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NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juracritical..2.40.82.30.7
less stable23.011.730.62.330.42.2
stable77.011.767.02.367.32.3
total100.0.100.0.100.0.
Eastern Juracritical..1.61.21.61.2
less stable..36.14.336.14.3
stable..62.24.462.24.4
total..100.0.100.0.
Western Plateaucritical..2.61.52.61.5
less stable..34.94.434.94.4
stable..62.54.562.54.5
total..100.0.100.0.
Central Plateaucritical..2.71.12.71.1
less stable..38.93.338.93.3
stable..58.43.358.43.3
total..100.0.100.0.
Eastern Plateaucritical..2.20.82.20.8
less stable..38.02.738.02.7
stable..59.72.859.72.8
total..100.0.100.0.
Western Pre-Alpscritical..6.32.35.82.1
less stable44.116.649.04.748.74.6
stable55.916.644.74.745.54.5
total100.0.100.0.100.0.
Central Pre-Alpscritical5.35.19.11.88.81.7
less stable68.410.745.13.146.73.0
stable26.310.145.93.144.53.0
total100.0.100.0.100.0.
Eastern Pre-Alpscritical..5.11.64.91.5
less stable62.517.141.93.542.73.5
stable37.517.153.03.652.43.5
total100.0.100.0.100.0.
Northwestern Alpscritical6.74.65.61.95.81.8
less stable50.09.152.84.252.33.8
stable43.39.141.64.141.93.8
total100.0.100.0.100.0.
Central Alpscritical13.38.88.03.49.03.3
less stable46.712.944.56.344.95.7
stable40.012.747.56.346.15.7
total100.0.100.0.100.0.
Northeastern Alpscritical..11.33.89.03.0
less stable50.011.853.55.952.85.3
stable50.011.835.25.738.25.2
total100.0.100.0.100.0.
Southwestern Alpscritical13.74.012.62.112.91.9
less stable45.25.840.83.141.82.8
stable41.15.846.63.245.32.8
total100.0.100.0.100.0.
Southeastern Alpscritical12.04.66.81.37.41.3
less stable42.07.036.52.637.22.4
stable46.07.156.72.655.42.5
total100.0.100.0.100.0.
Southern Alpscritical5.13.56.61.36.51.2
less stable41.07.950.22.649.32.5
stable53.88.043.22.644.22.4
total100.0.100.0.100.0.
Switzerlandcritical8.31.75.60.45.80.4
less stable46.03.040.90.941.30.9
stable45.73.053.60.952.90.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164807/151189

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juracritical..3.6313.631
less stable1.15845.4846.48
stable3.63199.34102.84
total4.627148.22152.82
Eastern Juracritical..0.8700.870
less stable..17.41217.412
stable..30.0730.07
total..48.2248.22
Western Plateaucritical..1.2571.257
less stable..16.91316.913
stable..30.3830.38
total..48.4348.43
Central Plateaucritical..1.9401.940
less stable..26.7926.79
stable..40.1640.16
total..68.7268.72
Eastern Plateaucritical..2.5372.537
less stable..42.5742.57
stable..66.8566.85
total..111.92111.92
Western Pre-Alpscritical..2.6372.637
less stable1.55020.31121.810
stable1.94418.51120.410
total3.33341.4444.84
Central Pre-Alpscritical0.41008.2208.620
less stable4.72740.9745.57
stable1.84441.6743.47
total6.82290.7397.52
Eastern Pre-Alpscritical..3.6313.631
less stable1.84429.6931.48
stable1.15737.5738.67
total2.93570.7373.63
Northwestern Alpscritical0.7712.9353.631
less stable5.42526.8932.28
stable4.62721.11125.810
total10.71750.8561.54
Central Alpscritical0.7701.7442.437
less stable2.4379.71712.114
stable2.14010.41612.414
total5.22421.8927.07
Northeastern Alpscritical..2.9342.934
less stable3.23213.61416.811
stable3.2329.01812.215
total6.42225.4831.96
Southwestern Alpscritical3.43110.61714.115
less stable11.31734.3945.67
stable10.31839.2849.57
total25.01184.14109.13
Southeastern Alpscritical2.1418.42010.518
less stable7.42144.9852.37
stable8.12069.8577.95
total17.613123.13140.62
Southern Alpscritical0.7718.7209.519
less stable5.72566.1671.85
stable7.52157.0764.46
total13.815131.93145.72
Switzerlandcritical8.02159.6867.67
less stable44.39435.22479.62
stable44.19570.52614.52
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164808/151190

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....3.61.8......1.50.7
21-40%7.87.5..5.52.27.43.29.54.52.42.46.21.5
41-60%....12.83.233.85.742.97.622.16.523.32.5
61-80%38.413.5..29.14.329.45.526.26.841.47.731.02.8
over 80%53.813.8..49.14.829.45.521.46.334.17.438.02.9
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.50.51.10.41.00.31.40.81.40.71.50.61.30.2
21-40%1.50.51.80.55.30.88.81.912.52.05.21.14.70.4
41-60%8.41.25.00.817.61.330.93.132.32.815.01.814.90.6
61-80%24.61.920.81.532.61.635.53.337.72.925.72.228.10.8
over 80%64.02.171.41.743.51.723.52.916.02.252.52.651.00.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.50.51.10.41.30.41.10.61.20.61.40.61.30.2
21-40%1.70.61.80.55.30.78.51.712.21.85.01.14.80.4
41-60%8.21.25.00.817.01.231.62.833.72.615.71.815.60.6
61-80%24.91.920.81.532.21.534.02.836.22.727.22.228.40.8
over 80%63.72.171.41.744.21.624.92.616.72.150.72.450.00.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164809/151191

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....1.450......1.450
21-40%0.4100..2.1411.7451.4500.41006.024
41-60%....5.0277.9206.4233.23322.412
61-80%1.845..11.3176.8223.9306.12429.911
over 80%2.538..19.1136.8223.2335.02636.710
total4.727..39.0923.31114.81514.61596.46
outside perimeter0-20%2.9352.8353.2331.0581.4502.14113.416
21-40%2.9354.62816.1156.52212.7167.12249.88
41-60%15.91512.71653.8823.01132.7920.313158.34
61-80%46.5853.4799.7526.41038.1834.89298.93
over 80%121.04183.63133.1417.41316.21471.15542.42
total189.22257.11305.9274.34101.13135.431062.91
total0-20%2.9352.8354.6281.0581.4502.14114.915
21-40%3.3334.62818.2148.32014.1157.42255.88
41-60%15.91512.71658.8730.8939.1823.512180.84
61-80%48.3853.47111.0533.2942.0840.88328.83
over 80%123.53183.63152.3424.31119.31376.15579.12
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164810/151192

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter< 1%....1.4506.2230.41008.021
1-4%....2.24112.8165.02619.913
5-9%1.845..2.53811.1172.14117.614
10-25%1.158..3.63121.8123.53130.011
26-50%0.4100..1.8457.6212.53812.317
51-75%0.4100..0.41003.531..4.229
76-100%1.158..1.1581.4500.41003.930
total4.727..13.01664.3713.81595.96
outside perimeter< 1%5.5267.7219.71918.3139.21950.58
1-4%16.11514.41526.71156.8726.911140.85
5-9%23.41220.01327.71156.8733.79161.64
10-25%46.4850.6769.2691.9535.09293.13
26-50%40.2948.5838.6950.4818.713196.24
51-75%31.81042.9819.51319.5135.924119.55
76-100%32.91045.0811.5178.7202.538100.66
total196.01229.11202.92302.42131.931062.41
total< 1%5.5267.72111.21824.5129.61958.58
1-4%16.11514.41528.81169.6631.910160.84
5-9%25.21120.01330.31067.9735.89179.24
10-25%47.5850.6772.86113.6538.68323.13
26-50%40.5948.5840.4958.0721.212208.54
51-75%32.11042.9819.81323.0125.924123.75
76-100%34.0945.0812.61610.1182.835104.55
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164811/151193

