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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand structure %± %± %± %± %± %±
inside perimetern/a..100.0...3.12.2..2.61.5
single-layered44.516.6..12.511.731.85.743.88.834.54.4
multi-layered44.516.6..62.517.148.46.249.98.849.14.6
stratified....25.015.316.74.66.24.312.93.1
clustered structure11.010.4........0.90.9
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.60.30.80.32.20.62.40.51.30.61.60.2
single-layered30.12.033.21.837.42.037.81.536.02.535.20.8
multi-layered58.82.159.91.945.02.037.31.549.62.648.70.9
stratified10.31.36.00.914.41.420.31.312.01.713.50.6
clustered structure0.20.20.20.21.00.42.20.51.10.51.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.50.30.90.42.20.62.50.51.20.51.60.2
single-layered30.42.033.11.837.12.037.41.536.62.435.20.8
multi-layered58.62.159.81.945.22.038.01.549.62.548.70.9
stratified10.21.36.00.914.51.420.11.211.61.613.50.6
clustered structure0.40.30.20.21.00.42.10.41.00.51.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164975/151357

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · 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
rockfall SilvaProtect, modelled and assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a..0.4100..0.771..1.158
single-layered1.550..0.41007.3225.02614.016
multi-layered1.550..1.84511.1175.72520.013
stratified....0.7713.8300.7715.226
clustered structure0.4100........0.4100
total3.3330.41002.93522.81211.41740.79
outside perimetern/a1.1581.8454.7288.3201.84517.614
single-layered59.5775.9679.66129.9448.37393.33
multi-layered116.14137.1395.95128.2466.76543.92
stratified20.41313.71630.61069.8716.214150.75
clustered structure0.41000.41002.2417.7211.45012.017
total197.51228.81213.02343.92134.431117.61
totaln/a1.1582.1414.7289.0191.84518.714
single-layered60.9775.9680.06137.2453.37407.32
multi-layered117.64137.1397.75139.3472.35563.92
stratified20.41313.71631.41073.6616.914156.04
clustered structure0.7710.41002.2417.7211.45012.417
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164976/151358

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · 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
rockfall SilvaProtect, modelled and assignedstand structure %± %± %± %± %± %± %±
inside perimetern/a10.09.5....4.44.311.110.5..2.61.5
single-layered39.915.516.78.830.49.641.610.122.213.943.88.834.44.4
multi-layered39.915.561.111.565.29.933.29.633.315.749.98.849.14.6
stratified..22.29.84.34.320.88.333.315.76.24.312.93.1
clustered structure10.19.6..........0.90.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetern/a0.70.22.20.62.00.82.40.92.80.81.30.61.60.2
single-layered31.81.334.22.039.32.643.22.936.82.436.02.535.20.8
multi-layered59.41.444.82.145.82.731.62.735.02.449.62.648.70.9
stratified8.00.817.21.612.61.822.52.421.12.112.01.713.50.6
clustered structure0.20.11.60.50.30.30.30.34.31.01.10.51.10.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.70.22.10.61.90.72.50.93.00.91.20.51.60.2
single-layered31.91.333.62.038.72.543.12.836.52.436.62.435.20.8
multi-layered59.21.445.32.147.02.631.72.634.92.449.62.548.70.9
stratified7.90.817.31.612.11.722.32.321.42.011.61.613.50.6
clustered structure0.30.11.60.50.30.30.30.34.21.01.00.51.10.2
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, 03.11.2014 #164977/151359

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · 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
rockfall SilvaProtect, modelled and assignedstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a0.4100....0.41000.4100..1.158
single-layered1.4501.1582.4383.4310.7715.02614.016
multi-layered1.4504.0305.2252.7351.1585.72520.013
stratified..1.4500.31001.7441.1580.7715.326
clustered structure0.4100..........0.4100
total3.6326.5237.9208.2203.23311.41740.89
outside perimetern/a2.9354.3292.4382.4383.9301.84517.714
single-layered135.6467.4647.8743.6750.6748.37393.33
multi-layered253.2388.4555.8631.9948.1766.76544.02
stratified34.01033.91015.31522.61129.01016.214151.15
clustered structure0.7713.2330.31000.31005.9241.45012.017
total426.41197.32121.73100.93137.52134.431118.11
totaln/a3.2334.3292.4382.8354.2281.84518.714
single-layered137.0468.5650.2747.0751.3753.37407.42
multi-layered254.7392.3560.9634.6949.2772.35564.12
stratified34.01035.3915.71524.41130.11016.914156.34
clustered structure1.1583.2330.31000.31005.9241.45012.417
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164978/151360

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure %± %± %±
Western Juran/a..0.70.40.70.4
single-layered49.817.731.02.331.32.2
multi-layered37.317.155.42.455.12.4
stratified..12.61.612.41.6
clustered structure12.912.00.20.20.50.3
total100.0.100.0.100.0.
Eastern Juran/a......
single-layered..27.34.127.14.0
multi-layered100.0.70.24.270.54.1
stratified..2.51.42.51.4
clustered structure......
total100.0.100.0.100.0.
Western Plateaun/a..3.41.73.41.7
single-layered..33.24.433.24.4
multi-layered..59.14.559.14.5
stratified..3.41.73.41.7
clustered structure..0.90.90.90.9
total..100.0.100.0.
Central Plateaun/a100.0...0.50.5
single-layered..40.93.340.73.3
multi-layered..52.73.452.43.4
stratified..6.41.76.41.7
clustered structure......
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.30.30.3
single-layered..27.82.527.82.5
multi-layered..65.22.765.22.7
stratified..6.71.46.71.4
clustered structure......
total..100.0.100.0.
Western Pre-Alpsn/a..3.31.63.31.6
single-layered..36.64.436.34.4
multi-layered..47.54.647.14.6
stratified100.0.10.92.911.62.9
clustered structure..1.71.21.71.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a..1.50.71.50.7
single-layered..32.82.932.42.8
multi-layered75.021.744.03.044.53.0
stratified25.021.720.12.520.22.4
clustered structure..1.50.71.50.7
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a..2.51.12.41.1
single-layered33.327.343.83.543.73.5
multi-layered66.727.344.83.545.13.5
stratified..8.92.08.72.0
clustered structure......
total100.0.100.0.100.0.
Northwestern Alpsn/a..2.51.22.31.2
single-layered23.111.734.63.833.83.6
multi-layered61.513.544.03.945.33.8
stratified15.410.017.03.016.92.9
clustered structure..1.91.11.71.0
total100.0.100.0.100.0.
Central Alpsn/a......
single-layered36.414.635.85.935.95.5
multi-layered54.515.146.26.147.35.7
stratified9.18.718.04.716.84.3
clustered structure......
total100.0.100.0.100.0.
Northeastern Alpsn/a..2.51.72.31.6
single-layered22.213.931.25.230.34.9
multi-layered77.813.948.75.651.75.3
stratified..16.34.114.63.8
clustered structure..1.21.21.11.1
total100.0.100.0.100.0.
Southwestern Alpsn/a4.44.32.40.92.50.9
single-layered41.610.143.22.943.12.8
multi-layered33.29.631.62.731.72.6
stratified20.88.322.52.422.32.3
clustered structure..0.30.30.30.3
total100.0.100.0.100.0.
Southeastern Alpsn/a11.110.52.80.83.00.9
single-layered22.213.936.82.436.52.4
multi-layered33.315.735.02.434.92.4
stratified33.315.721.12.121.42.0
clustered structure..4.31.04.21.0
total100.0.100.0.100.0.
Southern Alpsn/a..1.30.61.20.5
single-layered43.88.836.02.536.62.4
multi-layered49.98.849.62.649.62.5
stratified6.24.312.01.711.61.6
clustered structure..1.10.51.00.5
total100.0.100.0.100.0.
Switzerlandn/a2.51.41.60.21.60.2
single-layered34.44.435.10.835.10.8
multi-layered49.34.648.80.948.80.9
stratified12.93.113.40.613.40.6
clustered structure0.90.91.10.21.10.2
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164979/151361

