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NFI1

forest area: slope (20% classes) · protection forest region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
slope (20% classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%4.8145.7133.4170.4501.2291.82317.38
21-40 %50.045100.82565.33169.03271.632105.826462.512
over 100%1.3285.3145.9135.3134.31516.7738.85
total56.14111.9274.6374.7377.03124.32518.61

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169599/155982

NFI1

forest area: slope (20% classes) · economic region
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
slope (20% classes)
to 20%21-40 %over 100%total
economic region %± %± %± %±
Western Jura3.71.192.68.83.71.1100.0.
Eastern Jura2.12.195.821.42.12.1100.0.
Western Plateau28.76.571.318.6..100.0.
Central Plateau11.33.187.714.90.90.9100.0.
Eastern Plateau17.55.082.517.7..100.0.
Western Pre-Alps6.41.589.69.63.91.2100.0.
Central Pre-Alps7.51.288.47.34.20.9100.0.
Eastern Pre-Alps7.21.390.78.22.10.7100.0.
Northwestern Alps0.80.593.08.76.21.3100.0.
Central Alps1.91.182.412.015.72.9100.0.
Northeastern Alps1.80.985.710.312.42.2100.0.
Southwestern Alps0.50.392.45.77.10.9100.0.
Southeastern Alps1.60.492.95.75.60.8100.0.
Southern Alps1.40.385.14.413.41.0100.0.
Switzerland3.30.289.22.27.50.4100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169600/155983

NFI3

forest area: altitudinal vegetation zone · degree of cover of assured regeneration · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpineless than 1%......0.3100..0.3100
1-4%....0.41001.7450.41002.438
5-9%......1.4501.1582.438
10-25%......2.8350.7713.532
26-50%........0.41000.4100
51-75%............
76-100%............
total....0.41006.2232.5389.119
lower subalpineless than 1%....0.41002.438..2.835
1-4%0.4100..0.7715.2260.7717.022
5-9%....0.7715.5251.8458.021
10-25%0.4100..1.1589.7191.45012.617
26-50%......4.1291.1585.226
51-75%............
76-100%........0.41000.4100
total0.771..2.93527.0115.32535.910
upper montaneless than 1%1.158..0.41001.7450.41003.532
1-4%....0.7714.5281.8457.022
5-9%....2.9354.8271.1588.820
10-25%0.4100..1.4509.0191.15811.917
26-50%0.771..1.1584.1291.4507.422
51-75%....0.41002.1410.41002.835
76-100%............
total2.241..6.82326.3116.02441.39
lower montaneless than 1%............
1-4%1.158..0.7711.450..3.233
5-9%....0.41001.058..1.450
10-25%0.771..0.41001.058..2.141
26-50%....0.41000.771..1.158
51-75%....0.41000.3100..0.771
76-100%............
total1.845..2.2414.528..8.520
colline/submontaneless than 1%............
1-4%............
5-9%............
10-25%....0.41000.3100..0.771
26-50%....0.4100....0.4100
51-75%............
76-100%............
total....0.7710.3100..1.158
totalless than 1%1.158..0.7714.5280.41006.723
1-4%1.550..2.53812.8162.83519.613
5-9%....4.03012.8163.93020.713
10-25%1.550..3.23322.8123.23330.710
26-50%0.771..1.8459.0192.83514.315
51-75%....0.7712.4380.41003.532
76-100%........0.41000.4100
total4.727..13.01664.3713.81595.96

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169601/155984

NFI1

forest area: slope (20% classes) · economic region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
slope (20% classes)
to 20%21-40 %over 100%total
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura1.13028.0601.13030.25
Eastern Jura0.11004.81560.11005.014
Western Plateau1.5263.6209..5.114
Central Plateau1.2298.9980.110010.29
Eastern Plateau1.0324.7194..5.713
Western Pre-Alps1.82324.7541.13027.64
Central Pre-Alps3.61642.4412.02248.04
Eastern Pre-Alps2.71934.4470.83537.94
Northwestern Alps0.35833.8442.22136.34
Central Alps0.35812.9862.52015.76
Northeastern Alps0.45018.4672.71921.55
Southwestern Alps0.45069.0325.31374.73
Southeastern Alps1.22971.6324.31577.03
Southern Alps1.823105.82616.77124.32
Switzerland17.38463.01238.85519.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169602/155985