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of regeneration (7 classes) %± %± %± %± %± %± %±
inside perimeter< 1%..5.22.919.56.25.52.714.04.92.62.58.31.7
1-4%..17.25.07.34.130.15.416.05.235.97.720.82.4
5-9%38.413.522.45.512.35.219.24.614.04.915.45.818.32.3
10-25%23.211.732.86.236.57.531.55.432.06.625.67.031.32.8
26-50%7.77.412.14.312.25.112.33.812.04.618.06.212.82.0
51-75%7.77.45.22.97.34.1..10.04.2..4.41.2
76-100%23.111.75.22.94.93.41.41.42.02.02.62.54.01.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%3.10.52.60.77.21.45.71.58.31.57.01.34.70.4
1-4%7.20.712.61.514.61.919.22.522.32.220.42.113.30.6
5-9%10.20.914.81.615.02.022.92.717.12.025.52.315.20.7
10-25%22.81.236.32.128.12.529.42.930.42.526.62.327.60.8
26-50%20.91.218.11.721.32.315.92.314.61.914.21.818.50.7
51-75%17.61.110.31.38.11.55.71.55.11.24.51.111.30.6
76-100%18.31.15.31.05.71.31.20.72.30.81.90.79.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%3.10.52.80.78.51.45.71.39.01.46.61.25.00.4
1-4%7.10.713.11.413.81.821.72.321.52.121.92.013.90.6
5-9%10.50.915.61.514.71.822.02.316.71.924.62.115.50.6
10-25%22.81.235.92.029.02.329.92.630.62.326.52.227.90.8
26-50%20.71.217.51.620.32.115.12.014.31.714.51.718.00.7
51-75%17.51.19.71.28.01.44.41.25.71.24.11.010.70.5
76-100%18.41.15.30.95.61.21.30.62.20.71.90.79.00.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164812/151194

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter< 1%..1.1582.8351.4502.5380.41008.021
1-4%..3.6311.0587.5212.8355.02620.013
5-9%1.8454.7271.7454.8262.5382.14117.614
10-25%1.1586.9235.2257.9205.6253.53130.111
26-50%0.41002.5381.7453.1332.1412.53812.317
51-75%0.41001.1581.058..1.845..4.229
76-100%1.1581.1580.7710.31000.41000.41003.930
total4.72820.91314.21525.01117.61313.81596.26
outside perimeter< 1%13.2164.7278.3204.82610.2189.21950.48
1-4%30.41123.11216.91316.21427.41026.911140.95
5-9%43.3927.01117.31319.21221.01233.79161.64
10-25%96.9566.4632.5924.71137.4935.09292.93
26-50%88.7633.21024.51113.41517.91318.713196.44
51-75%74.8618.8139.4194.8266.3235.924119.95
76-100%78.069.7196.6221.0582.8352.538100.66
total425.31182.82115.5384.14123.13131.931062.71
total< 1%13.2165.82511.1176.22312.7169.61958.58
1-4%30.41126.71117.91323.71130.21031.910160.84
5-9%45.1831.71019.11324.01123.51135.89179.24
10-25%98.0573.2637.6832.6943.0838.68323.13
26-50%89.1635.7926.31116.51420.01321.212208.74
51-75%75.1619.81310.4184.8268.0205.924124.15
76-100%79.0610.8187.3211.4503.2332.835104.55
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164813/151195

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of regeneration (7 classes) %± %± %±
Western Jura< 1%..2.40.82.40.7
1-4%..8.21.48.01.3
5-9%38.313.514.01.714.71.7
10-25%23.311.825.02.125.02.1
26-50%7.77.419.31.918.91.9
51-75%7.77.416.61.816.31.8
76-100%23.011.714.41.714.71.7
total100.0.100.0.100.0.
Eastern Jura< 1%..4.11.84.11.8
1-4%..8.22.58.22.5
5-9%..4.92.04.92.0
10-25%..18.83.518.83.5
26-50%..24.63.924.63.9
51-75%..14.83.214.83.2
76-100%..24.63.924.63.9
total..100.0.100.0.
Western Plateau< 1%..1.71.21.71.2
1-4%..10.22.810.22.8
5-9%..12.83.112.83.1
10-25%..29.64.229.64.2
26-50%..23.03.923.03.9
51-75%..10.12.810.12.8
76-100%..12.73.112.73.1
total..100.0.100.0.
Central Plateau< 1%..3.61.33.61.3
1-4%..7.71.87.71.8
5-9%..10.42.110.42.1
10-25%..22.32.822.32.8
26-50%..21.32.821.32.8
51-75%..17.12.517.12.5
76-100%..17.62.617.62.6
total..100.0.100.0.
Eastern Plateau< 1%..3.81.13.81.1
1-4%..3.81.13.81.1
5-9%..6.11.46.11.4
10-25%..19.22.219.22.2
26-50%..20.42.320.42.3
51-75%..23.02.423.02.4
76-100%..23.62.423.62.4
total..100.0.100.0.
Western Pre-Alps< 1%..6.32.35.82.1
1-4%33.515.811.63.013.33.1
5-9%11.210.611.63.011.62.9
10-25%33.015.735.64.535.44.4
26-50%11.210.617.03.616.63.4
51-75%..15.23.414.03.2
76-100%11.210.62.71.53.31.6
total100.0.100.0.100.0.
Central Pre-Alps< 1%5.35.11.60.81.80.8
1-4%10.57.111.12.011.01.9
5-9%26.310.115.42.316.22.2
10-25%36.811.137.23.037.12.9
26-50%10.57.119.02.518.42.4
51-75%5.35.19.11.88.81.7
76-100%5.35.16.71.66.61.5
total100.0.100.0.100.0.
Eastern Pre-Alps< 1%37.517.18.11.99.22.0
1-4%12.511.716.72.716.52.6
5-9%12.511.712.62.412.62.3
10-25%..29.33.228.23.1
26-50%25.015.320.22.920.42.8
51-75%..7.11.86.81.8
76-100%12.511.76.11.76.31.7
total100.0.100.0.100.0.
Northwestern Alps< 1%6.74.61.41.02.31.2
1-4%16.76.816.23.116.32.8
5-9%23.37.716.23.117.42.9
10-25%30.08.435.24.034.33.6
26-50%13.36.217.63.216.92.9
51-75%6.74.68.52.38.12.1
76-100%3.33.34.91.84.71.6
total100.0.100.0.100.0.
Central Alps< 1%6.76.53.12.23.82.2
1-4%6.76.59.43.78.93.2
5-9%6.76.519.05.016.74.2
10-25%46.712.928.35.731.85.3
26-50%13.38.830.45.827.25.1
51-75%20.010.46.33.18.93.2
76-100%..3.32.32.71.9
total100.0.100.0.100.0.
Northeastern Alps< 1%22.29.88.43.311.23.4
1-4%5.65.414.14.112.43.5
5-9%16.78.818.34.618.04.1
10-25%44.411.725.45.229.24.8
26-50%5.65.415.54.313.53.6
51-75%..11.33.89.03.0
76-100%5.65.47.03.06.72.7
total100.0.100.0.100.0.
Southwestern Alps< 1%5.52.75.71.55.71.3
1-4%30.15.419.22.521.72.3
5-9%19.24.622.92.722.02.3
10-25%31.55.429.42.929.92.6
26-50%12.33.815.92.315.12.0
51-75%..5.71.54.41.2
76-100%1.41.41.20.71.30.6
total100.0.100.0.100.0.
Southeastern Alps< 1%14.04.98.31.59.01.4
1-4%16.05.222.32.221.52.1
5-9%14.04.917.12.016.71.9
10-25%32.06.630.42.530.62.3
26-50%12.04.614.61.914.31.7
51-75%10.04.25.11.25.71.2
76-100%2.02.02.30.82.20.7
total100.0.100.0.100.0.
Southern Alps< 1%2.62.57.01.36.61.2
1-4%35.97.720.42.121.92.0
5-9%15.45.825.52.324.62.1
10-25%25.67.026.62.326.52.2
26-50%18.06.214.21.814.51.7
51-75%..4.51.14.11.0
76-100%2.62.51.90.71.90.7
total100.0.100.0.100.0.
Switzerland< 1%8.41.74.80.45.10.4
1-4%20.72.413.30.613.90.6
5-9%18.32.315.20.615.50.6
10-25%31.32.827.60.827.90.8
26-50%12.82.018.50.718.00.7
51-75%4.41.211.20.610.60.5
76-100%4.11.29.50.59.00.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164814/151196