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand structure · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand structure1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..1.1581.158
single-layered1.45046.5847.97
multi-layered1.15883.1584.25
stratified..18.91318.913
clustered structure0.41000.41000.771
total2.935150.02152.82
Eastern Juran/a......
single-layered..13.11513.115
multi-layered0.410033.6634.06
stratified..1.2571.257
clustered structure......
total0.410047.8248.22
Western Plateaun/a..1.6491.649
single-layered..16.11316.113
multi-layered..28.6928.69
stratified..1.6491.649
clustered structure..0.41000.4100
total..48.4348.43
Central Plateaun/a0.3100..0.3100
single-layered..28.0828.08
multi-layered..36.0736.07
stratified..4.4264.426
clustered structure......
total0.310068.4268.72
Eastern Plateaun/a..0.41000.4100
single-layered..31.1931.19
multi-layered..72.9472.94
stratified..7.5217.521
clustered structure......
total..111.92111.92
Western Pre-Alpsn/a..1.5491.549
single-layered..16.21316.213
multi-layered..21.11021.110
stratified0.41004.8265.225
clustered structure..0.7700.770
total0.410044.4444.84
Central Pre-Alpsn/a..1.4501.450
single-layered..31.6931.69
multi-layered1.15842.3743.47
stratified0.410019.41219.712
clustered structure..1.4501.450
total1.45096.1297.52
Eastern Pre-Alpsn/a..1.8441.844
single-layered0.410031.8832.18
multi-layered0.77132.5833.28
stratified..6.4236.423
clustered structure......
total1.15772.5373.63
Northwestern Alpsn/a..1.4501.450
single-layered1.15719.71220.811
multi-layered2.93525.01027.99
stratified0.7719.61810.417
clustered structure..1.1571.157
total4.62756.8461.54
Central Alpsn/a......
single-layered1.4498.3189.717
multi-layered2.14010.71612.814
stratified0.31004.2284.527
clustered structure......
total3.82923.2827.07
Northeastern Alpsn/a..0.7710.771
single-layered0.7708.9189.717
multi-layered2.53714.01316.511
stratified..4.7274.727
clustered structure..0.41000.4100
total3.23228.7731.96
Southwestern Alpsn/a0.41002.4382.835
single-layered3.43143.6747.07
multi-layered2.73531.9934.69
stratified1.74422.61124.411
clustered structure..0.31000.3100
total8.220100.93109.13
Southeastern Alpsn/a0.41003.9304.228
single-layered0.77150.6751.37
multi-layered1.15848.1749.27
stratified1.15829.01030.110
clustered structure..5.9245.924
total3.233137.52140.62
Southern Alpsn/a..1.8451.845
single-layered5.02648.3753.37
multi-layered5.72566.7672.35
stratified0.77116.21416.914
clustered structure..1.4501.450
total11.417134.43145.72
Switzerlandn/a1.05818.01419.014
single-layered14.016393.63407.72
multi-layered20.113546.52566.62
stratified5.326150.65155.94
clustered structure0.410012.11712.417
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164980/151362

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · regeneration cover · 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
rockfall SilvaProtect, modelled and assignedregeneration cover %± %± %± %± %± %± %±
inside perimeter< 1%....12.55.2..12.511.7..5.22.1
1-9%44.416.6..20.06.354.310.237.517.148.68.737.94.5
10-25%44.516.6..35.07.516.67.637.517.133.38.231.14.3
26-50%..50.035.412.55.220.88.312.511.715.16.214.63.3
51-75%11.110.550.035.412.55.28.35.6....7.72.5
76-100%....7.54.2....3.03.03.51.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%2.80.73.40.75.30.76.51.58.11.57.21.35.10.4
1-9%20.61.815.21.331.01.542.23.138.72.745.92.529.10.8
10-25%23.41.823.31.632.21.531.02.931.42.626.22.227.80.8
26-50%19.71.721.81.518.01.315.32.214.32.014.41.818.10.7
51-75%15.91.617.91.48.40.93.41.16.21.34.61.110.80.5
76-100%17.61.718.31.45.20.71.50.81.20.61.80.79.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.80.73.40.75.60.76.01.48.21.56.61.25.10.4
1-9%21.01.815.11.330.51.543.22.938.72.746.12.429.40.8
10-25%23.81.823.31.632.31.529.82.731.62.626.82.227.90.8
26-50%19.31.721.91.517.71.215.82.214.31.914.41.718.00.7
51-75%15.81.618.01.48.60.93.91.16.01.34.21.010.70.5
76-100%17.31.618.31.45.30.71.40.71.20.61.90.79.00.5
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 #164981/151363

