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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · type of next treatment (interview survey) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtype of next treatment (interview survey) %± %± %± %± %± %± %±
inside perimeterno treatment10.19.622.29.828.09.054.310.254.715.066.78.243.84.5
tending10.09.522.29.88.05.44.24.19.18.7..7.52.4
thinning30.014.522.29.8..8.35.6..3.03.08.42.5
establishment cut30.014.5..8.05.44.24.127.213.4..7.42.4
removal cut10.09.5..4.03.9......1.71.2
plentering..............
thinning of mountain forest10.09.533.311.148.010.029.19.39.18.724.27.528.84.1
coppice cut..........6.14.21.71.2
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest....4.03.9......0.80.8
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterno treatment8.20.824.91.834.32.556.02.862.92.468.62.332.70.7
tending12.00.99.61.25.21.24.91.25.61.11.80.78.10.5
thinning31.71.314.61.516.21.94.91.23.91.06.01.217.80.6
establishment cut15.01.010.71.312.41.710.01.712.61.64.51.011.90.6
removal cut6.00.73.40.81.90.71.00.61.50.62.50.83.60.3
plentering6.60.79.31.23.51.00.30.31.90.70.20.24.80.4
thinning of mountain forest0.90.321.51.714.91.920.42.39.01.411.01.610.10.5
coppice cut0.50.2........3.50.90.60.1
conversion0.70.20.70.4......0.70.40.50.1
transformation0.20.10.20.20.30.3......0.10.1
sanitary felling1.70.41.40.50.80.51.30.6..0.20.21.10.2
plentering in broadleaf forest10.80.91.10.47.01.3......5.00.4
tending of forest edge1.60.40.50.32.20.8..1.20.50.50.41.10.2
planting0.10.1..........0.00.0
agrosilvicultural treatments4.00.62.10.61.40.61.30.71.50.60.50.42.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalno treatment8.20.824.81.833.92.455.92.762.72.368.42.233.10.7
tending12.00.910.01.25.31.14.81.25.71.11.60.68.10.5
thinning31.71.314.81.515.21.85.11.23.80.95.81.117.50.6
establishment cut15.11.010.31.312.11.69.61.613.01.64.11.011.70.6
removal cut6.00.73.30.72.00.70.90.51.40.62.30.73.50.3
plentering6.60.79.01.23.30.90.30.31.90.70.20.24.60.4
thinning of mountain forest1.00.321.91.717.01.921.02.29.01.412.01.610.80.5
coppice cut0.50.2........3.70.90.70.1
conversion0.70.20.70.3......0.70.40.40.1
transformation0.20.10.20.20.30.3......0.10.1
sanitary felling1.70.41.40.50.80.41.20.6..0.20.21.10.2
plentering in broadleaf forest10.70.91.00.46.81.3......4.80.4
tending of forest edge1.60.40.50.32.00.7..1.20.50.50.31.10.2
planting0.10.1..........0.00.0
agrosilvicultural treatments4.00.62.10.61.30.61.20.61.40.60.50.32.30.3
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 #162049/148428

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · type of next treatment (interview survey) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedtype of next treatment (interview survey)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterno treatment0.41001.4502.4384.5272.1417.82118.614
tending0.41001.4500.7710.31000.4100..3.233
thinning1.1581.450..0.771..0.41003.632
establishment cut1.158..0.7710.31001.158..3.233
removal cut0.4100..0.3100......0.771
plentering..............
thinning of mountain forest0.41002.2414.1282.4370.41002.83512.217
coppice cut..........0.7710.771
conversion..............
transformation..............
sanitary felling..............
plentering in broadleaf forest....0.3100......0.3100
tending of forest edge..............
planting..............
agrosilvicultural treatments..............
total3.6326.5238.6198.2203.93011.71742.59
outside perimeterno treatment35.41050.5843.8859.5691.2597.44377.82
tending51.9819.5136.6235.2258.1202.53893.76
thinning136.3429.61020.8125.2255.6258.520205.94
establishment cut64.4721.61215.91410.61718.3136.423137.25
removal cut25.8116.9232.4381.0582.1413.53141.79
plentering28.61118.8134.5270.31002.8350.410055.48
thinning of mountain forest3.93043.6819.01321.61213.01615.614116.85
coppice cut2.141........5.0267.122
conversion2.9351.450......1.1585.426
transformation0.7710.41000.3100......1.450
sanitary felling7.5222.9351.0581.450..0.410013.216
plentering in broadleaf forest46.582.2419.019......57.67
tending of forest edge6.8231.1582.835..1.8450.77113.116
planting0.4100..........0.4100
agrosilvicultural treatments17.2144.3291.8451.4502.1410.77127.511
total430.41202.72127.83106.23145.02142.131154.11
totalno treatment35.81051.9746.2863.9693.34105.24396.42
tending52.2820.9137.3215.5258.4202.53896.96
thinning137.4431.01020.8125.8245.6258.919209.54
establishment cut65.5721.61216.51411.01719.3136.423140.35
removal cut26.1116.9232.8351.0582.1413.53142.49
plentering28.61118.8134.5270.31002.8350.410055.48
thinning of mountain forest4.32945.8823.21124.01113.41618.413129.05
coppice cut2.141........5.7257.821
conversion2.9351.450......1.1585.426
transformation0.7710.41000.3100......1.450
sanitary felling7.5222.9351.0581.450..0.410013.216
plentering in broadleaf forest46.582.2419.319......58.07
tending of forest edge6.8231.1582.835..1.8450.77113.116
planting0.4100..........0.4100
agrosilvicultural treatments17.2144.3291.8451.4502.1410.77127.511
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162050/148429

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · type of next treatment (interview survey) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontype of next treatment (interview survey) %± %± %±
Western Jurano treatment12.912.012.71.612.71.6
tending..7.81.37.61.3
thinning24.915.322.62.022.62.0
establishment cut37.317.114.61.715.01.7
removal cut12.411.74.91.15.11.1
plentering..16.01.815.71.7
thinning of mountain forest12.411.72.40.72.50.8
coppice cut..0.70.40.70.4
conversion......
transformation......
sanitary felling..2.60.82.50.8
plentering in broadleaf forest..4.71.04.61.0
tending of forest edge..0.90.50.90.5
planting..0.20.20.20.2
agrosilvicultural treatments..9.91.59.81.4
total100.0.100.0.100.0.
Eastern Jurano treatment..9.12.69.02.6
tending..14.13.214.03.1
thinning100.0.41.34.541.74.5
establishment cut..10.82.810.72.8
removal cut..5.82.15.72.1
plentering......
thinning of mountain forest......
coppice cut......
conversion..0.80.80.80.8
transformation......
sanitary felling..0.80.80.80.8
plentering in broadleaf forest..14.93.214.83.2
tending of forest edge..2.51.42.51.4
planting......
agrosilvicultural treatments......
total100.0.100.0.100.0.
Western Plateauno treatment..8.52.68.52.6
tending..20.33.720.33.7
thinning..28.64.228.64.2
establishment cut..20.03.720.03.7
removal cut..10.92.910.92.9
plentering......
thinning of mountain forest......
coppice cut..1.71.21.71.2
conversion......
transformation......
sanitary felling..4.21.94.21.9
plentering in broadleaf forest......
tending of forest edge..1.71.21.71.2
planting......
agrosilvicultural treatments..4.11.84.11.8
total..100.0.100.0.
Central Plateauno treatment..4.11.34.01.3
tending100.0.13.12.313.52.3
thinning..39.63.339.43.3
establishment cut..21.22.721.12.7
removal cut..5.41.55.41.5
plentering..3.61.33.61.2
thinning of mountain forest..0.50.50.40.4
coppice cut......
conversion..1.40.81.30.8
transformation..0.90.60.90.6
sanitary felling..0.90.60.90.6
plentering in broadleaf forest..8.11.88.11.8
tending of forest edge..1.40.81.30.8
planting......
agrosilvicultural treatments......
total100.0.100.0.100.0.
Eastern Plateauno treatment..4.71.24.71.2
tending..13.21.913.21.9
thinning..36.02.736.02.7
establishment cut..10.71.710.71.7
removal cut..6.01.36.01.3
plentering..1.30.61.30.6
thinning of mountain forest......
coppice cut..0.30.30.30.3
conversion..1.30.61.30.6
transformation......
sanitary felling..0.60.40.60.4
plentering in broadleaf forest..23.32.423.32.4
tending of forest edge..2.20.82.20.8
planting......
agrosilvicultural treatments..0.30.30.30.3
total..100.0.100.0.
Western Pre-Alpsno treatment..20.43.720.33.6
tending..13.23.113.03.0
thinning..17.23.417.13.4
establishment cut..20.53.720.33.6
removal cut..1.61.21.61.1
plentering..4.11.84.11.8
thinning of mountain forest100.0.17.23.417.93.5
coppice cut......
conversion......
transformation..0.80.80.80.8
sanitary felling..2.41.42.41.4
plentering in broadleaf forest......
tending of forest edge..0.80.80.80.8
planting......
agrosilvicultural treatments..1.61.11.61.1
total100.0.100.0.100.0.
Central Pre-Alpsno treatment..19.52.419.22.4
tending25.021.78.71.78.91.7
thinning25.021.715.92.216.02.2
establishment cut..8.31.78.21.6
removal cut..4.31.24.31.2
plentering..16.62.216.42.2
thinning of mountain forest50.025.020.92.421.42.4
coppice cut......
conversion..1.10.61.10.6
transformation......
sanitary felling......
plentering in broadleaf forest..2.20.92.10.9
tending of forest edge..0.70.50.70.5
planting......
agrosilvicultural treatments..1.80.81.80.8
total100.0.100.0.100.0.
Eastern Pre-Alpsno treatment..26.03.025.63.0
tending..6.21.76.21.7
thinning..19.72.819.42.7
establishment cut66.727.317.32.618.02.6
removal cut..1.00.70.90.7
plentering..5.81.65.71.6
thinning of mountain forest..8.21.98.11.9
coppice cut......
conversion......
transformation..0.50.50.50.5
sanitary felling..1.40.81.40.8
plentering in broadleaf forest33.327.38.72.09.02.0
tending of forest edge..3.41.33.31.2
planting......
agrosilvicultural treatments..1.90.91.90.9
total100.0.100.0.100.0.
Northwestern Alpsno treatment30.812.837.43.836.93.6
tending23.111.78.62.29.72.2
thinning23.111.710.42.411.42.4
establishment cut..7.32.06.81.9
removal cut..3.11.42.81.3
plentering..0.60.60.60.6
thinning of mountain forest23.111.725.83.425.63.3
coppice cut......
conversion..0.60.60.60.6
transformation......
sanitary felling..3.11.42.91.3
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..3.11.42.91.3
total100.0.100.0.100.0.
Central Alpsno treatment25.012.646.05.943.15.4
tending8.38.04.12.34.72.3
thinning..13.94.111.93.5
establishment cut..6.93.05.92.6
removal cut8.38.02.71.93.52.0
plentering......
thinning of mountain forest58.314.325.05.129.75.0
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..1.41.41.21.2
total100.0.100.0.100.0.
Northeastern Alpsno treatment40.015.541.95.341.75.1
tending10.09.53.52.04.22.0
thinning..10.53.39.43.0
establishment cut..5.82.55.22.3
removal cut..3.52.03.11.8
plentering..1.21.21.01.0
thinning of mountain forest50.015.923.24.626.04.5
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest..9.33.18.32.8
tending of forest edge..1.21.21.01.0
planting......
agrosilvicultural treatments......
total100.0.100.0.100.0.
Southwestern Alpsno treatment54.310.256.02.855.92.7
tending4.24.14.91.24.81.2
thinning8.35.64.91.25.11.2
establishment cut4.24.110.01.79.61.6
removal cut..1.00.60.90.5
plentering..0.30.30.30.3
thinning of mountain forest29.19.320.42.321.02.2
coppice cut......
conversion......
transformation......
sanitary felling..1.30.61.20.6
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..1.30.71.20.6
total100.0.100.0.100.0.
Southeastern Alpsno treatment54.715.062.92.462.72.3
tending9.18.75.61.15.71.1
thinning..3.91.03.80.9
establishment cut27.213.412.61.613.01.6
removal cut..1.50.61.40.6
plentering..1.90.71.90.7
thinning of mountain forest9.18.79.01.49.01.4
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest......
tending of forest edge..1.20.51.20.5
planting......
agrosilvicultural treatments..1.50.61.40.6
total100.0.100.0.100.0.
Southern Alpsno treatment66.78.268.62.368.42.2
tending..1.80.71.60.6
thinning3.03.06.01.25.81.1
establishment cut..4.51.04.11.0
removal cut..2.50.82.30.7
plentering..0.20.20.20.2
thinning of mountain forest24.27.511.01.612.01.6
coppice cut6.14.23.50.93.70.9
conversion..0.70.40.70.4
transformation......
sanitary felling..0.20.20.20.2
plentering in broadleaf forest......
tending of forest edge..0.50.40.50.3
planting......
agrosilvicultural treatments..0.50.40.50.3
total100.0.100.0.100.0.
Switzerlandno treatment43.84.532.70.733.10.7
tending7.42.48.20.58.10.5
thinning8.42.517.80.617.50.6
establishment cut7.52.411.90.611.70.5
removal cut1.61.23.60.33.60.3
plentering..4.80.44.60.3
thinning of mountain forest28.84.110.10.510.80.5
coppice cut1.71.20.60.10.70.1
conversion..0.50.10.40.1
transformation..0.10.10.10.1
sanitary felling..1.20.21.10.2
plentering in broadleaf forest0.80.85.00.44.80.4
tending of forest edge..1.20.21.10.2
planting..0.00.00.00.0
agrosilvicultural treatments..2.40.32.30.3
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162051/148430

