.5172.6201.42733.75
critical16.285.4133.9163.0184.3151.03233.75
less stable161.9241.7422.669.11024.069.710268.92
stable177.8232.2520.0714.2824.8610.510279.52
total369.5185.9352.3429.8555.8422.66615.81
inside perimetern/a0.0.1.1300.9331.3280.6410.3584.215
critical0.0.2.5201.6251.6261.5260.7387.911
less stable1.82311.297.6119.7109.9108.01148.34
stable2.3215.8134.01612.786.6125.51336.85
total4.21520.6714.1825.3518.6714.5897.23
outside perimetern/a2.4204.3153.8162.6202.5202.81918.37
critical1.7246.4124.2153.1185.2143.41724.06
less stable18.8748.8429.4516.8726.7647.74188.32
stable26.4629.2518.0724.9620.9740.44159.82
total49.3488.7355.4347.3455.3394.32390.41
totaln/a16.0812.0910.6107.4115.7134.51556.24
critical17.9714.389.6107.61111.195.11465.64
less stable182.52101.8259.6335.6560.7365.43505.51
stable206.6267.2341.9451.8352.3456.43476.11
total422.90195.21121.81102.42129.71131.411103.50
© WSL, Swiss National Forest Inventory, 19.06.2020 #853341/319672
NFI4
forest area
avalanches SilvaProtect · stand stability
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGcritical1.0440.0.0.0.1.044
less stable21.870.0.0.0.21.87
stable24.760.0.0.0.24.76
total47.520.0.0.0.47.52
AIcritical0.0.0.0.0.21000.2100
less stable1.1390.21001.0382.324
stable1.5340.4721.0412.922
total2.5240.6572.2245.310
ARcritical0.0.0.0.0.21000.2100
less stable3.1220.21000.5573.719
stable2.2270.0.2.1274.316
total5.3130.21002.7228.16
BEcritical4.2220.6582.8277.516
less stable41.666.71729.2877.44
stable43.665.81834.6784.04
total89.3413.11266.54168.91
BL/BScritical0.0.0.0.0.0.0.0.
less stable6.1160.0.1.6357.814
stable10.2110.0.2.52812.79
total16.360.0.4.12120.43
FRcritical1.5380.0.0.0.1.538
less stable12.3110.3707.71420.48
stable13.1110.7495.61819.48
total27.051.04013.41041.43
GEcritical0.0.0.0.0.0.0.0.
less stable0.8660.0.0.0.0.866
stable2.9190.0.0.0.2.919
total3.750.0.0.0.3.75
GLcritical0.6580.0.0.5561.140
less stable3.4222.3282.9248.712
stable2.0311.7321.8335.417
total6.0164.0205.21715.26
GRcritical5.8182.4294.92013.112
less stable26.3811.01334.0771.24
stable37.779.31440.1687.24
total69.8522.7979.04171.52
JUcritical1.0440.0.0.21001.240
less stable9.8120.7494.12114.69
stable11.1110.21006.31617.67
total21.960.94310.51133.43
LUcritical1.9330.0.1.0452.926
less stable12.9110.6583.32416.79
stable18.080.0.2.82620.87
total32.840.6587.01640.42
NEcritical0.0.0.0.0.0.0.0.
