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NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest 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
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.1201.0450.21000.21000.4710.21007.117
21-40%5.8192.5294.0223.0264.6210.47120.210
41-60%20.8915.3117.5166.31814.0123.12567.15
61-80%62.3527.0812.6128.51520.495.319136.24
over 80%262.0235.6725.386.61711.21311.113351.82
total356.0181.4449.7524.5850.6520.19582.41
inside perimeter0-20%0.0.0.8500.21000.0.0.0.0.0.1.045
21-40%0.21001.0450.8501.0451.2410.4714.621
41-60%0.21003.4240.6585.3194.6212.03216.011
61-80%1.0455.8183.7237.9156.8173.72329.08
over 80%3.3248.7158.7158.6144.3215.91839.67
total4.72019.81014.01122.9817.01011.91290.24
outside perimeter0-20%0.21001.4371.0440.21000.21000.6583.723
21-40%0.0.4.3211.6352.5293.9231.43813.612
41-60%0.8508.0154.2229.91416.2105.91844.96
61-80%7.11725.7811.01319.7919.6921.19104.24
over 80%43.3645.9633.7619.3913.91162.24218.33
total51.4685.3451.5551.6553.7591.13384.62
total0-20%5.3193.3241.4370.4710.6580.85011.813
21-40%6.0187.8166.4176.4179.7142.13038.47
41-60%21.8926.7812.31221.5934.8711.013128.04
61-80%70.4558.5527.4836.1646.9530.17269.32
over 80%308.6190.2367.7434.6629.4779.13609.61
total412.11186.41115.2299.02121.32123.121057.11
© WSL, Swiss National Forest Inventory, 18.06.2020 #863474/329805
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.1201.0450.21000.8501.0450.6588.715
21-40%7.0174.1225.8185.4197.2164.12233.68
41-60%22.1919.0109.91410.21418.4107.41687.05
61-80%65.0530.4815.11110.31323.697.316151.73
over 80%267.2238.2726.487.61513.21212.612365.22
total366.3192.7457.4534.3763.5532.07646.31
inside perimeter0-20%0.0.0.8500.21000.0.0.0.0.0.1.045
21-40%0.21001.0450.8501.0451.2410.6584.820
41-60%0.21003.4240.8505.7185.8182.72718.610
61-80%1.0456.0183.9228.1157.2164.12230.48
over 80%3.3249.1148.9148.8144.7206.11841.07
total4.72020.4914.61123.7819.01013.41195.84
outside perimeter0-20%0.21001.7351.0440.4710.4711.0454.721
21-40%0.0.4.5212.0313.1265.5193.12518.210
41-60%0.8508.4155.81810.61317.8108.61552.16
61-80%7.11726.7811.81220.9921.7924.48112.64
over 80%43.7647.1634.9620.7914.91167.54228.82
total51.8688.3455.5555.8460.35104.53416.32
total0-20%5.3193.5241.4371.2411.4381.63514.412
21-40%7.2169.6148.6159.51413.9117.81556.66
41-60%23.1930.8716.51026.6842.1618.710157.73
61-80%73.0563.1530.8739.4652.6535.77294.72
over 80%314.2194.5370.2337.1632.8786.13634.91
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #863475/329806
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.1201.2410.4710.8501.0451.2419.714
21-40%7.0174.9206.8176.0188.6156.11839.57
41-60%22.3921.4911.31311.61322.5910.61399.64
61-80%65.0531.2818.71012.01330.5811.013168.33
over 80%267.2239.3628.6710.11317.91015.911378.82
total366.5197.9465.8540.4680.4444.96696.01
inside perimeter0-20%0.0.0.8500.21000.0.0.21000.0.1.241
21-40%0.21001.0450.8501.2411.2410.6585.020
41-60%0.21003.4240.8505.9185.8182.92619.010
61-80%1.0456.0184.1228.1157.4164.32131.08
over 80%3.3249.1149.1149.1144.9206.11841.67
total4.72020.4915.01124.3819.6913.81197.84
outside perimeter0-20%0.21001.7351.0440.4710.4711.4385.120
21-40%0.0.4.5212.0313.1265.5193.72318.810
41-60%0.8508.6156.21710.61319.0109.41454.76
61-80%7.11726.7812.41220.9921.9925.78114.84
over 80%43.7647.1634.9620.7915.11170.84232.32
total51.8688.5456.5555.8461.95111.03425.62
total0-20%5.3193.7231.6351.2411.6352.62816.011
21-40%7.21610.4149.61410.31415.31110.41363.35
41-60%23.3933.3718.31028.2847.3622.99173.33
61-80%73.0563.9535.2741.0659.9541.06314.12
over 80%314.2195.5372.6339.8637.8692.83652.71
total423.01206.81137.32120.52162.02169.721219.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #863476/329807
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%4.1215.0192.3281.3382.5272.72617.710
21-40%6.4167.1166.81610.2139.8137.21547.56
41-60%15.51016.51010.2139.51318.5911.31281.65
61-80%34.6722.0917.41011.71224.2813.811123.74
over 80%311.1152.6535.0613.81129.6718.79460.91
total371.71103.2371.8446.4584.6453.75731.51
inside perimeter0-20%0.0.0.9440.4710.4710.21000.5582.328
21-40%0.0.1.1410.5581.9301.1410.9455.518
41-60%0.21001.9301.2384.2204.0211.43512.912
61-80%0.7504.4203.7225.4178.8144.12027.18
over 80%3.82213.91110.51213.2117.3157.51556.35
total4.71922.2916.31025.1721.3814.510104.14
outside perimeter0-20%0.0.2.8251.8311.1411.8313.62211.113
21-40%0.21002.7262.0303.4236.6163.52218.310
41-60%1.1418.5145.8178.31414.91110.51349.16
61-80%4.81921.6910.01314.81018.5921.2990.84
over 80%46.4658.7543.0528.4722.4880.43279.32
total52.5594.3362.5456.0464.24119.22448.61
total0-20%4.1218.7144.5202.7264.5206.81631.17
21-40%6.61610.8129.31315.51017.51011.71271.45
41-60%16.71026.9817.21022.1837.5623.28143.73
61-80%40.1648.0531.1731.9751.4539.16241.62
over 80%361.41125.3288.5355.4459.34106.63796.51
total428.91219.71150.62127.52170.12187.411284.20
© WSL, Swiss National Forest Inventory, 18.06.2020 #863477/329808
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.8331.0451.0451.0452.23012.313
21-40%7.0175.3197.0176.2188.6156.91741.07
41-60%22.5922.6912.21212.81223.4912.412105.94
61-80%65.1533.0719.31013.51231.9713.712176.63
over 80%268.5240.9629.8710.41318.11018.310386.12
total368.51103.6469.3444.0683.0453.55721.91
inside perimeter0-20%0.0.0.8500.21000.0.0.21000.0.1.241
21-40%0.21001.0450.8501.2411.4380.6585.220
41-60%0.21003.4240.8506.1186.0182.92619.410
61-80%1.0456.0184.3218.5147.9154.52132.28
over 80%3.3249.8149.9149.2144.9206.11843.17
total4.72021.0916.01125.1820.4914.011101.24
outside perimeter0-20%0.21001.7351.0440.8500.6581.6355.918
21-40%0.0.4.5212.0313.1265.9183.92219.410
41-60%0.8509.4146.81711.01319.61010.91358.66
61-80%7.11726.9813.11221.5922.3928.18118.94
over 80%44.1648.6638.8620.7916.21074.04242.32
total52.2691.0461.6457.2464.64118.52445.12
total0-20%5.5194.3212.2301.8331.8333.82319.410
21-40%7.21610.8139.81410.51415.91111.41365.65
41-60%23.5935.4719.7930.0749.0626.28183.83
61-80%73.2565.9536.7743.6662.1546.26327.72
over 80%315.9199.3378.4340.4639.2698.33671.61
total425.31215.61146.92126.32168.02186.011268.10
© WSL, Swiss National Forest Inventory, 18.06.2020 #863478/329809
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.4380.21001.0451.6351.24110.714
21-40%7.2165.5196.8177.2179.9145.11941.77
41-60%22.9920.4911.31312.41219.4108.61595.04
61-80%66.5531.8716.71011.11324.088.615158.83
over 80%269.1239.7627.288.41514.61114.011373.02
total371.1198.8462.2540.2669.5437.57679.31
inside perimeter0-20%0.0.0.8500.21000.0.0.0.0.0.1.045
21-40%0.21001.0450.8501.2411.2410.6585.020
41-60%0.21003.6230.8505.7186.0182.72719.010
61-80%1.0456.0184.3218.1157.4164.12231.08
over 80%3.3249.1149.1148.8144.7206.11841.27
