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NFI4b

forest area: altitudinal vegetation zone · degree of cover (aerial photo, 5 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpine0-20%............
21-40%............
41-60%....0.41003.5310.7714.528
61-80%......2.4381.8454.229
over 80%......0.3100..0.3100
total....0.41006.2232.5389.119
lower subalpine0-20%......0.771..0.771
21-40%0.4100....3.532..3.830
41-60%....0.41008.7201.45010.418
61-80%....2.2417.6212.14111.917
over 80%0.4100..0.41006.9221.8459.419
total0.771..2.93527.3115.32536.310
upper montane0-20%......0.771..0.771
21-40%....0.7711.0580.41002.141
41-60%....1.8453.8301.1586.723
61-80%0.771..1.1587.6211.84511.218
over 80%1.550..3.63113.8162.83521.713
total2.241..7.22227.0116.02442.49
lower montane0-20%............
21-40%............
41-60%......0.3100..0.3100
61-80%1.158..0.41001.450..2.835
over 80%0.771..1.8452.835..5.326
total1.845..2.2414.528..8.520
colline/submontane0-20%............
21-40%............
41-60%....0.41000.771..1.158
61-80%....0.4100....0.4100
over 80%............
total....0.7710.771..1.450
total0-20%......1.450..1.450
21-40%0.4100..0.7714.5280.41005.924
41-60%....2.93517.0143.23323.112
61-80%1.845..4.03019.0135.72530.511
over 80%2.638..5.82523.8124.62736.810
total4.727..13.31665.7713.81597.66

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169767/156150

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
avalanches SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter4.72820.21313.41524.41115.51412.41690.56
outside perimeter50.4888.0557.5648.3752.7788.84385.82
total55.18108.2470.9572.7568.25101.34476.32

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169768/156151

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region %± %± %±
Western Jura14.63.885.43.8100.0.
Eastern Jura..100.0.100.0.
Western Plateau..100.0.100.0.
Central Plateau..100.0.100.0.
Eastern Plateau..100.0.100.0.
Western Pre-Alps11.73.988.33.9100.0.
Central Pre-Alps14.73.185.33.1100.0.
Eastern Pre-Alps7.32.592.72.5100.0.
Northwestern Alps28.14.471.94.4100.0.
Central Alps37.88.062.28.0100.0.
Northeastern Alps29.36.070.76.0100.0.
Southwestern Alps33.53.266.53.2100.0.
Southeastern Alps22.73.077.33.0100.0.
Southern Alps12.31.987.71.9100.0.
Switzerland19.01.181.01.1100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169769/156152

NFI4b

forest area: altitudinal vegetation zone · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
upper subalpine0-20%..............
21-40%..............
41-60%..100.0...60.015.550.017.728.617.149.99.8
61-80%......40.015.537.517.171.417.146.29.8
over 80%........12.511.7..3.93.8
total..100.0...100.0.100.0.100.0.100.0.
lower subalpine0-20%..14.39.4........2.01.4
21-40%50.335.47.16.914.29.39.94.716.78.8..10.63.0
41-60%..14.39.421.711.134.17.438.911.526.911.528.84.4
61-80%..42.913.235.612.829.27.127.810.639.912.632.74.6
over 80%49.735.421.411.028.512.126.86.916.78.833.212.225.94.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
upper montane0-20%..2.62.65.25.1......1.71.2
21-40%..10.55.0..4.84.7..5.95.75.02.0
41-60%..15.85.95.25.19.56.435.010.717.89.315.83.3
61-80%33.319.323.76.926.510.223.89.330.010.329.311.026.54.0
over 80%66.719.347.48.163.011.161.910.635.010.746.912.151.14.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
lower montane0-20%..............
21-40%..............
41-60%........20.017.9..4.24.1
61-80%60.021.925.021.720.012.7..40.021.9..33.59.7
over 80%40.021.975.021.780.012.6..40.021.9..62.39.9
total100.0.100.0.100.0...100.0...100.0.
colline/submontane0-20%..............
21-40%..............
41-60%..50.135.4..100.0.100.0...74.821.8
61-80%..49.935.4........25.221.8
over 80%..............
total..100.0...100.0.100.0...100.0.
total0-20%..5.12.92.32.3......1.50.7
21-40%7.87.58.53.64.63.26.93.05.83.22.62.56.11.4
41-60%..17.04.99.44.531.55.438.56.823.26.823.62.5
61-80%38.413.528.85.928.06.928.75.330.76.440.97.931.22.8
over 80%53.813.840.76.455.77.632.85.525.06.033.37.537.62.9
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 #169770/156153