less stable6.9150.0.1.2388.113
stable17.281.0441.63319.96
total24.151.0442.82428.03
NWcritical0.31000.31000.7571.340
less stable2.7270.5711.3394.517
stable1.3420.4670.8482.527
total4.3181.2442.8248.27
OWcritical0.0.0.11000.4720.559
less stable4.6191.3384.41910.410
stable5.2180.21002.7268.213
total9.9111.7337.51319.04
SGcritical1.1450.0.1.2412.330
less stable10.2133.12514.71028.07
stable11.1131.24410.61223.08
total22.484.42126.5753.33
SHcritical0.21000.0.0.0.0.2100
less stable3.0240.0.0.0.3.024
stable8.790.0.0.4699.08
total11.940.0.0.46912.33
SOcritical0.21000.0.0.0.0.2100
less stable10.2120.0.1.73512.011
stable18.770.21001.14120.06
total29.030.21002.92632.12
SZcritical1.0450.4711.4372.826
less stable6.7160.9496.01613.79
stable7.5150.3704.22112.111
total15.391.63511.71128.54
TGcritical0.9450.0.0.0.0.945
less stable7.7130.0.1.2388.911
stable9.1110.0.1.23810.310
total17.740.0.2.42620.12
TIcritical1.7330.6586.8179.114
less stable11.3134.62152.1568.04
stable12.5124.42027.2844.26
total25.689.51486.23121.32
URcritical1.0440.4710.4711.732
less stable3.9211.9303.0248.812
stable1.9311.4362.0305.317
total6.8153.7215.31615.86
VDcritical2.0310.0.1.0453.026
less stable25.682.6278.11536.36
stable47.152.6276.51756.34
total74.735.21915.61095.62
VScritical3.6232.3285.31911.213
less stable12.81211.21226.7850.85
stable17.81010.21323.8851.85
total34.3723.7855.84113.82
ZGcritical0.0.0.0.0.21000.2100
less stable1.8290.21000.8412.821
stable1.5320.0.1.3332.721
total3.3170.21002.3225.76
ZHcritical2.2300.0.0.21002.329
less stable17.690.0.1.04518.68
stable28.060.0.0.47028.46
total47.820.0.1.63549.42
Switzerlandcritical30.186.91727.3864.35
less stable264.2248.46206.73519.32
stable354.9240.17180.53575.51
total649.2195.44414.521159.11
© WSL, Swiss National Forest Inventory, 19.06.2020 #853342/319673
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.4381.4382.2300.6580.6580.0.6.318
critical12.8129.3146.2173.0264.9202.23038.47
less stable139.2341.8624.9811.21327.988.715253.72
stable214.7237.2721.8913.91126.1814.711328.52
total368.2189.7455.2528.8759.5525.68626.91
inside perimetern/a0.0.0.4711.0450.6580.0.0.0.2.032
critical0.4712.6282.8261.9312.3301.04510.913
less stable1.43812.4127.61612.6129.7145.21949.06
stable2.8275.0203.4248.4155.8186.41731.88
total4.72020.4914.81123.5817.81012.71293.84
outside perimetern/a0.0.1.0451.0440.8501.8330.8505.519
critical1.2416.4185.4194.7206.5177.11631.38
less stable23.0944.5629.8724.7827.3844.86194.03
stable28.2837.2719.7923.4823.7845.66177.83
total52.4689.1455.9553.6559.3598.33408.72
totaln/a1.4382.9264.2212.1312.4290.85013.812
critical14.41218.21014.4119.61413.71210.31480.75
less stable163.6398.6362.4448.5564.9458.85496.72
stable245.7279.5444.8645.8555.6566.74538.11
total425.21199.21125.92105.92136.62136.621129.41
© WSL, Swiss National Forest Inventory, 19.06.2020 #853343/319674
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.4381.4382.2300.6580.4710.0.6.118
critical12.2138.9155.6183.0263.7231.43834.87
less stable136.6337.9722.799.21423.997.216237.43
stable205.7233.2719.21011.71222.7911.613304.12
total356.0181.4449.7524.5850.6520.19582.41
inside perimetern/a0.0.0.4711.0450.6580.0.0.0.2.032
critical0.4712.6282.8261.9312.3301.04510.913
less stable1.43812.2127.41612.2129.1145.21947.56
stable2.8274.6212.8278.2155.6185.71829.78
total4.72019.81014.01122.9817.01011.91290.24
outside perimetern/a0.0.1.0450.8500.6581.8330.8505.120
critical1.2416.2184.6214.7205.7186.71729.18