total4.72020.6915.21123.9819.4913.41197.24
outside perimeter0-20%0.21001.7351.0440.6580.4711.0454.920
21-40%0.0.4.5212.0313.5245.9183.32419.210
41-60%0.8508.6156.21710.91318.4109.21454.16
61-80%7.11726.9812.01221.3922.9925.58115.74
over 80%44.1647.8635.7620.7915.01068.34231.62
total52.2689.4456.9557.0462.74107.33425.52
total0-20%5.5193.9221.4371.6352.0322.23016.611
21-40%7.41611.0139.61411.91317.0109.01465.95
41-60%23.9932.6718.31029.0843.9620.59168.13
61-80%74.6564.7533.0740.6654.4538.26305.52
over 80%316.5196.6372.0337.9634.4688.33645.71
total427.91208.71134.32121.12151.62158.321201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863479/329810
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.3191.6350.6581.0451.6352.23012.313
21-40%7.2166.5179.0158.41512.3137.31650.86
41-60%23.1922.8913.21213.81224.4911.413108.64
61-80%66.5532.6720.3912.81230.9812.013175.13
over 80%269.1240.7629.4710.51318.81016.511385.02
total371.31104.2472.4446.5688.0449.46731.81
inside perimeter0-20%0.0.0.8500.21000.0.0.21000.0.1.241
21-40%0.21001.0450.8501.2411.2410.6585.020
41-60%0.21003.6230.8505.9186.0182.92619.410
61-80%1.0456.0184.5218.1157.7164.32131.68
over 80%3.3249.1149.3149.1144.9206.11841.87
total4.72020.6915.61124.3820.0913.81199.04
outside perimeter0-20%0.21001.9331.0440.6580.6581.4385.719
21-40%0.0.4.5212.0313.5245.9183.72319.610
41-60%0.8508.8156.21710.91319.41010.11456.36
61-80%7.11726.9812.41221.3923.1826.58117.34
over 80%44.1647.8635.7620.7915.41071.64235.32
total52.2689.8457.3557.0464.54113.43434.12
total0-20%5.5194.3211.8331.6352.4293.62319.310
21-40%7.41612.01311.81313.11219.41011.61375.45
41-60%24.1935.2720.1930.6749.9624.58184.33
61-80%74.6565.5537.2742.2661.6542.86324.02
over 80%316.5197.6374.4340.2639.2694.23662.01
total428.11214.51145.32127.82172.52176.621264.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863480/329811
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
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
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%7.9150.21001.0459.114
61-80%17.2100.8503.12521.19
over 80%89.433.62323.08116.02
total118.624.62027.27150.51
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%39.930.0.4.12244.02
total42.430.0.4.12246.62
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.7230.0.0.7584.321
over 80%35.940.0.4.32140.24
total44.130.0.5.01949.12
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.0450.0.0.21001.240
61-80%5.3190.0.0.5585.818
over 80%51.830.0.8.71460.52
total59.730.0.9.41369.11
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%5.7180.0.0.3716.117
over 80%91.720.0.5.11996.82
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.6700.31000.8581.639
21-40%0.6700.31000.31001.148
41-60%3.3260.7503.7247.715
61-80%3.9220.8504.4209.114
over 80%9.2132.42712.21123.86
total17.694.52021.3843.33
Central Pre-Alps0-20%0.6580.0.0.6571.140
21-40%2.7260.4710.8503.822
41-60%5.5180.7501.5357.715
61-80%10.9130.9448.11519.99
over 80%31.673.62431.7766.83
total51.255.61842.6599.42
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.0.9492.529
41-60%3.5240.4712.6286.517
61-80%8.0150.21005.02013.211
over 80%21.982.13024.4748.54
total36.162.72633.5672.32
Northwestern Alps0-20%1.4380.6571.0443.025
21-40%3.2250.4711.0444.720
41-60%4.8200.4713.1258.315
61-80%5.0202.3307.01614.311
over 80%9.3146.71612.61128.76
total23.7810.41324.8758.93
Central Alps0-20%0.6580.21000.4711.241
21-40%2.1300.0.0.0.2.130
41-60%2.0300.4710.8503.224
61-80%2.7251.5351.4375.717
over 80%4.6183.1245.51713.28
total12.1115.2188.11325.44
Northeastern Alps0-20%0.0.0.0.0.9430.943
21-40%1.4380.4710.8512.627
41-60%1.7330.5581.9314.120
61-80%2.7271.4382.7266.816
over 80%3.7214.3217.51415.48
total9.5136.61613.81029.85
Southwestern Alps0-20%1.0450.21001.0452.230
21-40%8.2151.0453.02612.213
41-60%7.8164.3218.31520.59
61-80%7.9165.61814.91128.47
over 80%9.31412.61228.6750.55
total34.3723.7855.84113.82
Southeastern Alps0-20%2.4290.21001.2413.823
21-40%7.3161.2416.81715.411
41-60%13.9123.22513.71230.87
61-80%17.8107.91517.61043.46
over 80%22.196.41721.0949.55
total63.5519.01060.35142.82
Southern Alps0-20%1.0450.4712.1313.424
21-40%5.1190.8503.5239.314
41-60%6.0181.4388.11515.511
61-80%8.2153.82219.11031.27
over 80%11.7137.11671.7490.43
total32.0713.411104.53150.02
Switzerland0-20%12.4131.9338.51522.89
21-40%38.874.52117.31160.66
41-60%63.1512.21344.96120.24
61-80%100.5425.3984.95210.73
over 80%432.1151.86260.42744.31
total646.9195.74415.921158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863481/329812
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
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
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.1440.0.0.0.1.144
21-40%1.7350.0.0.21001.933
41-60%6.9160.21001.0458.115
61-80%15.8110.8503.12519.79
over 80%87.833.62322.68114.02
total113.324.62026.88144.81
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%39.030.0.4.12243.22
total41.630.0.4.12245.72
Western Plateau0-20%0.4700.0.0.0.0.470
21-40%0.8490.0.0.0.0.849
41-60%2.7270.0.0.0.2.727
61-80%3.5240.0.0.7584.122
over 80%34.750.0.4.32139.04
total42.030.0.5.01947.02
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.0450.0.0.21001.240
61-80%5.3190.0.0.5585.818
over 80%51.630.0.8.71460.32
total59.530.0.9.41369.01
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%5.6180.0.0.3715.917
over 80%89.920.0.5.11995.02
total100.220.0.5.519105.61
Western Pre-Alps0-20%0.31000.31000.6701.148
21-40%0.6700.31000.31001.148
41-60%2.6290.7503.4256.817
61-80%3.4240.8504.1218.314
over 80%8.8132.22812.01123.06
total15.6104.32120.4840.33
Central Pre-Alps0-20%0.4710.0.0.4700.850
21-40%2.1300.4710.8503.324
41-60%4.3200.7501.5356.516
61-80%10.1130.9447.71518.89
over 80%31.073.62431.3765.83
total47.955.61841.6595.12
Eastern Pre-Alps0-20%0.8500.0.0.7571.537
21-40%1.0450.0.0.7571.735
41-60%3.3250.4712.4296.018
61-80%6.8170.21004.82011.712
over 80%21.082.13023.7746.84
total32.962.72632.1667.73
Northwestern Alps0-20%0.8500.6571.0442.428
21-40%1.4380.4711.0442.926
41-60%3.3250.4712.7276.417
61-80%4.1222.3306.61713.111
over 80%7.9156.31712.21126.46
total17.61010.01323.5851.13
Central Alps0-20%0.21000.0.0.21000.471
21-40%1.5340.0.0.0.1.534
41-60%1.6340.4710.4712.428
61-80%2.4281.3371.0444.719
over 80%3.8203.1245.11811.99
total9.5124.8186.71520.95
Northeastern Alps0-20%0.0.0.0.0.9430.943
21-40%1.0450.4710.6592.032
41-60%1.3380.4711.3383.024
61-80%1.9331.4382.3295.618
over 80%3.3224.3217.51415.18
total7.6156.41612.71026.65
Southwestern Alps0-20%0.6580.21000.8501.635
21-40%4.2221.0452.6287.716
41-60%5.5194.1227.51617.210
61-80%6.3175.61813.51125.48
over 80%7.91511.91227.2747.15
total24.5822.9851.6599.02
Southeastern Alps0-20%1.8330.21001.2413.225
21-40%3.7230.8505.0209.514