NFI2

forest area: avalanches SilvaProtect, modelled and assigned · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
avalanches SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region1000 ha± %1000 ha± %1000 ha± %
Western Jura4.62727.11031.810
Eastern Jura..5.5255.525
Western Plateau..4.9284.928
Central Plateau..6.8206.820
Eastern Plateau..6.1246.124
Western Pre-Alps2.93522.21025.29
Central Pre-Alps6.82239.4846.37
Eastern Pre-Alps2.93536.4739.37
Northwestern Alps10.41726.4936.87
Central Alps4.8257.91912.713
Northeastern Alps6.12214.71320.810
Southwestern Alps24.41148.3772.75
Southeastern Alps15.51452.7768.25
Southern Alps12.41688.84101.34
Switzerland90.86387.52478.22

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169771/156154

NFI4b

forest area: altitudinal vegetation zone · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpine0-20%..............
21-40%..............
41-60%..0.4100..2.1411.4500.7714.528
61-80%......1.4501.1581.8454.229
over 80%........0.4100..0.4100
total..0.4100..3.4312.8352.5389.119
lower subalpine0-20%..0.771........0.771
21-40%0.41000.41000.7711.4501.158..3.930
41-60%..0.7711.1584.8262.5381.45010.518
61-80%..2.2411.7454.1281.8452.14111.917
over 80%0.41001.1581.4503.8301.1581.8459.419
total0.7715.0264.82614.1156.3235.32536.310
upper montane0-20%..0.41000.3100......0.771
21-40%..1.450..0.3100..0.41002.141
41-60%..2.2410.31000.7712.5381.1586.723
61-80%0.7713.2331.7451.7442.1411.84511.318
over 80%1.4506.5234.1284.5272.5382.83521.813
total2.14113.7166.6227.2217.0226.02442.79
lower montane0-20%..............
21-40%..............
41-60%........0.4100..0.4100
61-80%1.1580.41000.771..0.771..2.835
over 80%0.7711.1582.835..0.771..5.326
total1.8451.4503.431..1.845..8.420
colline/submontane0-20%..............
21-40%..............
41-60%..0.4100..0.31000.4100..1.158
61-80%..0.4100........0.4100
over 80%..............
total..0.771..0.31000.4100..1.450
total0-20%..1.1580.3100......1.450
21-40%0.41001.8450.7711.7451.1580.41006.024
41-60%..3.6311.4507.9207.0223.23323.112
61-80%1.8456.1244.2297.2215.6255.72530.611
over 80%2.5388.7208.3208.2204.6274.62736.810
total4.72821.31214.91525.01118.31313.81598.06

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169772/156155

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned %± %± %± %± %± %± %±
inside perimeter8.52.72.51.87.21.112.52.43.91.610.01.88.00.7
outside perimeter91.52.797.51.892.81.187.52.496.11.690.01.892.00.7
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 #169773/156156