NFI3

forest area: altitudinal vegetation zone · degree of cover of assured regeneration · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover of assured regeneration %± %± %± %± %± %± %±
upper subalpineless than 1%........12.511.7..3.93.8
1-4%..100.0...30.014.525.015.314.313.226.98.7
5-9%......40.015.5..42.918.726.88.7
10-25%......30.014.562.517.128.617.138.59.5
26-50%..........14.313.23.93.8
51-75%..............
76-100%..............
total..100.0...100.0.100.0.100.0.100.0.
lower subalpineless than 1%....23.011.75.03.516.78.8..7.82.6
1-4%50.335.435.712.815.310.012.25.127.810.613.38.819.53.9
5-9%..21.411.015.710.231.77.3..33.212.222.34.1
10-25%49.735.435.712.823.011.741.47.733.311.126.911.534.94.7
26-50%..7.16.923.011.79.74.622.29.819.910.314.53.5
51-75%..............
76-100%..........6.66.41.01.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
upper montaneless than 1%50.020.42.72.716.78.8..10.57.05.95.78.52.6
1-4%..18.96.416.78.89.56.415.88.429.611.117.03.5
5-9%..29.77.516.78.823.89.315.88.417.69.221.23.8
10-25%16.715.227.07.333.311.138.110.631.610.717.69.228.74.2
26-50%33.319.318.96.45.65.414.37.621.19.423.510.317.93.5
51-75%..2.72.711.17.414.37.65.35.15.95.76.72.3
76-100%..............
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
lower montaneless than 1%..............
1-4%60.021.950.025.040.015.5......37.69.9
5-9%..25.021.720.012.7..20.017.9..16.67.6
10-25%40.021.9..20.012.7..40.021.9..25.08.8
26-50%..25.021.7....40.021.9..12.66.8
51-75%....20.012.7......8.25.5
76-100%..............
total100.0.100.0.100.0...100.0...100.0.
colline/submontaneless than 1%..............
1-4%..............
5-9%..............
10-25%..50.135.4..100.0.....66.127.4
26-50%..49.935.4........33.927.4
51-75%..............
76-100%..............
total..100.0...100.0.....100.0.
totalless than 1%23.111.71.71.714.65.52.82.012.04.62.62.56.91.5
1-4%30.812.825.95.821.96.513.74.020.05.720.66.520.52.4
5-9%..25.95.817.25.930.15.48.03.828.17.221.52.5
10-25%30.712.827.65.926.86.939.75.738.06.923.16.832.02.8
26-50%15.410.017.25.09.74.69.63.420.05.720.56.515.02.2
51-75%..1.71.79.74.64.12.32.02.02.62.53.61.1
76-100%..........2.62.50.40.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169603/155986

NFI1

forest area: number of types natural hazards SilvaProtect · biogeographical region
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect %± %± %± %± %± %± %±
no natural hazard..............
one natural hazard81.82.094.01.474.61.054.91.970.41.870.91.372.20.6
two natural hazards14.21.86.01.418.80.929.11.723.41.722.51.220.60.6
three natural hazards3.61.0..5.10.512.71.34.80.95.80.75.80.3
four natural hazards0.30.3..1.50.33.20.71.30.50.90.31.40.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169604/155987

NFI1

forest area: number of types natural hazards SilvaProtect · biogeographical region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
number of types natural hazards SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
no natural hazard..............
one natural hazard29.7526.56149.2236.5443.4489.83375.11
two natural hazards5.2141.72437.6519.4714.4828.55106.83
three natural hazards1.328..10.2108.5103.0187.31130.36
four natural hazards0.1100..3.0182.1210.8351.1307.212
total36.3528.26200.1266.5361.63126.72519.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169605/155988