41-60%10.4133.22511.61325.28
61-80%14.2116.71715.81136.76
over 80%20.696.01820.1946.75
total50.6517.01053.75121.32
Southern Alps0-20%0.4710.21001.3411.933
21-40%1.0450.4711.3382.727
41-60%2.1300.8504.8207.715
61-80%6.3173.82216.01126.18
over 80%10.3146.71767.6484.63
total20.1911.91291.13123.12
Switzerland0-20%8.6151.5386.91717.011
21-40%22.0103.72412.51338.17
41-60%47.8611.31337.0796.04
61-80%87.0523.9976.55187.33
over 80%417.7149.86251.42718.91
total583.0190.14384.321057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #863482/329813
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
avalanches SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
n/a0-20%5.5192.2301.0451.2411.6353.22514.712
21-40%7.4167.1179.4149.21512.6128.31554.16
41-60%23.3924.8914.41116.21125.8813.911118.54
61-80%66.9534.4721.5914.71132.3714.911184.83
over 80%270.5242.6631.0711.01319.21018.310392.62
total373.71111.1377.3452.5591.6458.75764.71
inside perimeter0-20%0.0.0.8500.21000.0.0.21000.0.1.241
21-40%0.21001.0450.8501.2411.4380.6585.220
41-60%0.21003.6230.8506.1186.4172.92620.010
61-80%1.0456.0184.5218.5147.9154.52132.48
over 80%3.5249.8149.9149.2144.9206.11843.37
total4.92021.2916.21025.1820.8914.011102.24
outside perimeter0-20%0.21001.9331.0440.8500.8501.6356.318
21-40%0.0.4.5212.0313.7236.1184.12220.410
41-60%0.8509.4146.81711.31320.0911.31359.66
61-80%7.11727.1813.11221.7923.5828.38120.74
over 80%44.3648.6638.8620.7916.41074.24242.92
total52.3691.4461.6458.2466.84119.42449.92
total0-20%5.7194.9202.2302.0322.6284.82022.29
21-40%7.61612.61212.21214.21220.21013.01279.75
41-60%24.3937.8722.0933.6752.2528.28198.13
61-80%75.0567.5539.1645.0563.6547.66337.92
over 80%318.21100.9379.6341.0640.6698.53678.91
total430.91223.71155.12135.82179.22192.111316.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #863483/329814
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%8.8140.21001.0459.913
61-80%17.6100.8503.32421.79
over 80%89.833.62323.28116.62
total120.224.62027.67152.51
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%39.930.0.4.12244.02
total42.430.0.4.12246.62
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.9220.0.0.7584.621
over 80%36.340.0.4.52040.83
total44.730.0.5.21949.92
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.2400.0.0.21001.537
61-80%5.3190.0.0.5585.818
over 80%52.830.0.8.71461.52
total60.920.0.9.41370.31
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%6.1170.0.0.3716.416
over 80%91.820.0.5.11997.02
total102.710.0.5.519108.11
Western Pre-Alps0-20%0.8580.31000.8581.837
21-40%0.6700.31000.31001.148
41-60%3.5250.7503.9238.215
61-80%4.1220.8504.4209.313
over 80%9.2132.42712.41124.06
total18.294.52021.7844.43
Central Pre-Alps0-20%0.6580.0.0.6571.140
21-40%2.7260.4710.8503.822
41-60%5.7180.7501.5357.915
61-80%10.9130.9448.31520.29
over 80%31.873.62432.2767.63
total51.655.61843.45100.62
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.1.1442.827
41-60%3.5240.4712.6286.517
61-80%8.2150.21005.41913.811
over 80%22.182.13024.8749.04
total36.662.72634.5673.82
Northwestern Alps0-20%2.0320.6571.0443.623
21-40%3.4240.4711.0444.920
41-60%5.0200.4713.1258.515
61-80%5.0202.3307.21614.511
over 80%9.5136.91613.01129.46
total24.9810.61325.3760.93
Central Alps0-20%0.6580.21000.4711.241
21-40%2.1300.0.0.0.2.130
41-60%2.2290.4710.8503.423
61-80%2.9251.5351.4375.917
over 80%4.8183.1245.51713.48
total12.7105.2188.11326.04
Northeastern Alps0-20%0.0.0.0.0.9430.943
21-40%1.4380.4710.8512.627
41-60%1.9310.5581.9314.320
61-80%2.7271.4382.7266.816
over 80%3.9214.3217.91316.07
total9.8136.61614.2930.64
Southwestern Alps0-20%1.0450.21001.0452.230
21-40%8.6151.0453.02612.612
41-60%8.0164.3218.31520.79
61-80%8.1155.61814.91128.67
over 80%9.51412.61228.6750.75
total35.3723.7855.84114.82
Southeastern Alps0-20%2.6280.21001.2414.022
21-40%7.5161.2416.81715.611
41-60%13.9123.22513.81231.07
61-80%18.4107.91517.81044.26
over 80%22.796.81621.4950.95
total65.1519.4961.15145.62
Southern Alps0-20%1.2410.4712.1313.623
21-40%5.3190.8503.5239.514
41-60%6.6171.6358.51516.710
61-80%8.2153.82219.5931.67
over 80%12.2127.21672.7492.23
total33.6713.811106.33153.72
Switzerland0-20%13.6121.9338.51524.09
21-40%39.874.52117.51161.86
41-60%65.9512.41245.76124.14
61-80%102.9425.3986.55214.73
over 80%436.4152.66264.12753.11
total658.7196.74422.321177.71
© WSL, Swiss National Forest Inventory, 18.06.2020 #863484/329815
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI3
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3370.0.0.0.1.337
21-40%2.8250.0.0.21003.025
41-60%8.4140.21000.9459.513
61-80%17.990.7503.22321.88
over 80%90.433.62222.88116.82
total120.824.52027.07152.31
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.4710.0.0.0.0.471
41-60%0.6580.0.0.0.0.658
61-80%1.4360.0.0.21001.634
over 80%39.530.0.4.12143.72
total42.230.0.4.32046.52
Western Plateau0-20%0.9440.0.0.0.0.944
21-40%0.8500.0.0.0.0.850
41-60%2.8250.0.0.0.2.825
61-80%4.0210.0.0.6584.620
over 80%36.140.0.4.52040.63
total44.530.0.5.01849.62
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%0.9440.0.0.0.0.944
41-60%1.3370.0.0.21001.535
61-80%5.4170.0.0.5585.916
over 80%52.830.21008.91361.92
total60.920.21009.61270.71
Eastern Plateau0-20%1.1400.0.0.0.1.140
21-40%1.7320.0.0.0.1.732
41-60%2.2280.0.0.0.2.228
61-80%6.0160.0.0.3716.316
over 80%90.820.0.5.31896.12
total101.810.0.5.617107.51
Western Pre-Alps0-20%1.1440.5701.1442.626
21-40%0.6580.21000.5591.437
41-60%3.4230.6503.6227.614
61-80%3.7210.9454.9189.512
over 80%8.6122.42612.21023.26
total17.584.61922.3744.33
Central Pre-Alps0-20%0.7500.0.0.5571.237
21-40%2.7250.3710.9454.020
41-60%5.5170.7501.6317.814
61-80%10.5121.0418.71420.28
over 80%30.873.92232.4667.13
total50.156.01744.15100.22
Eastern Pre-Alps0-20%0.9450.0.0.6571.535
21-40%1.7330.0.1.0442.726
41-60%3.6220.3712.3286.216
61-80%8.5140.3705.41814.210
over 80%21.182.02926.0649.14
total35.862.62535.3573.72
Northwestern Alps0-20%1.8320.5571.2373.422
21-40%3.2230.5581.0404.719
41-60%4.8190.4712.9258.014
61-80%5.0182.3287.41514.710
over 80%8.8137.31513.11029.25
total23.4811.01225.6760.03
Central Alps0-20%0.5580.21000.4711.141
21-40%2.3270.21000.0.2.526
41-60%2.0290.4710.8503.123
61-80%2.9241.8311.5356.116
over 80%5.1173.0235.51613.78
total12.8105.5178.11326.44
Northeastern Alps0-20%0.0.0.0.0.8430.843
21-40%1.8310.3710.7502.824
41-60%1.9290.5581.9304.219
61-80%3.0241.2382.4276.715
over 80%4.2194.3197.71316.27
total10.8116.21613.6930.74
Southwestern Alps0-20%1.1410.21000.9452.229
21-40%8.9141.4353.02413.311
41-60%7.8154.1217.81519.69
61-80%8.6145.41714.51028.57
over 80%10.41212.91127.8751.14
total36.8623.9854.04114.72
Southeastern Alps0-20%2.3280.21001.6334.121
21-40%7.7151.1416.41615.210
