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NFI2
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state1993/95
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a0.21000.0.0.0.0.2100
less than 10 years ago35.040.0.0.0.35.04
11-20 years ago8.4140.0.0.0.8.414
21-30 years ago2.0310.0.0.0.2.031
31-40 years ago1.0440.0.0.0.1.044
41-50 years ago0.6580.0.0.0.0.658
over 50 years ago0.8500.0.0.0.0.850
total48.120.0.0.0.48.12
AIn/a0.0.0.0.0.0.0.0.
less than 10 years ago0.4680.21000.9421.531
11-20 years ago0.9420.0.1.0431.927
21-30 years ago0.6580.4720.21001.139
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.21000.0.0.21000.471
over 50 years ago0.21000.0.0.0.0.2100
total2.3250.6572.2245.19
ARn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.9220.21001.1414.117
11-20 years ago1.5350.0.1.0392.525
21-30 years ago0.5670.0.0.5551.044
31-40 years ago0.0.0.0.0.21000.2100
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.4730.0.0.0.0.473
total5.3130.21002.7228.16
BEn/a7.1170.6581.4389.115
less than 10 years ago50.455.02031.8787.24
11-20 years ago21.393.82317.81042.86
21-30 years ago6.0182.2307.11615.211
31-40 years ago2.7270.8504.1227.616
41-50 years ago1.4380.4711.6353.424
over 50 years ago4.8200.8505.02010.613
total93.8313.51268.74176.01
BL/BSn/a0.21000.0.0.0.0.2100
less than 10 years ago8.2130.0.1.6379.911
11-20 years ago5.5170.0.1.7347.114
21-30 years ago0.9510.0.0.4711.341
31-40 years ago0.9500.0.0.4711.341
41-50 years ago0.21000.0.0.0.0.2100
over 50 years ago0.31000.0.0.0.0.3100
total16.360.0.4.12120.43
FRn/a1.0450.0.0.0.1.045
less than 10 years ago14.7100.5575.11920.38
11-20 years ago6.3170.5573.0259.813
21-30 years ago2.2310.0.3.2215.418
31-40 years ago1.6350.0.0.4722.032
41-50 years ago0.8500.0.0.7581.538
over 50 years ago1.3410.0.1.2412.529
total28.051.04013.51042.52
GEn/a0.6750.0.0.0.0.675
less than 10 years ago1.2500.0.0.0.1.250
11-20 years ago0.0.0.0.0.0.0.0.
21-30 years ago0.41000.0.0.0.0.4100
31-40 years ago0.41000.0.0.0.0.4100
41-50 years ago1.2500.0.0.0.1.250
over 50 years ago0.0.0.0.0.0.0.0.
total3.750.0.0.0.3.75
GLn/a3.7220.21001.0445.019
less than 10 years ago2.0311.3362.0305.217
11-20 years ago1.9290.6581.5344.019
21-30 years ago0.4710.6570.4711.437
31-40 years ago0.4710.4710.8501.634
41-50 years ago0.0.0.4710.21000.657
over 50 years ago0.8500.8500.4711.931
total9.2134.2196.31519.75
GRn/a21.2101.4384.72027.38
less than 10 years ago18.5105.31923.7947.66
11-20 years ago14.0115.41916.21135.67
21-30 years ago6.2182.7277.41616.311
31-40 years ago4.3212.2307.51614.011
41-50 years ago3.1261.0455.91810.014
over 50 years ago16.7105.21915.11137.17
total84.1423.3980.44187.81
JUn/a0.4710.0.0.0.0.471
less than 10 years ago9.8120.4713.92114.110
11-20 years ago8.2140.3672.92411.511
21-30 years ago2.3280.21001.4373.921
31-40 years ago1.0440.0.0.6571.635
41-50 years ago0.21000.0.0.6580.850
over 50 years ago0.21000.0.1.4371.635
total22.160.94310.71133.73
LUn/a1.0450.0.0.21001.241
less than 10 years ago17.280.0.3.12520.27
11-20 years ago10.6120.4712.22913.210
21-30 years ago3.4240.21001.0444.620
31-40 years ago0.6570.0.0.21000.850
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago1.5370.21000.6582.330
total34.340.8507.21542.42
NEn/a0.21000.0.0.21000.371
less than 10 years ago16.971.0442.32720.26
11-20 years ago5.1190.0.0.21005.218
21-30 years ago1.4380.0.0.0.1.438
31-40 years ago0.4710.0.0.0.0.471
41-50 years ago0.31000.0.0.21000.572
over 50 years ago0.0.0.0.0.4720.472
total24.251.0443.22228.43
NWn/a0.21000.0.0.0.0.2100
less than 10 years ago1.8330.9491.5374.219
11-20 years ago0.8560.0.0.7591.539
21-30 years ago0.0.0.0.0.0.0.0.