less stable22.6942.2627.9724.3825.5841.56183.93
stable27.6835.8718.31022.0920.7942.16166.43
total51.4685.3451.5551.6553.7591.13384.62
totaln/a1.4382.9264.0221.9332.2300.85013.212
critical13.81217.71013.0129.61411.7139.11474.95
less stable160.7392.3457.9545.6558.5553.95468.82
stable236.1273.6440.3641.9648.9559.35500.22
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 19.06.2020 #853344/319675
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a1.3381.5352.3280.6580.7500.0.6.317
critical12.3129.0146.2163.1235.3181.93037.87
less stable140.4342.1625.5811.31228.079.214256.52
stable212.5238.0622.5814.01125.1814.910326.92
total366.6190.5456.5529.0759.1526.08627.61
inside perimetern/a0.0.0.4711.1410.5580.0.0.0.2.030
critical0.4712.4273.1232.1282.3281.04111.412
less stable1.43511.6127.81413.0119.3135.31848.46
stable2.7265.5183.0248.1145.5176.31630.97
total4.52019.9914.91023.7817.11012.61192.74
outside perimetern/a0.0.0.9451.4350.9451.6330.7505.618
critical1.2387.1165.0195.0187.0166.41631.77
less stable22.3945.5629.5723.6828.1744.35193.43
stable27.5835.7720.6924.3823.1846.15177.43
total51.1589.3356.5453.8459.9497.43408.12
totaln/a1.3382.8254.8192.0302.3270.75013.911
critical13.91118.6914.31110.21314.7119.31380.95
less stable164.2399.1362.8447.9565.4458.84498.21
stable242.7279.2446.1546.4553.7567.24535.31
total422.11199.71128.02106.42136.12136.021128.41
© WSL, Swiss National Forest Inventory, 19.06.2020 #853345/319676
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a3.5230.0.1.9325.419
critical3.7230.0.1.0454.620
less stable43.761.6358.61453.85
stable62.543.02515.41080.94
total113.324.62026.88144.81
Eastern Juran/a2.5280.0.0.4702.926
critical1.8330.0.0.0.1.833
less stable17.790.0.1.53719.28
stable19.580.0.2.32921.87
total41.630.0.4.12245.72
Western Plateaun/a1.5370.0.0.0.1.537
critical2.3300.0.0.0.2.330
less stable15.3100.0.1.34116.69
stable22.970.0.3.72326.66
total42.030.0.5.01947.02
Central Plateaun/a1.9310.0.0.21002.130
critical5.2190.0.0.8505.917
less stable31.660.0.4.42036.05
stable20.880.0.4.12124.97
total59.530.0.9.41369.01
Eastern Plateaun/a3.3240.0.0.21003.523
critical6.3170.0.0.4716.716
less stable48.450.0.2.42950.75
stable42.250.0.2.52844.75
total100.220.0.5.519105.61
Western Pre-Alpsn/a1.7350.4711.1463.226
critical1.3440.4712.6284.322
less stable6.6161.6369.91318.19
stable6.0181.9326.81614.710
total15.6104.32120.4840.33
Central Pre-Alpsn/a2.2300.21002.1304.521
critical3.0260.4711.3384.720
less stable26.483.62323.7853.64
stable16.4101.53814.51132.37
total47.955.61841.6595.12
Eastern Pre-Alpsn/a2.3310.0.1.9334.122
critical1.9330.4711.2413.524
less stable14.6111.14016.31032.06
stable14.2111.24112.71128.17
total32.962.72632.1667.73
Northwestern Alpsn/a2.1310.6580.8503.524
critical1.2410.4711.9333.524
less stable7.9156.41710.91325.27
stable6.5172.6279.91318.99
total17.61010.01323.5851.13
Central Alpsn/a1.2400.21000.0.1.436
critical1.0440.4700.21001.635
less stable4.7183.1244.91812.79
stable2.5271.2401.6355.218
total9.5124.8186.71520.95
Northeastern Alpsn/a0.6580.6590.8512.032
critical0.6580.4712.2283.124
less stable2.6273.3246.01711.911
stable3.9222.1313.6229.613
total7.6156.41612.71026.65
Southwestern Alpsn/a1.8330.6582.6285.020
critical1.9331.6353.9227.416
less stable9.2149.31419.0937.56
stable11.71311.41226.1849.15
total24.5822.9851.6599.02
Southeastern Alpsn/a1.8330.4712.0314.222
critical3.2251.0455.6199.814
less stable22.499.51425.1857.15