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of regeneration (7 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura< 1%..3.6313.631
1-4%..12.21712.217
5-9%1.84520.71222.512
10-25%1.15837.1938.29
26-50%0.410028.61028.910
51-75%0.410024.61125.011
76-100%1.15821.41222.512
total4.627148.22152.82
Eastern Jura< 1%..2.0442.044
1-4%..4.0304.030
5-9%..2.4402.440
10-25%..9.0199.019
26-50%..11.91611.916
51-75%..7.1227.122
76-100%..11.91611.916
total..48.2248.22
Western Plateau< 1%..0.8700.870
1-4%..4.9284.928
5-9%..6.2246.224
10-25%..14.31514.315
26-50%..11.11711.117
51-75%..4.9284.928
76-100%..6.1256.125
total..48.4348.43
Central Plateau< 1%..2.5352.535
1-4%..5.3235.323
5-9%..7.1207.120
10-25%..15.31315.313
26-50%..14.61314.613
51-75%..11.81511.815
76-100%..12.11512.115
total..68.7268.72
Eastern Plateau< 1%..4.3284.328
1-4%..4.3284.328
5-9%..6.8226.822
10-25%..21.41221.412
26-50%..22.91122.911
51-75%..25.71125.711
76-100%..26.51026.510
total..111.92111.92
Western Pre-Alps< 1%..2.6372.637
1-4%1.1574.8265.923
5-9%0.41004.8265.225
10-25%1.15814.81415.913
26-50%0.41007.0217.421
51-75%..6.3236.323
76-100%0.41001.1571.549
total3.33341.4444.84
Central Pre-Alps< 1%0.41001.4501.844
1-4%0.77110.01810.817
5-9%1.84414.01515.814
10-25%2.53733.7936.28
26-50%0.77117.21317.913
51-75%0.41008.2208.620
76-100%0.41006.1246.523
total6.82290.7397.52
Eastern Pre-Alps< 1%1.1575.7246.822
1-4%0.410011.81612.116
5-9%0.41008.9199.319
10-25%..20.71120.711
26-50%0.77114.31515.014
51-75%..5.0265.026
76-100%0.41004.3284.627
total2.93570.7373.63
Northwestern Alps< 1%0.7710.7711.450
1-4%1.8448.22010.018
5-9%2.5378.22010.717
10-25%3.23317.91321.111
26-50%1.4508.91910.417
51-75%0.7714.3285.026
76-100%0.41002.5372.935
total10.71750.8561.54
Central Alps< 1%0.31000.7701.057
1-4%0.31002.1402.437
5-9%0.31004.2284.526
10-25%2.4376.2228.618
26-50%0.7706.6227.320
51-75%1.0571.4492.437
76-100%..0.7710.771
total5.22421.8927.07
Northeastern Alps< 1%1.4492.1403.630
1-4%0.41003.6303.929
5-9%1.1584.7275.724
10-25%2.9346.4229.317
26-50%0.41003.9294.327
51-75%..2.9342.934
76-100%0.41001.8442.140
total6.42225.4831.96
Southwestern Alps< 1%1.4504.8266.223
1-4%7.52116.21423.711
5-9%4.82619.21224.011
10-25%7.92024.71132.69
26-50%3.13313.41516.514
51-75%..4.8264.826
76-100%0.31001.0581.450
total25.01184.14109.13
Southeastern Alps< 1%2.53810.21812.716
1-4%2.83527.41030.210
5-9%2.53821.01223.511
10-25%5.62537.4943.08
26-50%2.14117.91320.013
51-75%1.8456.3238.020
76-100%0.41002.8353.233
total17.613123.13140.62
Southern Alps< 1%0.41009.2199.619
1-4%5.02626.91131.910
5-9%2.14133.7935.89
10-25%3.53135.0938.68
26-50%2.53818.71321.212
51-75%..5.9245.924
76-100%0.41002.5382.835
total13.815131.93145.72
Switzerland< 1%8.12150.7858.88
1-4%20.013141.65161.64
5-9%17.614161.94179.54
10-25%30.211294.13324.33
26-50%12.317197.14209.44
51-75%4.229119.25123.45
76-100%3.930100.76104.75
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164815/151197

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %± %±
inside perimeterless than 1%....13.63.37.43.219.06.19.74.611.71.9
1-4%7.77.4..14.53.432.35.714.35.429.37.120.72.4
5-9%38.413.5..20.93.919.14.816.75.819.56.220.52.4
10-25%23.211.7..31.84.430.95.626.26.824.36.729.22.7
26-50%7.77.4..10.93.08.83.421.46.314.75.512.42.0
51-75%15.410.0..3.61.81.51.52.42.4..2.91.0
76-100%7.77.4..4.52.0....2.42.42.61.0
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%4.40.96.10.97.40.97.41.813.32.010.51.67.50.5
1-4%10.71.39.61.117.11.320.82.824.52.521.62.115.70.7
5-9%14.71.510.71.115.31.222.12.815.72.224.22.215.70.7
10-25%26.11.925.91.633.21.629.03.131.72.726.32.328.80.8
26-50%19.01.721.21.516.61.317.02.69.71.711.51.616.90.7
51-75%13.91.515.31.37.00.92.31.04.51.24.11.09.30.5
76-100%11.21.411.31.23.30.61.40.80.70.51.80.76.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%4.30.96.10.98.10.97.41.614.01.910.41.57.90.5
1-4%10.61.39.61.116.81.223.52.523.22.322.32.016.10.6
5-9%15.21.610.71.115.91.221.42.415.82.023.82.116.10.6
10-25%26.01.925.91.633.11.529.52.731.02.626.12.128.90.8
26-50%18.81.721.21.516.01.215.12.111.21.711.81.616.50.6
51-75%13.91.515.31.36.60.82.10.94.21.13.70.98.80.5
76-100%11.11.411.31.23.40.61.10.60.60.41.90.75.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164816/151198

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 1%....5.3261.7452.8351.45011.318
1-4%0.4100..5.7257.5212.1414.32920.013
5-9%1.845..8.2214.4272.5372.83519.713
10-25%1.158..12.4177.2213.9303.63128.111
26-50%0.4100..4.3292.1413.2332.24112.017
51-75%0.771..1.4500.31000.4100..2.835
76-100%0.4100..1.845....0.41002.538
total4.727..39.0923.31114.81514.61596.46
outside perimeterless than 1%8.32115.61522.8125.52413.41514.21579.86
1-4%20.21324.71152.3815.41424.71129.210166.54
5-9%27.71127.61146.8816.41315.91432.89167.34
10-25%49.4766.56101.7521.61132.0935.59306.63
26-50%36.0954.5750.9812.7169.81915.514179.44
51-75%26.31139.2921.5131.7444.5275.62598.86
76-100%21.21229.01010.0191.0580.7712.53864.57
total189.22257.11305.9274.34101.13135.431062.91
totalless than 1%8.32115.61528.1117.22116.31415.71491.16
1-4%20.51324.71157.9723.01126.81033.59186.54
5-9%29.51027.61155.0720.91218.31335.69187.04
10-25%50.4766.56114.1528.81035.9939.19334.73
26-50%36.4954.5755.1714.71413.01617.713191.44
51-75%27.01139.2922.9122.1414.9265.625101.76
76-100%21.61229.01011.8171.0580.7712.83567.07
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164817/151199