41-60%14.5113.42313.51131.37
61-80%18.0108.01517.21043.26
over 80%22.687.11521.6851.35
total65.1419.7960.34145.12
Southern Alps0-20%1.1410.4711.8313.323
21-40%5.1180.9453.2239.213
41-60%6.7161.4358.61416.710
61-80%7.9154.12018.2930.37
over 80%12.0127.41574.2393.53
total32.8714.111106.03152.92
Switzerland0-20%13.4121.8328.91424.18
21-40%40.575.01916.91062.55
41-60%65.4511.81243.96121.14
61-80%102.8425.7884.94213.43
over 80%433.3154.05266.12753.51
total655.5198.44420.721174.60
© WSL, Swiss National Forest Inventory, 18.06.2020 #863485/329816
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
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
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%7.9150.21001.0459.114
61-80%17.2100.8503.12521.19
over 80%89.433.62323.08116.02
total118.624.62027.27150.51
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%39.930.0.4.12244.02
total42.430.0.4.12246.62
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.7230.0.0.7584.321
over 80%35.940.0.4.32140.24
total44.130.0.5.01949.12
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.2400.0.0.21001.537
61-80%5.3190.0.0.5585.818
over 80%51.830.0.8.71460.52
total59.920.0.9.41369.31
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%5.7180.0.0.3716.117
over 80%91.720.0.5.11996.82
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.8580.31000.8581.837
21-40%0.6700.31000.31001.148
41-60%3.7240.7503.7248.115
61-80%4.4210.8504.6209.813
over 80%9.2132.42712.21123.86
total18.694.52021.5844.63
Central Pre-Alps0-20%0.6580.0.0.6571.140
21-40%2.7260.4710.8503.822
41-60%5.7180.7501.5357.915
61-80%10.9130.9448.11519.99
over 80%32.273.62431.7767.43
total52.055.61842.65100.22
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.0.9492.529
41-60%3.9230.4712.6286.917
61-80%8.2150.21005.21913.611
over 80%21.982.13024.4748.54
total36.762.72633.8673.22
Northwestern Alps0-20%1.8330.6571.0443.424
21-40%3.6230.4711.0445.119
41-60%6.4180.4713.1259.914
61-80%5.4192.3307.01614.711
over 80%9.9136.71612.61129.36
total27.1810.41324.8762.33
Central Alps0-20%1.2410.4700.4712.031
21-40%2.1300.0.0.21002.328
41-60%2.2290.4711.2413.822
61-80%3.5231.5351.4376.516
over 80%6.0163.3235.71715.08
total15.1105.6178.91329.64
Northeastern Alps0-20%0.4710.0.0.9431.336
21-40%1.8330.4710.8513.025
41-60%2.8260.5581.9315.218
61-80%3.6231.4382.7267.715
over 80%5.6174.3217.51417.38
total14.1106.61613.81034.54
Southwestern Alps0-20%1.0450.21001.0452.230
21-40%9.0151.4383.02613.412
41-60%9.0154.3218.31521.79
61-80%9.8145.61814.91130.37
over 80%11.61312.81128.6753.05
total40.4624.3855.84120.52
Southeastern Alps0-20%2.4290.21001.4384.022
21-40%8.9151.2416.81717.010
41-60%17.0113.62314.31134.87
61-80%23.698.21517.81049.66
over 80%28.586.41721.6956.65
total80.4419.6961.95162.02
Southern Alps0-20%1.6350.6582.4294.621
21-40%6.1180.8503.92210.813
41-60%9.2141.4388.91419.510
61-80%11.4133.82220.1935.47
over 80%16.6117.21675.6499.53
total44.9613.811111.03169.72
Switzerland0-20%14.6122.3309.11525.99
21-40%43.174.92017.91065.85
41-60%74.5512.61246.76133.84
61-80%114.2425.5986.55226.23
over 80%450.2152.46265.12767.71
total696.6197.74425.221219.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863486/329817
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: terrestrial grid NFI3
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3370.0.0.0.1.337
21-40%2.8250.0.0.21003.025
41-60%8.4140.21000.9459.513
61-80%17.990.7503.22321.88
over 80%90.433.62222.88116.82
total120.824.52027.07152.31
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.4710.0.0.0.0.471
41-60%0.6580.0.0.0.0.658
61-80%1.4360.0.0.21001.634
over 80%39.530.0.4.12143.72
total42.230.0.4.32046.52
Western Plateau0-20%0.9440.0.0.0.0.944
21-40%0.8500.0.0.0.0.850
41-60%2.8250.0.0.0.2.825
61-80%4.0210.0.0.6584.620
over 80%36.140.0.4.52040.63
total44.530.0.5.01849.62
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%0.9440.0.0.0.0.944
41-60%1.3370.0.0.21001.535
61-80%5.4170.0.0.5585.916
over 80%52.830.21008.91361.92
total60.920.21009.61270.71
Eastern Plateau0-20%1.1400.0.0.0.1.140
21-40%1.7320.0.0.0.1.732
41-60%2.2280.0.0.0.2.228
61-80%6.0160.0.0.3716.316
over 80%90.820.0.5.31896.12
total101.810.0.5.617107.51
Western Pre-Alps0-20%1.1440.5701.1442.626
21-40%0.6580.21000.5591.437
41-60%3.8220.6503.6228.014
61-80%4.1200.9455.11810.112
over 80%8.6122.42612.21023.26
total18.284.61922.5745.33
Central Pre-Alps0-20%0.7500.0.0.5571.237
21-40%2.7250.3710.9454.020
41-60%5.6170.7501.6317.914
61-80%10.8121.0418.71420.68
over 80%31.373.92232.4667.63
total51.256.01744.15101.22
Eastern Pre-Alps0-20%0.9450.0.0.6571.535
21-40%1.7330.0.1.0442.726
41-60%4.0210.3712.3286.616
61-80%8.7140.3705.61714.610
over 80%21.182.02926.0649.14
total36.362.62535.5574.52
Northwestern Alps0-20%1.9300.5571.2373.621
21-40%3.5220.5581.0405.118
41-60%6.2170.4712.9259.513
61-80%5.5172.3287.41515.210
over 80%9.8137.31513.11030.25
total27.0711.01225.6763.53
Central Alps0-20%1.1410.4700.4711.831
21-40%2.3270.21000.21002.725
41-60%2.3270.4711.1413.821
61-80%4.3201.8311.5357.514
over 80%6.4153.2225.71615.38
total16.495.9168.81231.04
Northeastern Alps0-20%0.3710.0.0.8431.236
21-40%2.1290.3710.7503.223
41-60%3.0240.5581.9305.317
61-80%3.9211.2382.6267.714
over 80%6.2164.3197.71318.27
total15.696.21613.8935.64
Southwestern Alps0-20%1.1410.21000.9452.229
21-40%9.4141.8323.02414.211
41-60%8.8144.1217.81520.79
61-80%10.6135.41714.51030.57
over 80%12.81113.11127.8753.64
total42.7624.5754.04121.22
Southeastern Alps0-20%2.3280.21001.8314.320
21-40%9.5141.1416.41617.010
41-60%17.5103.92114.21135.57
61-80%23.788.21417.41049.35
over 80%29.277.11522.1858.44
total82.2420.4961.94164.52
Southern Alps0-20%1.6330.5582.2294.320
21-40%6.0170.9453.52210.413
41-60%9.4131.4358.91419.79
61-80%11.1124.12019.3934.57
over 80%16.8107.51577.73102.03
total44.9614.510111.62171.01
Switzerland0-20%15.0112.2299.41426.68
21-40%44.565.41817.51067.35
41-60%75.9512.31245.36133.63
61-80%117.4425.9886.74230.03
over 80%451.9154.65270.32776.81
total704.71100.44429.221234.31
© WSL, Swiss National Forest Inventory, 18.06.2020 #863487/329818
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3370.0.0.0.1.337
21-40%2.8250.0.0.21003.025
41-60%8.6140.21000.9459.713
61-80%17.990.7503.22321.88
over 80%90.933.62222.98117.52
total121.624.52027.27153.21
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.4710.0.0.0.0.471
41-60%0.6580.0.0.0.0.658
61-80%1.4360.0.0.21001.634
over 80%39.730.0.4.12143.92
total42.430.0.4.32046.72
Western Plateau0-20%0.9440.0.0.0.0.944
21-40%0.8500.0.0.0.0.850
41-60%2.8250.0.0.0.2.825
61-80%4.1210.0.0.6584.719
over 80%36.740.0.4.52041.23
total45.330.0.5.01850.32
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%0.9440.0.0.0.0.944