NFI4b

forest area: altitudinal vegetation zone · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
Western Jura0-20%............
21-40%..51.035.3......8.07.6
41-60%............
61-80%....33.319.360.021.9..38.313.5
over 80%..49.035.366.719.340.021.9..53.713.8
total..100.0.100.0.100.0...100.0.
Eastern Jura0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Western Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Central Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Eastern Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Western Pre-Alps0-20%............
21-40%....28.617.1....22.314.0
41-60%....28.617.1..48.835.333.015.7
61-80%....14.313.3..51.235.322.314.0
over 80%....28.617.1....22.314.0
total....100.0...100.0.100.0.
Central Pre-Alps0-20%............
21-40%............
41-60%100.0.16.715.230.114.5....25.09.7
61-80%..66.719.310.09.5....25.09.7
over 80%..16.715.260.015.5100.0...50.011.2
total100.0.100.0.100.0.100.0...100.0.
Eastern Pre-Alps0-20%............
21-40%............
41-60%............
61-80%..100.0.33.327.333.327.3..50.017.7
over 80%....66.727.366.727.3..50.017.7
total..100.0.100.0.100.0...100.0.
Northwestern Alps0-20%..25.015.34.84.7....10.05.5
21-40%..12.511.79.56.4....10.05.5
41-60%..12.511.74.84.7....6.74.6
61-80%..25.015.333.310.3100.0...33.38.6
over 80%..25.015.347.610.9....40.09.0
total..100.0.100.0.100.0...100.0.
Central Alps0-20%....11.010.4....5.95.7
21-40%..14.313.3......5.95.7
41-60%..28.617.2......11.77.8
61-80%..14.313.322.914.2....18.09.4
over 80%..42.918.866.115.9100.0...58.512.0
total..100.0.100.0.100.0...100.0.
Northeastern Alps0-20%............
21-40%..19.917.9......5.65.4
41-60%..20.218.014.313.3....11.27.5
61-80%..39.922.028.617.116.715.3..27.810.6
over 80%..19.917.957.118.883.315.2..55.511.7
total..100.0.100.0.100.0...100.0.
Southwestern Alps0-20%............
21-40%..9.94.74.84.7....6.93.0
41-60%60.015.534.17.49.56.4..100.0.31.55.4
61-80%40.015.529.27.123.89.3....28.75.3
over 80%..26.86.961.910.6....32.85.5
total100.0.100.0.100.0...100.0.100.0.
Southeastern Alps0-20%............
21-40%..16.78.8......5.83.2
41-60%50.017.738.911.535.010.720.017.9100.0.38.56.8
61-80%37.517.127.810.630.010.340.021.9..30.76.4
over 80%12.511.716.78.835.010.740.021.9..25.06.0
total100.0.100.0.100.0.100.0.100.0.100.0.
Southern Alps0-20%............
21-40%....5.95.7....2.62.5
41-60%28.617.126.911.517.89.3....23.26.8
61-80%71.417.139.912.629.311.0....40.97.9
over 80%..33.212.246.912.1....33.37.5
total100.0.100.0.100.0.....100.0.
Switzerland0-20%..2.01.41.61.2....1.40.7
21-40%..10.73.05.02.0....6.11.4
41-60%49.99.828.74.415.83.34.14.074.122.223.62.5
61-80%46.29.832.84.626.54.033.39.625.922.231.22.8
over 80%3.93.825.94.351.14.562.69.9..37.62.9
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169774/156157

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter3.2330.77113.5168.2202.14110.31838.19
outside perimeter34.9927.211174.9357.5651.9692.94439.42
total38.2927.911188.4365.7554.16103.24477.52

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169775/156158

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
canton %± %± %±
AG..100.0.100.0.
AI..100.0.100.0.
AR..100.0.100.0.
BE7.31.892.71.8100.0.
BL/BS10.09.690.09.3100.0.
FR..100.0.100.0.
GE......
GL26.98.873.18.8100.0.
GR6.01.594.01.5100.0.
JU10.05.590.05.2100.0.
LU..100.0.100.0.
NE..100.0.100.0.
NW14.313.585.713.2100.0.
OW7.75.392.35.3100.0.
SG4.82.395.22.3100.0.
SH..100.0.100.0.
SO33.319.366.719.4100.0.
SZ7.54.292.54.2100.0.
TG..100.0.100.0.
TI8.71.991.31.9100.0.
UR28.48.671.68.6100.0.
VD3.72.696.32.6100.0.
VS11.32.288.72.2100.0.
ZG..100.0.100.0.
ZH..100.0.100.0.
Switzerland8.00.792.00.7100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169776/156159