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover of assured regeneration %± %± %±
AGless than 1%..6.62.26.62.2
1-4%..7.42.47.42.4
5-9%..8.22.58.22.5
10-25%..23.03.823.03.8
26-50%..23.83.923.83.9
51-75%..9.82.79.82.7
76-100%..21.33.721.33.7
total..100.0.100.0.
AIless than 1%66.727.922.711.930.811.8
1-4%33.328.047.014.244.512.8
5-9%..7.67.56.26.1
10-25%..15.110.112.38.4
26-50%..7.67.56.26.1
51-75%......
76-100%......
total100.0.100.0.100.0.
ARless than 1%100.0.16.77.720.08.1
1-4%..16.77.716.07.5
5-9%..25.09.024.08.7
10-25%..16.77.716.07.5
26-50%..20.88.420.08.1
51-75%......
76-100%..4.24.24.04.0
total100.0.100.0.100.0.
BEless than 1%9.54.54.20.94.60.9
1-4%14.25.413.91.613.91.6
5-9%26.16.816.81.817.61.7
10-25%43.17.729.62.130.72.1
26-50%4.73.317.51.816.41.7
51-75%2.42.310.61.49.91.3
76-100%..7.51.26.91.1
total100.0.100.0.100.0.
BL/BSless than 1%..3.92.83.92.8
1-4%..7.93.87.93.8
5-9%..5.93.35.93.3
10-25%..33.16.633.16.6
26-50%..17.75.417.75.4
51-75%..19.75.619.75.6
76-100%..11.84.611.84.6
total..100.0.100.0.
FRless than 1%..5.42.25.32.1
1-4%66.727.312.63.214.13.3
5-9%..13.53.313.13.2
10-25%..37.84.636.84.5
26-50%33.327.318.93.719.33.7
51-75%..10.83.010.52.9
76-100%..0.90.90.90.9
total100.0.100.0.100.0.
GEless than 1%..29.518.729.518.7
1-4%......
5-9%..14.814.614.814.6
10-25%..29.518.729.518.7
26-50%..14.814.614.814.6
51-75%......
76-100%..11.410.311.410.3
total..100.0.100.0.
GLless than 1%18.311.814.76.115.65.5
1-4%9.28.817.66.615.65.5
5-9%17.511.314.76.115.45.4
10-25%36.714.717.66.622.36.3
26-50%9.28.817.66.615.65.5
51-75%..14.76.111.14.7
76-100%9.28.82.92.94.53.1
total100.0.100.0.100.0.
GRless than 1%19.35.014.01.714.71.6
1-4%16.24.726.12.124.82.0
5-9%19.35.016.61.817.01.7
10-25%24.25.429.82.229.12.1
26-50%16.14.78.81.49.71.3
51-75%3.22.23.50.93.50.8
76-100%1.61.61.20.51.20.5
total100.0.100.0.100.0.
JUless than 1%..2.41.72.31.6
1-4%..8.23.08.12.9
5-9%..11.83.511.53.4
10-25%50.035.530.65.031.15.0
26-50%..17.64.117.14.1
51-75%..21.24.520.74.4
76-100%50.035.58.23.09.23.1
total100.0.100.0.100.0.
LUless than 1%..5.62.15.52.0
1-4%50.035.512.12.912.73.0
5-9%..12.73.012.52.9
10-25%50.035.535.44.335.64.3
26-50%..23.13.822.73.7
51-75%..8.02.47.82.4
76-100%..3.21.63.11.5
total100.0.100.0.100.0.
NEless than 1%..1.21.21.11.1
1-4%..8.53.18.23.0
5-9%..13.53.813.03.7
10-25%..33.05.131.85.0
26-50%33.327.424.74.725.04.6
51-75%66.727.310.93.412.83.6
76-100%..8.23.08.02.9
total100.0.100.0.100.0.
NWless than 1%..11.88.010.06.9
1-4%..29.411.325.09.9
5-9%33.327.811.88.015.08.2
10-25%33.327.817.69.420.09.1
26-50%..17.69.415.08.2
51-75%33.327.85.95.810.06.9
76-100%..5.95.85.05.0
total100.0.100.0.100.0.
OWless than 1%..2.22.22.02.0
1-4%20.018.113.15.013.74.9
5-9%60.022.117.45.621.65.8
10-25%..45.57.441.16.9
26-50%20.018.18.74.29.84.2
51-75%..10.94.69.84.2
76-100%..2.22.22.02.0
total100.0.100.0.100.0.
SGless than 1%20.012.711.42.712.02.7
1-4%..12.12.811.32.6
5-9%20.012.712.82.813.32.8
10-25%30.014.535.04.034.73.9
26-50%20.012.717.13.217.33.1
51-75%..7.92.37.32.1
76-100%10.09.53.61.64.01.6
total100.0.100.0.100.0.
SHless than 1%..16.76.316.76.3
1-4%..13.95.813.95.8
5-9%..8.34.78.34.7
10-25%..19.46.719.46.7
26-50%..19.46.719.46.7
51-75%..19.46.719.46.7
76-100%..2.82.82.82.8
total..100.0.100.0.
SOless than 1%..2.41.72.41.7
1-4%..6.02.66.02.6
5-9%..17.94.217.94.2
10-25%..21.44.521.44.5
26-50%..15.54.015.54.0
51-75%..17.94.217.94.2
76-100%..19.04.319.04.3
total..100.0.100.0.
SZless than 1%..8.33.37.73.0
1-4%16.715.322.24.921.84.7
5-9%16.715.316.74.416.74.2
10-25%33.319.327.85.328.25.1
26-50%16.715.322.24.921.84.7
51-75%16.715.31.41.42.61.8
76-100%..1.41.41.31.3
total100.0.100.0.100.0.
TGless than 1%..8.43.38.43.3
1-4%..4.22.44.22.4
5-9%..4.22.44.22.4
10-25%..28.15.328.15.3
26-50%..22.85.022.85.0
51-75%..18.24.618.24.6
76-100%..14.04.114.04.1
total..100.0.100.0.
TIless than 1%3.73.69.31.78.81.6
1-4%29.68.818.92.319.82.2
5-9%14.86.824.92.524.12.4
10-25%33.39.126.92.627.42.5
26-50%14.96.913.21.913.31.9
51-75%..4.91.24.51.1
76-100%3.73.62.00.82.10.8
total100.0.100.0.100.0.
URless than 1%20.012.74.53.17.33.6
1-4%10.09.56.73.87.33.6
5-9%20.012.718.05.818.35.3
10-25%20.012.726.96.725.76.0
26-50%30.014.634.67.233.86.5
51-75%..9.34.47.63.7
76-100%......
total100.0.100.0.100.0.
VDless than 1%9.18.75.51.45.71.4
1-4%9.18.716.02.315.72.3
5-9%27.313.414.82.315.42.2
10-25%18.211.626.82.826.42.7
26-50%18.211.618.82.518.82.4
51-75%..9.61.99.21.8
76-100%18.211.68.41.88.81.8
total100.0.100.0.100.0.
VSless than 1%6.93.06.91.66.91.4
1-4%32.85.521.32.623.92.4
5-9%20.54.722.02.721.72.3
10-25%30.15.430.22.930.22.6
26-50%8.23.215.52.313.81.9
51-75%1.41.42.91.12.50.9
76-100%..1.20.70.90.5
total100.0.100.0.100.0.
ZGless than 1%..14.39.714.39.7
1-4%..7.17.17.17.1
5-9%..7.17.17.17.1
10-25%..21.411.321.411.3
26-50%..21.411.321.411.3
51-75%..21.411.321.411.3
76-100%..7.17.17.17.1
total..100.0.100.0.
ZHless than 1%..3.41.53.41.5
1-4%..10.32.510.32.5
5-9%..8.32.38.32.3
10-25%..21.43.421.43.4
26-50%..18.63.218.63.2
51-75%..22.83.522.83.5
76-100%..15.23.015.23.0
total..100.0.100.0.
Switzerlandless than 1%11.61.97.50.57.80.5
1-4%20.72.415.60.716.00.6
5-9%20.52.415.70.716.10.6
10-25%29.22.828.80.828.80.8
26-50%12.52.016.90.716.50.6
51-75%2.91.09.40.58.80.5
76-100%2.71.06.20.45.90.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164818/151200