NFI3

forest area: altitudinal vegetation zone · degree of cover of assured regeneration · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zonedegree of cover of assured regeneration1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
upper subalpineless than 1%........0.4100..0.4100
1-4%..0.4100..1.0580.7710.41002.438
5-9%......1.450..1.1582.438
10-25%......1.0581.8450.7713.532
26-50%..........0.41000.4100
51-75%..............
76-100%..............
total..0.4100..3.4312.8352.5389.119
lower subalpineless than 1%....1.0580.7711.158..2.835
1-4%0.41001.8450.7711.7441.8450.7717.022
5-9%..1.1580.7714.527..1.8458.021
10-25%0.41001.8451.0585.8242.1411.45012.616
26-50%..0.41001.0581.4501.4501.1585.226
51-75%..............
76-100%..........0.41000.4100
total0.7715.0264.52714.1156.3235.32536.010
upper montaneless than 1%1.1580.41001.058..0.7710.41003.532
1-4%..2.5381.0580.7711.1581.8457.122
5-9%..4.0301.0581.7441.1581.1588.820
10-25%0.41003.6312.1412.7352.1411.15811.917
26-50%0.7712.5380.31001.0581.4501.4507.422
51-75%..0.41000.7711.0580.41000.41002.835
76-100%..............
total2.14113.3166.2237.2216.7226.02441.69
lower montaneless than 1%..............
1-4%1.1580.7711.450......3.233
5-9%..0.41000.771..0.4100..1.450
10-25%0.771..0.771..0.771..2.141
26-50%..0.4100....0.771..1.158
51-75%....0.771......0.771
76-100%..............
total1.8451.4503.431..1.845..8.420
colline/submontaneless than 1%..............
1-4%..............
5-9%..............
10-25%..0.4100..0.3100....0.771
26-50%..0.4100........0.4100
51-75%..............
76-100%..............
total..0.771..0.3100....1.158
totalless than 1%1.1580.41002.1410.7712.1410.41006.723
1-4%1.4505.4263.1333.4313.5312.83519.713
5-9%..5.4262.4387.5211.4503.93020.713
10-25%1.4505.8253.8309.9186.7223.23330.810
26-50%0.7713.6311.4502.4373.5312.83514.416
51-75%..0.41001.4501.0580.41000.41003.532
76-100%..........0.41000.4100
total4.72820.91314.21525.01117.61313.81596.26

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169606/155989

NFI1

forest area: number of types natural hazards SilvaProtect · canton
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
number of types natural hazards SilvaProtect
no natural hazardone natural hazardtwo natural hazardsthree natural hazardsfour natural hazardstotal
canton %± %± %± %± %± %±
AG..100.0.......100.0.
AI..86.86.29.95.53.33.3..100.0.
AR..83.86.616.26.6....100.0.
BE..78.91.415.71.34.30.71.10.4100.0.
BL/BS..82.46.317.66.5....100.0.
FR..91.02.27.22.01.81.0..100.0.
GE............
GL..56.85.130.64.78.42.94.22.1100.0.
GR..71.31.422.81.34.50.71.40.4100.0.
JU..94.32.25.72.2....100.0.
LU..86.54.013.54.0....100.0.
NE..65.97.329.37.14.93.4..100.0.
NW..64.27.423.96.69.54.62.42.4100.0.
OW..81.04.014.73.63.21.81.11.0100.0.
SG..80.12.215.52.03.31.01.20.6100.0.
SH..100.0.......100.0.
SO..73.57.620.66.92.92.92.92.9100.0.
SZ..78.93.516.73.22.21.22.21.2100.0.
TG..85.26.614.86.8....100.0.
TI..72.01.421.51.36.00.70.50.2100.0.
UR..39.64.939.64.912.93.37.92.7100.0.
VD..70.53.119.42.710.12.0..100.0.
VS..55.51.829.41.612.31.22.90.6100.0.
ZG..96.01.04.03.9....100.0.
ZH..100.0.......100.0.
Switzerland..72.20.620.60.65.80.31.40.2100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169607/155990