stable23.196.11821.1950.35
total50.6517.01053.75121.32
Southern Alpsn/a1.0450.0.2.5283.523
critical1.2410.4712.8274.421
less stable8.9157.81543.0659.75
stable9.0143.72342.8655.55
total20.1911.91291.13123.12
Switzerlandn/a27.393.02616.61146.96
critical34.675.21923.8963.65
less stable260.0247.26176.93484.12
stable261.1234.67166.93462.72
total583.0190.14384.321057.41
© WSL, Swiss National Forest Inventory, 19.06.2020 #853346/319677
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a3.9220.0.1.9325.818
critical3.7230.0.1.0454.620
less stable44.061.6358.61454.25
stable64.843.02515.71083.53
total116.324.62027.28148.21
Eastern Juran/a2.8270.0.0.4703.225
critical1.8330.0.0.0.1.833
less stable17.790.0.1.53719.28
stable19.580.0.2.32921.87
total41.830.0.4.12246.02
Western Plateaun/a2.2310.0.0.0.2.231
critical2.5280.0.0.0.2.528
less stable15.5100.0.1.34116.89
stable23.370.0.3.92227.26
total43.530.0.5.21948.72
Central Plateaun/a2.1300.0.0.21002.329
critical5.2190.0.0.8505.917
less stable32.060.21004.42036.65
stable21.280.0.4.12125.37
total60.520.21009.41370.11
Eastern Plateaun/a3.5230.0.0.21003.723
critical6.3170.0.0.4716.716
less stable49.150.0.2.42951.55
stable43.350.0.2.52845.85
total102.320.0.5.519107.71
Western Pre-Alpsn/a1.9330.6581.5384.023
critical1.3440.4712.6284.322
less stable6.6161.6369.91318.19
stable6.0181.9327.01614.910
total15.8104.52021.0841.33
Central Pre-Alpsn/a2.4290.21002.1304.720
critical3.0260.4711.9325.319
less stable27.483.62324.7855.64
stable16.9101.53814.91133.37
total49.755.61843.6598.92
Eastern Pre-Alpsn/a3.5240.0.1.9335.419
critical1.9330.4711.2413.524
less stable14.6111.14017.11032.86
stable14.4111.24112.91128.47
total34.462.72633.1670.12
Northwestern Alpsn/a2.3300.6580.8503.823
critical1.2410.4711.9333.524
less stable8.4156.61711.51226.57
stable7.9153.02510.11320.98
total19.8910.61324.3754.73
Central Alpsn/a1.6350.21000.0.1.832
critical1.2400.4700.4712.031
less stable5.1173.4225.31713.98
stable2.5271.2401.6355.218
total10.5115.2177.21422.95
Northeastern Alpsn/a0.7500.6591.2412.628
critical0.7500.4712.4273.522
less stable2.6273.3246.21612.110
stable4.3212.1313.62210.013
total8.3146.41613.51028.25
Southwestern Alpsn/a2.8270.8502.8276.417
critical2.1311.6353.9227.616
less stable9.4149.31419.4938.16
stable12.91211.41227.3751.55
total27.1823.1853.45103.62
Southeastern Alpsn/a2.4290.6582.6285.619
critical3.4241.0455.61910.014
less stable23.999.71425.3858.95
stable24.586.11821.9952.55
total54.3517.41055.35127.02
Southern Alpsn/a1.6350.0.3.3244.920
critical1.4380.4712.8274.621
less stable9.8148.01544.8662.74
stable10.2143.72343.5657.45
total23.0912.11294.43129.52
Switzerlandn/a33.683.62419.01056.36
critical35.775.21924.8965.85
less stable266.4248.46182.23497.02
stable271.7235.07171.33477.92
total607.4192.34397.321097.01
© WSL, Swiss National Forest Inventory, 19.06.2020 #853347/319678
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a3.7160.0.1.4275.114
critical2.9180.0.0.8353.716
less stable45.041.7258.91055.63
stable69.732.42114.5886.62
total121.424.11625.56151.01
Eastern Juran/a2.0220.0.0.2712.221
critical1.8230.0.0.0.1.823
less stable19.560.0.1.13020.65
stable18.760.0.2.61921.35
total42.120.0.3.91646.01
Western Plateaun/a2.0230.0.0.3582.321
critical2.1220.0.0.0.2.122
less stable14.670.0.1.42716.07
stable25.250.0.3.41728.64
total44.020.0.5.11449.02
Central Plateaun/a2.2210.0.0.4502.519
critical4.4150.0.0.7385.014
less stable31.740.2715.31337.24