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %
AGless than 1%..3.2343.234
1-4%..3.6323.632
5-9%..4.0304.030
10-25%..11.31711.317
26-50%..11.71611.716
51-75%..4.8284.828
76-100%..10.51810.518
total..49.1249.12
AIless than 1%0.6691.0541.639
1-4%0.31002.0372.333
5-9%..0.31000.3100
10-25%..0.6690.669
26-50%..0.31000.3100
51-75%......
76-100%......
total1.0544.3185.212
ARless than 1%0.31001.3471.641
1-4%..1.3471.347
5-9%..1.9361.936
10-25%..1.3471.347
26-50%..1.6411.641
51-75%......
76-100%..0.31000.3100
total0.31007.768.05
BEless than 1%1.4506.5237.920
1-4%2.14121.61223.611
5-9%3.83026.01129.810
10-25%6.22345.9852.17
26-50%0.77127.11027.810
51-75%0.310016.41416.814
76-100%..11.61711.617
total14.415155.12169.52
BL/BSless than 1%..0.8700.870
1-4%..1.6491.649
5-9%..1.2571.257
10-25%..6.9216.921
26-50%..3.7313.731
51-75%..4.1294.129
76-100%..2.4392.439
total..20.7520.75
FRless than 1%..2.2402.240
1-4%0.7705.2256.023
5-9%..5.6245.624
10-25%..15.71315.713
26-50%0.41007.9208.219
51-75%..4.5284.528
76-100%..0.41000.4100
total1.15741.5342.63
GEless than 1%..0.9650.965
1-4%......
5-9%..0.51000.5100
10-25%..0.9650.965
26-50%..0.51000.5100
51-75%......
76-100%..0.41000.4100
total..3.1203.120
GLless than 1%0.8701.9432.736
1-4%0.41002.3392.736
5-9%0.7711.9432.736
10-25%1.5492.3393.929
26-50%0.41002.3392.736
51-75%..1.9431.943
76-100%0.41000.41000.870
total4.22813.11117.37
GRless than 1%4.22920.61224.811
1-4%3.53138.4941.98
5-9%4.22924.41128.610
10-25%5.22543.8849.07
26-50%3.53112.91616.414
51-75%0.7715.2265.924
76-100%0.31001.7452.141
total21.612147.03168.62
JUless than 1%..0.8700.870
1-4%..2.7362.736
5-9%..3.9303.930
10-25%0.410010.11710.516
26-50%..5.8245.824
51-75%..7.0217.021
76-100%0.41002.7363.134
total0.87033.1333.93
LUless than 1%..2.2372.237
1-4%0.31004.8255.124
5-9%..5.0245.024
10-25%0.310013.91314.213
26-50%..9.1179.117
51-75%..3.1313.131
76-100%..1.3491.349
total0.67039.4340.03
NEless than 1%..0.31000.3100
1-4%..2.3372.337
5-9%..3.7293.729
10-25%..9.0169.016
26-50%0.31006.7197.019
51-75%0.6703.0323.629
76-100%..2.2372.237
total1.05727.2528.24
NWless than 1%..0.8690.869
1-4%..1.9401.940
5-9%0.41000.8691.255
10-25%0.41001.2551.546
26-50%..1.2551.255
51-75%0.41000.41000.869
76-100%..0.41000.4100
total1.2556.5137.78
OWless than 1%..0.41000.4100
1-4%0.41002.2392.636
5-9%1.1573.0334.127
10-25%..7.8187.818
26-50%0.41001.5491.943
51-75%..1.9431.943
76-100%..0.41000.4100
total1.94317.2619.04
SGless than 1%0.7705.8246.523
1-4%..6.1236.123
5-9%0.7706.5237.221
10-25%1.15717.71218.812
26-50%0.7708.7199.418
51-75%..4.0294.029
76-100%0.41001.8442.240
total3.63150.6554.24
SHless than 1%..2.1382.138
1-4%..1.8421.842
5-9%..1.1561.156
10-25%..2.5342.534
26-50%..2.5342.534
51-75%..2.5342.534
76-100%..0.41000.4100
total..12.8312.83
SOless than 1%..0.8700.870
1-4%..1.9441.944
5-9%..5.7245.724
10-25%..6.8216.821
26-50%..4.9264.926
51-75%..5.7245.724
76-100%..6.1236.123
total..31.8331.83
SZless than 1%..2.2402.240
1-4%0.41005.8236.222
5-9%0.41004.3274.726
10-25%0.7707.2208.019
26-50%0.41005.8236.222
51-75%0.41000.41000.770
76-100%..0.41000.4100
total2.24026.1628.35
TGless than 1%..1.8391.839
1-4%..0.9570.957
5-9%..0.9570.957
10-25%..6.0196.019
26-50%..4.9234.923
51-75%..3.9253.925
76-100%..3.0303.030
total..21.3321.33
TIless than 1%0.410010.01810.418
1-4%2.93520.41223.311
5-9%1.45026.91028.310
10-25%3.23329.01032.39
26-50%1.45014.21515.714
51-75%..5.3255.325
76-100%0.41002.1412.537
total9.719108.03117.72
URless than 1%0.7700.7701.349
1-4%0.31001.0571.349
5-9%0.7702.6343.330
10-25%0.7704.0274.624
26-50%1.0575.1246.122
51-75%..1.4501.450
76-100%......
total3.33014.71118.09
VDless than 1%0.41005.2265.625
1-4%0.410015.11515.515
5-9%1.15814.11515.215
10-25%0.87125.31126.111
26-50%0.87117.81318.613
51-75%..9.1209.120
76-100%0.8718.0218.720
total4.23094.7398.92
VSless than 1%1.7455.8247.621
1-4%8.22017.91326.110
5-9%5.12518.51323.711
10-25%7.52125.41132.99
26-50%2.14113.01515.114
51-75%0.31002.4372.735
76-100%..1.0581.058
total25.01184.14109.13
ZGless than 1%..0.9680.968
1-4%..0.41000.4100
5-9%..0.41000.4100
10-25%..1.3531.353
26-50%..1.3531.353
51-75%..1.3531.353
76-100%..0.41000.4100
total..6.066.06
ZHless than 1%..1.8441.844
1-4%..5.3255.325
5-9%..4.2284.228
10-25%..10.91610.916
26-50%..9.5189.518
51-75%..11.61511.615
76-100%..7.8207.820
total..51.1251.12
Switzerlandless than 1%11.11879.9691.16
1-4%19.913166.64186.44
5-9%19.613167.54187.24
10-25%28.111306.83334.93
26-50%12.017179.94191.84
51-75%2.83599.76102.56
76-100%2.63865.6768.27
total96.161066.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164819/151201

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %±
inside perimeterless than 1%....11.15.213.52.57.74.311.61.9
1-4%7.77.4..19.46.619.92.930.87.420.82.5
5-9%38.513.5..19.46.619.42.920.56.520.52.4
10-25%23.011.7..27.87.530.63.425.67.029.12.7
26-50%7.77.4..13.95.812.42.412.95.412.42.0
51-75%15.410.0..2.82.72.71.2..2.91.0
76-100%7.77.4..5.63.81.60.92.62.52.61.0
total100.0...100.0.100.0.100.0.100.0.
outside perimeterless than 1%4.50.96.00.97.51.19.21.010.71.67.50.5
1-4%10.11.39.81.215.31.521.31.421.52.115.60.7
5-9%15.11.510.11.214.01.517.91.324.22.215.70.7
10-25%26.41.925.01.734.62.030.71.626.02.328.90.8
26-50%19.21.721.21.617.11.614.51.211.51.616.90.7
51-75%14.01.515.81.47.81.14.60.74.21.09.30.5
76-100%10.81.312.11.33.70.81.80.51.90.76.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%4.40.96.00.97.71.19.90.910.51.57.80.5
1-4%10.01.39.81.215.51.521.11.322.42.116.00.6
5-9%15.61.610.11.214.41.418.11.223.82.116.10.6
10-25%26.41.925.01.734.21.930.71.426.02.228.90.8
26-50%18.91.721.21.616.91.514.11.111.61.616.50.6
51-75%14.01.515.81.47.51.14.30.63.80.98.80.5
76-100%10.71.312.11.33.80.81.80.41.90.75.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164820/151202