41-60%1.5350.0.0.21001.633
61-80%5.4170.0.0.5585.916
over 80%53.030.21009.11362.32
total61.320.21009.81271.21
Eastern Plateau0-20%1.1400.0.0.0.1.140
21-40%1.7320.0.0.0.1.732
41-60%2.2280.0.0.0.2.228
61-80%6.0160.0.0.3716.316
over 80%90.820.0.5.31896.12
total101.810.0.5.617107.51
Western Pre-Alps0-20%1.6350.5701.2403.323
21-40%0.6580.21000.5591.437
41-60%3.8220.6503.6228.014
61-80%4.1200.9455.11810.112
over 80%9.0122.42612.21023.65
total19.184.61922.6746.32
Central Pre-Alps0-20%1.0410.0.0.5571.533
21-40%2.9240.3711.1414.319
41-60%5.8170.8451.8308.513
61-80%11.2121.0418.71420.98
over 80%32.463.92233.3669.63
total53.446.11745.45104.81
Eastern Pre-Alps0-20%0.9450.0.0.6571.535
21-40%1.8320.0.1.0442.926
41-60%4.4200.3712.3287.015
61-80%8.7140.3705.61714.610
over 80%21.382.42727.0650.63
total37.163.02336.4576.52
Northwestern Alps0-20%2.5270.5571.2374.120
21-40%3.5220.5581.0405.118
41-60%7.1150.4713.22310.712
61-80%6.4162.5267.91416.89
over 80%11.1127.61413.31032.15
total30.6711.51126.6668.72
Central Alps0-20%1.1410.4700.4711.831
21-40%2.9240.21000.4703.422
41-60%2.5260.4711.5354.420
61-80%4.9191.8311.5358.114
over 80%7.1153.8206.21517.07
total18.486.4159.91134.73
Northeastern Alps0-20%0.3710.0.0.8431.236
21-40%2.1290.3710.7503.223
41-60%3.3220.5582.0285.816
61-80%3.9211.6333.1248.613
over 80%6.5154.5199.61120.66
total16.296.91516.2839.33
Southwestern Alps0-20%1.3380.4711.1412.726
21-40%10.2131.9303.42315.510
41-60%9.5134.2208.31422.18
61-80%11.7125.41714.81031.97
over 80%13.81113.21128.4755.44
total46.4525.1756.04127.52
Southeastern Alps0-20%2.5270.21001.8314.520
21-40%9.8131.1416.61617.510
41-60%18.594.02114.91137.56
61-80%24.288.81418.5951.45
over 80%29.677.31522.4859.34
total84.6421.3864.24170.12
Southern Alps0-20%2.7260.5583.6226.816
21-40%7.2150.9453.52211.712
41-60%11.3121.43510.51323.28
61-80%13.8114.12021.2939.16
over 80%18.797.51580.43106.63
total53.7514.510119.22187.41
Switzerland0-20%17.8102.42811.21331.37
21-40%47.665.51818.41071.55
41-60%81.9512.81249.26143.93
61-80%123.6427.1891.04241.72
over 80%460.9156.45278.62795.91
total731.81104.24448.311284.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #863488/329819
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%8.8140.21001.0459.913
61-80%17.6100.8503.32421.79
over 80%89.833.62323.28116.62
total120.224.62027.67152.51
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%39.930.0.4.12244.02
total42.430.0.4.12246.62
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.9220.0.0.7584.621
over 80%36.340.0.4.52040.83
total44.730.0.5.21949.92
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.2400.0.0.21001.537
61-80%5.3190.0.0.5585.818
over 80%52.830.0.8.71461.52
total60.920.0.9.41370.31
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%6.1170.0.0.3716.416
over 80%91.820.0.5.11997.02
total102.710.0.5.519108.11
Western Pre-Alps0-20%0.8580.31000.8581.837
21-40%0.6700.31000.31001.148
41-60%3.9230.7503.9238.614
61-80%4.6210.8504.62010.013
over 80%9.2132.42712.41124.06
total19.094.52021.9745.53
Central Pre-Alps0-20%0.6580.0.0.6571.140
21-40%2.7260.4710.8503.822
41-60%5.9170.7501.5358.115
61-80%10.9130.9448.31520.29
over 80%32.473.62432.2768.13
total52.455.61843.45101.42
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.1.1442.827
41-60%3.9230.4712.6286.917
61-80%8.4150.21005.61914.211
over 80%22.182.13024.8749.04
total37.262.72634.8674.62
Northwestern Alps0-20%2.2300.6571.0443.822
21-40%3.8230.4711.0445.319
41-60%6.6170.4713.12510.114
61-80%5.4192.3307.21614.910
over 80%10.1136.91613.01130.06
total28.1710.61325.3764.13
Central Alps0-20%1.2410.4700.4712.031
21-40%2.1300.0.0.21002.328
41-60%2.4280.4711.2414.021
61-80%4.0221.5351.4376.916
over 80%6.2163.3235.71715.28
total15.995.6178.91330.44
Northeastern Alps0-20%0.4710.0.0.9431.336
21-40%1.8330.4710.8513.025
41-60%3.0250.5581.9315.418
61-80%3.6231.4382.7267.715
over 80%5.8174.3217.91317.97
total14.5106.61614.2935.24
Southwestern Alps0-20%1.0450.21001.0452.230
21-40%9.2151.4383.02613.612
41-60%9.2154.3218.31521.99
61-80%9.9145.61814.91130.57
over 80%11.81212.81128.6753.25
total41.2624.3855.84121.32
Southeastern Alps0-20%2.6280.21001.4384.222
21-40%9.3151.2416.81717.410
41-60%17.0113.82314.41135.17
61-80%24.398.21518.01050.46
over 80%29.286.81621.8957.85
total82.3420.2962.55164.92
Southern Alps0-20%1.8330.6582.4294.820
21-40%6.3170.8503.92211.013
41-60%9.6141.6358.91420.19
61-80%11.4133.82220.5935.77
over 80%17.2107.41676.24100.83
total46.2614.211111.93172.42
Switzerland0-20%15.4112.3309.11526.79
21-40%44.174.92018.11067.05
41-60%77.0513.01247.16137.14
61-80%116.8425.5988.15230.43
over 80%454.5153.26268.22775.91
total707.8198.94430.621237.21
© WSL, Swiss National Forest Inventory, 18.06.2020 #863489/329820
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%8.1150.21001.0459.314
61-80%17.2100.8503.12521.19
over 80%89.833.62323.18116.62
total119.224.62027.47151.31
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%40.130.0.4.12244.22
total42.630.0.4.12246.82
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%3.9230.0.0.7584.521
over 80%36.340.0.4.32140.73
total44.730.0.5.01949.72
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.4370.0.0.21001.735
61-80%5.3190.0.0.5585.818
over 80%52.230.0.8.91461.12
total60.520.0.9.61370.11
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%5.7180.0.0.3716.117
over 80%91.720.0.5.11996.82
total102.110.0.5.519107.61
Western Pre-Alps0-20%1.1450.31000.9512.331
21-40%0.6700.31000.31001.148
41-60%3.7240.7503.9238.415
61-80%4.6210.8504.62010.013
over 80%9.4132.42712.21124.16
total19.494.52021.9745.83
Central Pre-Alps0-20%0.9440.0.0.6571.535
21-40%2.7260.4711.0454.021
41-60%5.9170.7501.7338.314
61-80%11.3120.9448.31520.69
over 80%33.073.62432.7669.33
total53.855.61844.25103.62
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.0.9492.529
41-60%4.3210.4712.6287.316
61-80%8.2150.21005.41913.811
over 80%22.182.32925.3749.74
total37.462.92534.8675.02
Northwestern Alps0-20%2.2300.6571.0443.822
21-40%3.6230.4711.0445.119
41-60%7.0170.4713.12510.513
61-80%6.0182.5297.31615.710
over 80%11.3127.01612.81131.25
total30.1711.01225.2766.33
Central Alps0-20%1.2410.4700.4712.031
21-40%2.5270.0.0.4702.925
41-60%2.4280.4711.6354.420
61-80%4.1211.5351.4377.115
over 80%6.8163.8216.31616.97
total17.196.11610.11233.34
Northeastern Alps0-20%0.4710.0.0.9431.336
21-40%1.8330.4710.8513.025
41-60%3.1250.5582.1305.717
61-80%3.6231.6353.2258.514
over 80%5.9174.3219.71220.06
total14.9106.81616.7838.43
Southwestern Alps0-20%1.2410.4711.0452.628
21-40%9.6141.6353.42414.611
41-60%9.8144.5218.71523.19
61-80%10.4145.61815.31131.37
over 80%13.01213.01128.8754.74
total44.0625.1857.24126.32
Southeastern Alps0-20%2.4290.21001.4384.022
21-40%9.3151.2417.01717.510