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · type of next treatment (interview survey) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontype of next treatment (interview survey)1000 ha± %1000 ha± %1000 ha± %
Western Jurano treatment0.410019.31319.713
tending..11.81711.817
thinning0.77134.3935.09
establishment cut1.15822.11223.212
removal cut0.41007.5217.821
plentering..24.31124.311
thinning of mountain forest0.41003.6313.930
coppice cut..1.1581.158
conversion......
transformation......
sanitary felling..3.9303.930
plentering in broadleaf forest..7.1227.122
tending of forest edge..1.4501.450
planting..0.41000.4100
agrosilvicultural treatments..15.11515.115
total2.935151.82154.72
Eastern Jurano treatment..4.4294.429
tending..6.7236.723
thinning0.410019.71120.111
establishment cut..5.1265.126
removal cut..2.8372.837
plentering......
thinning of mountain forest......
coppice cut......
conversion..0.41000.4100
transformation......
sanitary felling..0.41000.4100
plentering in broadleaf forest..7.1227.122
tending of forest edge..1.2571.257
planting......
agrosilvicultural treatments......
total0.410047.8248.22
Western Plateauno treatment..4.1304.130
tending..9.9189.918
thinning..14.01514.015
establishment cut..9.8199.819
removal cut..5.3275.327
plentering......
thinning of mountain forest......
coppice cut..0.8700.870
conversion......
transformation......
sanitary felling..2.1442.144
plentering in broadleaf forest......
tending of forest edge..0.8700.870
planting......
agrosilvicultural treatments..2.0442.044
total..48.7348.73
Central Plateauno treatment..2.8332.833
tending0.31009.0179.317
thinning..27.2927.29
establishment cut..14.61314.613
removal cut..3.7283.728
plentering..2.5352.535
thinning of mountain forest..0.31000.3100
coppice cut......
conversion..0.9570.957
transformation..0.6710.671
sanitary felling..0.6710.671
plentering in broadleaf forest..5.6235.623
tending of forest edge..0.9570.957
planting......
agrosilvicultural treatments......
total0.310068.8269.12
Eastern Plateauno treatment..5.4255.425
tending..15.01415.014
thinning..40.8840.88
establishment cut..12.21612.216
removal cut..6.8226.822
plentering..1.4501.450
thinning of mountain forest......
coppice cut..0.41000.4100
conversion..1.4501.450
transformation......
sanitary felling..0.7710.771
plentering in broadleaf forest..26.51026.510
tending of forest edge..2.5382.538
planting......
agrosilvicultural treatments..0.41000.4100
total..113.32113.32
Western Pre-Alpsno treatment..9.2189.218
tending..5.9235.923
thinning..7.8207.820
establishment cut..9.3189.318
removal cut..0.7700.770
plentering..1.9441.944
thinning of mountain forest0.41007.8208.120
coppice cut......
conversion......
transformation..0.41000.4100
sanitary felling..1.1581.158
plentering in broadleaf forest......
tending of forest edge..0.41000.4100
planting......
agrosilvicultural treatments..0.7710.771
total0.410045.1445.54
Central Pre-Alpsno treatment..19.41319.413
tending0.41008.6209.019
thinning0.410015.81416.114
establishment cut..8.2208.220
removal cut..4.3284.328
plentering..16.51416.514
thinning of mountain forest0.77120.81221.512
coppice cut......
conversion..1.1581.158
transformation......
sanitary felling......
plentering in broadleaf forest..2.2402.240
tending of forest edge..0.7710.771
planting......
agrosilvicultural treatments..1.8451.845
total1.45099.32100.82
Eastern Pre-Alpsno treatment..19.31219.312
tending..4.6274.627
thinning..14.61414.614
establishment cut0.77112.91513.615
removal cut..0.7710.771
plentering..4.3284.328
thinning of mountain forest..6.1236.123
coppice cut......
conversion......
transformation..0.41000.4100
sanitary felling..1.1571.157
plentering in broadleaf forest0.41006.4236.822
tending of forest edge..2.5372.537
planting......
agrosilvicultural treatments..1.4501.450
total1.15774.3375.33
Northwestern Alpsno treatment1.45021.81123.210
tending1.1575.0266.123
thinning1.1576.1237.221
establishment cut..4.3284.328
removal cut..1.8441.844
plentering..0.41000.4100
thinning of mountain forest1.15715.01416.113
coppice cut......
conversion..0.41000.4100
transformation......
sanitary felling..1.8451.845
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..1.8441.844
total4.62758.3462.94
Central Alpsno treatment1.05711.51612.515
tending0.31001.0571.449
thinning..3.5313.531
establishment cut..1.7441.744
removal cut0.31000.7701.057
plentering......
thinning of mountain forest2.4376.2228.618
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..0.31000.3100
total4.12725.0829.17
Northeastern Alpsno treatment1.44912.91414.313
tending0.41001.1571.449
thinning..3.2323.232
establishment cut..1.8441.844
removal cut..1.1571.157
plentering..0.41000.4100
thinning of mountain forest1.8447.2219.018
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest..2.9342.934
tending of forest edge..0.41000.4100
planting......
agrosilvicultural treatments......
total3.63030.8634.45
Southwestern Alpsno treatment4.52759.5663.96
tending0.31005.2255.525
thinning0.7715.2255.824
establishment cut0.310010.61711.017
removal cut..1.0581.058
plentering..0.31000.3100
thinning of mountain forest2.43721.61224.011
coppice cut......
conversion......
transformation......
sanitary felling..1.4501.450
plentering in broadleaf forest......
tending of forest edge......
planting......
agrosilvicultural treatments..1.4501.450
total8.220106.23114.43
Southeastern Alpsno treatment2.14191.2593.34
tending0.41008.1208.420
thinning..5.6255.625
establishment cut1.15818.31319.313
removal cut..2.1412.141
plentering..2.8352.835
thinning of mountain forest0.410013.01613.416
coppice cut......
conversion......
transformation......
sanitary felling......
plentering in broadleaf forest......
tending of forest edge..1.8451.845
planting......
agrosilvicultural treatments..2.1412.141
total3.930145.02148.92
Southern Alpsno treatment7.82197.44105.24
tending..2.5382.538
thinning0.41008.5208.919
establishment cut..6.4236.423
removal cut..3.5313.531
plentering..0.41000.4100
thinning of mountain forest2.83515.61418.413
coppice cut0.7715.0265.725
conversion..1.1581.158
transformation......
sanitary felling..0.41000.4100
plentering in broadleaf forest......
tending of forest edge..0.7710.771
planting......
agrosilvicultural treatments..0.7710.771
total11.717142.13153.82
Switzerlandno treatment18.714378.12396.82
tending3.13394.4697.66
thinning3.632206.24209.84
establishment cut3.233137.25140.45
removal cut0.77142.1942.89
plentering..55.0855.08
thinning of mountain forest12.317117.25129.55
coppice cut0.7717.2227.921
conversion..5.3265.326
transformation..1.3501.350
sanitary felling..13.41613.416
plentering in broadleaf forest0.410057.7758.17
tending of forest edge..13.31613.316
planting..0.41000.4100
agrosilvicultural treatments..27.81127.811
total42.691156.511199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162052/148431