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 1%....1.4508.7201.15811.218
1-4%0.4100..2.53812.8164.32919.913
5-9%1.845..2.53812.5162.83519.613
10-25%1.158..3.63119.7133.53127.911
26-50%0.4100..1.8457.9211.84511.917
51-75%0.771..0.41001.745..2.835
76-100%0.4100..0.7711.0580.41002.538
total4.727..13.01664.3713.81595.96
outside perimeterless than 1%8.82013.71615.11527.71114.21579.46
1-4%19.71322.51231.01064.5728.310165.94
5-9%29.61023.21228.51154.0831.910167.24
10-25%51.8757.3770.3692.9534.39306.73
26-50%37.6948.5834.6943.8915.115179.74
51-75%27.41136.2915.91513.9165.62598.96
76-100%21.21227.8117.6215.6252.53864.67
total196.01229.11202.92302.42131.931062.41
totalless than 1%8.82013.71616.61436.3915.21590.66
1-4%20.11322.51233.51077.2632.69185.94
5-9%31.41023.21231.01066.5734.79186.84
10-25%52.9757.3773.96112.6537.99334.63
26-50%38.0948.5836.4951.8816.914191.64
51-75%28.11136.2916.21415.7155.625101.76
76-100%21.51227.8118.3206.6232.83567.17
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164821/151203

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %± %±
inside perimeterless than 1%..8.63.721.96.56.93.020.05.77.74.311.71.9
1-4%7.77.417.25.09.74.632.85.512.04.630.87.420.72.4
5-9%38.413.522.45.517.25.920.54.716.05.220.56.520.52.4
10-25%23.211.734.56.226.86.930.15.428.06.425.67.029.22.7
26-50%7.77.410.34.017.15.98.23.218.05.412.95.412.42.0
51-75%15.410.03.42.42.42.41.41.44.02.8..2.91.0
76-100%7.77.43.42.44.93.4..2.02.02.62.52.61.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%5.30.73.70.811.71.86.91.613.41.810.71.67.50.5
1-4%9.90.915.01.617.12.121.32.624.82.321.52.115.60.7
5-9%12.41.015.81.613.81.922.02.715.71.924.22.215.70.7
10-25%25.71.337.12.127.32.430.22.931.32.526.02.328.90.8
26-50%20.31.216.21.620.72.215.52.39.71.611.51.616.90.7
51-75%15.01.08.51.26.21.42.91.14.01.04.21.09.30.5
76-100%11.50.93.70.83.31.01.20.71.10.61.90.76.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%5.20.64.20.812.81.76.91.414.21.710.51.57.80.5
1-4%9.90.915.21.516.31.923.92.423.22.122.42.116.00.6
5-9%12.61.016.51.614.21.821.72.315.71.823.82.116.10.6
10-25%25.61.336.82.027.32.330.22.630.92.326.02.228.90.8
26-50%20.11.215.61.520.32.113.81.910.71.511.61.616.50.6
51-75%15.01.08.01.15.81.22.50.94.01.03.80.98.80.5
76-100%11.50.93.70.83.50.90.90.51.20.61.90.75.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164822/151204

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 1%..1.8453.1331.7453.5311.15811.218
1-4%0.41003.6311.4508.2202.1414.32919.913
5-9%1.8454.7272.4385.1252.8352.83519.713
10-25%1.1587.2223.8307.5214.9263.53128.111
26-50%0.41002.2412.4382.1413.2331.84511.917
51-75%0.7710.7710.31000.31000.771..2.835
76-100%0.41000.7710.771..0.41000.41002.538
total4.72820.91314.21525.01117.61313.81596.26
outside perimeterless than 1%22.5126.92313.5155.82416.51414.21579.46
1-4%42.2927.41119.71217.91330.51028.310166.04
5-9%52.6828.81015.91418.51319.31331.910167.14
10-25%109.1567.8631.6925.41138.5834.39306.73
26-50%86.2629.61023.91113.01511.91715.115179.74
51-75%63.7715.5157.2222.4374.9265.62599.26
76-100%49.086.9233.8301.0581.4502.53864.67
total425.31182.82115.5384.14123.13131.931062.71
totalless than 1%22.5128.72016.6147.62120.01215.21590.66
1-4%42.6931.01021.11226.11032.6932.69186.04
5-9%54.4833.51018.41323.71122.11234.79186.84
10-25%110.2575.0635.3932.9943.4837.99334.73
26-50%86.6631.71026.31115.11415.11516.914191.74
51-75%64.4716.2147.5222.7355.6255.625102.06
76-100%49.487.6224.5271.0581.8452.83567.07
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164823/151205

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration %± %± %±
Western Juraless than 1%..3.40.93.30.9
1-4%7.77.410.61.510.51.5
5-9%38.313.517.31.918.01.9
10-25%23.311.826.52.226.42.1
26-50%7.77.418.51.918.21.9
51-75%15.310.014.01.714.01.7
76-100%7.77.49.61.49.61.4
total100.0.100.0.100.0.
Eastern Juraless than 1%..8.22.58.22.5
1-4%..8.22.58.22.5
5-9%..7.42.47.42.4
10-25%..26.14.026.14.0
26-50%..21.33.721.33.7
51-75%..14.03.114.03.1
76-100%..14.83.214.83.2
total..100.0.100.0.
Western Plateauless than 1%..3.41.73.41.7
1-4%..14.53.314.53.3
5-9%..16.23.416.23.4
10-25%..33.04.333.04.3
26-50%..18.63.618.63.6
51-75%..6.82.36.82.3
76-100%..7.52.47.52.4
total..100.0.100.0.
Central Plateauless than 1%..8.61.98.61.9
1-4%..10.42.110.42.1
5-9%..8.71.98.71.9
10-25%..21.82.821.82.8
26-50%..23.12.823.12.8
51-75%..16.72.516.72.5
76-100%..10.82.110.82.1
total..100.0.100.0.
Eastern Plateauless than 1%..5.11.25.11.2
1-4%..7.71.57.71.5
5-9%..8.91.68.91.6
10-25%..24.32.424.32.4
26-50%..20.82.320.82.3
51-75%..18.52.218.52.2
76-100%..14.72.014.72.0
total..100.0.100.0.
Western Pre-Alpsless than 1%..7.22.46.62.3
1-4%33.515.815.23.416.63.4
5-9%11.210.69.82.89.92.7
10-25%33.015.739.24.638.84.4
26-50%11.210.617.03.616.63.4
51-75%..10.72.99.92.7
76-100%11.210.60.90.91.71.2
total100.0.100.0.100.0.
Central Pre-Alpsless than 1%5.35.12.00.92.20.9
1-4%15.88.413.42.113.62.1
5-9%26.310.117.42.418.02.3
10-25%36.811.137.93.137.92.9
26-50%10.57.115.82.315.42.2
51-75%5.35.18.71.88.51.7
76-100%..4.71.34.41.2
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 1%37.517.114.62.515.52.5
1-4%12.511.717.72.717.52.7
5-9%12.511.712.12.312.12.3
10-25%..27.83.226.73.1
26-50%25.015.318.72.818.92.7
51-75%..5.11.64.91.5
76-100%12.511.74.01.44.41.4
total100.0.100.0.100.0.
Northwestern Alpsless than 1%13.36.24.21.75.81.8
1-4%13.36.217.63.216.92.9
5-9%23.37.717.63.218.63.0
10-25%33.38.633.84.033.73.6
26-50%10.05.516.23.115.12.7
51-75%3.33.36.32.15.81.8
76-100%3.33.34.21.74.11.5
total100.0.100.0.100.0.
Central Alpsless than 1%13.38.83.12.25.12.5
1-4%13.38.815.74.615.34.1
5-9%13.38.817.54.816.74.2
10-25%26.711.526.85.626.85.0
26-50%26.711.530.45.829.75.2
51-75%6.76.56.43.16.52.8
76-100%......
total100.0.100.0.100.0.
Northeastern Alpsless than 1%22.29.811.33.813.53.6
1-4%5.65.416.94.514.63.8
5-9%22.39.815.54.316.94.0
10-25%38.911.526.75.329.24.8
26-50%5.65.416.94.514.63.8
51-75%..8.43.36.72.7
76-100%5.65.44.22.44.52.2
total100.0.100.0.100.0.
Southwestern Alpsless than 1%6.93.06.91.66.91.4
1-4%32.85.521.32.623.92.4
5-9%20.54.722.02.721.72.3
10-25%30.15.430.22.930.22.6
26-50%8.23.215.52.313.81.9
51-75%1.41.42.91.12.50.9
76-100%..1.20.70.90.5
total100.0.100.0.100.0.
Southeastern Alpsless than 1%20.05.713.41.814.21.7
1-4%12.04.624.82.323.22.1
5-9%16.05.215.71.915.71.8
10-25%28.06.431.32.530.92.3
26-50%18.05.49.71.610.71.5
51-75%4.02.84.01.04.01.0
76-100%2.02.01.10.61.20.6
total100.0.100.0.100.0.
Southern Alpsless than 1%7.74.310.71.610.51.5
1-4%30.87.421.52.122.42.1
5-9%20.56.524.22.223.82.1
10-25%25.67.026.02.326.02.2
26-50%12.95.411.51.611.61.6
51-75%..4.21.03.80.9
76-100%2.62.51.90.71.90.7
total100.0.100.0.100.0.
Switzerlandless than 1%11.71.97.50.57.80.5
1-4%20.72.415.70.716.10.6
5-9%20.42.415.80.716.10.6
10-25%29.22.728.90.829.00.8
26-50%12.42.016.90.716.50.6
51-75%2.91.09.20.58.70.5
76-100%2.61.06.10.45.80.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164824/151206