41-60%18.1103.82315.31137.17
61-80%24.298.81519.01052.05
over 80%29.086.41722.0957.45
total83.0420.4964.64168.02
Southern Alps0-20%2.6280.6583.8237.017
21-40%7.3160.8503.92211.912
41-60%10.8131.43810.51322.69
61-80%14.3113.82221.8940.06
over 80%18.6107.41678.44104.43
total53.5514.011118.52186.01
Switzerland0-20%16.9112.42910.61430.08
21-40%45.675.12018.91069.55
41-60%80.3513.01250.76143.93
61-80%120.3426.6890.94237.93
over 80%459.2153.96273.92787.01
total722.41101.04444.921268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #863490/329821
NFI3
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest
grid: 1.4 x 1.4 km grid
state2004/06
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.3400.0.0.0.1.340
21-40%2.7270.0.0.21002.926
41-60%9.0140.21001.04510.213
61-80%17.6100.8503.32421.79
over 80%90.233.62323.38117.22
total120.924.62027.87153.31
Eastern Jura0-20%0.21000.0.0.0.0.2100
21-40%0.31000.0.0.0.0.3100
41-60%0.7580.0.0.0.0.758
61-80%1.4390.0.0.0.1.439
over 80%40.130.0.4.12244.22
total42.630.0.4.12246.82
Western Plateau0-20%0.8490.0.0.0.0.849
21-40%0.8490.0.0.0.0.849
41-60%2.9260.0.0.0.2.926
61-80%4.1220.0.0.7584.820
over 80%36.740.0.4.52041.23
total45.330.0.5.21950.52
Central Plateau0-20%0.5580.0.0.0.0.558
21-40%1.1440.0.0.0.1.144
41-60%1.4370.0.0.21001.735
61-80%5.3190.0.0.5585.818
over 80%53.030.0.8.91461.92
total61.320.0.9.61370.91
Eastern Plateau0-20%1.0440.0.0.0.1.044
21-40%1.7340.0.0.0.1.734
41-60%2.0310.0.0.0.2.031
61-80%6.1170.0.0.3716.416
over 80%91.820.0.5.11997.02
total102.710.0.5.519108.11
Western Pre-Alps0-20%1.1450.31000.9512.331
21-40%0.6700.31000.31001.148
41-60%3.9230.7503.9238.614
61-80%4.6210.8504.62010.013
over 80%9.4132.42712.41124.26
total19.684.52022.1746.23
Central Pre-Alps0-20%0.9440.0.0.6571.535
21-40%2.9250.4711.0454.221
41-60%6.1170.9451.7338.714
61-80%11.3120.9448.31520.69
over 80%33.273.62433.1669.83
total54.455.81844.65104.82
Eastern Pre-Alps0-20%1.0450.0.0.7571.735
21-40%1.6350.0.1.1442.827
41-60%4.3210.4712.6287.316
61-80%8.4150.21005.61914.211
over 80%22.482.32925.9750.64
total37.862.92535.8676.52
Northwestern Alps0-20%2.8270.6571.0444.421
21-40%3.8230.4711.0445.319
41-60%7.2160.4713.12510.713
61-80%6.2172.5297.91516.510
over 80%11.5127.21613.21132.05
total31.5711.21226.2768.93
Central Alps0-20%1.2410.4700.4712.031
21-40%2.5270.0.0.4702.925
41-60%2.6270.4711.6354.620
61-80%4.6201.5351.4377.515
over 80%7.0153.8216.31617.17
total17.996.11610.11234.14
Northeastern Alps0-20%0.4710.0.0.9431.336
21-40%1.8330.4710.8513.025
41-60%3.3240.5582.1305.917
61-80%3.6231.6353.2258.514
over 80%6.1174.3219.91120.46
total15.2106.81616.9839.03
Southwestern Alps0-20%1.2410.4711.0452.628
21-40%10.0141.6353.42415.011
41-60%10.0144.5218.91423.59
61-80%10.8135.61815.31131.77
over 80%13.01213.01129.0754.94
total45.0625.1857.64127.72
Southeastern Alps0-20%2.6280.21001.4384.222
21-40%9.7141.2417.01717.910
41-60%18.1103.92215.31137.37
61-80%24.998.81519.01052.65
over 80%29.686.81622.2958.65
total84.8421.0964.84170.62
Southern Alps0-20%2.8270.6584.0227.416
21-40%7.7160.8503.92212.312
41-60%11.4131.63510.51323.49
61-80%14.3113.82222.2940.46
over 80%18.7107.41678.64104.83
total54.9514.211119.22188.41
Switzerland0-20%18.0112.42910.81431.28
21-40%47.265.12019.11071.45
41-60%82.9513.61250.96147.33
61-80%123.1426.6892.34242.03
over 80%462.8154.56276.62793.91
total734.01102.24449.721285.80
© WSL, Swiss National Forest Inventory, 18.06.2020 #863491/329822
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.7350.0.0.0.1.735
21-40%3.0260.21000.0.3.125
41-60%10.4130.21000.47110.913
61-80%26.981.0454.12231.97
over 80%78.733.32422.98104.92
total120.624.62027.47152.71
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.2220.0.0.5714.721
over 80%36.740.0.3.52340.23
total43.230.0.4.12247.42
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%4.0200.0.0.0.4.020
61-80%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.330.0.5.01949.22
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%4.0210.0.0.21004.220
61-80%11.7120.0.1.43713.111
over 80%42.740.0.7.81550.53
total60.020.0.9.61369.71
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.2240.0.0.0.3.224
61-80%16.2100.0.0.47116.610
over 80%80.320.0.5.11985.32
total103.410.0.5.519108.91
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%1.6380.5721.6383.724
41-60%3.5250.9452.6287.016
61-80%4.7201.4387.31613.511
over 80%8.2141.7339.51219.46
total18.494.52021.3844.23
Central Pre-Alps0-20%1.2410.0.0.6571.733
21-40%1.7330.0.1.5353.324
41-60%11.0121.4382.42714.910
61-80%18.0101.73314.11133.86
over 80%22.592.62724.6849.84
total54.455.81843.25103.42
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.4250.0.1.0444.421
41-60%5.5190.0.2.5288.015
61-80%9.7130.7506.91717.310
over 80%19.691.93122.9844.44
total38.362.72633.8674.82
Northwestern Alps0-20%0.0.0.8500.8491.634
21-40%2.2300.6581.4374.321
41-60%5.8181.2413.62410.513
61-80%8.9142.8265.91817.69
over 80%8.9144.92013.51127.36
total25.8810.41325.2761.43
Central Alps0-20%0.0.0.21000.0.0.2100
21-40%1.6350.4700.4712.428
41-60%2.9250.4711.6354.918
61-80%4.1211.5351.9317.614
over 80%4.1203.1244.71811.99
total12.7105.6178.61326.94
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%1.9310.4710.5572.825
41-60%3.0260.3712.1305.418
61-80%2.9262.0323.2248.014
over 80%3.6224.1218.01315.78
total11.4126.81614.3932.54
Southwestern Alps0-20%1.0450.0.0.6581.635
21-40%7.2171.2413.52411.913
41-60%12.4125.71810.91329.08
61-80%11.1138.11521.3940.66
over 80%8.4158.81420.7937.96
total40.2623.9857.04121.12
Southeastern Alps0-20%1.6350.0.0.4712.032
21-40%9.9141.2415.91817.010
41-60%19.4106.01818.41043.96
61-80%24.087.41622.9954.45
over 80%14.6114.72015.01034.46
total69.5419.4962.74151.62
Southern Alps0-20%1.2410.0.1.0452.230
21-40%5.1190.6583.3249.014
41-60%8.6152.7279.21420.59
61-80%8.6154.12225.5838.26
over 80%14.0116.11868.3488.33
total37.5713.411107.33158.32
Switzerland0-20%10.7141.0444.92016.611
21-40%41.975.12019.21066.25
41-60%95.0418.91054.16168.03
61-80%158.8330.88116.34306.02
over 80%373.2241.37230.62645.11
total679.7197.14425.121201.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863492/329823
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.5370.0.0.0.1.537
21-40%2.7270.21000.0.2.926
41-60%10.1130.21000.47110.713
61-80%26.181.0454.12231.17
over 80%78.233.32422.78104.22
total118.624.62027.27150.51
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.0220.0.0.5714.521
over 80%36.140.0.3.52339.63
total42.430.0.4.12246.62
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%3.8210.0.0.0.3.821
61-80%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.130.0.5.01949.12
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%4.1200.0.0.21004.220