NFI4b

forest area: altitudinal vegetation zone · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%............
21-40%..0.4100......0.4100
41-60%............
61-80%....0.7711.158..1.845
over 80%..0.41001.4500.771..2.538
total..0.7712.1411.845..4.627
Eastern Jura0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Western Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Central Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Eastern Plateau0-20%............
21-40%............
41-60%............
61-80%............
over 80%............
total............
Western Pre-Alps0-20%............
21-40%....0.770....0.770
41-60%....0.770..0.41001.158
61-80%....0.4100..0.41000.770
over 80%....0.770....0.770
total....2.637..0.7713.333
Central Pre-Alps0-20%............
21-40%............
41-60%0.41000.41001.158....1.845
61-80%..1.4500.4100....1.844
over 80%..0.41002.2401.158..3.631
total0.41002.2403.6311.158..7.222
Eastern Pre-Alps0-20%............
21-40%............
41-60%............
61-80%..0.7710.41000.4100..1.450
over 80%....0.7710.771..1.450
total..0.7711.1571.157..2.935
Northwestern Alps0-20%..0.7710.4100....1.157
21-40%..0.41000.771....1.157
41-60%..0.41000.4100....0.771
61-80%..0.7712.5370.4100..3.631
over 80%..0.7713.631....4.328
total..2.9357.5210.4100..10.717
Central Alps0-20%....0.3100....0.3100
21-40%..0.3100......0.3100
41-60%..0.770......0.770
61-80%..0.31000.771....1.158
over 80%..1.0572.1400.3100..3.430
total..2.4373.1320.3100..5.923
Northeastern Alps0-20%............
21-40%..0.4100......0.4100
41-60%..0.41000.4100....0.771
61-80%..0.7700.7700.4100..1.844
over 80%..0.41001.4491.844..3.630
total..1.8442.5372.140..6.422
Southwestern Alps0-20%............
21-40%..1.4500.3100....1.745
41-60%2.1414.8260.771..0.31007.920
61-80%1.4504.1281.744....7.221
over 80%..3.8304.527....8.220
total3.43114.1157.221..0.310025.011
Southeastern Alps0-20%............
21-40%..1.158......1.158
41-60%1.4502.5382.5380.41000.41007.022
61-80%1.1581.8452.1410.771..5.625
over 80%0.41001.1582.5380.771..4.627
total2.8356.3237.0221.8450.410018.313
Southern Alps0-20%............
21-40%....0.4100....0.4100
41-60%0.7711.4501.158....3.233
61-80%1.8452.1411.845....5.725
over 80%..1.8452.835....4.627
total2.5385.3256.024....13.815
Switzerland0-20%..0.7710.771....1.450
21-40%..3.9302.241....6.024
41-60%4.52810.5186.8230.41001.15823.212
61-80%4.22911.91711.3182.8350.410030.711
over 80%0.41009.41921.8135.326..37.010
total9.11936.41042.898.5201.45098.26

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169777/156160

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
canton1000 ha± %1000 ha± %1000 ha± %
AG..1.2571.257
AI..3.2213.221
AR..3.2253.225
BE5.52569.5675.05
BL/BS0.41003.7314.129
FR..16.81216.812
GE......
GL2.7367.31910.014
GR5.22682.4587.65
JU1.25710.51611.715
LU..6.9206.920
NE..4.5254.525
NW0.41002.3362.732
OW0.7709.0159.714
SG1.45028.9930.48
SH..0.7700.770
SO0.8701.5492.340
SZ1.15713.41314.512
TG..3.0303.030
TI7.22274.8582.04
UR2.6346.6209.315
VD0.87119.71320.512
VS8.22064.5572.75
ZG..3.9213.921
ZH..1.4491.449
Switzerland38.29438.92477.12

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169778/156161

NFI4b

forest area: altitudinal vegetation zone · stand structure · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonestand structure %± %± %± %± %± %± %±
upper subalpinen/a..............
single-layered......50.015.825.015.357.118.742.29.7
multi-layered......30.014.550.017.714.313.230.79.1
stratified......20.012.712.511.728.617.119.27.7
clustered structure....100.0...12.511.7..7.85.3
total....100.0.100.0.100.0.100.0.100.0.
lower subalpinen/a....3.43.45.33.65.35.1..3.91.9
single-layered49.635.4..37.99.041.07.931.610.733.212.237.44.7
multi-layered....34.58.825.67.031.610.746.812.931.84.6
stratified....20.77.528.27.226.310.119.910.324.04.2
clustered structure50.435.4..3.43.4..5.35.1..2.91.7
total100.0...100.0.100.0.100.0.100.0.100.0.
upper montanen/a....4.82.7..6.76.4..3.31.6
single-layered16.715.2..41.36.233.311.126.711.447.511.538.14.4
multi-layered66.719.3..39.76.250.011.853.312.942.011.344.64.5
stratified16.715.2..14.34.416.78.813.38.810.57.014.03.2
clustered structure..............
total100.0...100.0.100.0.100.0.100.0.100.0.
lower montanen/a..............
single-layered40.021.9..44.411.7......41.710.1
multi-layered40.021.9..55.611.7..100.0...54.110.2
stratified20.017.9..........4.24.1
clustered structure..............
total100.0...100.0...100.0...100.0.
colline/submontanen/a..............
single-layered....100.0.......50.425.0
multi-layered......100.0.....24.121.1
stratified........100.0...25.521.9
clustered structure..............
total....100.0.100.0.100.0...100.0.
totaln/a....3.51.73.02.14.53.1..2.91.0
single-layered30.712.8..41.64.639.75.927.36.743.97.838.72.9
multi-layered46.113.8..39.84.633.85.743.27.539.07.639.12.9
stratified15.410.0..13.33.223.55.120.56.117.05.917.52.3
clustered structure7.87.5..1.81.2..4.53.1..1.80.8
total100.0...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 #169779/156162