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %± %±
inside perimeter0-100 stems/ha33.315.750.035.423.86.633.59.740.115.544.18.533.94.3
101-200 stems/ha....19.06.129.19.320.012.626.67.621.43.7
201-300 stems/ha44.516.650.035.426.26.824.98.820.012.617.66.524.83.9
301-400 stems/ha22.213.9..9.54.58.35.6..8.84.99.12.6
401-500 stems/ha....9.54.5..20.012.62.92.95.82.1
501- 600 stems/ha....9.54.5......3.31.6
more than 600 stems/ha....2.42.44.24.1....1.61.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-100 stems/ha23.61.828.51.726.21.437.92.936.12.639.22.429.90.8
101-200 stems/ha28.42.029.61.725.61.429.12.826.62.424.22.127.20.8
201-300 stems/ha25.21.923.21.621.51.313.22.117.82.117.51.920.90.7
301-400 stems/ha12.91.412.21.212.21.111.41.911.21.710.71.512.00.6
401-500 stems/ha5.21.04.40.87.30.85.51.45.61.35.61.15.80.4
501- 600 stems/ha3.20.81.00.43.70.61.50.72.10.81.50.62.40.3
more than 600 stems/ha1.50.51.10.43.50.61.50.70.60.41.20.51.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-100 stems/ha23.71.828.61.726.11.437.62.836.22.639.62.330.00.8
101-200 stems/ha28.01.929.61.725.31.429.12.626.42.424.42.027.00.8
201-300 stems/ha25.51.923.21.621.71.314.22.017.82.117.51.821.10.7
301-400 stems/ha13.01.412.21.212.11.011.11.810.91.710.61.511.90.6
401-500 stems/ha5.10.94.40.87.40.85.11.36.01.35.41.15.80.4
501- 600 stems/ha3.10.71.00.43.90.61.30.72.00.81.40.52.40.3
more than 600 stems/ha1.50.51.10.43.50.61.70.80.60.41.10.51.90.2
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, 07.11.2014 #162053/148432

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstem count/ha (DBH >= 24cm, classified)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-100 stems/ha1.1580.41003.5312.8351.4505.32514.515
101-200 stems/ha....2.8352.4370.7713.2339.220
201-300 stems/ha1.4500.41003.9302.1410.7712.14110.618
301-400 stems/ha0.771..1.4500.771..1.1583.930
401-500 stems/ha....1.450..0.7710.41002.538
501- 600 stems/ha....1.450......1.450
more than 600 stems/ha....0.41000.3100....0.771
total3.2330.77114.9158.2203.53112.11742.79
outside perimeter0-100 stems/ha45.4873.6690.3635.4843.2857.37345.13
101-200 stems/ha54.8776.4688.3627.11031.8935.39313.83
201-300 stems/ha48.6859.8774.2612.31621.21225.511241.63
301-400 stems/ha24.91131.51042.2910.61713.41515.714138.35
401-500 stems/ha10.11811.31725.2125.1256.7228.22066.77
501- 600 stems/ha6.1242.53812.8161.4502.5382.14127.411
more than 600 stems/ha2.9352.83512.1171.4500.7711.84521.713
total192.82257.91345.1293.33119.53145.931154.51
total0-100 stems/ha46.5873.9693.9638.1844.6862.66359.63
101-200 stems/ha54.8776.4691.2529.51032.5938.69322.93
201-300 stems/ha50.1760.1778.1614.41421.91227.710252.23
301-400 stems/ha25.61131.51043.6911.31713.41516.714142.15
401-500 stems/ha10.11811.31726.6115.1257.4218.52069.17
501- 600 stems/ha6.1242.53814.2161.4502.5382.14128.811
more than 600 stems/ha2.9352.83512.4171.7450.7711.84522.412
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 07.11.2014 #162054/148433

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstem count/ha (DBH >= 24cm, classified) %± %± %±
AG0-100 stems/ha..41.04.441.04.4
101-200 stems/ha..31.14.231.14.2
201-300 stems/ha..17.23.417.23.4
301-400 stems/ha..8.22.58.22.5
401-500 stems/ha..0.80.80.80.8
501- 600 stems/ha..0.80.80.80.8
more than 600 stems/ha..0.80.80.80.8
total..100.0.100.0.
AI0-100 stems/ha..12.38.412.38.4
101-200 stems/ha......
201-300 stems/ha..18.59.918.59.9
301-400 stems/ha..44.512.844.512.8
401-500 stems/ha..12.38.412.38.4
501- 600 stems/ha......
more than 600 stems/ha..12.38.412.38.4
total..100.0.100.0.
AR0-100 stems/ha..19.17.819.17.8
101-200 stems/ha..8.15.58.15.5
201-300 stems/ha..11.56.411.56.4
301-400 stems/ha..26.88.826.88.8
401-500 stems/ha..23.08.423.08.4
501- 600 stems/ha..3.83.83.83.8
more than 600 stems/ha..7.75.37.75.3
total..100.0.100.0.
BE0-100 stems/ha23.410.326.12.026.02.0
101-200 stems/ha11.77.828.92.128.32.0
201-300 stems/ha41.412.023.11.923.71.9
301-400 stems/ha5.95.711.91.511.71.4
401-500 stems/ha11.77.85.21.05.41.0
501- 600 stems/ha5.95.73.30.83.40.8
more than 600 stems/ha..1.60.61.60.6
total100.0.100.0.100.0.
BL/BS0-100 stems/ha100.0.24.16.125.66.2
101-200 stems/ha..26.16.325.66.2
201-300 stems/ha..34.16.733.56.7
301-400 stems/ha..6.03.45.93.3
401-500 stems/ha..6.03.45.93.3
501- 600 stems/ha..2.02.02.02.0
more than 600 stems/ha..1.61.61.61.6
total100.0.100.0.100.0.
FR0-100 stems/ha..23.23.923.23.9
101-200 stems/ha..25.14.025.14.0
201-300 stems/ha..22.43.922.43.9
301-400 stems/ha..13.83.213.83.2
401-500 stems/ha..9.52.79.52.7
501- 600 stems/ha..2.61.52.61.5
more than 600 stems/ha..3.51.73.51.7
total..100.0.100.0.
GE0-100 stems/ha..44.320.144.320.1
101-200 stems/ha......
201-300 stems/ha..14.814.614.814.6
301-400 stems/ha..40.919.640.919.6
401-500 stems/ha......
501- 600 stems/ha......
more than 600 stems/ha......
total..100.0.100.0.
GL0-100 stems/ha57.118.832.57.536.27.1
101-200 stems/ha14.313.320.16.419.35.8
201-300 stems/ha..24.76.821.06.0
301-400 stems/ha..10.14.88.64.1
401-500 stems/ha14.313.32.52.54.33.0
501- 600 stems/ha..7.54.26.43.6
more than 600 stems/ha14.313.32.52.54.33.0
total100.0.100.0.100.0.
GR0-100 stems/ha42.910.833.22.133.62.1
101-200 stems/ha14.47.728.32.027.72.0
201-300 stems/ha19.08.517.91.718.01.7
301-400 stems/ha9.56.411.41.411.31.4
401-500 stems/ha14.27.66.51.16.81.1
501- 600 stems/ha..2.10.62.00.6
more than 600 stems/ha..0.60.40.60.3
total100.0.100.0.100.0.
JU0-100 stems/ha33.327.423.64.623.94.6
101-200 stems/ha..28.24.927.24.8
201-300 stems/ha33.327.423.54.623.84.6
301-400 stems/ha33.327.416.54.017.14.0
401-500 stems/ha..5.92.65.72.5
501- 600 stems/ha..1.21.21.11.1
more than 600 stems/ha..1.21.21.11.1
total100.0.100.0.100.0.
LU0-100 stems/ha..16.93.316.93.3
101-200 stems/ha..40.14.340.14.3
201-300 stems/ha..20.23.620.23.6
301-400 stems/ha..10.22.710.22.7
401-500 stems/ha..5.52.05.52.0
501- 600 stems/ha..2.31.32.31.3
more than 600 stems/ha..4.81.94.81.9
total..100.0.100.0.
NE0-100 stems/ha..27.84.827.84.8
101-200 stems/ha..27.64.827.64.8
201-300 stems/ha..26.44.826.44.8
301-400 stems/ha..13.63.713.63.7
401-500 stems/ha..2.31.62.31.6
501- 600 stems/ha..2.31.62.31.6
more than 600 stems/ha......
total..100.0.100.0.
NW0-100 stems/ha..15.88.515.08.2
101-200 stems/ha..15.88.515.08.2
201-300 stems/ha..26.310.325.09.9
301-400 stems/ha100.0.15.88.520.09.1
401-500 stems/ha..10.57.210.06.9
501- 600 stems/ha..15.88.515.08.2
more than 600 stems/ha......
total100.0.100.0.100.0.
OW0-100 stems/ha50.035.724.45.925.35.9
101-200 stems/ha..24.45.923.55.8
201-300 stems/ha..20.85.620.05.4
301-400 stems/ha50.035.715.25.016.55.1
401-500 stems/ha..7.63.77.33.6
501- 600 stems/ha..1.91.91.81.8
more than 600 stems/ha..5.73.25.53.1
total100.0.100.0.100.0.
SG0-100 stems/ha20.017.921.53.321.53.3
101-200 stems/ha20.017.924.93.524.73.4
201-300 stems/ha40.022.023.53.424.03.4
301-400 stems/ha20.017.911.12.511.42.5
401-500 stems/ha..10.42.510.12.4
501- 600 stems/ha..4.61.74.41.6
more than 600 stems/ha..3.91.63.81.5
total100.0.100.0.100.0.
SH0-100 stems/ha..13.95.813.95.8
101-200 stems/ha..30.67.830.67.8
201-300 stems/ha..30.67.830.67.8
301-400 stems/ha..5.63.95.63.9
401-500 stems/ha..16.76.316.76.3
501- 600 stems/ha..2.82.82.82.8
more than 600 stems/ha......
total..100.0.100.0.
SO0-100 stems/ha50.035.526.54.927.14.8
101-200 stems/ha..32.55.131.85.1
201-300 stems/ha50.035.518.14.218.84.3
301-400 stems/ha..14.53.914.13.8
401-500 stems/ha..6.02.65.92.6
501- 600 stems/ha..1.21.21.21.2
more than 600 stems/ha..1.21.21.21.2
total100.0.100.0.100.0.
SZ0-100 stems/ha..23.44.922.24.6
101-200 stems/ha25.021.827.35.127.25.0
201-300 stems/ha50.025.122.14.823.54.7
301-400 stems/ha25.021.818.24.418.54.3
401-500 stems/ha..6.52.86.22.7
501- 600 stems/ha..1.31.31.21.2
more than 600 stems/ha..1.31.31.31.2
total100.0.100.0.100.0.
TG0-100 stems/ha..26.25.226.25.2
101-200 stems/ha..27.95.327.95.3
201-300 stems/ha..23.85.123.85.1
301-400 stems/ha..13.84.113.84.1
401-500 stems/ha..5.52.75.52.7
501- 600 stems/ha..1.41.41.41.4
more than 600 stems/ha..1.41.41.41.4
total..100.0.100.0.
TI0-100 stems/ha43.510.341.72.741.82.7
101-200 stems/ha34.89.923.02.323.82.3
201-300 stems/ha17.47.918.22.218.22.1
301-400 stems/ha4.34.310.91.710.41.6
401-500 stems/ha..3.71.13.51.0
501- 600 stems/ha..1.20.61.20.6
more than 600 stems/ha..1.20.61.20.6
total100.0.100.0.100.0.
UR0-100 stems/ha11.110.539.27.134.76.4
101-200 stems/ha33.315.814.75.217.65.1
201-300 stems/ha11.110.516.85.415.94.9
301-400 stems/ha..16.85.414.14.7
401-500 stems/ha11.110.54.22.95.33.0
501- 600 stems/ha33.315.82.12.17.13.4
more than 600 stems/ha..6.33.55.33.0
total100.0.100.0.100.0.
VD0-100 stems/ha..26.62.726.42.7
101-200 stems/ha..29.62.829.32.8
201-300 stems/ha100.0.23.32.623.82.6
301-400 stems/ha..9.51.89.51.8
401-500 stems/ha..4.21.24.21.2
501- 600 stems/ha..4.61.34.51.3
more than 600 stems/ha..2.30.92.30.9
total100.0.100.0.100.0.
VS0-100 stems/ha33.59.738.22.837.92.7
101-200 stems/ha29.19.326.92.527.02.4
201-300 stems/ha24.98.814.82.015.62.0
301-400 stems/ha8.35.611.01.810.81.7
401-500 stems/ha..6.11.45.71.3
501- 600 stems/ha..1.30.61.20.6
more than 600 stems/ha4.24.11.60.71.80.7
total100.0.100.0.100.0.
ZG0-100 stems/ha..33.812.633.812.6
101-200 stems/ha..27.011.927.011.9
201-300 stems/ha..20.310.820.310.8
301-400 stems/ha..13.59.213.59.2
401-500 stems/ha......
501- 600 stems/ha......
more than 600 stems/ha..5.45.15.45.1
total..100.0.100.0.
ZH0-100 stems/ha..30.63.830.63.8
101-200 stems/ha..24.53.624.53.6
201-300 stems/ha..27.93.727.93.7
301-400 stems/ha..11.62.611.62.6
401-500 stems/ha..4.81.84.81.8
501- 600 stems/ha......
more than 600 stems/ha..0.70.70.70.7
total..100.0.100.0.
Switzerland0-100 stems/ha34.24.329.90.830.10.8
101-200 stems/ha21.33.727.20.827.00.8
201-300 stems/ha24.83.920.90.721.10.7
301-400 stems/ha9.22.712.00.611.90.6
401-500 stems/ha5.72.15.70.45.70.4
501- 600 stems/ha3.11.52.40.32.40.3
more than 600 stems/ha1.71.21.90.21.90.2
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 07.11.2014 #162055/148434