61-80%11.6120.0.1.43713.011
over 80%42.740.0.7.61550.33
total59.920.0.9.41369.31
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.0250.0.0.0.3.025
61-80%15.9100.0.0.47116.210
over 80%79.530.0.5.11984.62
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%1.5410.5721.6383.525
41-60%4.3220.9452.8278.115
61-80%4.5211.4387.31613.311
over 80%8.0141.7339.51219.16
total18.694.52021.5844.63
Central Pre-Alps0-20%0.8500.0.0.6571.337
21-40%1.3380.0.1.5352.925
41-60%11.0121.2412.32814.510
61-80%17.2101.73313.91132.87
over 80%21.792.62724.4848.74
total52.055.61842.65100.22
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.1250.0.1.0444.222
41-60%5.5190.0.2.5288.015
61-80%8.9140.7506.91716.510
over 80%19.091.93122.9843.84
total36.762.72633.8673.22
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%2.2300.6581.4374.321
41-60%5.9181.2413.62410.713
61-80%9.3142.8265.91818.09
over 80%9.5144.92013.11127.56
total27.1810.41324.8762.33
Central Alps0-20%0.21000.21000.0.0.471
21-40%1.4380.4700.4712.230
41-60%3.3230.4711.6355.318
61-80%5.5181.5352.3289.413
over 80%4.7193.1244.51912.39
total15.1105.6178.91329.64
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.3280.4710.5573.223
41-60%2.6270.3712.1305.019
61-80%4.3211.7333.2249.213
over 80%4.9194.1217.41416.58
total14.1106.61613.81034.54
Southwestern Alps0-20%0.8500.0.0.4711.241
21-40%6.0181.2413.12610.314
41-60%11.6135.91810.61328.28
61-80%12.0138.11520.9941.06
over 80%10.1139.11420.7939.86
total40.4624.3855.84120.52
Southeastern Alps0-20%1.0450.21000.4711.635
21-40%8.6151.2415.51915.311
41-60%22.595.81819.01047.36
61-80%30.587.41621.9959.95
over 80%17.9104.92015.11137.86
total80.4419.6961.95162.02
Southern Alps0-20%1.2410.0.1.4382.628
21-40%6.1180.6583.72310.413
41-60%10.6132.9269.41422.99
61-80%11.0134.32125.7841.06
over 80%15.9116.11870.8492.83
total44.9613.811111.03169.72
Switzerland0-20%9.7141.2415.12016.011
21-40%39.675.12018.81063.65
41-60%99.7418.91054.76173.33
61-80%168.5330.88115.34314.62
over 80%379.0241.77231.32652.11
total696.6197.74425.221219.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863493/329824
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
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
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.5370.0.0.0.1.537
21-40%1.5370.21000.0.1.735
41-60%9.1140.21000.4719.714
61-80%24.481.0454.12229.57
over 80%76.843.32422.38102.42
total113.324.62026.88144.81
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.0220.0.0.5714.521
over 80%35.240.0.3.52338.73
total41.630.0.4.12245.72
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%3.6210.0.0.0.3.621
61-80%7.3160.0.0.9508.215
over 80%29.550.0.4.12133.74
total42.030.0.5.01947.02
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%3.8210.0.0.21004.021
61-80%11.6120.0.1.43713.011
over 80%42.540.0.7.61550.23
total59.530.0.9.41369.01
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.0250.0.0.0.3.025
61-80%15.2100.0.0.47115.610
over 80%78.230.0.5.11983.32
total100.220.0.5.519105.61
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%0.8570.5721.6382.828
41-60%3.0270.9452.2306.018
61-80%4.0221.4387.11612.611
over 80%7.6141.5359.31218.36
total15.6104.32120.4840.33
Central Pre-Alps0-20%0.8500.0.0.4701.140
21-40%1.0450.0.1.5352.527
41-60%8.8141.2412.32812.311
61-80%16.3101.73313.51131.57
over 80%21.192.62724.0847.75
total47.955.61841.6595.12
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%2.7270.0.1.0443.823
41-60%3.6230.0.2.1315.718
61-80%8.1150.7506.51715.310
over 80%18.391.93122.1842.34
total32.962.72632.1667.73
Northwestern Alps0-20%0.0.0.8500.8491.634
21-40%0.8500.6581.2402.727
41-60%3.3251.2413.6248.115
61-80%6.6172.6275.51814.710
over 80%6.9164.72012.51124.07
total17.61010.01323.5851.13
Central Alps0-20%0.0.0.21000.0.0.2100
21-40%0.4710.4700.21001.044
41-60%2.5260.4710.6573.522
61-80%2.9251.1401.5355.617
over 80%3.6212.7254.31910.710
total9.5124.8186.71520.95
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%0.9440.4710.4701.632
41-60%1.5380.21001.6363.225
61-80%1.8331.7333.0256.516
over 80%3.4224.1217.21414.88
total7.6156.41612.71026.65
Southwestern Alps0-20%0.21000.0.0.21000.471
21-40%3.0261.0452.5296.417
41-60%6.3185.3199.91421.59
61-80%8.5157.91519.7936.16
over 80%6.6178.61419.3934.66
total24.5822.9851.6599.02
Southeastern Alps0-20%0.4710.0.0.21000.658
21-40%4.6211.2413.9239.714
41-60%14.0124.62116.21034.87
61-80%20.496.81719.6946.95
over 80%11.2134.32113.91129.47
total50.6517.01053.75121.32
Southern Alps0-20%0.21000.0.0.6580.850
21-40%0.4710.4711.4382.130
41-60%3.1252.0325.91811.013
61-80%5.3193.72321.1930.17
over 80%11.1135.91862.2479.13
total20.1911.91291.13123.12
Switzerland0-20%7.1171.0443.72411.813
21-40%20.4104.72113.61238.77
41-60%67.1515.91144.96127.94
61-80%136.4428.88104.74269.92
over 80%352.1239.77217.33609.11
total583.0190.14384.321057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #863494/329825
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.5370.0.0.0.1.537
21-40%2.7270.21000.0.2.926
41-60%10.4130.21000.47111.013
61-80%26.181.0454.12231.17
over 80%78.633.32422.98104.72
total119.224.62027.47151.31
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.0220.0.0.5714.521
over 80%36.340.0.3.52339.83
total42.630.0.4.12246.82
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%3.8210.0.0.0.3.821
61-80%7.9150.0.0.9508.814
over 80%31.450.0.4.12135.54
total44.730.0.5.01949.72
Central Plateau0-20%1.1430.0.0.21001.339
21-40%0.7560.0.0.0.0.756
41-60%4.1200.0.0.21004.220
61-80%11.6120.0.1.43713.011
over 80%43.140.0.7.81550.93
total60.520.0.9.61370.11
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.0250.0.0.0.3.025
61-80%15.9100.0.0.47116.210
over 80%79.530.0.5.11984.62
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.5720.0.0.31000.858
21-40%1.6380.5721.6383.724
41-60%4.3220.9453.3258.514
61-80%4.7201.4387.31613.511
over 80%8.2141.7339.51219.46
total19.494.52021.9745.83
Central Pre-Alps0-20%1.1400.0.0.6571.733
21-40%1.3380.0.1.5352.925
41-60%11.6121.2412.62615.410
61-80%17.4101.73314.11133.26
over 80%22.392.62725.4850.44
total53.855.61844.25103.62
Eastern Pre-Alps0-20%0.4710.0.0.4700.949
21-40%3.3250.0.1.0444.421
41-60%5.5190.0.2.5288.015
61-80%8.9140.7507.11616.810
over 80%19.292.13023.7745.04
total37.462.92534.8675.02
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%2.4290.6581.4374.521
41-60%6.5171.2413.62411.313
61-80%10.7132.8265.91819.49
over 80%10.2135.51813.51129.36
total30.1711.01225.2766.33
Central Alps0-20%0.6580.21000.0.0.850
21-40%1.4380.4700.4712.230
41-60%3.9210.4711.8336.116
61-80%5.9171.5352.3289.813
over 80%5.3183.7225.51714.58
total17.196.11610.11233.34
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.3280.4710.5573.223