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · regeneration cover · 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
rockfall SilvaProtect, modelled and assignedregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter< 1%....1.845..0.4100..2.141
1-9%1.450..2.8354.5271.1585.72515.515
10-25%1.450..5.0271.4501.1583.93012.817
26-50%..0.41001.8451.7440.41001.8456.024
51-75%0.41000.41001.8450.771....3.233
76-100%....1.158....0.41001.450
total3.2330.77114.2168.2202.83511.81741.09
outside perimeter< 1%5.4268.82017.4145.8249.21910.01856.68
1-9%39.3938.99102.4537.7843.8763.46325.43
10-25%44.7859.87106.5527.71035.5936.29310.53
26-50%37.5955.9759.4713.71516.21419.813202.54
51-75%30.31046.0827.9113.1337.0226.323120.55
76-100%33.5947.0817.1141.4501.4502.538102.95
total190.61256.41330.7189.43113.13138.231118.41
total< 1%5.4268.82019.2135.8249.51910.01858.78
1-9%40.7938.99105.2542.2744.8769.16340.93
10-25%46.1859.87111.5529.1936.6840.28323.23
26-50%37.5956.2761.2715.41416.61421.612208.54
51-75%30.61046.3829.7113.8307.0226.323123.75
76-100%33.5947.0818.2141.4501.4502.835104.35
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164982/151364

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · regeneration cover · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonregeneration cover %± %± %±
AG< 1%..3.31.63.31.6
1-9%..9.82.79.82.7
10-25%..16.43.416.43.4
26-50%..22.13.822.13.8
51-75%..19.73.619.73.6
76-100%..28.74.128.74.1
total..100.0.100.0.
AI< 1%..24.711.024.711.0
1-9%..50.712.850.712.8
10-25%..12.38.412.38.4
26-50%..6.26.16.26.1
51-75%..6.26.16.26.1
76-100%......
total..100.0.100.0.
AR< 1%..8.05.58.05.5
1-9%..32.09.532.09.5
10-25%..36.09.736.09.7
26-50%..20.08.120.08.1
51-75%......
76-100%..4.04.04.04.0
total..100.0.100.0.
BE< 1%..2.30.72.20.7
1-9%29.311.028.02.128.12.0
10-25%35.611.630.42.130.52.1
26-50%5.95.718.61.818.21.7
51-75%17.69.210.71.410.91.4
76-100%11.77.810.01.410.11.4
total100.0.100.0.100.0.
BL/BS< 1%..4.02.83.92.8
1-9%..4.02.83.92.8
10-25%100.0.25.76.227.26.3
26-50%..28.16.427.66.3
51-75%..16.15.215.75.1
76-100%..22.15.921.65.8
total100.0.100.0.100.0.
FR< 1%..3.51.73.51.7
1-9%..21.13.821.13.8
10-25%..36.84.536.84.5
26-50%..20.23.820.23.8
51-75%..15.83.415.83.4
76-100%..2.61.52.61.5
total..100.0.100.0.
GE< 1%..14.814.614.814.6
1-9%..14.814.614.814.6
10-25%..29.518.729.518.7
26-50%..14.814.614.814.6
51-75%..14.814.614.814.6
76-100%..11.410.311.410.3
total..100.0.100.0.
GL< 1%14.313.310.65.011.14.7
1-9%28.617.231.47.631.06.9
10-25%28.617.221.16.722.36.3
26-50%14.313.315.86.015.65.5
51-75%14.313.310.65.011.14.7
76-100%..10.65.08.94.3
total100.0.100.0.100.0.
GR< 1%5.35.18.81.38.71.3
1-9%52.711.541.52.342.02.2
10-25%31.510.729.22.129.32.1
26-50%10.57.013.21.613.01.5
51-75%..5.11.04.91.0
76-100%..2.20.72.10.6
total100.0.100.0.100.0.
JU< 1%..2.41.72.31.6
1-9%66.727.39.53.211.53.4
10-25%..34.65.233.45.1
26-50%..16.64.116.03.9
51-75%33.327.420.34.420.74.4
76-100%..16.74.116.14.0
total100.0.100.0.100.0.
LU< 1%..3.11.53.11.5
1-9%..23.73.823.73.8
10-25%..35.64.335.64.3
26-50%..21.93.721.93.7
51-75%..11.02.811.02.8
76-100%..4.71.94.71.9
total..100.0.100.0.
NE< 1%..1.11.11.11.1
1-9%..16.74.116.74.1
10-25%..21.64.421.64.4
26-50%..26.24.726.24.7
51-75%..20.74.420.74.4
76-100%..13.63.713.63.7
total..100.0.100.0.
NW< 1%..10.57.210.06.9
1-9%..36.811.335.010.9
10-25%..21.19.520.09.1
26-50%100.0.15.88.520.09.1
51-75%..5.35.25.05.0
76-100%..10.57.210.06.9
total100.0.100.0.100.0.
OW< 1%..2.02.02.02.0
1-9%50.035.732.76.833.46.7
10-25%..40.77.139.16.9
26-50%..12.34.711.84.6
51-75%50.035.78.24.09.84.2
76-100%..4.12.93.92.7
total100.0.100.0.100.0.
SG< 1%25.021.77.52.28.02.2
1-9%..26.03.625.33.6
10-25%50.025.129.53.830.03.8
26-50%25.021.719.23.319.33.2
51-75%..11.72.711.32.6
76-100%..6.22.06.01.9
total100.0.100.0.100.0.
SH< 1%..8.34.78.34.7
1-9%..27.87.527.87.5
10-25%..11.15.311.15.3
26-50%..22.27.022.27.0
51-75%..13.95.813.95.8
76-100%..16.76.316.76.3
total..100.0.100.0.
SO< 1%......
1-9%50.035.518.34.319.04.3
10-25%50.035.520.74.521.44.5
26-50%..17.14.216.74.1
51-75%..15.94.115.54.0
76-100%..28.05.027.44.9
total100.0.100.0.100.0.
SZ< 1%..5.32.65.12.5
1-9%..36.05.634.65.4
10-25%33.327.432.05.432.05.3
26-50%33.327.421.44.821.84.7
51-75%..5.32.65.12.5
76-100%33.327.4..1.31.3
total100.0.100.0.100.0.
TG< 1%..7.03.07.03.0
1-9%..7.03.07.03.0
10-25%..18.24.618.24.6
26-50%..28.15.328.15.3
51-75%..20.04.820.04.8
76-100%..19.64.719.64.7
total..100.0.100.0.
TI< 1%..6.91.46.41.4
1-9%40.910.543.12.842.92.7
10-25%36.410.326.82.527.42.5
26-50%18.28.216.22.116.42.0
51-75%..5.11.24.81.2
76-100%4.54.42.00.82.10.8
total100.0.100.0.100.0.
UR< 1%33.315.8..5.53.1
1-9%11.110.519.85.918.35.3
10-25%33.315.830.76.931.26.3
26-50%11.110.533.87.130.16.3
51-75%11.110.511.04.711.04.3
76-100%..4.73.23.92.7
total100.0.100.0.100.0.
VD< 1%..3.81.23.81.2
1-9%..27.82.827.62.8
10-25%100.0.23.52.624.12.6
26-50%..19.82.519.62.5
51-75%..12.02.011.92.0
76-100%..13.22.113.12.1
total100.0.100.0.100.0.
VS< 1%..6.11.45.71.3
1-9%54.310.242.92.943.72.8
10-25%16.67.630.92.729.92.6
26-50%20.88.314.62.115.12.0
51-75%8.35.64.11.24.41.2
76-100%..1.40.71.30.6
total100.0.100.0.100.0.
ZG< 1%..14.39.714.39.7
1-9%......
10-25%..28.612.528.612.5
26-50%..28.612.528.612.5
51-75%..7.17.17.17.1
76-100%..21.411.321.411.3
total..100.0.100.0.
ZH< 1%..2.11.22.11.2
1-9%..11.02.611.02.6
10-25%..20.73.420.73.4
26-50%..14.52.914.52.9
51-75%..24.83.624.83.6
76-100%..26.93.726.93.7
total..100.0.100.0.
Switzerland< 1%5.12.05.10.45.10.4
1-9%37.94.529.00.829.30.8
10-25%31.24.327.70.827.80.8
26-50%14.63.318.10.718.00.7
51-75%7.82.510.80.510.70.5
76-100%3.41.79.40.59.20.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164983/151365

