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NFI4
forest area
processes in channels 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
processes in channels 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 ago68.947.7157.21683.83
11-20 years ago22.992.8252.72728.58
21-30 years ago10.6131.5351.43813.511
31-40 years ago7.1161.6350.8509.514
41-50 years ago4.6201.0440.4716.018
over 50 years ago4.5213.1251.7339.314
total118.6217.61014.211150.51
Eastern Juran/a0.21000.0.0.0.0.2100
less than 10 years ago24.470.6581.14526.16
11-20 years ago11.1120.8500.65812.511
21-30 years ago2.9260.21000.0.3.125
31-40 years ago1.3400.4710.0.1.735
41-50 years ago0.8500.0.0.0.0.850
over 50 years ago1.7340.0.0.4712.231
total42.432.0312.13146.62
Western Plateaun/a0.21000.0.0.0.0.2100
less than 10 years ago27.863.2250.47131.45
11-20 years ago7.4160.6570.0.8.015
21-30 years ago3.9230.0.0.21004.122
31-40 years ago2.0310.21000.0.2.229
41-50 years ago1.1440.21000.21001.537
over 50 years ago1.7350.0.0.0.1.735
total44.134.2210.85049.12
Central Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago47.643.8221.63553.03
11-20 years ago9.3131.6350.55811.512
21-30 years ago1.4370.6580.21002.130
31-40 years ago0.6580.4710.4711.437
41-50 years ago0.0.0.0.0.0.0.0.
over 50 years ago0.8500.21000.21001.241
total59.736.6162.92669.11
Eastern Plateaun/a0.0.0.0.0.0.0.0.
less than 10 years ago77.132.7270.47180.23
11-20 years ago15.3111.0450.0.16.310
21-30 years ago5.6181.0450.0.6.617
31-40 years ago2.0310.0.0.0.2.031
41-50 years ago1.0450.0.0.0.1.045
over 50 years ago1.2410.21000.0.1.338
total102.314.9200.471107.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.1169.6130.84917.59
11-20 years ago3.7234.7200.7599.014
21-30 years ago2.6282.4270.21005.219
31-40 years ago1.0452.3290.21003.523
41-50 years ago1.4381.5350.21003.024
over 50 years ago1.7342.6280.7585.120
total17.6923.172.72743.33
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago24.2822.691.73548.55
11-20 years ago12.11211.7130.210024.08
21-30 years ago3.0264.3220.0.7.316
31-40 years ago3.9231.8350.0.5.719
41-50 years ago2.7271.5380.0.4.222
over 50 years ago5.3193.6230.8509.714
total51.2545.452.82799.42
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago16.21014.9111.24132.36
11-20 years ago8.5157.7150.75017.010
21-30 years ago3.3253.1250.0.6.417
31-40 years ago2.3292.5280.6575.418
41-50 years ago1.9331.7330.4714.022
over 50 years ago4.1222.9250.21007.216
total36.3632.963.12572.32
Northwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago6.81710.0132.23019.09
11-20 years ago3.8234.8200.4719.114
21-30 years ago3.3255.4180.6579.314
31-40 years ago1.6352.5290.21004.321
41-50 years ago2.0312.9260.0.4.920
over 50 years ago6.2185.7180.47012.312
total23.7831.363.92258.93
Central Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.5273.5231.0447.015
11-20 years ago2.1292.7260.4715.217
21-30 years ago2.3291.6350.21004.021
31-40 years ago1.0450.9440.0.1.931
41-50 years ago0.6560.8490.21001.535
over 50 years ago3.7221.8320.21005.617
total12.11111.2102.03025.44
Northeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago2.2285.6181.2418.913
11-20 years ago1.7343.8210.6596.216
21-30 years ago1.5382.2290.3714.121
31-40 years ago0.9441.1410.21002.228
41-50 years ago0.4721.1450.0.1.537
over 50 years ago2.7263.7220.5716.916
total9.51317.682.72629.85
Southwestern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago7.31615.2113.02625.58
11-20 years ago4.0229.4141.24114.511
21-30 years ago2.2307.0160.6589.714
31-40 years ago3.6235.5190.4719.614
41-50 years ago3.0265.9181.24110.114
over 50 years ago14.21126.284.02144.56
total34.3769.2310.313113.82
Southeastern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago15.41113.6123.62332.67
11-20 years ago12.11214.0112.82728.88
21-30 years ago8.81510.1142.72821.59
31-40 years ago7.1167.4161.83316.211
41-50 years ago4.0224.5210.9459.414
over 50 years ago16.21115.5112.52834.27
total63.5565.0414.311142.82
Southern Alpsn/a0.0.0.0.0.0.0.0.
less than 10 years ago4.42111.1132.33017.710
11-20 years ago2.8276.3180.8509.914
21-30 years ago2.7278.8150.47111.913
31-40 years ago4.1228.1150.85013.112
41-50 years ago2.6289.9140.85013.412
over 50 years ago15.31164.843.92384.04
total32.07109.038.915150.02
Switzerlandn/a0.4710.0.0.0.0.471
less than 10 years ago331.92124.1427.68483.61
11-20 years ago116.9471.9511.713200.53
21-30 years ago54.0648.366.817109.14
31-40 years ago38.5734.875.31978.65
41-50 years ago26.2930.784.32161.26
over 50 years ago79.45130.2315.611225.23
total647.31440.1271.251158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #859218/325549
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