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstem count/ha (DBH >= 24cm, classified)1000 ha± %1000 ha± %1000 ha± %
AG0-100 stems/ha..20.11120.111
101-200 stems/ha..15.31415.314
201-300 stems/ha..8.5208.520
301-400 stems/ha..4.0304.030
401-500 stems/ha..0.41000.4100
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..0.41000.4100
total..49.1249.12
AI0-100 stems/ha..0.6690.669
101-200 stems/ha......
201-300 stems/ha..1.0541.054
301-400 stems/ha..2.3332.333
401-500 stems/ha..0.6690.669
501- 600 stems/ha......
more than 600 stems/ha..0.6690.669
total..5.2125.212
AR0-100 stems/ha..1.6411.641
101-200 stems/ha..0.7710.771
201-300 stems/ha..1.0551.055
301-400 stems/ha..2.2332.233
401-500 stems/ha..1.9361.936
501- 600 stems/ha..0.31000.3100
more than 600 stems/ha..0.6690.669
total..8.468.46
BE0-100 stems/ha1.45043.7845.08
101-200 stems/ha0.77148.3749.07
201-300 stems/ha2.43838.6841.08
301-400 stems/ha0.310019.91220.212
401-500 stems/ha0.7718.6209.319
501- 600 stems/ha0.31005.5255.824
more than 600 stems/ha..2.7352.735
total5.824167.32173.12
BL/BS0-100 stems/ha0.41004.9265.324
101-200 stems/ha..5.3245.324
201-300 stems/ha..6.9206.920
301-400 stems/ha..1.2571.257
401-500 stems/ha..1.2571.257
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..0.31000.3100
total0.410020.3520.75
FR0-100 stems/ha..10.11710.117
101-200 stems/ha..10.81610.816
201-300 stems/ha..9.7189.718
301-400 stems/ha..6.0236.023
401-500 stems/ha..4.1294.129
501- 600 stems/ha..1.1571.157
more than 600 stems/ha..1.5491.549
total..43.3343.33
GE0-100 stems/ha..1.4481.448
101-200 stems/ha......
201-300 stems/ha..0.51000.5100
301-400 stems/ha..1.3541.354
401-500 stems/ha......
501- 600 stems/ha......
more than 600 stems/ha......
total..3.1203.120
GL0-100 stems/ha1.5495.0256.521
101-200 stems/ha0.41003.1333.531
201-300 stems/ha..3.8303.830
301-400 stems/ha..1.5491.549
401-500 stems/ha0.41000.41000.870
501- 600 stems/ha..1.2571.257
more than 600 stems/ha0.41000.41000.870
total2.73615.31018.07
GR0-100 stems/ha3.23357.0760.17
101-200 stems/ha1.15848.6749.67
201-300 stems/ha1.45030.81032.110
301-400 stems/ha0.77119.61320.312
401-500 stems/ha1.05811.21712.216
501- 600 stems/ha..3.5313.531
more than 600 stems/ha..1.0581.058
total7.421171.62179.02
JU0-100 stems/ha0.41007.8208.219
101-200 stems/ha..9.3189.318
201-300 stems/ha0.41007.8208.119
301-400 stems/ha0.41005.5255.824
401-500 stems/ha..1.9441.944
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..0.41000.4100
total1.25733.0434.23
LU0-100 stems/ha..6.9206.920
101-200 stems/ha..16.31116.311
201-300 stems/ha..8.2188.218
301-400 stems/ha..4.1274.127
401-500 stems/ha..2.3372.337
501- 600 stems/ha..0.9570.957
more than 600 stems/ha..1.9401.940
total..40.7340.73
NE0-100 stems/ha..7.8187.818
101-200 stems/ha..7.8187.818
201-300 stems/ha..7.4197.419
301-400 stems/ha..3.8273.827
401-500 stems/ha..0.6700.670
501- 600 stems/ha..0.6700.670
more than 600 stems/ha......
total..28.2428.24
NW0-100 stems/ha..1.2551.255
101-200 stems/ha..1.2551.255
201-300 stems/ha..1.9401.940
301-400 stems/ha0.41001.2551.546
401-500 stems/ha..0.8690.869
501- 600 stems/ha..1.2551.255
more than 600 stems/ha......
total0.41007.3107.78
OW0-100 stems/ha0.41004.8255.224
101-200 stems/ha..4.8254.825
201-300 stems/ha..4.1284.128
301-400 stems/ha0.41003.0333.431
401-500 stems/ha..1.5491.549
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..1.1571.157
total0.77019.6620.45
SG0-100 stems/ha0.410011.91612.316
101-200 stems/ha0.410013.71414.114
201-300 stems/ha0.77013.01513.715
301-400 stems/ha0.41006.1236.522
401-500 stems/ha..5.8245.824
501- 600 stems/ha..2.5372.537
more than 600 stems/ha..2.2402.240
total1.84455.3457.14
SH0-100 stems/ha..1.8421.842
101-200 stems/ha..3.9263.926
201-300 stems/ha..3.9263.926
301-400 stems/ha..0.7700.770
401-500 stems/ha..2.1382.138
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha......
total..12.8312.83
SO0-100 stems/ha0.41008.3198.719
101-200 stems/ha..10.21610.216
201-300 stems/ha0.41005.7246.123
301-400 stems/ha..4.5274.527
401-500 stems/ha..1.9441.944
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..0.41000.4100
total0.87031.4432.23
SZ0-100 stems/ha..6.5226.522
101-200 stems/ha0.41007.6198.019
201-300 stems/ha0.7706.2226.921
301-400 stems/ha0.41005.1255.423
401-500 stems/ha..1.8441.844
501- 600 stems/ha..0.41000.4100
more than 600 stems/ha..0.41000.4100
total1.44927.9529.34
TG0-100 stems/ha..5.7205.720
101-200 stems/ha..6.1206.120
201-300 stems/ha..5.2225.222
301-400 stems/ha..3.0303.030
401-500 stems/ha..1.2491.249
501- 600 stems/ha..0.31000.3100
more than 600 stems/ha..0.31000.3100
total..21.7421.74
TI0-100 stems/ha3.63148.1751.77
101-200 stems/ha2.93526.51129.410
201-300 stems/ha1.45021.01222.512
301-400 stems/ha0.410012.51612.916
401-500 stems/ha..4.3284.328
501- 600 stems/ha..1.4501.450
more than 600 stems/ha..1.4501.450
total8.220115.43123.62
UR0-100 stems/ha0.31006.2226.521
101-200 stems/ha1.0572.3363.330
201-300 stems/ha0.31002.6343.031
301-400 stems/ha..2.6342.634
401-500 stems/ha0.31000.7701.057
501- 600 stems/ha1.0570.31001.349
more than 600 stems/ha..1.0571.057
total3.03115.71118.78
VD0-100 stems/ha..26.51126.511
101-200 stems/ha..29.41029.410
201-300 stems/ha0.87123.21123.911
301-400 stems/ha..9.5199.519
401-500 stems/ha..4.2304.230
501- 600 stems/ha..4.5284.528
more than 600 stems/ha..2.3402.340
total0.87199.62100.32
VS0-100 stems/ha2.83540.6843.48
101-200 stems/ha2.43728.51030.99
201-300 stems/ha2.14115.81417.813
301-400 stems/ha0.77111.71612.316
401-500 stems/ha..6.5226.522
501- 600 stems/ha..1.4501.450
more than 600 stems/ha0.31001.7452.141
total8.220106.23114.43
ZG0-100 stems/ha..2.1372.137
101-200 stems/ha..1.7441.744
201-300 stems/ha..1.3531.353
301-400 stems/ha..0.9680.968
401-500 stems/ha......
501- 600 stems/ha......
more than 600 stems/ha..0.31000.3100
total..6.376.37
ZH0-100 stems/ha..15.91315.913
101-200 stems/ha..12.71512.715
201-300 stems/ha..14.51314.513
301-400 stems/ha..6.0236.023
401-500 stems/ha..2.5372.537
501- 600 stems/ha......
more than 600 stems/ha..0.41000.4100
total..51.8251.82
Switzerland0-100 stems/ha14.715346.43361.13
101-200 stems/ha9.119314.23323.33
201-300 stems/ha10.618242.33252.93
301-400 stems/ha4.030138.35142.25
401-500 stems/ha2.43866.5768.97
501- 600 stems/ha1.34927.51128.811
more than 600 stems/ha0.77121.51322.213
total42.891156.611199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 07.11.2014 #162056/148435