stable21.660.0.3.51625.15
total59.820.2719.8969.91
Eastern Plateaun/a3.7160.0.0.11003.816
critical4.9140.0.0.2715.114
less stable50.730.0.2.12252.73
stable42.940.0.2.61945.64
total102.210.0.5.014107.21
Western Pre-Alpsn/a1.8230.4501.2293.417
critical1.4270.7382.2214.315
less stable5.9121.72412.0819.76
stable6.0121.8237.01114.87
total15.274.61422.4542.22
Central Pre-Alpsn/a3.2180.11002.1225.413
critical2.7190.6412.6195.913
less stable27.053.21724.8655.13
stable18.771.32813.6833.75
total51.735.21443.14100.01
Eastern Pre-Alpsn/a3.2180.0.2.5205.713
critical1.6250.4501.9233.916
less stable14.781.22918.5634.34
stable13.780.93311.4925.95
total33.142.42034.3469.82
Northwestern Alpsn/a1.6250.6411.0323.217
critical1.4271.3291.5264.215
less stable8.5106.41212.1827.05
stable7.5112.7198.61018.86
total19.0611.0923.2553.22
Central Alpsn/a1.4270.2700.4502.122
critical1.3280.8350.3582.420
less stable4.6143.9155.61214.16
stable2.5200.9331.8245.213
total9.795.8128.1923.74
Northeastern Alpsn/a1.3280.7380.8352.918
critical1.0320.4501.8223.317
less stable3.3172.6185.41211.38
stable3.8162.2214.71410.78
total9.495.91212.8728.23
Southwestern Alpsn/a3.5171.3282.6207.411
critical3.0181.6263.1187.611
less stable9.1109.71016.8735.65
stable14.2812.7824.9651.83
total29.8525.3547.34102.42
Southeastern Alpsn/a2.6200.6412.5205.713
critical4.3151.5265.21411.19
less stable24.069.91026.7660.73
stable24.866.61220.9752.34
total55.8418.6755.33129.71
Southern Alpsn/a1.4270.3582.8194.515
critical1.0320.7383.4175.114
less stable9.7108.01147.7465.43
stable10.5105.51340.4456.43
total22.6614.5894.32131.41
Switzerlandn/a33.854.21518.3756.34
critical33.757.91123.7665.44
less stable268.3248.54188.42505.11
stable280.0236.95159.82476.81
total615.8197.63390.311103.60
© WSL, Swiss National Forest Inventory, 19.06.2020 #853348/319679
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.4700.0.0.0.0.470
critical1.8330.4710.4712.528
less stable37.761.43813.01152.15
stable73.442.82613.51189.63
total113.324.62026.88144.81
Eastern Juran/a0.0.0.0.0.0.0.0.
critical0.7580.0.0.0.0.758
less stable13.0110.0.1.24014.310
stable27.960.0.2.92630.85
total41.630.0.4.12245.72
Western Plateaun/a0.0.0.0.0.0.0.0.
critical1.2400.0.0.0.1.240
less stable20.080.0.1.93321.87
stable20.980.0.3.12524.07
total42.030.0.5.01947.02
Central Plateaun/a0.6580.0.0.0.0.658
critical4.1200.0.0.6584.719
less stable28.370.0.3.72332.06
stable26.570.0.5.21831.76
total59.530.0.9.41369.01
Eastern Plateaun/a0.4700.0.0.0.0.470
critical4.3210.0.0.21004.421
less stable37.660.0.2.52840.26
stable57.840.0.2.72760.64
total100.220.0.5.519105.61
Western Pre-Alpsn/a0.0.0.0.0.31000.3100
critical1.6360.21002.5294.221
less stable8.3152.7279.21320.28
stable5.7181.4378.41515.510
total15.6104.32120.4840.33
Central Pre-Alpsn/a0.8500.21000.4711.337
critical4.6211.1452.5288.315
less stable22.593.42421.3947.35
stable20.090.94417.31038.26
total47.955.61841.6595.12
Eastern Pre-Alpsn/a1.6350.0.0.0.1.635
critical2.3280.21002.5285.119
less stable16.0101.73316.7934.46
stable13.0120.85012.91226.67
total32.962.72632.1667.73
Northwestern Alpsn/a0.6580.21000.4711.240
critical2.7271.4371.2415.419
less stable7.0166.11811.41224.57
stable7.3162.23010.51320.09
total17.61010.01323.5851.13
Central Alpsn/a0.6580.4710.21001.240
critical2.3281.9300.8505.018
less stable3.8202.1293.7219.611
stable2.7250.4712.0305.118
total9.5124.8186.71520.95
Northeastern Alpsn/a0.0.0.6580.5571.140
