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NFI3
forest area
avalanches SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGless than 10 years ago38.340.0.0.0.38.34
11-20 years ago4.8190.0.0.0.4.819
21-30 years ago1.8320.0.0.0.1.832
31-40 years ago1.4370.0.0.0.1.437
41-50 years ago0.6580.0.0.0.0.658
over 50 years ago0.6580.0.0.0.0.658
total47.520.0.0.0.47.52
AIless than 10 years ago0.9430.0.1.2362.126
11-20 years ago0.21000.21000.5510.942
21-30 years ago0.8450.0.0.21001.041
31-40 years ago0.21000.4720.21000.749
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.4700.0.0.21000.657
total2.5240.6572.2245.310
ARless than 10 years ago2.5250.0.1.6324.017
11-20 years ago1.4340.21000.5582.127
21-30 years ago1.1410.0.0.5551.633
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.0.0.0.0.21000.2100
over 50 years ago0.31000.0.0.0.0.3100
total5.3130.21002.7228.16
BEless than 10 years ago53.655.02033.3791.93
11-20 years ago13.2123.52312.11228.98
21-30 years ago8.8151.4387.91618.110
31-40 years ago5.3191.0454.32110.613
41-50 years ago1.6350.9453.6236.218
over 50 years ago10.8131.2415.21917.310
total93.4413.11266.54172.91
BL/BSless than 10 years ago9.4120.0.2.23111.610
11-20 years ago3.2250.0.0.4713.623
21-30 years ago2.1300.0.1.0443.124
31-40 years ago0.4710.0.0.21000.757
41-50 years ago0.8570.0.0.21000.950
over 50 years ago0.5710.0.0.0.0.571
total16.360.0.4.12120.43
FRless than 10 years ago18.180.7485.81824.66
11-20 years ago4.1210.0.1.7335.817
21-30 years ago1.6350.21001.9313.722
31-40 years ago0.4730.21001.6332.228
41-50 years ago0.9500.0.1.0401.931
over 50 years ago1.8330.0.1.5383.325
total27.051.04013.61041.63
GEless than 10 years ago2.3250.0.0.0.2.325
11-20 years ago1.0570.0.0.0.1.057
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 ago0.0.0.0.0.0.0.0.
over 50 years ago0.41000.0.0.0.0.4100
total3.750.0.0.0.3.75
GLless than 10 years ago2.1301.5341.8325.517
11-20 years ago1.8330.21001.3373.223
21-30 years ago1.3360.4711.0442.725
31-40 years ago0.8500.6570.0.1.437
41-50 years ago0.8500.4710.5581.732
over 50 years ago2.5260.9450.5584.020
total9.3124.0205.21718.55
GRless than 10 years ago19.0104.72020.0943.76
11-20 years ago12.1135.21915.91133.27
21-30 years ago12.3123.42411.21326.88
31-40 years ago9.2152.5285.31917.010
41-50 years ago7.2170.8504.72012.612
over 50 years ago31.386.81723.9962.05
total91.1423.3980.94195.42
JUless than 10 years ago12.9100.21005.51818.67
11-20 years ago3.1240.21001.4374.719
21-30 years ago4.1210.3671.7326.216
31-40 years ago1.2410.21000.8502.129
41-50 years ago0.4700.0.0.21000.657
over 50 years ago0.21000.0.0.9441.241
total21.960.94310.51133.43
LUless than 10 years ago19.280.21003.32422.67
11-20 years ago5.6180.0.1.4376.916
21-30 years ago4.0210.21001.2415.518
31-40 years ago2.3300.21000.4712.826
41-50 years ago0.4710.0.0.21000.658
over 50 years ago1.7350.0.0.6582.330
total33.140.6587.01640.82
NEless than 10 years ago17.570.7571.92920.16
11-20 years ago3.7220.4700.6594.619
21-30 years ago2.5290.0.0.0.2.529
31-40 years ago0.21000.0.0.0.0.2100
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.31000.0.0.3710.660
total24.151.0442.82428.03
NWless than 10 years ago0.7590.7571.5372.924
11-20 years ago1.9340.21000.7592.726
21-30 years ago0.5710.0.0.31000.856
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 ago1.2440.31000.4671.834
total4.3181.2442.8248.27
OWless than 10 years ago4.7190.9464.1209.711
11-20 years ago1.1410.0.1.0442.129
21-30 years ago1.0410.0.0.0.1.041
31-40 years ago0.9500.11000.4741.438
41-50 years ago0.6570.21000.21001.144
over 50 years ago2.0310.4741.8334.120
total10.3111.7337.51319.44
SGless than 10 years ago12.8111.53811.21225.57
11-20 years ago3.4240.8506.01710.313
21-30 years ago2.5290.4723.2246.117
31-40 years ago0.8500.9501.8333.524
41-50 years ago0.4710.21000.9501.538
over 50 years ago4.6210.5713.6248.615
total24.484.42126.7755.53
SHless than 10 years ago7.4110.0.0.4697.810
11-20 years ago3.0220.0.0.0.3.022
21-30 years ago1.0440.0.0.0.1.044
31-40 years ago0.0.0.0.0.0.0.0.