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %±
inside perimeter0-100 stems/ha33.415.7100.0.12.511.731.55.642.48.633.94.3
101-200 stems/ha....25.015.321.44.927.47.821.53.7
201-300 stems/ha44.416.6..25.015.325.75.218.26.724.83.9
301-400 stems/ha22.213.9..37.517.14.32.49.15.09.22.6
401-500 stems/ha......8.63.33.03.05.72.1
501- 600 stems/ha......5.72.8..3.31.6
more than 600 stems/ha......2.92.0..1.61.1
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-100 stems/ha22.71.830.61.820.41.635.31.539.22.429.80.8
101-200 stems/ha28.61.930.01.827.51.825.61.424.22.127.20.8
201-300 stems/ha26.71.920.81.622.11.718.61.217.11.920.90.7
301-400 stems/ha12.51.412.51.313.01.411.21.011.01.612.00.6
401-500 stems/ha5.71.03.70.78.61.15.50.75.71.25.80.4
501- 600 stems/ha2.60.71.20.44.30.82.20.51.50.62.40.3
more than 600 stems/ha1.30.51.20.44.10.81.50.41.20.61.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-100 stems/ha22.91.830.71.820.31.635.01.439.42.330.00.8
101-200 stems/ha28.11.930.01.827.51.825.41.324.52.127.00.8
201-300 stems/ha27.01.920.81.622.11.719.11.217.21.821.10.7
301-400 stems/ha12.61.412.51.313.31.410.70.910.81.511.90.6
401-500 stems/ha5.61.03.60.78.51.15.70.75.51.15.80.4
501- 600 stems/ha2.50.71.20.44.20.82.40.51.40.62.40.3
more than 600 stems/ha1.30.51.20.44.10.81.60.41.20.51.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 07.11.2014 #162057/148436

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstem count/ha (DBH >= 24cm, classified)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-100 stems/ha1.1580.41000.41007.6215.02614.415
101-200 stems/ha....0.7715.2263.2339.120
201-300 stems/ha1.550..0.7716.2232.14110.518
301-400 stems/ha0.771..1.1581.0581.1583.930
401-500 stems/ha......2.1410.41002.438
501- 600 stems/ha......1.450..1.450
more than 600 stems/ha......0.771..0.771
total3.3330.41002.93524.21211.71742.49
outside perimeter0-100 stems/ha45.3870.7644.78127.8555.77344.03
101-200 stems/ha56.9769.3660.2792.9534.49313.73
201-300 stems/ha53.3748.1848.3867.5724.311241.63
301-400 stems/ha24.81128.81028.51140.4915.614138.15
401-500 stems/ha11.3178.42018.71320.1138.12066.77
501- 600 stems/ha5.1262.8359.4198.0212.14127.411
more than 600 stems/ha2.6382.8359.0205.5251.84521.713
total199.31231.01218.72362.32142.131153.31
total0-100 stems/ha46.3871.0645.08135.4460.66358.43
101-200 stems/ha56.9769.3660.9798.1537.69322.83
201-300 stems/ha54.8748.1849.0873.7626.511252.13
301-400 stems/ha25.61128.81029.51041.5916.614142.05
401-500 stems/ha11.3178.42018.71322.2128.52069.27
501- 600 stems/ha5.1262.8359.4199.4192.14128.811
more than 600 stems/ha2.6382.8359.0206.2231.84522.412
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 07.11.2014 #162058/148437

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stem count/ha (DBH >= 24cm, classified) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstem count/ha (DBH >= 24cm, classified) %± %± %± %± %± %± %±
inside perimeter0-100 stems/ha39.915.522.29.824.08.533.59.745.615.042.48.633.94.3
101-200 stems/ha..11.17.424.08.529.19.318.111.627.47.821.43.7
201-300 stems/ha40.115.538.911.520.08.024.98.818.111.618.26.724.93.9
301-400 stems/ha20.012.611.17.48.05.48.35.6..9.15.09.12.6
401-500 stems/ha..11.17.48.05.4..18.111.63.03.05.82.1
501- 600 stems/ha..5.65.412.06.5......3.31.6
more than 600 stems/ha....4.03.94.24.1....1.61.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-100 stems/ha27.01.324.71.825.92.338.22.834.02.339.22.429.90.8
101-200 stems/ha29.31.328.31.920.82.126.92.528.12.224.22.127.20.8
201-300 stems/ha23.51.222.41.821.42.114.82.018.91.917.11.920.90.7
301-400 stems/ha12.51.010.31.315.41.911.01.811.41.611.01.612.00.6
401-500 stems/ha4.60.67.11.18.11.46.11.45.11.15.71.25.80.4
501- 600 stems/ha1.80.44.30.93.51.01.30.62.00.71.50.62.40.3
more than 600 stems/ha1.20.32.80.74.91.11.60.70.50.31.20.61.90.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-100 stems/ha27.11.324.71.825.82.237.92.734.32.339.42.330.00.8
101-200 stems/ha29.11.327.81.921.02.127.02.427.92.224.52.127.00.8
201-300 stems/ha23.71.222.91.721.32.115.62.018.91.917.21.821.10.7
301-400 stems/ha12.51.010.31.314.91.810.81.711.11.510.81.511.90.6
401-500 stems/ha4.50.67.21.18.11.45.71.35.41.15.51.15.80.4
501- 600 stems/ha1.80.44.30.84.01.01.20.61.90.71.40.62.40.3
more than 600 stems/ha1.20.32.80.74.81.11.80.70.50.31.20.51.90.2
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, 07.11.2014 #162059/148438

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of regeneration (7 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of regeneration (7 classes) %± %± %± %± %± %±
inside perimeter< 1%....10.85.19.52.12.62.58.21.6
1-4%....16.26.119.52.935.97.720.42.4
5-9%38.513.5..18.96.416.92.715.45.818.02.3
10-25%23.011.7..27.07.334.23.425.67.031.52.8
26-50%7.77.4..16.26.112.62.418.06.213.72.1
51-75%7.77.4..2.72.75.31.6..4.31.2
76-100%23.111.7..8.14.52.11.02.62.54.01.2
total100.0...100.0.100.0.100.0.100.0.
outside perimeter< 1%2.90.73.30.74.80.96.00.87.41.34.90.4
1-4%8.11.26.51.013.01.418.61.320.52.013.30.6
5-9%12.01.48.71.114.01.418.71.325.12.215.30.6
10-25%23.81.822.01.633.72.030.61.526.22.227.60.8
26-50%20.31.721.31.619.01.616.61.214.31.818.40.7
51-75%16.21.618.51.59.71.26.80.84.51.011.20.6
76-100%16.61.619.61.55.71.02.70.52.00.79.30.5
total100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.90.73.30.75.20.96.60.76.91.25.10.4
1-4%7.91.16.51.013.21.418.71.221.92.013.90.6
5-9%12.61.48.71.114.31.418.41.224.22.115.50.6
10-25%23.81.822.01.633.31.931.21.426.12.127.90.8
26-50%20.01.721.31.618.91.615.91.114.71.718.00.7
51-75%16.01.618.51.59.31.26.50.74.10.910.60.5
76-100%16.81.619.61.55.90.92.60.52.00.78.80.5
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 #162060/148439