critical1.0450.6591.3382.826
less stable3.2243.6237.11513.99
stable3.5231.6363.7228.814
total7.6156.41612.71026.65
Southwestern Alpsn/a0.6580.6580.6581.933
critical3.0261.9314.7209.614
less stable9.21412.21224.3845.65
stable11.7128.21522.0941.96
total24.5822.9851.6599.02
Southeastern Alpsn/a0.4710.0.1.8332.230
critical3.7232.3305.71811.713
less stable23.999.11425.5858.55
stable22.795.61820.7948.95
total50.6517.01053.75121.32
Southern Alpsn/a0.0.0.0.0.8500.850
critical1.4381.0456.7179.114
less stable7.2165.21941.5653.95
stable11.6135.71842.1659.35
total20.1911.91291.13123.12
Switzerlandn/a6.1182.0325.12013.112
critical34.7710.91329.1874.75
less stable237.7347.76183.03468.42
stable304.5229.58167.13501.12
total583.0190.14384.321057.41
© WSL, Swiss National Forest Inventory, 19.06.2020 #853349/319680
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.4700.0.0.0.0.470
critical1.7320.4710.3712.427
less stable39.461.43512.71153.55
stable77.142.62613.71193.53
total118.624.42026.87149.81
Eastern Juran/a0.0.0.0.0.0.0.0.
critical0.6590.0.0.0.0.659
less stable13.9100.0.1.33715.29
stable27.760.0.2.82530.55
total42.330.0.4.12146.32
Western Plateaun/a0.0.0.0.0.0.0.0.
critical1.4350.0.0.0.1.435
less stable20.770.0.2.32723.07
stable21.670.0.3.12424.76
total43.730.0.5.41749.12
Central Plateaun/a0.5580.0.0.0.0.558
critical4.3190.0.0.7505.017
less stable28.660.0.3.42232.06
stable27.260.0.5.21732.45
total60.720.0.9.21370.01
Eastern Plateaun/a0.4700.0.0.0.0.470
critical4.0210.0.0.21004.220
less stable37.760.0.2.42740.15
stable59.740.0.2.82562.43
total101.710.0.5.318107.01
Western Pre-Alpsn/a0.0.0.0.0.21000.2100
critical1.5330.3702.5264.419
less stable9.1132.4269.91221.47
stable6.7161.6338.51416.99
total17.494.41921.2742.93
Central Pre-Alpsn/a0.9440.21000.4711.435
critical4.9190.9453.2239.014
less stable24.883.42323.0851.24
stable22.481.04116.71040.05
total52.945.51843.25101.62
Eastern Pre-Alpsn/a1.4350.21000.4712.029
critical2.4260.3702.4275.118
less stable16.6101.83017.7936.15
stable14.3100.75014.11029.16
total34.663.02334.6572.32
Northwestern Alpsn/a0.5580.21000.4711.140
critical2.6261.3371.4355.418
less stable8.1145.81712.21126.17
stable8.7142.92510.91222.58
total20.0810.21224.9755.13
Central Alpsn/a0.7500.4710.21001.237
critical2.6252.1261.0405.716
less stable4.6182.4263.92010.810
stable4.2190.6492.4257.314
total12.1105.5167.51325.04
Northeastern Alpsn/a0.21000.5580.9441.633
critical1.2380.5591.5333.322
less stable4.5193.7217.61415.88
stable4.0201.6344.2209.812
total9.9126.31514.2930.44
Southwestern Alpsn/a0.6580.5580.9452.030
critical3.1232.1285.01810.213
less stable11.31213.01123.6847.95
stable14.0118.11424.3846.45
total29.0723.7853.84106.42
Southeastern Alpsn/a0.7500.0.1.6332.327
critical5.3182.3287.01614.711
less stable28.079.31328.1765.44
stable25.185.51723.1853.75
total59.1517.11059.94136.12
Southern Alpsn/a0.0.0.0.0.7500.750
critical1.9301.0416.4169.313
less stable9.2145.31844.3558.84
stable14.9106.31646.1567.24
total26.0812.61197.43136.02
Switzerlandn/a6.3171.9305.61813.911
critical37.6711.31231.6780.55
less stable256.5248.56192.53497.51
stable327.5230.97177.93536.31
total627.9192.74407.621128.11
© WSL, Swiss National Forest Inventory, 19.06.2020 #853350/319681
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.4700.0.0.0.0.470
critical1.9320.4710.4712.727
less stable38.661.43813.21153.15
stable77.742.82614.11194.53
total118.624.62027.67150.81
Eastern Juran/a0.0.0.0.0.0.0.0.