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned %± %± %± %± %± %±
inside perimeter8.72.82.01.92.60.910.11.210.21.88.00.7
outside perimeter91.32.898.01.997.40.989.91.289.81.892.00.7
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 #169780/156163

NFI4b

forest area: altitudinal vegetation zone · stand structure · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonestand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpinen/a..............
single-layered......1.7440.7711.4503.830
multi-layered......1.0581.4500.41002.835
stratified......0.7710.41000.7711.745
clustered structure....0.4100..0.4100..0.771
total....0.41003.4312.8352.5389.119
lower subalpinen/a....0.41000.7710.4100..1.450
single-layered0.4100..3.9305.5242.1411.84513.616
multi-layered....3.5313.4312.1412.53811.617
stratified....2.1413.8301.8441.1588.720
clustered structure0.4100..0.4100..0.4100..1.158
total0.771..10.31813.4156.7225.42536.410
upper montanen/a....1.158..0.4100..1.450
single-layered0.4100..9.2192.1411.4503.23316.315
multi-layered1.450..8.9203.1332.8352.83519.113
stratified0.4100..3.2331.0580.7710.7716.024
clustered structure..............
total2.241..22.3126.2235.3256.82342.79
lower montanen/a..............
single-layered0.771..2.835......3.632
multi-layered0.771..3.531..0.4100..4.628
stratified0.4100..........0.4100
clustered structure..............
total1.845..6.423..0.4100..8.520
colline/submontanen/a..............
single-layered....0.771......0.771
multi-layered......0.3100....0.3100
stratified........0.4100..0.4100
clustered structure..............
total....0.7710.31000.4100..1.450
totaln/a....1.4500.7710.771..2.835
single-layered1.450..16.7149.2184.2286.42338.09
multi-layered2.241..16.0157.9206.7225.72538.49
stratified0.771..5.3265.5243.2332.53817.214
clustered structure0.4100..0.771..0.771..1.845
total4.727..40.1923.31115.61414.61598.26

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169781/156164

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter3.3330.41002.93521.11210.31837.99
outside perimeter34.3917.614107.84187.8391.04438.42
total37.6917.914110.74208.93101.34476.32

