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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
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 ago38.540.0.0.0.38.54
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
total47.720.0.0.0.47.72
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 ago54.255.02034.3793.53
11-20 years ago13.6123.52312.11229.38
21-30 years ago8.8151.4387.91618.110
31-40 years ago5.5191.2414.32111.013
41-50 years ago1.6350.9453.8236.417
over 50 years ago11.2131.2415.41917.910
total94.9313.31267.94176.11
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 ago0.4730.21001.8312.427
41-50 years ago0.9500.0.1.0401.931
over 50 years ago2.0310.0.1.5383.524
total27.251.04013.71041.93
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 ago2.0310.21001.3373.522
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
total9.5124.0205.21718.75
GRless than 10 years ago19.2104.92020.0944.16
11-20 years ago12.5125.21915.91133.67
21-30 years ago12.5123.52311.61327.68
31-40 years ago9.6142.5285.31917.410
41-50 years ago7.4161.0454.72013.012
over 50 years ago32.577.01624.5964.05
total93.7424.1881.94199.72
JUless than 10 years ago13.1100.21005.51818.87
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
total22.160.94310.51133.52
LUless than 10 years ago19.680.21003.32423.07
11-20 years ago5.8180.0.1.4377.115
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
total33.740.6587.01641.42
NEless than 10 years ago17.770.7572.12820.56
11-20 years ago3.7220.4700.6594.619
21-30 years ago2.7280.0.0.0.2.728
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
total24.551.0443.02328.63
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 ago13.2111.53811.61226.37
11-20 years ago3.4240.8506.51610.713
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 ago4.6210.5713.9239.015
total24.884.42127.9657.13
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 ago17.670.0.1.63519.27
11-20 years ago6.2160.0.0.21006.416
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
total29.230.21003.12532.52
SZless than 10 years ago6.3160.6585.81712.610
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 ago3.2240.21001.0454.320
total15.791.63511.71129.04
TGless than 10 years ago13.770.0.1.23514.96
11-20 years ago2.4260.0.0.9453.321
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 ago0.21000.0.0.0.0.2100
total18.140.0.2.42620.53
TIless than 10 years ago4.7200.65810.01415.311
11-20 years ago5.0200.8496.41812.113
21-30 years ago6.1181.0458.51515.611
31-40 years ago3.7231.4386.81712.013
41-50 years ago2.8271.5358.11512.512
over 50 years ago12.3124.82053.0570.14
total34.7710.11392.83137.62
URless than 10 years ago3.0231.1402.2296.415
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 ago3.4240.8501.4385.618
total10.0124.0206.11520.16
VDless than 10 years ago39.361.3407.11647.65
11-20 years ago16.4101.8333.42421.69
21-30 years ago8.2151.0451.43810.513
31-40 years ago5.5180.21001.2416.916
41-50 years ago2.4290.4710.6583.424
over 50 years ago5.8180.6582.4298.815
total77.635.21916.01098.72
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 ago3.8232.6284.72011.013
41-50 years ago5.3192.5277.01614.811
over 50 years ago13.6127.81521.1942.56
total41.2624.3855.84121.32
ZGless than 10 years ago2.0260.21001.9264.113
11-20 years ago0.6560.0.0.21000.848
21-30 years ago0.4720.0.0.4670.750
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
total3.3170.21002.5205.95
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 ago354.0225.79136.74516.41
11-20 years ago110.3417.31165.95193.53
21-30 years ago77.8511.51348.36137.74
31-40 years ago40.6711.41329.4881.55
41-50 years ago27.597.81629.4864.75
over 50 years ago99.6424.79119.24243.52
total709.9198.54428.921237.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #863094/329425
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