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NFI4
forest area
horizontal distance sample plot-road (4 classes) · time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
horizontal distance sample plot-road (4 classes)
up to 100 m101-500 m501-1000 mover 1000 mtotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Juran/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago49.5530.371.6350.47181.94
11-20 years ago13.81112.2120.6580.210026.98
21-30 years ago6.6176.0180.0.0.0.12.712
31-40 years ago2.7275.9180.21000.0.8.914
41-50 years ago2.5283.2240.0.0.0.5.818
over 50 years ago2.1305.7180.8500.0.8.714
total77.4463.443.3250.658144.81
Eastern Juran/a0.21000.0.0.0.0.0.0.2100
less than 10 years ago22.373.1250.0.0.0.25.56
11-20 years ago9.6142.8270.0.0.0.12.411
21-30 years ago2.1311.0440.0.0.0.3.125
31-40 years ago1.2400.21000.21000.0.1.735
41-50 years ago0.6580.21000.0.0.0.0.850
over 50 years ago1.1441.1450.0.0.0.2.231
total37.148.4150.21000.0.45.72
Western Plateaun/a0.21000.0.0.0.0.0.0.2100
less than 10 years ago19.789.7131.0450.0.30.45
11-20 years ago4.7202.9260.21000.0.7.815
21-30 years ago1.4401.9330.6570.0.3.923
31-40 years ago0.4701.4370.21000.0.2.031
41-50 years ago0.6580.6580.0.0.0.1.340
over 50 years ago0.6580.7580.21000.0.1.537
total27.5617.292.3300.0.47.02
Central Plateaun/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago42.2410.0130.6580.0.52.83
11-20 years ago8.2142.9250.4710.0.11.512
21-30 years ago1.5350.6580.0.0.0.2.130
31-40 years ago0.6580.8500.0.0.0.1.437
41-50 years ago0.0.0.0.0.0.0.0.0.0.
over 50 years ago0.21000.8500.0.0.21001.241
total52.8315.0101.0450.210069.01
Eastern Plateaun/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago70.138.2150.4710.0.78.73
11-20 years ago12.0124.0220.0.0.0.16.010
21-30 years ago5.0191.6350.0.0.0.6.617
31-40 years ago1.3400.8500.0.0.0.2.031
41-50 years ago0.6580.4710.0.0.0.1.045
over 50 years ago0.4710.7500.21000.0.1.338
total89.4215.7100.6580.0.105.61
Western Pre-Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago7.2168.3141.4410.0.16.99
11-20 years ago4.5213.3230.6570.31008.714
21-30 years ago1.0442.2280.5580.31004.021
31-40 years ago1.2411.6330.4710.0.3.224
41-50 years ago0.8491.3380.7500.0.2.825
over 50 years ago0.8511.9341.7350.31004.621
total15.51018.685.4190.85640.33
Central Pre-Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago19.4924.283.7230.210047.55
11-20 years ago8.61512.3122.0320.0.22.99
21-30 years ago1.6354.8210.7500.21007.316
31-40 years ago2.3312.6280.4710.21005.519
41-50 years ago0.21002.6281.0450.0.3.823
over 50 years ago0.6583.5243.7230.4718.115
total32.6750.0511.5121.14595.12
Eastern Pre-Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago14.01113.4112.7270.65830.67
11-20 years ago6.0187.5162.6280.47016.410
21-30 years ago1.2403.7230.9450.21006.018
31-40 years ago0.8502.7260.6581.0455.019
41-50 years ago0.5581.0451.8330.21003.523
over 50 years ago0.21003.4241.9310.6586.218
total22.7831.6610.5133.02667.73
Northwestern Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago5.6189.5142.1310.65817.79
11-20 years ago2.7284.0220.8500.21007.615
21-30 years ago2.1314.5201.3400.21008.115
31-40 years ago0.6582.4290.8500.0.3.922
41-50 years ago0.6582.7271.3400.0.4.520
over 50 years ago0.21005.6182.6270.8509.314
total11.81228.678.9141.83351.13
Central Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago2.0312.5271.0440.4715.817
11-20 years ago1.2402.2270.7500.21004.419
21-30 years ago0.8471.4370.8500.21003.223
31-40 years ago0.4710.21000.8490.21001.535
41-50 years ago0.0.1.0450.21000.4711.535
over 50 years ago0.21002.3281.1410.8504.419
total4.5189.7114.6192.12920.95
Northeastern Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago3.4233.9220.6570.9508.814
11-20 years ago2.0302.7250.8500.21005.817
21-30 years ago1.0451.6350.4710.8503.722
31-40 years ago0.21001.2360.31000.21001.831
41-50 years ago0.0.0.4720.6590.4721.537
over 50 years ago0.6592.0301.9330.6585.119
total7.31511.8104.5203.02526.65
Southwestern Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago10.4139.0142.3290.47122.19
11-20 years ago5.1196.6171.9310.47114.111
21-30 years ago3.2243.4241.6350.21008.315
31-40 years ago2.8272.4291.0450.4716.517
41-50 years ago1.7334.9200.8500.6588.015
over 50 years ago4.82019.6912.6123.02640.06
total28.0745.8520.395.02099.02
Southeastern Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago12.31212.6123.2250.85028.98
11-20 years ago7.41614.0113.7231.04526.08
21-30 years ago3.8239.2143.2241.63517.910
31-40 years ago2.0326.3172.3291.63512.212
41-50 years ago0.8503.5232.7271.0458.015
over 50 years ago2.32911.4136.3178.31528.48
total28.6757.0521.4914.311121.32
Southern Alpsn/a0.0.0.0.0.0.0.0.0.0.
less than 10 years ago6.0187.0171.6351.24115.811
11-20 years ago2.0324.4210.6581.8338.915
21-30 years ago2.0312.9271.8331.4388.015
31-40 years ago1.4382.4292.1302.0318.015
41-50 years ago0.6585.7181.8332.92611.013
over 50 years ago3.62321.4916.51029.9771.44
total15.61143.8624.4839.36123.12
Switzerlandn/a0.4710.0.0.0.0.0.0.471
less than 10 years ago284.12151.7322.195.419463.42
11-20 years ago87.8581.7515.0114.721189.23
21-30 years ago33.3844.7711.8135.12094.94
31-40 years ago17.81131.089.3155.51963.65
41-50 years ago9.51427.6810.9135.51953.56
over 50 years ago17.91080.1549.6644.96192.43
total450.81416.72118.7471.151057.41
© WSL, Swiss National Forest Inventory, 21.06.2020 #817003/283334
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