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169782/156165

NFI4b

forest area: altitudinal vegetation zone · stand structure · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
cantonstand structure %± %± %± %± %± %±
AGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
AIn/a............
single-layered..100.0.100.0.....100.0.
multi-layered............
stratified............
clustered structure............
total..100.0.100.0.....100.0.
ARn/a............
single-layered....100.0.....100.0.
multi-layered............
stratified............
clustered structure............
total....100.0.....100.0.
BEn/a..9.08.68.05.4....7.14.0
single-layered..45.215.040.09.850.025.0100.0.42.97.6
multi-layered..18.111.640.09.850.025.0..33.27.3
stratified..18.111.612.06.5....11.95.0
clustered structure100.0.9.79.2......4.93.4
total100.0.100.0.100.0.100.0.100.0.100.0.
BL/BSn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
FRn/a....50.035.5....33.327.3
single-layered........100.0.33.327.3
multi-layered............
stratified....50.035.5....33.327.3
clustered structure............
total....100.0...100.0.100.0.
GEn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
GLn/a............
single-layered..20.418.350.035.725.021.8..27.513.6
multi-layered..20.418.350.035.775.021.8..45.815.1
stratified..38.921.8......17.511.3
clustered structure..20.418.3......9.28.8
total..100.0.100.0.100.0...100.0.
GRn/a..4.84.73.73.6....3.12.2
single-layered30.014.528.69.937.19.320.017.9..31.35.8
multi-layered50.015.833.310.344.49.680.017.9..43.76.2
stratified10.09.528.69.914.86.8..100.0.18.84.9
clustered structure10.09.54.84.7......3.12.2
total100.0.100.0.100.0.100.0.100.0.100.0.
JUn/a............
single-layered............
multi-layered....100.0.....50.035.5
stratified......100.0...50.035.5
clustered structure............
total....100.0.100.0...100.0.
LUn/a............
single-layered....100.0.....100.0.
multi-layered............
stratified............
clustered structure............
total....100.0.....100.0.
NEn/a............
single-layered............
multi-layered....50.035.5100.0...66.727.3
stratified....50.035.5....33.327.4
clustered structure............
total....100.0.100.0...100.0.
NWn/a............
single-layered............
multi-layered..100.0...100.0...66.727.7
stratified....100.0.....33.327.8
clustered structure............
total..100.0.100.0.100.0...100.0.
OWn/a............
single-layered..33.327.567.726.9100.0...57.318.9
multi-layered..33.327.532.326.9....28.017.0
stratified..33.327.5......14.713.6
clustered structure............
total..100.0.100.0.100.0...100.0.
SGn/a............
single-layered....33.319.350.025.1..40.015.5
multi-layered....66.719.350.025.1..60.015.5
stratified............
clustered structure............
total....100.0.100.0...100.0.
SHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SOn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SZn/a............
single-layered..50.035.6..100.0...28.617.2
multi-layered..50.035.6100.0.....71.417.1
stratified............
clustered structure............
total..100.0.100.0.100.0...100.0.
TGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
TIn/a............
single-layered60.021.933.213.640.015.5....40.79.5
multi-layered..50.114.450.015.8....40.89.5
stratified40.021.916.610.710.09.5....18.57.5
clustered structure............
total100.0.100.0.100.0.....100.0.
URn/a............
single-layered..20.018.050.025.1100.0...40.015.6
multi-layered..60.022.025.021.8....40.015.6
stratified..20.018.025.021.8....20.012.7
clustered structure............
total..100.0.100.0.100.0...100.0.
VDn/a............
single-layered....33.315.7100.0...36.414.5
multi-layered..100.0.55.616.6....54.515.0
stratified....11.110.5....9.18.7
clustered structure............
total..100.0.100.0.100.0...100.0.
VSn/a..5.03.5......2.82.0
single-layered50.015.843.87.838.110.6....42.45.8
multi-layered30.014.524.46.742.910.8..100.0.31.55.4
stratified20.012.726.86.919.08.6....23.34.9
clustered structure............
total100.0.100.0.100.0...100.0.100.0.
ZGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
ZHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
Switzerlandn/a..3.91.93.31.6....2.91.0
single-layered42.49.737.24.737.74.441.510.151.225.038.52.9
multi-layered30.69.031.94.644.94.554.010.223.720.939.32.9
stratified19.37.824.04.214.03.24.54.425.121.717.52.3
clustered structure7.65.23.01.7......1.80.8
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169783/156166

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned %± %± %± %± %± %± %±
inside perimeter6.52.05.71.310.72.211.32.23.11.210.21.88.00.7
outside perimeter93.52.094.31.389.32.288.72.296.91.289.81.892.00.7
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 #169784/156167