41-50 years ago0.21000.0.0.0.0.2100
over 50 years ago0.21000.0.0.0.0.2100
total11.940.0.0.46912.33
SOless than 10 years ago17.470.0.1.63519.07
11-20 years ago6.2160.0.0.0.6.216
21-30 years ago3.6230.0.0.4724.022
31-40 years ago0.9500.0.0.21001.045
41-50 years ago0.6590.0.0.5701.145
over 50 years ago0.4720.21000.21000.851
total29.030.21002.92632.12
SZless than 10 years ago6.1170.6585.81712.410
11-20 years ago2.6270.21002.0314.819
21-30 years ago1.4380.21001.5373.025
31-40 years ago1.2400.21000.5582.031
41-50 years ago1.0450.21000.9452.230
over 50 years ago2.9250.21001.0454.121
total15.391.63511.71128.54
TGless than 10 years ago13.770.0.1.23514.96
11-20 years ago2.2270.0.0.9453.222
21-30 years ago1.8310.0.0.21002.029
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 ago0.0.0.0.0.0.0.0.
total17.740.0.2.42620.12
TIless than 10 years ago4.6210.65810.01415.111
11-20 years ago4.8200.8496.41811.913
21-30 years ago6.1180.8508.51515.411
31-40 years ago3.7231.4386.81712.013
41-50 years ago2.8271.5358.11512.512
over 50 years ago12.1124.82052.4569.34
total34.179.91392.23136.22
URless than 10 years ago2.6251.1402.2296.015
11-20 years ago1.2400.7501.4363.323
21-30 years ago0.8500.21000.0.1.045
31-40 years ago0.5570.8500.9442.227
41-50 years ago1.0450.4690.21001.634
over 50 years ago3.2240.8501.4385.418
total9.3134.0206.11519.56
VDless than 10 years ago39.161.3406.91647.25
11-20 years ago15.6111.8333.42420.89
21-30 years ago7.8151.0451.43810.113
31-40 years ago5.5180.21001.2416.916
41-50 years ago2.4290.4710.4713.225
over 50 years ago5.4190.6582.4298.415
total75.835.21915.61096.62
VSless than 10 years ago8.6155.61810.31324.68
11-20 years ago3.3243.1257.51613.911
21-30 years ago6.5172.7265.31914.511
31-40 years ago3.6232.6284.72010.813
41-50 years ago5.1202.5277.01614.611
over 50 years ago13.2127.81521.1942.16
total40.4624.3855.84120.62
ZGless than 10 years ago2.0260.21001.9264.113
11-20 years ago0.6560.0.0.21000.848
21-30 years ago0.4720.0.0.21000.659
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
total3.3170.21002.3225.76
ZHless than 10 years ago35.240.0.1.24136.54
11-20 years ago7.7150.0.0.0.7.715
21-30 years ago3.1250.0.0.21003.424
31-40 years ago1.2410.0.0.0.1.241
41-50 years ago0.4700.0.0.21000.658
over 50 years ago0.0.0.0.0.0.0.0.
total47.820.0.1.63549.42
Switzerlandless than 10 years ago350.7225.59134.94511.11
11-20 years ago108.0417.31165.25190.53
21-30 years ago77.0511.11347.86135.94
31-40 years ago39.8711.21329.3880.35
41-50 years ago27.197.61629.1863.85
over 50 years ago96.2424.59117.44238.23
total698.8197.44423.721219.81
© WSL, Swiss National Forest Inventory, 18.06.2020 #863090/329421
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