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 1%..5.0265.026
1-4%0.410015.71416.114
5-9%1.84525.71127.510
10-25%1.15839.3840.38
26-50%0.410027.51027.810
51-75%0.77120.71221.412
76-100%0.410014.31514.615
total4.627148.22152.82
Eastern Juraless than 1%..4.0304.030
1-4%..4.0304.030
5-9%..3.6323.632
10-25%..12.61512.615
26-50%..10.31810.318
51-75%..6.7236.723
76-100%..7.1227.122
total..48.2248.22
Western Plateauless than 1%..1.6491.649
1-4%..7.0237.023
5-9%..7.8217.821
10-25%..16.01416.014
26-50%..9.0209.020
51-75%..3.3343.334
76-100%..3.6333.633
total..48.4348.43
Central Plateauless than 1%..5.9225.922
1-4%..7.1207.120
5-9%..6.0226.022
10-25%..14.91314.913
26-50%..15.91315.913
51-75%..11.51511.515
76-100%..7.4197.419
total..68.7268.72
Eastern Plateauless than 1%..5.7245.724
1-4%..8.6208.620
5-9%..10.01810.018
10-25%..27.21027.210
26-50%..23.21123.211
51-75%..20.71220.712
76-100%..16.41416.414
total..111.92111.92
Western Pre-Alpsless than 1%..3.0343.034
1-4%1.1576.3237.421
5-9%0.41004.1294.428
10-25%1.15816.31317.412
26-50%0.41007.0217.421
51-75%..4.4284.428
76-100%0.41000.41000.770
total3.33341.4444.84
Central Pre-Alpsless than 1%0.41001.8442.240
1-4%1.15812.21613.315
5-9%1.84415.81417.613
10-25%2.53734.4936.98
26-50%0.77114.31515.114
51-75%0.41007.9218.220
76-100%..4.3284.328
total6.82290.7397.52
Eastern Pre-Alpsless than 1%1.15710.41711.416
1-4%0.410012.51612.915
5-9%0.41008.6198.919
10-25%..19.61219.612
26-50%0.77113.21513.915
51-75%..3.6313.631
76-100%0.41002.9353.233
total2.93570.7373.63
Northwestern Alpsless than 1%1.4502.1403.631
1-4%1.4508.91910.417
5-9%2.5378.91911.416
10-25%3.63117.21320.711
26-50%1.1578.2209.318
51-75%0.41003.2333.631
76-100%0.41002.2402.537
total10.71750.8561.54
Central Alpsless than 1%0.7700.7701.449
1-4%0.7703.4304.127
5-9%0.7703.8294.526
10-25%1.4495.8227.220
26-50%1.4496.6228.019
51-75%0.31001.4501.744
76-100%......
total5.22421.8927.07
Northeastern Alpsless than 1%1.4492.9344.327
1-4%0.41004.3284.726
5-9%1.4503.9295.425
10-25%2.5376.8219.317
26-50%0.41004.3274.726
51-75%..2.1402.140
76-100%0.41001.1571.449
total6.42225.4831.96
Southwestern Alpsless than 1%1.7455.8247.621
1-4%8.22017.91326.110
5-9%5.12518.51323.711
10-25%7.52125.41132.99
26-50%2.14113.01515.114
51-75%0.31002.4372.735
76-100%..1.0581.058
total25.01184.14109.13
Southeastern Alpsless than 1%3.53116.51420.012
1-4%2.14130.51032.69
5-9%2.83519.31322.112
10-25%4.92638.5843.48
26-50%3.23311.91715.115
51-75%0.7714.9265.625
76-100%0.41001.4501.845
total17.613123.13140.62
Southern Alpsless than 1%1.15814.21515.215
1-4%4.32928.31032.69
5-9%2.83531.91034.79
10-25%3.53134.3937.99
26-50%1.84515.11516.914
51-75%..5.6255.625
76-100%0.41002.5382.835
total13.815131.93145.72
Switzerlandless than 1%11.31879.6690.96
1-4%20.013166.84186.84
5-9%19.713167.94187.64
10-25%28.111308.33336.43
26-50%12.017179.74191.74
51-75%2.83598.46101.36
76-100%2.53864.6767.17
total96.461065.311161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164825/151207

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %± %±
inside perimeter0%100.0...93.62.397.12.197.62.492.74.195.21.3
1-50%....2.71.6..2.42.42.42.41.80.8
over 50%....3.61.82.92.0..4.93.42.91.0
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeter0%89.91.381.31.493.60.895.91.496.11.197.90.790.90.5
1-50%5.11.010.21.12.10.5....1.30.64.10.4
over 50%5.00.98.51.04.30.74.11.43.91.10.80.54.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0%90.21.381.31.493.60.896.11.196.31.097.40.891.30.5
1-50%5.00.910.21.12.20.5..0.30.31.40.64.00.3
over 50%4.80.98.51.04.20.63.91.13.41.01.20.54.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164826/151208

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0%4.727..36.5922.61114.51513.61691.96
1-50%....1.158..0.41000.41001.845
over 50%....1.4500.771..0.7712.835
total4.727..39.0923.31114.81514.61596.46
outside perimeter0%170.12209.02286.4271.2597.23132.53966.41
1-50%9.71926.2116.423....1.84544.19
over 50%9.41921.91213.1163.1333.9301.15852.48
total189.22257.11305.9274.34101.13135.431062.91
total0%174.82209.02322.9293.83111.73146.121058.31
1-50%9.71926.2117.522..0.41002.14145.89
over 50%9.41921.91214.5153.8303.9301.84555.38
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164827/151209