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · regeneration cover · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonregeneration cover1000 ha± %1000 ha± %1000 ha± %
AG< 1%..1.6491.649
1-9%..4.8284.828
10-25%..8.0218.021
26-50%..10.91710.917
51-75%..9.7189.718
76-100%..14.11414.114
total..49.1249.12
AI< 1%..1.3451.345
1-9%..2.7302.730
10-25%..0.6690.669
26-50%..0.31000.3100
51-75%..0.31000.3100
76-100%......
total..5.2125.212
AR< 1%..0.6690.669
1-9%..2.6302.630
10-25%..2.9272.927
26-50%..1.6411.641
51-75%......
76-100%..0.31000.3100
total..8.058.05
BE< 1%..3.8303.830
1-9%1.74545.8847.67
10-25%2.14149.7751.87
26-50%0.310030.51030.810
51-75%1.05817.51318.513
76-100%0.77116.41417.114
total5.824163.72169.52
BL/BS< 1%..0.8700.870
1-9%..0.8700.870
10-25%0.41005.2255.624
26-50%..5.7235.723
51-75%..3.3333.333
76-100%..4.5274.527
total0.410020.3520.75
FR< 1%..1.5491.549
1-9%..9.0189.018
10-25%..15.71315.713
26-50%..8.6198.619
51-75%..6.7226.722
76-100%..1.1571.157
total..42.6342.63
GE< 1%..0.51000.5100
1-9%..0.51000.5100
10-25%..0.9650.965
26-50%..0.51000.5100
51-75%..0.51000.5100
76-100%..0.41000.4100
total..3.1203.120
GL< 1%0.41001.5491.943
1-9%0.8704.6265.424
10-25%0.8703.1333.929
26-50%0.41002.3392.736
51-75%0.41001.5491.943
76-100%..1.5491.549
total2.73614.61017.37
GR< 1%0.310014.31514.715
1-9%3.53167.3670.86
10-25%2.14147.3849.37
26-50%0.77121.31222.012
51-75%..8.3208.320
76-100%..3.5313.531
total6.623162.02168.62
JU< 1%..0.8700.870
1-9%0.8703.1343.930
10-25%..11.31511.315
26-50%..5.4255.425
51-75%0.41006.6227.021
76-100%..5.5255.525
total1.25732.7333.93
LU< 1%..1.3491.349
1-9%..9.5169.516
10-25%..14.21314.213
26-50%..8.8178.817
51-75%..4.4254.425
76-100%..1.9401.940
total..40.0340.03
NE< 1%..0.31000.3100
1-9%..4.7264.726
10-25%..6.1216.121
26-50%..7.4187.418
51-75%..5.8225.822
76-100%..3.8273.827
total..28.2428.24
NW< 1%..0.8690.869
1-9%..2.7322.732
10-25%..1.5461.546
26-50%0.41001.2551.546
51-75%..0.41000.4100
76-100%..0.8690.869
total0.41007.3107.78
OW< 1%..0.41000.4100
1-9%0.41006.0216.420
10-25%..7.4187.418
26-50%..2.2392.239
51-75%0.41001.5491.943
76-100%..0.7700.770
total0.77018.3519.04
SG< 1%0.41004.0294.328
1-9%..13.71513.715
10-25%0.77015.51316.313
26-50%0.410010.11810.517
51-75%..6.1236.123
76-100%..3.3333.333
total1.45052.8454.24
SH< 1%..1.1561.156
1-9%..3.6273.627
10-25%..1.4481.448
26-50%..2.8322.832
51-75%..1.8421.842
76-100%..2.1382.138
total..12.8312.83
SO< 1%......
1-9%0.41005.7246.123
10-25%0.41006.4226.821
26-50%..5.3255.325
51-75%..4.9264.926
76-100%..8.7188.718
total0.87031.0431.83
SZ< 1%..1.4491.449
1-9%..9.8169.816
10-25%0.41008.7189.117
26-50%0.41005.8236.222
51-75%..1.4491.449
76-100%0.4100..0.4100
total1.15727.2528.35
TG< 1%..1.5431.543
1-9%..1.5431.543
10-25%..3.9253.925
26-50%..6.0196.019
51-75%..4.3254.325
76-100%..4.2244.224
total..21.3321.33
TI< 1%..7.5217.521
1-9%3.23347.3750.57
10-25%2.93529.41032.39
26-50%1.45017.81319.213
51-75%..5.6255.625
76-100%0.41002.1412.537
total7.921109.83117.72
UR< 1%1.057..1.057
1-9%0.31003.0313.330
10-25%1.0574.6245.621
26-50%0.31005.1245.423
51-75%0.31001.7432.039
76-100%..0.7710.771
total3.03115.01118.09
VD< 1%..3.7313.731
1-9%..27.31027.310
10-25%0.87123.11223.811
26-50%..19.41319.413
51-75%..11.81711.817
76-100%..12.91612.916
total0.87198.1298.92
VS< 1%..6.2236.223
1-9%4.52743.3747.77
10-25%1.45031.2932.69
26-50%1.74414.71416.514
51-75%0.7714.1284.826
76-100%..1.4501.450
total8.220100.93109.13
ZG< 1%..0.9680.968
1-9%......
10-25%..1.7441.744
26-50%..1.7441.744
51-75%..0.41000.4100
76-100%..1.3531.353
total..6.066.06
ZH< 1%..1.1571.157
1-9%..5.6245.624
10-25%..10.61610.616
26-50%..7.4207.420
51-75%..12.71512.715
76-100%..13.81413.814
total..51.1251.12
Switzerland< 1%2.14156.7858.88
1-9%15.515324.73340.23
10-25%12.817310.63323.43
26-50%6.024202.84208.84
51-75%3.233121.35124.55
76-100%1.450105.05106.45
total41.091121.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164984/151366

