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NFI4
forest area
landslide/mudflow SilvaProtect · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
landslide/mudflow SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.0.0.0.0.0.0.0.
less than 10 years ago68.947.9156.91683.83
11-20 years ago22.992.1303.42328.58
21-30 years ago10.6131.6351.43813.511
31-40 years ago7.1160.4712.1319.514
41-50 years ago4.6200.0.1.3386.018
over 50 years ago4.5212.2282.5289.314
total118.6214.31117.610150.51
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago23.671.9330.65826.16
11-20 years ago10.9121.0450.65812.511
21-30 years ago2.9260.0.0.21003.125
31-40 years ago1.3400.0.0.4711.735
41-50 years ago0.6580.21000.0.0.850
over 50 years ago1.7340.4710.0.2.231
total41.233.5241.83346.62
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.860.4713.22531.45
11-20 years ago7.4160.0.0.6578.015
21-30 years ago3.9230.21000.0.4.122
31-40 years ago2.0310.0.0.21002.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.130.8504.22149.12
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.641.5353.82253.03
11-20 years ago9.3130.5581.63511.512
21-30 years ago1.4370.21000.6582.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.4700.0.1.241
total59.733.1256.41769.11
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago76.831.1412.32980.23
11-20 years ago15.3110.21000.85016.310
21-30 years ago5.6180.0.1.0456.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago0.8500.4710.21001.338
total101.611.7334.321107.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.1160.9449.51317.59
11-20 years ago3.7231.1464.3229.014
21-30 years ago2.6280.4712.2285.219
31-40 years ago1.0450.0.2.5273.523
41-50 years ago1.4380.4701.2373.024
over 50 years ago1.7340.5712.9275.120
total17.693.22422.5743.33
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago24.283.02621.3948.55
11-20 years ago12.1120.75811.31324.08
21-30 years ago3.0260.6583.7237.316
31-40 years ago3.9230.0.1.8355.719
41-50 years ago2.7270.0.1.5384.222
over 50 years ago5.3190.6583.8239.714
total51.254.92043.3599.42
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.0102.23014.01132.36
11-20 years ago8.5151.7336.81717.010
21-30 years ago3.3250.4712.8276.417
31-40 years ago2.3290.7492.4295.418
41-50 years ago1.9330.21001.9314.022
over 50 years ago4.1220.21002.9257.216
total36.165.51830.8672.32
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago6.8172.8269.41419.09
11-20 years ago3.8231.0454.2219.114
21-30 years ago3.3251.0455.1199.314
31-40 years ago1.6350.4712.3304.321
41-50 years ago2.0310.21002.7274.920
over 50 years ago6.2181.4384.72012.312
total23.786.91628.3758.93
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5272.0312.6277.015
11-20 years ago2.1290.8502.3285.217
21-30 years ago2.3290.6561.2404.021
31-40 years ago1.0450.6570.4711.931
41-50 years ago0.6560.6570.4711.535
over 50 years ago3.7220.0.2.0315.617
total12.1114.5198.81225.44
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.2281.1455.7188.913
11-20 years ago1.7341.2373.2246.216
21-30 years ago1.5380.5582.0304.121
31-40 years ago0.9440.5560.8512.228
41-50 years ago0.4720.0.1.1451.537
over 50 years ago2.7260.6593.5226.916
total9.5134.02116.4929.85
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.3168.01510.21325.58
11-20 years ago4.0222.9267.61614.511
21-30 years ago2.2301.7335.9189.714
31-40 years ago3.6231.6354.3219.614
41-50 years ago3.0261.7335.31910.114
over 50 years ago14.2117.31622.9844.56
total34.3723.3856.24113.82
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.4114.42112.81232.67
11-20 years ago12.1124.12212.61228.88
21-30 years ago8.8152.72810.11421.59
31-40 years ago7.1162.4286.71716.211
41-50 years ago4.0221.1414.3219.414
over 50 years ago16.2112.13015.91134.27
total63.5516.91062.54142.82
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.4215.6197.71617.710
11-20 years ago2.8272.6284.5219.914
21-30 years ago2.7272.2307.01711.913
31-40 years ago4.1221.9317.01713.112
41-50 years ago2.6282.4298.31513.412
over 50 years ago15.31111.91256.8584.04
total32.0726.7891.33150.02
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago330.6242.97110.14483.61
11-20 years ago116.7420.01063.85200.53
21-30 years ago54.0612.11343.07109.14
31-40 years ago38.578.91531.2878.65
41-50 years ago26.097.11728.1861.26
over 50 years ago79.1528.08118.14225.23
total645.21119.04394.321158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #865384/331715
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