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.21000.0.0.4670.552
over 50 years ago1.4390.31000.0.1.736
total4.4171.2442.6268.17
OWn/a0.21000.0.0.21000.470
less than 10 years ago3.6220.3723.1247.014
11-20 years ago2.3270.4741.4374.119
21-30 years ago1.0450.11000.8502.031
31-40 years ago0.6570.21000.7561.537
41-50 years ago0.4710.5710.21001.144
over 50 years ago1.8330.11001.5353.422
total9.9111.7338.01319.54
SGn/a3.2250.21003.2256.617
less than 10 years ago11.6121.04510.01322.68
11-20 years ago6.1171.7357.41515.210
21-30 years ago1.0450.7583.0264.721
31-40 years ago0.4710.21002.0312.728
41-50 years ago1.1410.5711.0452.627
over 50 years ago2.2310.21003.4245.918
total25.784.52130.1660.33
SHn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.7110.0.0.0.7.711
11-20 years ago3.8200.0.0.21004.019
21-30 years ago0.0.0.0.0.21000.2100
31-40 years ago0.21000.0.0.0.0.2100
41-50 years ago0.21000.0.0.0.0.2100
over 50 years ago0.0.0.0.0.0.0.0.
total11.940.0.0.46912.33
SOn/a0.0.0.0.0.0.0.0.
less than 10 years ago18.970.0.1.04519.97
11-20 years ago7.7140.0.1.0458.713
21-30 years ago1.2360.0.0.21001.433
31-40 years ago0.8510.0.0.5701.341
41-50 years ago0.0.0.0.0.21000.2100
over 50 years ago0.6590.21000.0.0.850
total29.330.21002.92632.32
SZn/a0.8500.21000.21001.340
less than 10 years ago6.8150.7503.72211.211
11-20 years ago2.6270.21003.5236.217
21-30 years ago1.6350.21001.1402.925
31-40 years ago1.0450.21001.4372.627
41-50 years ago0.8500.0.1.0451.833
over 50 years ago1.5350.4710.8502.726
total15.191.93111.71128.73
TGn/a0.11000.0.0.0.0.1100
less than 10 years ago11.390.0.2.02813.47
11-20 years ago5.0170.0.0.4735.316
21-30 years ago0.7520.0.0.0.0.752
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.3720.0.0.0.0.372
total17.550.0.2.42619.93
TIn/a12.3120.65816.61029.58
less than 10 years ago3.1261.2407.51611.813
11-20 years ago2.9260.4718.51511.813
21-30 years ago1.6351.4387.51610.613
31-40 years ago2.4291.0457.91611.213
41-50 years ago2.0320.210014.01116.210
over 50 years ago8.5154.52135.0748.05
total32.879.21497.03139.02
URn/a3.4240.4710.8504.620
less than 10 years ago1.8311.3362.4275.516
11-20 years ago0.7490.21001.0441.930
21-30 years ago1.2401.0440.4712.626
31-40 years ago0.0.0.6560.0.0.656
41-50 years ago0.4720.21000.0.0.658
over 50 years ago1.6320.4711.4373.522
total9.2124.0205.91519.25
VDn/a3.4240.21000.4714.022
less than 10 years ago37.462.5276.31746.25
11-20 years ago16.1101.2412.52719.99
21-30 years ago9.6140.4711.93111.912
31-40 years ago2.8260.4711.3384.521
41-50 years ago1.6350.4701.2413.125
over 50 years ago5.2190.4712.5278.115
total76.135.51816.21097.92
VSn/a8.3151.2413.12512.612
less than 10 years ago6.5175.01910.81322.49
11-20 years ago4.8203.9227.31616.010
21-30 years ago4.0223.1258.11515.211
31-40 years ago2.7274.0217.01613.811
41-50 years ago2.0311.6356.61710.213
over 50 years ago7.9165.81813.41227.28
total36.2724.7856.44117.32
ZGn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.3240.21001.3323.815
11-20 years ago0.4720.0.0.8471.139
21-30 years ago0.0.0.0.0.4670.467
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.21000.0.0.0.0.2100
total2.9190.21002.5205.57
ZHn/a0.0.0.0.0.0.0.0.
less than 10 years ago36.040.0.1.24137.24
11-20 years ago8.8140.0.0.21009.014
21-30 years ago2.6280.0.0.0.2.628
31-40 years ago0.7570.0.0.21000.850
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.4700.0.0.0.0.470
total48.420.0.1.63550.01
Switzerlandn/a67.554.92032.08104.54
less than 10 years ago326.0227.08126.64479.62
11-20 years ago145.8319.01082.25247.03
21-30 years ago50.9613.21244.96109.04
31-40 years ago25.0910.01435.1770.15
41-50 years ago16.7115.12033.9755.66
over 50 years ago58.8619.41082.05160.13
total690.6198.64436.721226.00
© WSL, Swiss National Forest Inventory, 19.06.2020 #853446/319777
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