41-60%2.8260.3712.5275.718
61-80%4.5202.0323.62310.113
over 80%5.3184.1219.51218.97
total14.9106.81616.7838.43
Southwestern Alps0-20%1.0450.0.0.8501.833
21-40%6.2181.2413.12610.514
41-60%12.8126.11811.01330.07
61-80%13.5128.51421.5943.66
over 80%10.4139.21420.7940.46
total44.0625.1857.24126.32
Southeastern Alps0-20%1.0450.21000.6581.833
21-40%8.6151.4385.91815.911
41-60%23.496.01819.61049.06
61-80%31.977.91522.3962.15
over 80%18.1104.92016.21039.26
total83.0420.4964.64168.02
Southern Alps0-20%2.2300.0.1.6353.823
21-40%6.9170.6583.92211.413
41-60%12.4122.92610.91326.28
61-80%13.7124.52128.1846.26
over 80%18.3106.11874.0498.33
total53.5514.011118.52186.01
Switzerland0-20%12.3131.2415.81919.410
21-40%41.275.32019.41065.95
41-60%105.8419.31058.76183.83
61-80%176.8332.18119.54328.32
over 80%386.2243.27241.42670.91
total722.41101.04444.921268.30
© WSL, Swiss National Forest Inventory, 18.06.2020 #863495/329826
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest
grid: 1.4 x 1.4 km grid
state2009/17
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.7350.0.0.0.1.735
21-40%3.0260.21000.0.3.125
41-60%10.4130.21000.47110.913
61-80%26.981.0454.12231.97
over 80%78.733.32422.98104.92
total120.624.62027.47152.71
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.2220.0.0.5714.721
over 80%36.740.0.3.52340.23
total43.230.0.4.12247.42
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%4.0200.0.0.0.4.020
61-80%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.330.0.5.01949.22
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%4.3200.0.0.21004.420
61-80%11.7120.0.1.43713.111
over 80%42.740.0.7.81550.53
total60.320.0.9.61369.91
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.2240.0.0.0.3.224
61-80%16.2100.0.0.47116.610
over 80%80.320.0.5.11985.32
total103.410.0.5.519108.91
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%1.6380.5721.6383.724
41-60%4.3220.9452.8278.115
61-80%4.9201.4387.31613.711
over 80%8.2141.7339.51219.46
total19.494.52021.5845.43
Central Pre-Alps0-20%1.2410.0.0.8501.931
21-40%1.7330.0.1.5353.324
41-60%11.4121.4382.42715.310
61-80%18.0101.73314.11133.86
over 80%22.792.62724.6849.94
total55.055.81843.45104.22
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.6240.0.1.0444.621
41-60%6.3180.0.2.5288.814
61-80%9.7130.7506.91717.310
over 80%19.691.93122.9844.44
total39.362.72633.8675.82
Northwestern Alps0-20%0.21000.8500.8491.832
21-40%3.2250.6581.4375.319
41-60%7.0171.2413.62411.812
61-80%9.5142.8265.91818.29
over 80%9.7134.92013.51128.16
total29.6710.41325.2765.23
Central Alps0-20%0.4710.21000.0.0.658
21-40%2.8270.4700.4713.623
41-60%3.3230.4711.6355.318
61-80%5.9171.7332.32810.013
over 80%4.7193.3234.71812.79
total17.196.0169.01232.14
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%2.7260.4710.5573.622
41-60%3.6230.3712.1306.017
61-80%4.8202.0323.2249.913
over 80%5.1184.1218.01317.28
total16.1106.81614.3937.34
Southwestern Alps0-20%1.0450.0.0.6581.635
21-40%8.4151.2413.52413.112
41-60%13.8125.91810.91330.67
61-80%12.8128.11521.3942.26
over 80%10.5139.11420.7940.26
total46.5624.3857.04127.82
Southeastern Alps0-20%1.6350.21000.6582.429
21-40%12.3131.2415.91819.410
41-60%24.496.01819.41049.96
61-80%30.987.71623.1861.65
over 80%18.8104.92015.41039.26
total88.0420.0964.54172.52
Southern Alps0-20%2.2300.0.1.4383.623
21-40%7.3160.6583.72311.613
41-60%11.4132.92610.11424.58
61-80%12.0134.32126.5842.86
over 80%16.5116.11871.6494.23
total49.4613.811113.43176.62
Switzerland0-20%12.3131.2415.71919.210
21-40%51.065.12019.61075.75
41-60%108.7419.31056.26184.33
61-80%175.2331.48117.94324.52
over 80%385.1241.97234.32661.41
total732.3198.94433.721264.91
© WSL, Swiss National Forest Inventory, 18.06.2020 #863496/329827
NFI4
forest area
avalanches SilvaProtect · degree of cover (aerial photo, 5 classes)
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
avalanches SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%1.5370.0.0.0.1.537
21-40%2.7270.21000.0.2.926
41-60%10.1130.21000.47110.713
61-80%26.181.0454.12231.17
over 80%78.233.32422.78104.22
total118.624.62027.27150.51
Eastern Jura0-20%0.8470.0.0.0.0.847
21-40%0.21000.0.0.0.0.2100
41-60%1.3410.0.0.21001.537
61-80%4.0220.0.0.5714.521
over 80%36.140.0.3.52339.63
total42.430.0.4.12246.62
Western Plateau0-20%1.0430.0.0.0.1.043
21-40%0.6570.0.0.0.0.657
41-60%3.8210.0.0.0.3.821
61-80%7.7150.0.0.9508.614
over 80%31.050.0.4.12135.14
total44.130.0.5.01949.12
Central Plateau0-20%0.9480.0.0.21001.143
21-40%0.7560.0.0.0.0.756
41-60%3.8210.0.0.21004.021
61-80%11.6120.0.1.43713.011
over 80%42.740.0.7.61550.33
total59.730.0.9.41369.11
Eastern Plateau0-20%0.9490.0.0.0.0.949
21-40%2.9250.0.0.0.2.925
41-60%3.0250.0.0.0.3.025
61-80%15.9100.0.0.47116.210
over 80%79.530.0.5.11984.62
total102.110.0.5.519107.61
Western Pre-Alps0-20%0.31000.0.0.31000.670
21-40%1.5410.5721.6383.525
41-60%3.5250.9452.6287.016
61-80%4.4211.4387.31613.111
over 80%8.0141.7339.51219.16
total17.694.52021.3843.33
Central Pre-Alps0-20%0.8500.0.0.6571.337
21-40%1.3380.0.1.5352.925
41-60%10.4131.2412.32813.911
61-80%17.2101.73313.91132.87
over 80%21.592.62724.4848.54
total51.255.61842.6599.42
Eastern Pre-Alps0-20%0.21000.0.0.4700.657
21-40%3.1250.0.1.0444.222
41-60%5.1190.0.2.3297.416
61-80%8.7140.7506.91716.310
over 80%19.091.93122.9843.84
total36.162.72633.5672.32
Northwestern Alps0-20%0.0.0.8500.8491.634
21-40%1.4370.6581.4373.523
41-60%4.9201.2413.6249.714
61-80%8.7152.8265.91817.410
over 80%8.7144.92013.11126.76
total23.7810.41324.8758.93
Central Alps0-20%0.0.0.21000.0.0.2100
21-40%1.2410.4700.4712.031
41-60%2.9250.4711.4374.719
61-80%3.9211.3371.8337.015
over 80%4.1202.9254.51911.59
total12.1115.2188.11325.44
Northeastern Alps0-20%0.0.0.0.0.5570.557
21-40%1.5340.4710.5572.426
41-60%2.0320.3712.1304.520
61-80%2.5271.7333.2247.415
over 80%3.4224.1217.41415.08
total9.5136.61613.81029.85
Southwestern Alps0-20%0.8500.0.0.4711.241
21-40%5.4191.0453.1269.514
41-60%10.2145.71810.61326.68
61-80%10.3138.11520.9939.46
over 80%7.6158.81420.7937.16
total34.3723.7855.84113.82
Southeastern Alps0-20%1.0450.0.0.4711.438
21-40%7.2161.2415.51913.911
41-60%18.4105.81817.81042.16
61-80%23.697.21621.7952.65
over 80%13.2124.72014.91132.87
total63.5519.01060.35142.82
Southern Alps0-20%0.6580.0.1.0451.635
21-40%4.1220.6583.1257.815
41-60%7.4162.7278.61518.710
61-80%7.3164.12224.4835.77
over 80%12.6126.11867.5486.13
total32.0713.411104.53150.02
Switzerland0-20%8.7151.0444.72114.412
21-40%33.884.92018.21056.96
41-60%87.1518.51052.16157.73
61-80%151.8330.28113.24295.22
over 80%365.5241.17227.82634.41
total646.9195.74415.921158.51
© WSL, Swiss National Forest Inventory, 18.06.2020 #863497/329828
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