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
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..3.63122.5123.53130.710
26-50%0.4100..2.2418.3202.53813.316
51-75%0.4100..0.41003.531..4.229
76-100%1.158..1.1581.4500.41003.930
total4.727..13.31665.7713.81597.66
outside perimeter< 1%5.8257.72110.11919.41310.31853.38
1-4%16.11515.11527.01159.6728.710146.65
5-9%23.71220.01329.21160.0735.19168.14
10-25%47.1851.0770.3698.0536.79303.03
26-50%40.2949.2839.6953.3820.013202.34
51-75%32.11042.9820.21321.7126.323123.25
76-100%32.91045.3811.9178.7202.835101.66
total197.82231.31208.32320.82139.931098.11
total< 1%5.8257.72111.51725.61110.71861.47
1-4%16.11515.11529.21072.4633.79166.54
5-9%25.51120.01331.71071.1637.39185.74
10-25%48.2851.0773.96120.5540.28333.73
26-50%40.5949.2841.8961.6722.512215.74
51-75%32.51042.9820.51325.1116.323127.35
76-100%34.0945.3813.01610.1183.133105.55
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162061/148440

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
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%..5.12.918.65.95.52.713.54.72.62.58.21.6
1-4%..16.94.97.03.930.15.415.45.035.97.720.42.4
5-9%38.413.522.05.411.74.919.24.613.54.715.45.818.02.3
10-25%23.211.732.26.137.17.431.55.432.76.525.67.031.52.8
26-50%7.77.413.64.514.05.312.33.813.54.718.06.213.62.1
51-75%7.77.45.12.97.03.9..9.64.1..4.31.2
76-100%23.111.75.12.94.63.21.41.41.91.92.62.54.01.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%3.20.52.70.77.11.45.81.48.11.47.41.34.90.4
1-4%7.30.712.51.414.21.918.52.422.62.220.52.013.30.6
5-9%10.20.915.01.615.11.922.72.617.22.025.12.215.30.6
10-25%22.81.236.32.129.02.428.92.830.02.426.22.227.60.8
26-50%20.81.218.01.720.82.216.62.314.51.814.31.818.40.7
51-75%17.51.110.41.38.11.56.51.55.31.24.51.011.20.6
76-100%18.21.15.21.05.71.21.20.72.20.82.00.79.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%3.10.52.90.78.41.45.71.38.81.46.91.25.10.4
1-4%7.20.712.91.413.41.721.02.221.72.021.92.013.90.6
5-9%10.50.915.71.514.71.821.92.316.81.824.22.115.50.6
10-25%22.81.235.92.029.92.329.42.530.42.226.12.127.90.8
26-50%20.71.217.61.620.02.015.62.014.41.714.71.718.00.7
51-75%17.41.19.81.28.01.45.11.25.91.14.10.910.70.5
76-100%18.31.15.20.95.61.21.20.62.10.72.00.78.80.5
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 #162062/148441

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
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%1.1586.9235.5257.9206.0243.53130.910
26-50%0.41002.9352.1413.1332.5382.53813.416
51-75%0.41001.1581.058..1.845..4.229
76-100%1.1581.1580.7710.31000.41000.41003.930
total4.72821.31214.91525.01118.31313.81598.06
outside perimeter< 1%13.6165.0268.7205.22510.61810.31853.38
1-4%31.11023.41217.31316.51429.51028.710146.65
5-9%43.6928.11118.41320.31222.51235.19168.14
10-25%98.0568.2635.2925.81139.2836.79303.13
26-50%89.4633.91025.31114.81519.01320.013202.44
51-75%75.1619.5139.9195.8247.0226.323123.65
76-100%78.369.7196.9221.0582.8352.835101.66
total429.31187.92121.6389.44130.63139.931098.71
total< 1%13.6166.12411.4176.52213.01610.71861.47
1-4%31.11027.01118.31324.01132.4933.79166.64
5-9%45.4832.81020.11225.11124.91137.39185.74
10-25%99.1575.0640.7833.7945.2840.28334.03
26-50%89.8636.8927.41117.91321.41222.512215.84
51-75%75.5620.61310.9185.8248.7206.323127.85
76-100%79.4610.8187.6211.4503.2333.133105.55
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162063/148442

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
grid:
state 2009/13
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover of regeneration (7 classes) %± %± %±
Western Jura< 1%..2.70.82.60.8
1-4%..8.11.37.91.3
5-9%38.313.514.01.714.81.7
10-25%23.311.825.22.125.22.1
26-50%7.77.419.01.918.71.9
51-75%7.77.416.71.816.41.8
76-100%23.011.714.31.714.51.7
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%..10.92.910.92.9
5-9%..12.73.112.73.1
10-25%..29.34.229.34.2
26-50%..22.83.922.83.9
51-75%..10.02.810.02.8
76-100%..12.63.012.63.0
total..100.0.100.0.
Central Plateau< 1%..3.61.23.61.2
1-4%..7.61.87.61.8
5-9%..10.32.010.32.0
10-25%..22.22.822.22.8
26-50%..21.22.821.22.8
51-75%..17.12.517.12.5
76-100%..18.02.618.02.6
total..100.0.100.0.
Eastern Plateau< 1%..3.81.13.81.1
1-4%..4.11.14.11.1
5-9%..6.01.36.01.3
10-25%..19.22.219.22.2
26-50%..20.82.320.82.3
51-75%..22.72.422.72.4
76-100%..23.32.423.32.4
total..100.0.100.0.
Western Pre-Alps< 1%..6.22.35.72.1
1-4%33.515.811.43.013.03.1
5-9%11.210.612.33.112.23.0
10-25%33.015.735.94.535.74.3
26-50%11.210.616.73.516.33.3
51-75%..14.93.313.83.1
76-100%11.210.62.61.53.31.6
total100.0.100.0.100.0.
Central Pre-Alps< 1%5.04.91.50.81.80.8
1-4%10.06.711.11.911.01.9
5-9%25.09.715.72.316.42.2
10-25%35.010.736.83.036.72.9
26-50%15.08.018.82.418.52.3
51-75%5.04.99.61.89.31.7
76-100%5.04.96.51.56.41.5
total100.0.100.0.100.0.
Eastern Pre-Alps< 1%37.517.18.41.99.52.0
1-4%12.511.716.32.616.12.5
5-9%12.511.712.82.412.82.3
10-25%..28.63.227.53.1
26-50%25.015.320.72.820.82.8
51-75%..6.91.86.61.7
76-100%12.511.76.41.76.61.7
total100.0.100.0.100.0.
Northwestern Alps< 1%6.74.62.11.22.81.3
1-4%16.76.815.73.015.92.8
5-9%23.37.715.73.017.02.8
10-25%30.08.435.74.034.73.6
26-50%13.36.217.83.217.02.8
51-75%6.74.68.22.38.02.0
76-100%3.33.34.81.84.61.6
total100.0.100.0.100.0.
Central Alps< 1%5.95.73.02.13.52.0
1-4%5.95.78.93.58.33.0
5-9%5.95.719.54.916.74.1
10-25%46.812.129.75.633.15.1
26-50%18.09.428.65.526.44.8
51-75%17.69.37.43.29.43.2
76-100%..3.12.12.51.7
total100.0.100.0.100.0.
Northeastern Alps< 1%22.29.87.73.010.43.1
1-4%5.65.414.14.012.53.4
5-9%16.78.818.04.417.73.9
10-25%44.411.729.55.232.34.8
26-50%5.65.414.14.012.53.4
51-75%..10.23.48.32.8
76-100%5.65.46.42.86.22.5
total100.0.100.0.100.0.
Southwestern Alps< 1%5.52.75.81.45.71.3
1-4%30.15.418.52.421.02.2
5-9%19.24.622.72.621.92.3
10-25%31.55.428.92.829.42.5
26-50%12.33.816.62.315.62.0
51-75%..6.51.55.11.2
76-100%1.41.41.20.71.20.6
total100.0.100.0.100.0.
Southeastern Alps< 1%13.54.78.11.48.81.4
1-4%15.45.022.62.221.72.0
5-9%13.54.717.22.016.81.8
10-25%32.76.530.02.430.42.2
26-50%13.54.714.51.814.41.7
51-75%9.64.15.31.25.91.1
76-100%1.91.92.20.82.10.7
total100.0.100.0.100.0.
Southern Alps< 1%2.62.57.41.36.91.2
1-4%35.97.720.52.021.92.0
5-9%15.45.825.12.224.22.1
10-25%25.67.026.22.226.12.1
26-50%18.06.214.31.814.71.7
51-75%..4.51.04.10.9
76-100%2.62.52.00.72.00.7
total100.0.100.0.100.0.
Switzerland< 1%8.31.64.90.45.10.4
1-4%20.42.413.40.614.00.6
5-9%18.02.315.30.615.50.6
10-25%31.52.827.60.827.90.8
26-50%13.62.118.40.718.10.7
51-75%4.31.211.10.610.60.5
76-100%4.01.29.20.58.80.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162064/148443