NFI3

forest area: slope (20% classes) · altitude (400 m classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
slope (20% classes)
to 20%21-40 %over 100%total
cantonaltitude (400 m classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AGabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
AIabove 1800 m........
1401-1800 m........
1001-1400 m..0.62000.31001.054
601-1000 m........
to 600 m........
total..0.62000.31001.054
ARabove 1800 m........
1401-1800 m........
1001-1400 m..0.3100..0.3100
601-1000 m........
to 600 m........
total..0.3100..0.3100
BEabove 1800 m..0.3100..0.3100
1401-1800 m..3.12020.31003.431
1001-1400 m..8.5211..8.520
601-1000 m..2.1228..2.141
to 600 m........
total..14.11860.310014.415
BL/BSabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
FRabove 1800 m........
1401-1800 m........
1001-1400 m..1.1170..1.157
601-1000 m........
to 600 m........
total..1.1170..1.157
GEabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
GLabove 1800 m........
1401-1800 m..1.9149..1.944
1001-1400 m..1.257..1.257
601-1000 m..0.82000.41001.257
to 600 m........
total..3.8870.41004.228
GRabove 1800 m..5.273..5.225
1401-1800 m..9.81170.310010.118
1001-1400 m..5.61460.7716.323
601-1000 m........
to 600 m........
total..20.6731.05821.612
JUabove 1800 m........
1401-1800 m........
1001-1400 m..0.8200..0.870
601-1000 m........
to 600 m........
total..0.8200..0.870
LUabove 1800 m........
1401-1800 m........
1001-1400 m..0.6200..0.670
601-1000 m........
to 600 m........
total..0.6200..0.670
NEabove 1800 m........
1401-1800 m........
1001-1400 m..0.3100..0.3100
601-1000 m..0.6200..0.670
to 600 m........
total..1.0170..1.057
NWabove 1800 m........
1401-1800 m....0.41000.4100
1001-1400 m..0.4100..0.4100
601-1000 m..0.4100..0.4100
to 600 m........
total..0.8690.41001.255
OWabove 1800 m........
1401-1800 m..0.41000.41000.770
1001-1400 m..0.770..0.770
601-1000 m..0.4100..0.4100
to 600 m........
total..1.51570.41001.943
SGabove 1800 m........
1401-1800 m........
1001-1400 m..2.22500.41002.537
601-1000 m..1.1300..1.157
to 600 m........
total..3.31850.41003.631
SHabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
SOabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
SZabove 1800 m........
1401-1800 m........
1001-1400 m..1.81270.41002.240
601-1000 m........
to 600 m........
total..1.81270.41002.240
TGabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
TIabove 1800 m..1.8371..1.844
1401-1800 m..5.71460.41006.124
1001-1400 m..1.41580.41001.844
601-1000 m........
to 600 m........
total..9.02130.7719.719
URabove 1800 m........
1401-1800 m..1.3140..1.349
1001-1400 m..1.31570.31001.744
601-1000 m....0.31000.3100
to 600 m........
total..2.61000.7703.330
VDabove 1800 m........
1401-1800 m..1.1171..1.158
1001-1400 m..2.71070.41003.035
601-1000 m........
to 600 m........
total..3.81940.41004.230
VSabove 1800 m..5.8145..5.824
1401-1800 m..12.0901.05813.015
1001-1400 m..5.11591.0586.223
601-1000 m........
to 600 m........
total..23.0672.14125.011
ZGabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
ZHabove 1800 m........
1401-1800 m........
1001-1400 m........
601-1000 m........
to 600 m........
total........
Switzerlandabove 1800 m..13.2200..13.216
1401-1800 m..35.3562.83538.29
1001-1400 m..34.81293.83038.69
601-1000 m..5.31400.7716.024
to 600 m........
total..88.7937.42296.16

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169608/155991

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · biogeographical region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter18.6722.96181.0258.2348.34117.32446.21
outside perimeter17.875.41419.178.31113.389.31073.14
total36.3528.26200.1266.5361.63126.72519.41

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169609/155992

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · canton
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
canton %± %± %±
AG..100.0.100.0.
AI90.15.59.95.5100.0.
AR77.47.622.67.6100.0.
BE84.61.315.41.3100.0.
BL/BS52.98.547.18.5100.0.
FR90.42.39.62.3100.0.
GE......
GL80.04.120.04.1100.0.
GR82.91.217.11.2100.0.
JU67.04.533.04.6100.0.
LU90.73.49.33.3100.0.
NE29.37.170.77.0100.0.
NW88.15.011.95.0100.0.
OW86.33.513.73.5100.0.
SG93.21.46.81.4100.0.
SH16.715.383.315.3100.0.
SO52.98.547.18.6100.0.
SZ86.92.913.12.9100.0.
TG100.0...100.0.
TI92.90.87.10.8100.0.
UR88.13.211.93.2100.0.
VD86.22.313.82.3100.0.
VS88.11.211.91.2100.0.
ZG96.01.04.03.9100.0.
ZH66.715.733.315.7100.0.
Switzerland85.90.514.10.5100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169610/155993