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · regeneration cover · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedregeneration cover %± %± %± %± %± %±
inside perimeter< 1%......9.13.5..5.12.0
1-9%44.516.6..12.511.736.45.946.98.838.04.5
10-25%44.416.6..12.511.730.35.734.38.431.04.3
26-50%....37.517.113.64.215.66.414.73.3
51-75%11.110.5100.0.25.015.37.63.3..7.82.5
76-100%....12.511.73.02.13.13.13.51.7
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter< 1%2.80.73.40.75.20.96.50.87.11.35.00.4
1-9%20.11.715.01.427.61.837.61.546.42.629.00.8
10-25%23.31.822.11.634.01.931.01.525.82.227.80.8
26-50%20.51.721.21.618.41.616.01.214.41.818.10.7
51-75%16.11.618.61.59.01.26.20.84.41.010.80.5
76-100%17.21.619.71.65.81.02.70.51.80.79.20.5
total100.0.100.0.100.0.100.0.100.0.100.0.
total< 1%2.70.73.40.75.20.96.70.86.61.25.00.4
1-9%20.51.715.01.427.41.837.51.546.42.529.40.8
10-25%23.61.822.11.633.71.931.01.426.52.227.90.8
26-50%20.21.721.21.618.71.615.81.114.51.718.00.7
51-75%16.01.618.71.59.21.26.30.74.11.010.70.5
76-100%16.91.619.61.65.81.02.80.51.90.79.00.5
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 #164985/151367

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · 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
rockfall SilvaProtect, modelled and assignedbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterto 19 m2/ha1.1581.1582.4383.8301.4503.53113.316
20-39 m2/ha2.1412.9351.0582.4370.7715.32514.515
40-59 m2/ha0.41001.8452.8351.7440.7712.1419.519
from 60 m2/ha..0.7711.7440.31000.41000.41003.532
total3.6326.5237.9208.2203.23311.41740.89
outside perimeterto 19 m2/ha117.0553.7727.71139.5846.8851.67336.33
20-39 m2/ha192.8368.9640.1834.6951.6752.07440.02
40-59 m2/ha95.1552.7734.5919.51230.61024.111256.63
from 60 m2/ha21.51322.01219.4137.2218.4206.72285.26
total426.41197.32121.73100.93137.52134.431118.11
totalto 19 m2/ha118.0554.8730.21043.3748.2755.17349.63
20-39 m2/ha195.0371.8641.1837.0852.3757.36454.52
40-59 m2/ha95.5554.5737.3821.31231.31026.211266.03
from 60 m2/ha21.51322.71221.1127.6218.8197.12288.76
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164986/151368

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees) %± %± %±
Western Jurato 19 m2/ha12.411.722.92.122.72.0
20-39 m2/ha74.615.549.32.449.82.4
40-59 m2/ha12.912.023.62.123.42.0
from 60 m2/ha..4.31.04.21.0
total100.0.100.0.100.0.
Eastern Jurato 19 m2/ha100.0.23.23.823.83.9
20-39 m2/ha..56.34.555.84.5
40-59 m2/ha..18.23.518.13.5
from 60 m2/ha..2.41.42.31.3
total100.0.100.0.100.0.
Western Plateauto 19 m2/ha..28.04.228.04.2
20-39 m2/ha..38.14.538.14.5
40-59 m2/ha..24.64.024.64.0
from 60 m2/ha..9.42.79.42.7
total..100.0.100.0.
Central Plateauto 19 m2/ha100.0.30.93.131.23.1
20-39 m2/ha..41.73.341.53.3
40-59 m2/ha..20.02.719.92.7
from 60 m2/ha..7.31.87.31.8
total100.0.100.0.100.0.
Eastern Plateauto 19 m2/ha..32.62.732.62.7
20-39 m2/ha..40.62.840.62.8
40-59 m2/ha..23.02.423.02.4
from 60 m2/ha..3.81.13.81.1
total..100.0.100.0.
Western Pre-Alpsto 19 m2/ha..28.34.128.14.1
20-39 m2/ha100.0.27.54.128.14.1
40-59 m2/ha..30.04.229.84.2
from 60 m2/ha..14.13.214.03.2
total100.0.100.0.100.0.
Central Pre-Alpsto 19 m2/ha25.021.724.32.624.32.6
20-39 m2/ha50.025.036.62.936.82.9
40-59 m2/ha25.021.728.42.828.32.7
from 60 m2/ha..10.81.910.71.9
total100.0.100.0.100.0.
Eastern Pre-Alpsto 19 m2/ha..17.22.717.02.6
20-39 m2/ha33.327.331.03.331.13.2
40-59 m2/ha66.727.333.03.333.53.3
from 60 m2/ha..18.72.718.42.7
total100.0.100.0.100.0.
Northwestern Alpsto 19 m2/ha15.410.031.53.730.23.5
20-39 m2/ha38.513.537.73.937.83.7
40-59 m2/ha30.812.821.43.322.13.2
from 60 m2/ha15.410.09.52.39.92.3
total100.0.100.0.100.0.
Central Alpsto 19 m2/ha18.211.728.65.627.25.1
20-39 m2/ha18.211.735.85.933.35.4
40-59 m2/ha27.313.526.75.426.85.0
from 60 m2/ha36.414.68.93.512.73.8
total100.0.100.0.100.0.
Northeastern Alpsto 19 m2/ha55.616.630.05.132.65.0
20-39 m2/ha..36.25.432.65.0
40-59 m2/ha33.315.818.84.420.24.3
from 60 m2/ha11.110.515.04.014.63.8
total100.0.100.0.100.0.
Southwestern Alpsto 19 m2/ha46.010.239.12.939.62.7
20-39 m2/ha29.19.334.32.833.92.7
40-59 m2/ha20.88.319.42.319.52.2
from 60 m2/ha4.24.17.21.56.91.4
total100.0.100.0.100.0.
Southeastern Alpsto 19 m2/ha44.416.634.12.434.32.4
20-39 m2/ha22.213.937.52.437.22.4
40-59 m2/ha22.213.922.32.122.32.1
from 60 m2/ha11.110.56.11.26.21.2
total100.0.100.0.100.0.
Southern Alpsto 19 m2/ha31.28.238.42.537.82.4
20-39 m2/ha46.88.838.72.539.32.4
40-59 m2/ha18.96.917.92.018.01.9
from 60 m2/ha3.13.15.01.14.91.1
total100.0.100.0.100.0.
Switzerlandto 19 m2/ha32.74.430.00.830.10.8
20-39 m2/ha35.44.439.40.939.20.8
40-59 m2/ha23.33.923.00.723.00.7
from 60 m2/ha8.62.67.70.57.70.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164987/151369