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
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%..4.0304.030
1-4%..12.21712.217
5-9%1.84521.11222.912
10-25%1.15837.9938.98
26-50%0.410028.61028.910
51-75%0.410025.01125.411
76-100%1.15821.41222.512
total4.627150.02154.72
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%..5.3275.327
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..48.7348.73
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%..12.51512.515
total..69.1269.12
Eastern Plateau< 1%..4.3284.328
1-4%..4.7274.727
5-9%..6.8226.822
10-25%..21.81221.812
26-50%..23.61123.611
51-75%..25.71125.711
76-100%..26.51026.510
total..113.32113.32
Western Pre-Alps< 1%..2.6372.637
1-4%1.1574.8265.923
5-9%0.41005.2265.525
10-25%1.15815.11416.213
26-50%0.41007.0217.421
51-75%..6.3236.323
76-100%0.41001.1571.549
total3.33342.1445.54
Central Pre-Alps< 1%0.41001.4501.844
1-4%0.77110.41811.117
5-9%1.84414.71516.514
10-25%2.53734.4936.98
26-50%1.15817.61318.613
51-75%0.41009.0199.319
76-100%0.41006.1246.523
total7.22293.63100.82
Eastern Pre-Alps< 1%1.1576.1247.122
1-4%0.410011.81612.116
5-9%0.41009.3199.618
10-25%..20.71120.711
26-50%0.77115.01415.714
51-75%..5.0265.026
76-100%0.41004.6275.026
total2.93572.5375.33
Northwestern Alps< 1%0.7711.1571.844
1-4%1.8448.22010.018
5-9%2.5378.22010.717
10-25%3.23318.61221.811
26-50%1.4509.31910.717
51-75%0.7714.3285.026
76-100%0.41002.5372.935
total10.71752.2562.94
Central Alps< 1%0.31000.7701.057
1-4%0.31002.1402.437
5-9%0.31004.5274.926
10-25%2.7346.9209.716
26-50%1.1586.6227.720
51-75%1.0571.7442.734
76-100%..0.7710.771
total5.92323.3929.17
Northeastern Alps< 1%1.4492.1403.630
1-4%0.41003.9294.327
5-9%1.1585.0266.123
10-25%2.9348.21911.116
26-50%0.41003.9294.327
51-75%..2.9342.934
76-100%0.41001.8442.140
total6.42227.9734.45
Southwestern Alps< 1%1.4505.2256.522
1-4%7.52116.51424.011
5-9%4.82620.31225.111
10-25%7.92025.81133.79
26-50%3.13314.81517.913
51-75%..5.8245.824
76-100%0.31001.0581.450
total25.01189.44114.43
Southeastern Alps< 1%2.53810.61813.016
1-4%2.83529.51032.49
5-9%2.53822.51224.911
10-25%6.02439.2845.28
26-50%2.53819.01321.412
51-75%1.8457.0228.720
76-100%0.41002.8353.233
total18.313130.63148.92
Southern Alps< 1%0.410010.31810.718
1-4%5.02628.71033.79
5-9%2.14135.1937.39
10-25%3.53136.7940.28
26-50%2.53820.01322.512
51-75%..6.3236.323
76-100%0.41002.8353.133
total13.815139.93153.82
Switzerland< 1%8.12153.6861.77
1-4%20.013147.35167.34
5-9%17.614168.44186.04
10-25%30.910304.03335.03
26-50%13.416203.14216.54
51-75%4.229122.75127.05
76-100%3.930101.85105.75
total98.261100.911199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162065/148444

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
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%....13.33.27.43.218.25.89.74.611.51.9
1-4%7.77.4..14.13.332.35.713.65.229.37.120.32.4
5-9%38.413.5..20.43.819.14.815.95.519.56.220.12.4
10-25%23.211.7..32.84.430.95.627.36.724.36.729.72.7
26-50%7.77.4..11.53.08.83.422.76.314.75.512.92.0
51-75%15.410.0..3.51.71.51.52.32.2..2.91.0
76-100%7.77.4..4.41.9....2.42.42.50.9
total100.0...100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%4.50.96.00.97.60.97.01.712.81.910.71.57.60.5
1-4%10.91.49.71.116.61.220.62.725.02.521.62.115.70.6
5-9%14.71.510.71.115.21.222.42.816.12.124.12.115.80.7
10-25%26.01.925.91.633.61.628.53.031.12.726.22.228.90.8
26-50%19.01.721.21.516.71.217.52.510.11.711.61.616.90.7
51-75%13.71.515.21.37.10.92.61.14.21.14.11.09.20.5
76-100%11.11.411.41.23.20.61.30.80.70.51.70.75.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%4.40.96.00.98.20.97.11.513.51.810.61.57.90.5
1-4%10.91.39.71.116.31.223.32.523.62.322.32.016.10.6
5-9%15.31.510.71.115.81.121.62.416.12.023.72.016.20.6
10-25%25.91.925.91.633.51.529.02.630.62.526.02.128.90.8
26-50%18.71.721.21.516.11.215.52.111.71.711.91.516.60.6
51-75%13.81.515.21.36.70.82.40.94.01.03.70.98.60.5
76-100%11.01.311.41.23.40.61.00.60.60.41.80.65.70.4
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 #162066/148445

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
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..13.1167.2214.2283.63129.211
26-50%0.4100..4.6282.1413.5312.24112.717
51-75%0.771..1.4500.31000.4100..2.835
76-100%0.4100..1.845....0.41002.538
total4.727..40.1923.31115.61414.61598.26
outside perimeterless than 1%8.72015.61524.2125.52413.81515.31583.06
1-4%20.91325.11153.0816.11426.91031.010173.04
5-9%28.11127.61148.6817.51317.31334.69173.74
10-25%49.7766.96107.5522.31133.4937.59317.43
26-50%36.4954.8753.5813.71510.91816.614186.04
51-75%26.31139.2922.7122.1414.5275.924100.76
76-100%21.21229.41010.4181.0580.7712.53865.27
total191.32258.61319.9278.24107.53143.431098.91
totalless than 1%8.72015.61529.5117.22116.61416.81494.36
1-4%21.31225.11158.7723.71129.01035.39193.04
5-9%29.91027.61156.8722.01119.81237.49193.44
10-25%50.8766.96120.7529.5937.7841.18346.63
26-50%36.7954.8758.1715.81414.41518.813198.74
51-75%27.01139.2924.1122.4374.9265.924103.56
76-100%21.61229.41012.1171.0580.7712.83567.77
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162067/148446

NFI4b

forest area: avalanches SilvaProtect, modelled and assigned · degree of cover of assured regeneration · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
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%100.0.15.97.419.17.8
1-4%..15.97.415.37.2
5-9%..23.98.723.08.4
10-25%..15.97.415.37.2
26-50%..19.98.119.17.8
51-75%......
76-100%..8.55.78.15.5
total100.0.100.0.100.0.
BEless than 1%9.54.54.30.94.80.9
1-4%14.25.413.81.613.81.5
5-9%26.16.816.91.717.61.7
10-25%43.17.729.62.130.72.1
26-50%4.73.317.31.816.21.6
51-75%2.42.310.61.49.91.3
76-100%..7.61.26.91.1
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%..5.32.15.22.1
1-4%66.727.312.43.113.83.2
5-9%..14.13.313.73.2
10-25%..38.04.637.14.5
26-50%33.327.318.63.719.03.7
51-75%..10.62.910.32.8
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%18.311.814.05.815.05.3
1-4%9.28.816.76.315.05.3
5-9%17.511.314.05.814.85.2
10-25%36.714.721.86.925.36.4
26-50%9.28.816.76.315.05.3
51-75%..14.05.810.74.6
76-100%9.28.82.82.84.33.0
total100.0.100.0.100.0.
GRless than 1%18.74.914.11.614.71.6
1-4%15.74.625.92.124.61.9
5-9%18.74.916.91.817.21.7
10-25%25.05.429.32.128.82.0
26-50%17.24.79.31.410.31.3
51-75%3.12.23.30.83.30.8
76-100%1.61.51.10.51.20.5
total100.0.100.0.100.0.
JUless than 1%..2.31.62.31.6
1-4%..8.23.08.02.9
5-9%..11.73.511.43.4
10-25%50.035.531.45.031.85.0
26-50%..17.44.117.04.0
51-75%..21.04.420.54.3
76-100%50.035.58.23.09.13.1
total100.0.100.0.100.0.
LUless than 1%..5.52.05.42.0
1-4%50.035.511.92.912.52.9
5-9%..12.52.912.32.9
10-25%50.035.534.74.235.04.2
26-50%..23.63.823.33.7
51-75%..8.62.58.52.5
76-100%..3.11.53.11.5
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%..2.12.11.81.8
1-4%14.713.612.64.812.84.6
5-9%44.018.918.75.721.85.6
10-25%13.412.545.77.341.76.7
26-50%28.017.08.44.010.84.2
51-75%..10.54.59.23.9
76-100%..2.12.11.81.8
total100.0.100.0.100.0.
SGless than 1%20.012.711.52.612.02.6
1-4%..12.22.711.42.5
5-9%20.012.712.82.813.32.7
10-25%30.014.535.84.035.53.8
26-50%20.012.716.93.117.13.0
51-75%..7.42.27.02.0
76-100%10.09.53.41.53.81.5
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%..5.92.65.92.6
5-9%..18.84.318.84.3
10-25%..21.24.521.24.5
26-50%..15.33.915.33.9
51-75%..17.64.217.64.2
76-100%..18.84.318.84.3
total..100.0.100.0.
SZless than 1%..8.13.27.42.9
1-4%14.313.321.64.821.04.5
5-9%14.313.316.24.316.14.1
10-25%42.918.828.45.329.65.1
26-50%14.313.323.04.922.34.6
51-75%14.313.31.31.32.51.7
76-100%..1.31.31.21.2
total100.0.100.0.100.0.
TGless than 1%..8.33.38.33.3
1-4%..5.92.95.92.9
5-9%..4.12.44.12.4
10-25%..27.65.327.65.3
26-50%..22.45.022.45.0
51-75%..17.94.517.94.5
76-100%..13.84.113.84.1
total..100.0.100.0.
TIless than 1%3.73.68.81.68.41.5
1-4%29.68.819.52.220.32.2
5-9%14.86.824.62.423.82.3
10-25%33.39.127.22.527.72.4
26-50%14.96.913.11.913.31.8
51-75%..4.91.24.51.1
76-100%3.73.61.90.82.00.8
total100.0.100.0.100.0.
URless than 1%20.012.74.33.07.13.4
1-4%10.09.56.43.67.13.4
5-9%20.012.717.15.517.65.1
10-25%20.012.728.16.726.75.9
26-50%30.014.635.27.134.26.4
51-75%..8.94.37.33.5
76-100%......
total100.0.100.0.100.0.
VDless than 1%9.18.75.81.56.01.5
1-4%9.18.716.52.316.22.3
5-9%27.313.414.62.215.22.2
10-25%18.211.626.72.826.42.7
26-50%18.211.618.62.418.52.4
51-75%..9.51.89.11.8
76-100%18.211.68.31.78.71.7
total100.0.100.0.100.0.
VSless than 1%6.93.06.91.66.91.4
1-4%32.85.520.82.523.42.3
5-9%20.54.721.92.621.62.3
10-25%30.15.429.22.829.42.5
26-50%8.23.216.62.314.71.9
51-75%1.41.43.51.13.00.9
76-100%..1.20.70.90.5
total100.0.100.0.100.0.
ZGless than 1%..18.910.218.910.2
1-4%..6.86.86.86.8
5-9%..6.86.86.86.8
10-25%..20.310.820.310.8
26-50%..20.310.820.310.8
51-75%..20.310.820.310.8
76-100%..6.86.86.86.8
total..100.0.100.0.
ZHless than 1%..3.41.53.41.5
1-4%..10.22.510.22.5
5-9%..8.22.38.22.3
10-25%..21.83.421.83.4
26-50%..19.13.319.13.3
51-75%..22.43.422.43.4
76-100%..15.03.015.03.0
total..100.0.100.0.
Switzerlandless than 1%11.41.97.60.57.90.5
1-4%20.32.415.70.616.10.6
5-9%20.12.415.80.716.10.6
10-25%29.82.728.80.828.90.8
26-50%12.92.016.90.716.60.6
51-75%2.81.09.20.58.70.5
76-100%2.71.06.00.45.80.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162068/148447