NFI4b

forest area: altitudinal vegetation zone · stand structure · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
altitudinal vegetation zone
upper subalpinelower subalpineupper montanelower montanecolline/submontanetotal
cantonstand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
AIn/a............
single-layered..0.6690.3100....1.054
multi-layered............
stratified............
clustered structure............
total..0.6690.3100....1.054
ARn/a............
single-layered....0.3100....0.3100
multi-layered............
stratified............
clustered structure............
total....0.3100....0.3100
BEn/a..0.31000.771....1.058
single-layered..1.7453.4310.7710.41006.223
multi-layered..0.7713.4310.771..4.826
stratified..0.7711.058....1.745
clustered structure0.31000.4100......0.771
total0.31003.8308.5201.4500.410014.415
BL/BSn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
FRn/a....0.4100....0.4100
single-layered........0.41000.4100
multi-layered............
stratified....0.4100....0.4100
clustered structure............
total....0.770..0.41001.157
GEn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
GLn/a............
single-layered..0.41000.41000.4100..1.257
multi-layered..0.41000.41001.257..1.943
stratified..0.771......0.771
clustered structure..0.4100......0.4100
total..1.9440.8701.549..4.228
GRn/a..0.31000.3100....0.771
single-layered1.0582.1413.5310.3100..7.022
multi-layered1.7452.4384.2291.450..9.818
stratified0.31002.1411.450..0.41004.229
clustered structure0.31000.3100......0.771
total3.5317.3219.4191.7450.410022.412
JUn/a............
single-layered............
multi-layered....0.4100....0.4100
stratified......0.4100..0.4100
clustered structure............
total....0.41000.4100..0.870
LUn/a............
single-layered....0.670....0.670
multi-layered............
stratified............
clustered structure............
total....0.670....0.670
NEn/a............
single-layered............
multi-layered....0.31000.3100..0.670
stratified....0.3100....0.3100
clustered structure............
total....0.6700.3100..1.057
NWn/a............
single-layered............
multi-layered..0.4100..0.4100..0.869
stratified....0.4100....0.4100
clustered structure............
total..0.41000.41000.4100..1.255
OWn/a............
single-layered..0.41000.7710.4100..1.549
multi-layered..0.41000.3100....0.771
stratified..0.4100......0.4100
clustered structure............
total..1.1571.1580.4100..2.537
SGn/a............
single-layered....0.7700.770..1.450
multi-layered....1.4500.770..2.240
stratified............
clustered structure............
total....2.2401.450..3.631
SHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SOn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
SZn/a............
single-layered..0.4100..0.4100..0.770
multi-layered..0.41001.449....1.844
stratified............
clustered structure............
total..0.7701.4490.4100..2.536
TGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
TIn/a............
single-layered1.1581.4501.450....3.930
multi-layered..2.2411.844....4.030
stratified0.7710.7710.4100....1.844
clustered structure............
total1.8444.3293.631....9.719
URn/a............
single-layered..0.31000.7700.3100..1.349
multi-layered..1.0570.3100....1.349
stratified..0.31000.3100....0.770
clustered structure............
total..1.7441.3490.3100..3.330
VDn/a............
single-layered....1.1580.4100..1.550
multi-layered..0.41001.944....2.340
stratified....0.4100....0.4100
clustered structure............
total..0.41003.4330.4100..4.230
VSn/a..0.771......0.771
single-layered1.7446.2232.735....10.617
multi-layered1.0583.4313.133..0.31007.920
stratified0.7713.8301.450....5.824
clustered structure............
total3.43114.1157.221..0.310025.011
ZGn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
ZHn/a............
single-layered............
multi-layered............
stratified............
clustered structure............
total............
Switzerlandn/a..1.4501.450....2.835
single-layered3.83013.51616.0153.6320.77137.79
multi-layered2.83511.61719.0134.7280.310038.49
stratified1.8458.7205.9240.41000.410017.114
clustered structure0.7711.158......1.845
total9.11936.31042.498.6201.45097.86

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169785/156168

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
rockfall SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter3.6326.1247.6218.2202.14110.31837.99
outside perimeter51.58102.1463.3664.5566.1691.04438.42
total55.18108.2470.9572.7568.25101.34476.32