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · basal area (standing live trees) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha0.410034.3934.69
20-39 m2/ha2.14173.9576.15
40-59 m2/ha0.410035.3935.79
from 60 m2/ha..6.4236.423
total2.935150.02152.82
Eastern Jurato 19 m2/ha0.410011.11711.516
20-39 m2/ha..26.9826.98
40-59 m2/ha..8.7198.719
from 60 m2/ha..1.1581.158
total0.410047.8248.22
Western Plateauto 19 m2/ha..13.51513.515
20-39 m2/ha..18.41218.412
40-59 m2/ha..11.91711.917
from 60 m2/ha..4.5294.529
total..48.4348.43
Central Plateauto 19 m2/ha0.310021.11021.510
20-39 m2/ha..28.5828.58
40-59 m2/ha..13.71413.714
from 60 m2/ha..5.0245.024
total0.310068.4268.72
Eastern Plateauto 19 m2/ha..36.5836.58
20-39 m2/ha..45.4745.47
40-59 m2/ha..25.71025.710
from 60 m2/ha..4.3284.328
total..111.92111.92
Western Pre-Alpsto 19 m2/ha..12.61512.615
20-39 m2/ha0.410012.21512.615
40-59 m2/ha..13.31413.314
from 60 m2/ha..6.3236.323
total0.410044.4444.84
Central Pre-Alpsto 19 m2/ha0.410023.31123.711
20-39 m2/ha0.77135.1835.98
40-59 m2/ha0.410027.31027.610
from 60 m2/ha..10.41810.418
total1.45096.1297.52
Eastern Pre-Alpsto 19 m2/ha..12.51612.516
20-39 m2/ha0.410022.51122.911
40-59 m2/ha0.77123.91024.610
from 60 m2/ha..13.61513.615
total1.15772.5373.63
Northwestern Alpsto 19 m2/ha0.77117.91218.612
20-39 m2/ha1.84421.41123.210
40-59 m2/ha1.45012.11613.615
from 60 m2/ha0.7715.4256.124
total4.62756.8461.54
Central Alpsto 19 m2/ha0.7706.6227.320
20-39 m2/ha0.7708.3189.018
40-59 m2/ha1.0576.2227.220
from 60 m2/ha1.4492.1403.430
total3.82923.2827.07
Northeastern Alpsto 19 m2/ha1.8448.61910.416
20-39 m2/ha..10.41610.416
40-59 m2/ha1.1575.4246.422
from 60 m2/ha0.41004.3274.726
total3.23228.7731.96
Southwestern Alpsto 19 m2/ha3.83039.5843.37
20-39 m2/ha2.43734.6937.08
40-59 m2/ha1.74419.51221.312
from 60 m2/ha0.31007.2217.621
total8.220100.93109.13
Southeastern Alpsto 19 m2/ha1.45046.8848.27
20-39 m2/ha0.77151.6752.37
40-59 m2/ha0.77130.61031.310
from 60 m2/ha0.41008.4208.819
total3.233137.52140.62
Southern Alpsto 19 m2/ha3.53151.6755.17
20-39 m2/ha5.32552.0757.36
40-59 m2/ha2.14124.11126.211
from 60 m2/ha0.41006.7227.122
total11.417134.43145.72
Switzerlandto 19 m2/ha13.416335.93349.23
20-39 m2/ha14.515441.42455.82
40-59 m2/ha9.519257.83267.43
from 60 m2/ha3.53185.7689.26
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164988/151370

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · 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
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetercritical....7.54.28.35.612.511.712.15.78.62.6
less stable55.516.650.035.445.07.945.710.250.017.757.58.650.04.6
stable44.516.650.035.447.57.946.010.237.517.130.48.041.44.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetercritical2.10.62.50.67.10.814.22.27.71.56.41.25.70.4
less stable31.62.037.71.847.51.641.73.135.52.748.42.541.00.9
stable66.42.159.91.845.31.644.13.156.72.845.32.553.30.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical2.00.62.50.67.10.813.72.07.91.56.81.25.80.4
less stable32.02.037.71.847.41.642.12.935.92.649.12.441.30.9
stable66.02.059.81.845.41.644.32.956.32.744.12.452.90.9
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 #164989/151371

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical....1.1580.7710.41001.4503.532
less stable1.8450.41006.4233.8301.4506.82320.513
stable1.4500.41006.7233.8301.1583.63117.014
total3.2330.77114.2168.2202.83511.81741.09
outside perimetercritical4.0306.42323.61212.7168.8198.82064.17
less stable60.2796.55157.2437.3840.2866.96458.22
stable126.53153.53150.0439.4864.2562.66596.12
total190.61256.41330.7189.43113.13138.231118.41
totalcritical4.0306.42324.71213.3159.11910.21867.67
less stable62.0696.95163.6441.0741.6873.65478.72
stable127.93153.83156.7443.2765.2566.16613.02
total193.81257.11344.9197.63115.92150.021159.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164990/151372