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
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%..0.7710.771
total0.31008.178.46
BEless than 1%1.4506.9228.220
1-4%2.14121.91223.911
5-9%3.83026.81130.510
10-25%6.22347.0853.27
26-50%0.77127.41028.110
51-75%0.310016.81417.114
76-100%..12.01612.016
total14.415158.72173.12
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%..5.9245.924
10-25%..16.01316.013
26-50%0.41007.9208.219
51-75%..4.5284.528
76-100%..0.41000.4100
total1.15742.2443.33
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%1.5493.0344.627
26-50%0.41002.3392.736
51-75%..1.9431.943
76-100%0.41000.41000.870
total4.22813.81118.07
GRless than 1%4.22922.01226.211
1-4%3.53140.5844.08
5-9%4.22926.51130.710
10-25%5.62545.9851.57
26-50%3.83014.61518.513
51-75%0.7715.2265.924
76-100%0.31001.7452.141
total22.412156.63179.02
JUless than 1%..0.8700.870
1-4%..2.7362.736
5-9%..3.9303.930
10-25%0.410010.51610.916
26-50%..5.8245.824
51-75%..7.0217.021
76-100%0.41002.7363.134
total0.87033.4334.23
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%..9.5169.516
51-75%..3.5293.529
76-100%..1.3491.349
total0.67040.1340.73
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%1.1573.3314.526
10-25%0.31008.2178.517
26-50%0.7711.5492.239
51-75%..1.9431.943
76-100%..0.41000.4100
total2.53717.8720.45
SGless than 1%0.7706.1236.922
1-4%..6.5236.523
5-9%0.7706.9227.621
10-25%1.15719.21220.211
26-50%0.7709.0199.718
51-75%..4.0294.029
76-100%0.41001.8442.240
total3.63153.5457.14
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%..6.1236.123
10-25%..6.8216.821
26-50%..4.9264.926
51-75%..5.7245.724
76-100%..6.1236.123
total..32.2332.23
SZless than 1%..2.2402.240
1-4%0.41005.8236.222
5-9%0.41004.3274.726
10-25%1.1577.6198.718
26-50%0.41006.2236.522
51-75%0.41000.41000.770
76-100%..0.41000.4100
total2.53626.8629.34
TGless than 1%..1.8391.839
1-4%..1.3501.350
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..21.7421.74
TIless than 1%0.410010.01810.418
1-4%2.93522.21225.111
5-9%1.45028.01029.410
10-25%3.23331.01034.39
26-50%1.45014.91516.414
51-75%..5.6255.625
76-100%0.41002.1412.537
total9.719113.93123.62
URless than 1%0.7700.7701.349
1-4%0.31001.0571.349
5-9%0.7702.6343.330
10-25%0.7704.3265.024
26-50%1.0575.4236.421
51-75%..1.4501.450
76-100%......
total3.33015.41118.78
VDless than 1%0.41005.6256.025
1-4%0.410015.81416.214
5-9%1.15814.11515.215
10-25%0.87125.71126.411
26-50%0.87117.81318.613
51-75%..9.1209.120
76-100%0.8718.0218.720
total4.23096.13100.32
VSless than 1%1.7456.2237.920
1-4%8.22018.61326.810
5-9%5.12519.61224.711
10-25%7.52126.11033.79
26-50%2.14114.81516.913
51-75%0.31003.1333.431
76-100%..1.0581.058
total25.01189.44114.43
ZGless than 1%..1.2561.256
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..6.376.37
ZHless than 1%..1.8441.844
1-4%..5.3255.325
5-9%..4.2284.228
10-25%..11.31611.316
26-50%..9.9179.917
51-75%..11.61511.615
76-100%..7.8207.820
total..51.8251.82
Switzerlandless than 1%11.11883.2694.36
1-4%19.913173.04192.94
5-9%19.613174.04193.64
10-25%29.111317.43346.53
26-50%12.717186.34198.94
51-75%2.835101.46104.26
76-100%2.63866.4769.07
total97.861101.711199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162069/148448

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
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigneddegree of cover of assured regeneration %± %± %± %± %± %±
inside perimeterless than 1%....10.85.113.22.57.74.311.41.9
1-4%7.77.4..18.96.419.52.930.87.420.42.4
5-9%38.513.5..18.96.419.02.820.56.520.12.4
10-25%23.011.7..27.07.331.63.425.67.029.72.7
26-50%7.77.4..16.26.112.62.412.95.412.92.0
51-75%15.410.0..2.72.72.61.2..2.91.0
76-100%7.77.4..5.43.71.60.92.62.52.50.9
total100.0...100.0.100.0.100.0.100.0.
outside perimeterless than 1%4.60.95.90.97.41.19.10.910.91.67.50.5
1-4%10.11.310.01.215.11.521.11.321.52.115.70.6
5-9%15.11.510.01.214.41.517.71.324.12.215.80.7
10-25%26.41.925.11.734.32.031.01.526.02.228.90.8
26-50%19.21.721.11.617.11.614.81.211.61.617.00.7
51-75%13.81.515.61.48.01.14.60.74.21.09.20.5
76-100%10.71.312.21.33.80.81.70.41.80.75.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%4.50.95.90.97.61.19.80.910.61.57.80.5
1-4%10.11.310.01.215.31.520.81.222.42.016.10.6
5-9%15.71.510.01.214.61.417.91.123.72.016.20.6
10-25%26.31.925.11.733.81.931.11.425.92.129.00.8
26-50%18.91.721.11.617.11.514.41.111.71.516.60.6
51-75%13.91.515.61.47.61.14.20.63.80.98.70.5
76-100%10.61.312.21.33.90.81.70.41.80.65.70.4
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 #162070/148449

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
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..3.63120.8133.53129.011
26-50%0.4100..2.2418.3201.84512.617
51-75%0.771..0.41001.745..2.835
76-100%0.4100..0.7711.0580.41002.538
total4.727..13.31665.7713.81597.66
outside perimeterless than 1%9.12013.71615.51529.11115.31582.76
1-4%20.11323.21231.41067.6730.110172.44
5-9%29.91023.21229.91056.9733.79173.64
10-25%52.2758.0771.3699.4536.39317.33
26-50%38.0948.9835.7947.4816.214186.24
51-75%27.41136.2916.61414.7155.924100.76
76-100%21.21228.1117.9215.6252.53865.37
total197.82231.31208.32320.82139.931098.11
totalless than 1%9.12013.71616.91437.8916.31493.86
1-4%20.41323.21233.91080.4634.49192.34
5-9%31.81023.21232.41069.3736.59193.24
10-25%53.3758.0775.06120.2539.98346.33
26-50%38.3948.9837.8955.7718.013198.84
51-75%28.11136.2916.91416.4145.924103.56
76-100%21.51228.1118.6206.6232.83567.87
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162071/148450

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
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%..8.53.620.96.26.93.019.25.57.74.311.51.9
1-4%7.77.416.94.99.34.432.85.511.54.430.87.420.42.4
5-9%38.413.522.05.416.45.720.54.715.45.020.56.520.12.4
10-25%23.211.733.96.230.37.030.15.428.96.325.67.029.82.7
26-50%7.77.411.94.216.25.68.23.219.25.512.95.412.92.0
51-75%15.410.03.42.42.32.31.41.43.82.7..2.91.0
76-100%7.77.43.42.44.63.2..1.91.92.62.52.50.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterless than 1%5.30.63.80.811.71.76.91.612.91.710.91.67.50.5
1-4%10.10.914.81.616.52.020.82.525.02.221.52.115.70.6
5-9%12.30.915.91.613.71.821.92.615.91.924.12.215.80.7
10-25%25.71.337.22.128.22.429.22.831.12.426.02.228.90.8
26-50%20.31.215.91.620.62.216.62.310.21.611.61.617.00.7
51-75%14.81.08.61.25.91.33.51.13.71.04.21.09.20.5
76-100%11.50.93.60.83.41.01.20.71.10.51.80.75.90.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 1%5.30.64.30.812.71.76.91.413.71.710.61.57.80.5
1-4%10.10.915.01.515.71.823.42.323.42.122.42.016.10.6
5-9%12.61.016.61.514.01.721.62.315.81.823.72.016.10.6
10-25%25.61.336.92.028.42.329.42.530.92.225.92.129.00.8
26-50%20.11.215.51.520.12.014.71.911.31.511.71.516.60.6
51-75%14.81.08.11.15.51.23.00.93.80.93.80.98.70.5
76-100%11.50.93.60.83.60.90.90.51.20.51.80.65.70.4
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 #162072/148451
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