critical0.7580.0.0.0.0.758
less stable13.2110.0.1.24014.510
stable28.360.0.2.92631.25
total42.230.0.4.12246.42
Western Plateaun/a0.0.0.0.0.0.0.0.
critical1.4370.0.0.0.1.437
less stable20.980.0.2.13122.97
stable22.570.0.3.12525.67
total44.730.0.5.21949.92
Central Plateaun/a0.6580.0.0.0.0.658
critical4.1200.0.0.6584.719
less stable28.760.0.3.72332.46
stable27.070.0.5.21832.26
total60.520.0.9.41369.91
Eastern Plateaun/a0.4700.0.0.0.0.470
critical4.4210.0.0.21004.620
less stable38.060.0.2.52840.66
stable59.940.0.2.72762.64
total102.810.0.5.519108.21
Western Pre-Alpsn/a0.0.0.0.0.31000.3100
critical1.8340.21002.5294.421
less stable9.1142.7279.41321.28
stable6.2181.6359.11416.89
total17.194.52021.2842.73
Central Pre-Alpsn/a0.8500.21000.4711.337
critical4.8201.1452.8278.715
less stable23.983.42422.6949.95
stable21.990.94417.71040.66
total51.455.61843.45100.52
Eastern Pre-Alpsn/a1.6350.0.0.21001.933
critical2.3280.21002.7275.219
less stable16.2101.73317.5935.46
stable14.2110.85013.81128.87
total34.462.72634.3671.42
Northwestern Alpsn/a0.6580.21000.4711.240
critical2.7271.4371.2415.419
less stable8.6156.31712.21227.17
stable8.9152.42910.91322.28
total20.8910.31324.8755.93
Central Alpsn/a0.6580.4710.21001.240
critical2.8261.9301.0445.617
less stable4.2192.3284.32010.910
stable3.7220.8492.2296.615
total11.3115.4177.61424.34
Northeastern Alpsn/a0.0.0.6580.5571.140
critical1.1410.6591.7333.423
less stable4.7203.6237.71416.09
stable3.8221.8343.9229.513
total9.7136.61613.81030.04
Southwestern Alpsn/a0.6580.6580.8502.131
critical3.0261.9314.7209.614
less stable11.21312.61224.7848.55
stable13.9118.41523.4845.85
total28.8723.5853.65105.92
Southeastern Alpsn/a0.6580.0.1.8332.429
critical4.9202.3306.51713.712
less stable27.989.71427.3864.94
stable26.185.81823.7855.65
total59.5517.81059.35136.62
Southern Alpsn/a0.0.0.0.0.8500.850
critical2.2301.0457.11610.314
less stable8.7155.21944.8658.85
stable14.7116.41745.6666.74
total25.6812.71298.33136.62
Switzerlandn/a6.3182.0325.51913.812
critical38.2710.91331.3880.45
less stable254.0249.16193.13496.12
stable328.9231.68178.33538.91
total627.4193.64408.221129.21
© WSL, Swiss National Forest Inventory, 19.06.2020 #853351/319682
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a5.9186.6176.0187.4161.04526.89
critical5.51914.0116.0187.8161.24134.57
less stable61.3595.7448.2646.668.915260.72
stable81.7485.3436.6747.669.014260.22
total154.42201.6196.84109.3420.19582.21
inside perimetern/a0.0.0.0.0.6582.4290.0.3.026
critical0.0.0.0.1.2413.8230.4715.419
less stable1.6350.0.6.21731.587.81547.26
stable3.1250.0.4.62123.493.72334.87
total4.7200.0.12.51261.1511.91290.34
outside perimetern/a2.4290.4715.0206.2182.52816.511
critical1.0451.2415.01913.8122.82723.89
less stable10.1138.11549.6666.1543.06177.03
stable17.91010.31434.3762.6542.86167.83
total31.4719.91094.04148.7391.13385.12
totaln/a8.2157.01611.61316.0113.52346.36
critical6.51715.21112.31225.494.42163.75
less stable73.14103.83104.03144.2359.75484.82
stable102.7395.6475.44133.6355.55462.72
total190.51221.51203.31319.11123.121057.51