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability %± %± %±
AGcritical......
less stable..37.74.437.74.4
stable..62.34.462.34.4
total..100.0.100.0.
AIcritical......
less stable..30.811.830.811.8
stable..69.211.869.211.8
total..100.0.100.0.
ARcritical..4.04.04.04.0
less stable..40.010.040.010.0
stable..56.010.056.010.0
total..100.0.100.0.
BEcritical..5.21.05.01.0
less stable41.011.943.12.343.02.2
stable59.011.951.72.351.92.2
total100.0.100.0.100.0.
BL/BScritical......
less stable100.0.36.16.837.46.8
stable..63.96.962.66.8
total100.0.100.0.100.0.
FRcritical..4.41.94.41.9
less stable..47.34.747.34.7
stable..48.34.748.34.7
total..100.0.100.0.
GEcritical......
less stable..29.518.729.518.7
stable..70.518.770.518.7
total..100.0.100.0.
GLcritical14.313.310.65.011.14.7
less stable42.918.952.88.251.27.5
stable42.918.936.77.937.77.3
total100.0.100.0.100.0.
GRcritical15.88.46.41.16.81.1
less stable47.311.537.52.237.92.2
stable37.011.156.12.355.42.3
total100.0.100.0.100.0.
JUcritical..4.82.34.62.3
less stable33.327.436.85.336.75.2
stable66.727.358.45.458.75.3
total100.0.100.0.100.0.
LUcritical..8.62.58.62.5
less stable..40.14.440.14.4
stable..51.34.551.34.5
total..100.0.100.0.
NEcritical......
less stable..31.05.031.05.0
stable..69.05.069.05.0
total..100.0.100.0.
NWcritical..5.35.25.05.0
less stable..68.410.865.010.8
stable100.0.26.310.330.010.5
total100.0.100.0.100.0.
OWcritical..6.13.55.93.3
less stable100.0.47.07.149.17.0
stable..46.87.245.07.0
total100.0.100.0.100.0.
SGcritical..3.41.53.31.5
less stable25.021.752.14.151.34.1
stable75.021.744.54.145.34.1
total100.0.100.0.100.0.
SHcritical..2.82.82.82.8
less stable..25.07.325.07.3
stable..72.27.472.27.4
total..100.0.100.0.
SOcritical..1.21.21.21.2
less stable100.0.35.45.336.95.3
stable..63.45.361.95.3
total100.0.100.0.100.0.
SZcritical..9.33.49.03.3
less stable33.327.442.75.742.35.6
stable66.727.348.05.848.75.7
total100.0.100.0.100.0.
TGcritical..2.82.02.82.0
less stable..41.15.941.15.9
stable..56.15.956.15.9
total..100.0.100.0.
TIcritical9.16.17.11.57.21.4
less stable63.610.350.52.951.42.8
stable27.39.542.42.841.42.7
total100.0.100.0.100.0.
URcritical22.213.99.14.411.34.4
less stable44.416.747.07.546.66.8
stable33.315.843.97.442.26.7
total100.0.100.0.100.0.
VDcritical..4.31.34.21.2
less stable100.0.32.52.933.02.9
stable..63.33.062.83.0
total100.0.100.0.100.0.
VScritical8.35.613.32.012.91.9
less stable45.710.241.52.941.82.8
stable46.010.245.32.945.32.8
total100.0.100.0.100.0.
ZGcritical......
less stable..35.713.235.713.2
stable..64.313.364.313.3
total..100.0.100.0.
ZHcritical..4.11.74.11.7
less stable..35.24.035.24.0
stable..60.74.160.74.1
total..100.0.100.0.
Switzerlandcritical8.52.65.70.45.80.4
less stable50.24.641.00.941.30.9
stable41.34.653.30.952.90.9
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164991/151373

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonstand stability1000 ha± %1000 ha± %1000 ha± %
AGcritical......
less stable..18.51218.512
stable..30.6730.67
total..49.1249.12
AIcritical......
less stable..1.6391.639
stable..3.6223.622
total..5.2125.212
ARcritical..0.31000.3100
less stable..3.2253.225
stable..4.5184.518
total..8.058.05
BEcritical..8.5208.520
less stable2.43870.5672.95
stable3.43184.6588.05
total5.824163.72169.52
BL/BScritical......
less stable0.41007.3197.719
stable..13.01213.012
total0.410020.3520.75
FRcritical..1.9441.944
less stable..20.21020.210
stable..20.51020.510
total..42.6342.63
GEcritical......
less stable..0.9650.965
stable..2.2342.234
total..3.1203.120
GLcritical0.41001.5491.943
less stable1.2577.7188.916
stable1.2575.4246.521
total2.73614.61017.37
GRcritical1.05810.41811.417
less stable3.13360.7663.86
stable2.53890.9593.44
total6.623162.02168.62
JUcritical..1.6491.649
less stable0.410012.01512.415
stable0.87019.11019.99
total1.25732.7333.93
LUcritical..3.5293.529
less stable..16.11116.111
stable..20.5920.59
total..40.0340.03
NEcritical......
less stable..8.7178.717
stable..19.4919.49
total..28.2428.24
NWcritical..0.41000.4100
less stable..5.0195.019
stable0.41001.9402.336
total0.41007.3107.78
OWcritical..1.1571.157
less stable0.7708.6169.315
stable..8.6168.616
total0.77018.3519.04
SGcritical..1.8441.844
less stable0.410027.5927.89
stable1.15723.51024.610
total1.45052.8454.24
SHcritical..0.41000.4100
less stable..3.2293.229
stable..9.3119.311
total..12.8312.83
SOcritical..0.41000.4100
less stable0.87011.01611.715
stable..19.7919.79
total0.87031.0431.83
SZcritical..2.5362.536
less stable0.410011.61411.914
stable0.77013.01313.813
total1.15727.2528.35
TGcritical..0.6700.670
less stable..8.7158.715
stable..11.91111.911
total..21.3321.33
TIcritical0.7717.8218.520
less stable5.02655.5660.56
stable2.14146.6748.77
total7.921109.83117.72
URcritical0.7701.4502.040
less stable1.3497.1208.417
stable1.0576.6197.617
total3.03115.01118.09
VDcritical..4.2304.230
less stable0.87131.9932.69
stable..62.1562.15
total0.87198.1298.92
VScritical0.77113.41514.115
less stable3.83041.8845.67
stable3.83045.7749.57
total8.220100.93109.13
ZGcritical......
less stable..2.1372.137
stable..3.9213.921
total..6.066.06
ZHcritical..2.1402.140
less stable..18.01218.012
stable..31.0731.07
total..51.1251.12
Switzerlandcritical3.53263.7767.27
less stable20.613459.42480.02
stable17.014598.02615.02
total41.091121.111162.11

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #164992/151374

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %±
inside perimetercritical......10.63.89.45.28.62.6
less stable55.616.6100.0.37.517.145.46.159.38.750.04.6
stable44.416.6..62.517.144.06.131.38.241.44.6
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetercritical2.20.62.50.66.91.09.00.96.21.25.70.4
less stable31.22.037.61.945.92.142.71.648.42.640.90.9
stable66.52.059.91.947.22.148.31.645.32.653.30.9
total100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical2.20.62.50.66.81.09.10.96.51.25.80.4
less stable31.62.037.71.945.72.042.91.549.32.541.30.9
stable66.22.059.81.947.42.048.01.544.22.452.90.9
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 #164993/151375