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging %± %± %±
AG0%..76.23.876.23.8
1-50%..16.43.416.43.4
over 50%..7.42.47.42.4
total..100.0.100.0.
AI0%100.0.92.47.593.86.1
1-50%......
over 50%..7.67.56.26.1
total100.0.100.0.100.0.
AR0%100.0.91.75.892.05.5
1-50%..4.24.24.04.0
over 50%..4.24.24.04.0
total100.0.100.0.100.0.
BE0%90.54.587.41.687.71.5
1-50%4.73.35.31.15.31.0
over 50%4.73.37.31.27.11.2
total100.0.100.0.100.0.
BL/BS0%..78.45.878.45.8
1-50%..9.84.29.84.2
over 50%..11.84.611.84.6
total..100.0.100.0.
FR0%100.0.90.12.990.32.8
1-50%..2.71.52.61.5
over 50%..7.22.57.02.4
total100.0.100.0.100.0.
GE0%..100.0.100.0.
1-50%......
over 50%......
total..100.0.100.0.
GL0%100.0.97.12.997.82.2
1-50%......
over 50%..2.92.92.22.2
total100.0.100.0.100.0.
GR0%98.41.696.70.996.90.8
1-50%1.61.60.50.30.60.4
over 50%..2.90.82.50.7
total100.0.100.0.100.0.
JU0%100.0.95.32.395.42.3
1-50%..1.21.21.21.2
over 50%..3.52.03.52.0
total100.0.100.0.100.0.
LU0%100.0.88.12.988.22.9
1-50%..1.61.11.61.1
over 50%..10.32.710.22.7
total100.0.100.0.100.0.
NE0%100.0.89.43.489.83.3
1-50%..7.12.86.82.7
over 50%..3.52.03.41.9
total100.0.100.0.100.0.
NW0%100.0.100.0.100.0.
1-50%......
over 50%......
total100.0.100.0.100.0.
OW0%80.018.191.34.290.24.2
1-50%..6.53.75.93.3
over 50%20.018.12.22.23.92.7
total100.0.100.0.100.0.
SG0%90.09.493.62.193.32.0
1-50%10.09.54.31.74.71.7
over 50%..2.11.22.01.1
total100.0.100.0.100.0.
SH0%..80.66.480.66.4
1-50%..16.76.316.76.3
over 50%..2.82.82.82.8
total..100.0.100.0.
SO0%..88.13.688.13.6
1-50%..11.93.611.93.6
over 50%......
total..100.0.100.0.
SZ0%100.0.88.93.789.83.5
1-50%..1.41.41.31.3
over 50%..9.73.59.03.3
total100.0.100.0.100.0.
TG0%..77.65.077.65.0
1-50%..9.83.59.83.5
over 50%..12.64.012.64.0
total..100.0.100.0.
TI0%88.96.098.00.897.30.9
1-50%3.73.61.00.61.20.6
over 50%7.45.01.00.61.50.7
total100.0.100.0.100.0.
UR0%100.0.95.53.196.32.6
1-50%......
over 50%..4.53.13.72.6
total100.0.100.0.100.0.
VD0%90.98.691.61.891.61.7
1-50%..3.21.13.01.1
over 50%9.18.75.21.45.41.4
total100.0.100.0.100.0.
VS0%97.31.996.31.296.51.0
1-50%......
over 50%2.71.93.71.23.51.0
total100.0.100.0.100.0.
ZG0%..57.113.757.113.7
1-50%..14.39.714.39.7
over 50%..28.612.528.612.5
total..100.0.100.0.
ZH0%..86.22.986.22.9
1-50%..9.72.59.72.5
over 50%..4.11.74.11.7
total..100.0.100.0.
Switzerland0%95.21.390.90.591.20.5
1-50%1.80.84.20.44.00.3
over 50%3.01.04.90.44.80.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164828/151210

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonpercentage of salvage logging1000 ha± %1000 ha± %1000 ha± %
AG0%..37.4537.45
1-50%..8.0218.021
over 50%..3.6323.632
total..49.1249.12
AI0%1.0543.9204.914
1-50%......
over 50%..0.31000.3100
total1.0544.3185.212
AR0%0.31007.197.48
1-50%..0.31000.3100
over 50%..0.31000.3100
total0.31007.768.05
BE0%13.016135.63148.62
1-50%0.7718.2208.919
over 50%0.77111.31712.016
total14.415155.12169.52
BL/BS0%..16.2916.29
1-50%..2.0432.043
over 50%..2.4392.439
total..20.7520.75
FR0%1.15737.3538.54
1-50%..1.1571.157
over 50%..3.0343.034
total1.15741.5342.63
GE0%..3.1203.120
1-50%......
over 50%......
total..3.1203.120
GL0%4.22812.71116.97
1-50%......
over 50%..0.41000.4100
total4.22813.11117.37
GR0%21.312142.13163.42
1-50%0.31000.7711.058
over 50%..4.2294.229
total21.612147.03168.62
JU0%0.87031.5432.34
1-50%..0.41000.4100
over 50%..1.2571.257
total0.87033.1333.93
LU0%0.67034.7535.35
1-50%..0.6700.670
over 50%..4.1264.126
total0.67039.4340.03
NE0%1.05724.3625.36
1-50%..1.9401.940
over 50%..1.0571.057
total1.05727.2528.24
NW0%1.2556.5127.78
1-50%......
over 50%......
total1.2556.5137.78
OW0%1.54915.7817.26
1-50%..1.1571.157
over 50%0.41000.41000.770
total1.94317.2619.04
SG0%3.33347.3550.65
1-50%0.41002.2402.537
over 50%..1.1571.157
total3.63150.6554.24
SH0%..10.3910.39
1-50%..2.1382.138
over 50%..0.41000.4100
total..12.8312.83
SO0%..28.0528.05
1-50%..3.8303.830
over 50%......
total..31.8331.83
SZ0%2.24023.2725.46
1-50%..0.41000.4100
over 50%..2.5362.536
total2.24026.1628.35
TG0%..16.5716.57
1-50%..2.1362.136
over 50%..2.7312.731
total..21.3321.33
TI0%8.620105.83114.53
1-50%0.41001.1581.450
over 50%0.7711.1581.844
total9.719108.03117.72
UR0%3.33014.01217.39
1-50%......
over 50%..0.7700.770
total3.33014.71118.09
VD0%3.83186.8390.63
1-50%..3.0353.035
over 50%0.41004.9275.326
total4.23094.7398.92
VS0%24.41181.04105.33
1-50%......
over 50%0.7713.1333.830
total25.01184.14109.13
ZG0%..3.4253.425
1-50%..0.9680.968
over 50%..1.7441.744
total..6.066.06
ZH0%..44.1444.14
1-50%..4.9264.926
over 50%..2.1402.140
total..51.1251.12
Switzerland0%91.56968.711060.21
1-50%1.84544.9946.79
over 50%2.83552.4855.28
total96.161066.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164829/151211

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · percentage of salvage logging · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assignedpercentage of salvage logging %± %± %± %± %± %±
inside perimeter0%100.0...91.74.696.21.492.34.395.21.3
1-50%....5.63.81.10.82.62.51.80.8
over 50%....2.82.72.71.25.13.52.91.0
total100.0...100.0.100.0.100.0.100.0.
outside perimeter0%88.31.482.21.592.21.195.30.797.90.890.90.5
1-50%6.71.19.41.12.50.70.90.31.30.64.20.4
over 50%5.00.98.41.15.30.93.80.60.80.54.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.
total0%88.51.482.21.592.21.195.50.697.30.891.30.5
1-50%6.51.19.41.12.70.70.90.31.50.64.00.3
over 50%4.90.98.41.15.20.93.60.61.20.54.80.4
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164830/151212
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