© WSL, Swiss National Forest Inventory, 19.06.2020 #853352/319683
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a6.5177.6167.6169.8141.63533.08
critical5.51914.2116.0188.6151.43835.77
less stable61.7597.1449.3649.269.814267.12
stable83.9487.3437.4752.0610.214270.82
total157.62206.21100.24119.5423.09606.61
inside perimetern/a0.0.0.0.0.8502.8270.0.3.624
critical0.0.0.0.1.2413.8230.4715.419
less stable1.6350.21006.21732.378.01548.46
stable3.1250.0.4.62123.893.72335.27
total4.7200.210012.71262.7512.11292.44
outside perimetern/a2.4290.4715.4197.4163.32418.910
critical1.0451.2415.61814.2122.82724.89
less stable10.1138.11551.5667.9544.86182.43
stable18.31010.51335.0764.8543.56172.13
total31.8720.1997.63154.3394.43398.32
totaln/a8.8158.01513.71220.0104.92055.46
critical6.51715.41112.81226.684.62165.95
less stable73.54105.43107.03149.4362.74497.92
stable105.3397.8377.04140.6357.45478.12
total194.11226.51210.61336.51129.521097.31
© WSL, Swiss National Forest Inventory, 19.06.2020 #853353/319684
NFI1
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a5.7137.9118.21110.4101.42733.65
critical4.81411.495.71310.8101.03233.65
less stable64.6397.3247.8449.449.710268.72
stable88.4389.5338.5552.9410.510279.82
total163.51206.01100.13123.5222.66615.71
inside perimetern/a0.0.0.0.0.5453.4170.3584.215
critical0.0.0.0.1.7245.5140.7387.911
less stable1.7250.2716.01332.758.01148.64
stable2.4210.0.4.01625.165.51336.95
total4.1160.27112.1966.7414.5897.63
outside perimetern/a1.6250.8355.8137.4122.81918.37
critical0.8350.9336.71212.093.41723.86
less stable10.0108.71055.2466.6447.74188.22
stable17.179.41032.2561.3440.44160.42
total29.6519.8799.82147.3294.32390.81
totaln/a7.3118.71114.4821.274.51556.14
critical5.61312.3914.0828.365.11465.34
less stable76.33106.22109.02148.6265.43505.41
stable107.9299.0274.63139.3256.43477.21
total197.11226.11212.01337.51131.411104.00
© WSL, Swiss National Forest Inventory, 19.06.2020 #853354/319685
NFI2
forest area
avalanches SilvaProtect · stand stability
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
avalanches SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/an/a0.4701.0452.4292.4290.0.6.318
critical2.62810.1149.11514.5122.23038.47
less stable51.5587.4449.2656.368.715253.22
stable105.83109.3342.6656.4614.711328.72
total160.32207.91103.33129.6325.68626.71
inside perimetern/a0.0.0.0.0.21001.8330.0.2.032
critical0.4710.0.1.3388.1151.04510.913
less stable1.4370.0.7.81634.575.21949.06
stable2.9260.0.3.32419.3106.41731.98
total4.7200.0.12.71263.7512.71293.84
outside perimetern/a0.0.0.0.0.8503.8230.8505.519
critical0.4710.8507.81615.3117.11631.48
less stable14.7118.31549.8676.6544.86194.13
stable17.11011.11340.4764.0545.66178.23
total32.2720.1998.83159.7398.33409.22
totaln/a0.4701.0453.5248.1160.85013.812
critical3.42410.91318.21037.9710.31480.75
less stable67.7495.74106.93167.4358.85496.42
stable125.73120.4386.34139.7366.74538.81
total197.31228.01214.81353.11136.621129.71
© WSL, Swiss National Forest Inventory, 19.06.2020 #853355/319686
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