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical......2.4381.1583.532
less stable1.8450.41001.15810.4186.72220.413
stable1.550..1.84510.0183.63116.914
total3.3330.41002.93522.81211.41740.79
outside perimetercritical4.4295.62514.81530.9108.42064.07
less stable61.7786.1597.75147.0465.16457.62
stable131.43137.13100.55166.0460.96595.92
total197.51228.81213.02343.92134.431117.61
totalcritical4.4295.62514.81533.3109.51967.57
less stable63.5686.4598.75157.4471.85477.92
stable132.93137.13102.35176.1364.46612.82
total200.81229.11215.92366.71145.721158.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164994/151376

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · 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
rockfall SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetercritical....13.07.08.35.622.213.99.45.28.62.6
less stable59.915.550.011.839.110.245.710.244.416.659.38.750.04.6
stable40.115.550.011.847.810.446.010.233.315.731.38.241.44.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetercritical2.30.47.51.16.41.313.32.07.11.36.21.25.70.4
less stable34.71.448.82.146.12.741.52.937.02.448.42.641.00.9
stable62.91.443.72.147.62.745.32.955.92.545.32.653.30.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical2.30.47.31.16.81.312.91.97.41.36.51.25.80.4
less stable34.91.448.82.145.62.641.82.837.22.449.32.541.30.9
stable62.71.443.92.147.62.645.32.855.42.544.22.452.90.9
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 #164995/151377

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · 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
rockfall SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical....1.0580.7710.7711.1583.532
less stable2.1413.2333.1333.8301.4506.72220.413
stable1.4503.2333.8303.8301.1583.63116.914
total3.6326.5237.9208.2203.23311.41740.89
outside perimetercritical10.01914.8157.72113.4159.8188.42064.17
less stable148.1496.3556.1641.8850.9765.16458.32
stable268.3286.2557.9645.7776.8560.96595.72
total426.41197.32121.73100.93137.52134.431118.11
totalcritical10.01914.8158.82014.11510.5189.51967.67
less stable150.2499.5559.2645.6752.3771.85478.72
stable269.7289.4561.7649.5777.9564.46612.62
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164996/151378

NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juracritical..2.40.72.30.7
less stable49.817.730.02.230.42.2
stable50.217.767.62.367.32.3
total100.0.100.0.100.0.
Eastern Juracritical..1.71.21.61.2
less stable100.0.35.64.436.14.3
stable..62.84.462.24.4
total100.0.100.0.100.0.
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 stable100.0.38.63.338.93.3
stable..58.73.358.43.3
total100.0.100.0.100.0.
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..5.82.25.82.1
less stable..49.14.648.74.6
stable100.0.45.14.645.54.5
total100.0.100.0.100.0.
Central Pre-Alpscritical..9.01.78.81.7
less stable50.025.046.63.146.73.0
stable50.025.044.43.044.53.0
total100.0.100.0.100.0.
Eastern Pre-Alpscritical..4.91.54.91.5
less stable33.327.342.93.542.73.5
stable66.727.352.23.552.43.5
total100.0.100.0.100.0.
Northwestern Alpscritical..6.31.95.81.8
less stable53.813.852.24.052.33.8
stable46.213.941.63.941.93.8
total100.0.100.0.100.0.
Central Alpscritical18.211.77.53.39.03.3
less stable45.515.144.86.144.95.7
stable36.414.647.76.146.15.7
total100.0.100.0.100.0.
Northeastern Alpscritical11.110.58.73.29.03.0
less stable33.315.855.05.652.85.3
stable55.616.636.35.438.25.2
total100.0.100.0.100.0.
Southwestern Alpscritical8.35.613.32.012.91.9
less stable45.710.241.52.941.82.8
stable46.010.245.32.945.32.8
total100.0.100.0.100.0.
Southeastern Alpscritical22.213.97.11.37.41.3
less stable44.416.637.02.437.22.4
stable33.315.755.92.555.42.5
total100.0.100.0.100.0.
Southern Alpscritical9.45.26.21.26.51.2
less stable59.38.748.42.649.32.5
stable31.38.245.32.644.22.4
total100.0.100.0.100.0.
Switzerlandcritical8.62.65.70.45.80.4
less stable49.94.641.00.941.30.9
stable41.54.653.30.952.90.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164997/151379

NFI4b

forest area: rockfall 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
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juracritical..3.6313.631
less stable1.45045.0846.48
stable1.450101.44102.84
total2.935150.02152.82
Eastern Juracritical..0.8700.870
less stable0.410017.01217.412
stable..30.0730.07
total0.410047.8248.22
Western Plateaucritical..1.2571.257
less stable..16.91316.913
stable..30.3830.38
total..48.4348.43
Central Plateaucritical..1.9401.940
less stable0.310026.4926.79
stable..40.1640.16
total0.310068.4268.72
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 stable..21.81021.810
stable0.410020.01120.410
total0.410044.4444.84
Central Pre-Alpscritical..8.6208.620
less stable0.77144.8745.57
stable0.77142.7743.47
total1.45096.1297.52
Eastern Pre-Alpscritical..3.6313.631
less stable0.410031.1931.48
stable0.77137.9738.67
total1.15772.5373.63
Northwestern Alpscritical..3.6313.631
less stable2.53729.7932.28
stable2.14023.61025.810
total4.62756.8461.54
Central Alpscritical0.7701.7442.437
less stable1.74410.41612.114
stable1.44911.11512.414
total3.82923.2827.07
Northeastern Alpscritical0.41002.5372.934
less stable1.15715.81216.811
stable1.84410.41612.215
total3.23228.7731.96
Southwestern Alpscritical0.77113.41514.115
less stable3.83041.8845.67
stable3.83045.7749.57
total8.220100.93109.13
Southeastern Alpscritical0.7719.81810.518
less stable1.45050.9752.37
stable1.15876.8577.95
total3.233137.52140.62
Southern Alpscritical1.1588.4209.519
less stable6.72265.1671.85
stable3.63160.9664.46
total11.417134.43145.72
Switzerlandcritical3.53264.1767.67
less stable20.413459.22479.62
stable17.014597.62614.52
total40.991120.811161.71

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164998/151380
search result: 155765 entries on 6491 pages

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