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169786/156169

NFI4b

forest area: altitudinal vegetation zone · stand structure · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonestand structure %± %± %± %± %± %±
upper subalpinen/a............
single-layered......38.911.557.118.742.39.7
multi-layered......38.911.514.313.230.69.0
stratified......16.78.828.617.119.37.7
clustered structure....100.0.5.65.4..7.85.3
total....100.0.100.0.100.0.100.0.
lower subalpinen/a......5.12.5..3.91.9
single-layered50.335.4..50.017.736.75.433.212.237.54.7
multi-layered....25.015.330.35.246.812.931.74.6
stratified....25.015.325.44.919.910.324.04.2
clustered structure49.735.4....2.51.8..2.91.7
total100.0...100.0.100.0.100.0.100.0.
upper montanen/a....10.06.72.61.8..3.31.6
single-layered16.715.2..35.010.738.55.547.212.138.04.4
multi-layered66.719.3..35.010.746.15.641.111.944.64.5
stratified16.715.2..20.09.012.83.811.77.814.13.2
clustered structure............
total100.0...100.0.100.0.100.0.100.0.
lower montanen/a............
single-layered40.021.9..50.020.438.513.5..41.710.1
multi-layered40.021.9..50.020.461.513.5..54.010.2
stratified20.017.9........4.34.2
clustered structure............
total100.0...100.0.100.0...100.0.
colline/submontanen/a............
single-layered....100.0.....50.325.0
multi-layered......48.635.3..24.221.2
stratified......51.435.3..25.522.0
clustered structure............
total....100.0.100.0...100.0.
totaln/a....5.43.73.21.3..2.91.0
single-layered30.812.8..43.28.237.43.543.67.938.72.9
multi-layered46.213.8..32.47.740.03.638.57.839.02.9
stratified15.410.0..16.26.117.92.817.96.117.62.3
clustered structure7.67.3..2.72.71.60.9..1.80.8
total100.0...100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169787/156170

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region %± %± %±
Western Jura9.03.091.03.0100.0.
Eastern Jura7.16.992.96.8100.0.
Western Plateau..100.0.100.0.
Central Plateau4.54.595.54.5100.0.
Eastern Plateau..100.0.100.0.
Western Pre-Alps1.51.598.51.5100.0.
Central Pre-Alps3.11.596.91.5100.0.
Eastern Pre-Alps2.71.697.31.6100.0.
Northwestern Alps11.63.288.43.2100.0.
Central Alps27.07.373.07.3100.0.
Northeastern Alps15.54.884.54.8100.0.
Southwestern Alps11.32.288.72.2100.0.
Southeastern Alps3.11.296.91.2100.0.
Southern Alps10.21.889.81.8100.0.
Switzerland8.00.792.00.7100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169788/156171

NFI4b

forest area: altitudinal vegetation zone · stand structure · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonestand structure1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpinen/a............
single-layered......2.4381.4503.830
multi-layered......2.4380.41002.835
stratified......1.0580.7711.745
clustered structure....0.41000.3100..0.771
total....0.41006.2232.5389.119
lower subalpinen/a......1.450..1.450
single-layered0.4100..1.45010.0181.84513.616
multi-layered....0.7718.3202.53811.517
stratified....0.7716.9221.1588.720
clustered structure0.4100....0.771..1.158
total0.771..2.93527.3115.32536.310
upper montanen/a....0.7710.771..1.450
single-layered0.4100..2.53810.4182.83516.115
multi-layered1.550..2.53812.4162.53818.913
stratified0.4100..1.4503.5310.7716.024
clustered structure............
total2.241..7.22227.0116.02442.49
lower montanen/a............
single-layered0.771..1.1581.745..3.532
multi-layered0.771..1.1582.835..4.628
stratified0.4100........0.4100
clustered structure............
total1.845..2.2414.528..8.520
colline/submontanen/a............
single-layered....0.771....0.771
multi-layered......0.3100..0.3100
stratified......0.4100..0.4100
clustered structure............
total....0.7710.771..1.450
totaln/a....0.7712.141..2.835
single-layered1.550..5.82524.5126.02437.89
multi-layered2.241..4.32926.3115.32538.19
stratified0.771..2.24111.8172.53817.214
clustered structure0.4100..0.41001.058..1.845
total4.727..13.31665.7713.81597.66

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169789/156172

NFI2

forest area: rockfall SilvaProtect, modelled and assigned · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid:
state 1993/95
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region1000 ha± %1000 ha± %1000 ha± %
Western Jura2.93528.91031.810
Eastern Jura0.41005.1265.525
Western Plateau..4.9284.928
Central Plateau0.31006.5216.820
Eastern Plateau..6.1246.124
Western Pre-Alps0.410024.8925.29
Central Pre-Alps1.45044.8746.37
Eastern Pre-Alps1.15738.2739.37
Northwestern Alps4.32832.5836.87
Central Alps3.4309.31712.713
Northeastern Alps3.23217.61120.810
Southwestern Alps8.22064.5572.75
Southeastern Alps2.14166.1668.25
Southern Alps10.31891.04101.34
Switzerland38.09440.22478.22

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169790/156173
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