NFI3

forest area: slope (20% classes) · altitude (400 m classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
slope (20% classes)altitude (400 m classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%above 1800 m............
1401-1800 m............
1001-1400 m............
601-1000 m............
to 600 m............
total............
21-40 %above 1800 m....0.410010.01162.832013.2200
1401-1800 m0.4100..1.117126.6627.113835.256
1001-1400 m2.9191..7.212421.4723.210834.8128
601-1000 m1.5158..2.21211.7128..5.3140
to 600 m............
total4.7163..10.810159.84213.119288.592
over 100%above 1800 m............
1401-1800 m....1.1581.4500.41002.835
1001-1400 m....1.1582.4380.41003.930
601-1000 m......0.771..0.771
to 600 m............
total....2.2414.5280.7717.422
totalabove 1800 m....0.410010.0182.83513.216
1401-1800 m0.4100..2.24128.0117.52138.09
1001-1400 m2.935..8.32023.8123.63138.69
601-1000 m1.550..2.2412.438..6.024
to 600 m............
total4.727..13.01664.3713.81595.96

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169611/155994

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · canton
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
canton1000 ha± %1000 ha± %1000 ha± %
AG..1.6251.625
AI2.6160.3572.915
AR2.4180.7373.115
BE67.4312.3979.73
BL/BS1.9231.7243.616
FR15.171.62516.86
GE......
GL7.8101.9229.78
GR82.5317.0799.52
JU7.1113.51610.68
LU6.4110.7387.011
NE1.2282.9184.115
NW3.9130.5444.512
OW8.391.3279.68
SG31.142.32133.44
SH0.11000.5440.640
SO1.8231.6243.416
SZ12.771.92314.77
TG2.618..2.618
TI94.827.311102.02
UR9.091.22810.28
VD19.273.11822.36
VS65.838.91074.73
ZG2.4170.11002.516
ZH0.6410.3580.933
Switzerland446.7173.24519.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #169612/155995

NFI3

forest area: slope (20% classes) · altitude (400 m classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
slope (20% classes)altitude (400 m classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
to 20%above 1800 m..............
1401-1800 m..............
1001-1400 m..............
601-1000 m..............
to 600 m..............
total..............
21-40 %above 1800 m..0.4100..5.81454.2822.832013.3200
1401-1800 m0.41004.31873.19812.0908.41207.113835.356
1001-1400 m2.919112.6907.21705.11593.91903.210834.9128
601-1000 m1.41582.22281.7241......5.3140
to 600 m..............
total4.716419.57312.112023.06716.58013.119288.893
over 100%above 1800 m..............
1401-1800 m..1.158..1.0580.41000.41002.835
1001-1400 m..0.41001.4501.0580.7710.41003.830
601-1000 m....0.771......0.771
to 600 m..............
total..1.4502.1412.1411.1580.7717.322
totalabove 1800 m..0.4100..5.8244.2282.83513.316
1401-1800 m0.41005.4263.13313.0158.8197.52138.29
1001-1400 m2.93513.0168.6196.2234.6273.63138.89
601-1000 m1.4502.2412.438......6.024
to 600 m..............
total4.72820.91314.21525.01117.61313.81596.26

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169613/155996

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · production region
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigned %± %± %± %± %± %±
inside perimeter52.32.775.92.991.70.885.30.792.90.785.90.5
outside perimeter47.72.724.12.98.30.814.70.77.10.714.10.5
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 #169614/155997

NFI3

forest area: stand stability · regeneration cover · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %±
critical< 1%..............
1-9%....2.71.64.52.52.42.44.93.43.31.1
10-25%....0.90.9......0.40.4
26-50%....1.81.31.51.5..2.42.41.50.7
51-75%....0.90.9..2.42.4..0.70.5
76-100%........2.42.4..0.40.4
total....6.42.36.02.97.14.07.34.16.21.5
less stable< 1%....0.90.91.51.52.42.4..1.10.6
1-9%....19.13.816.24.59.54.512.25.114.92.2
10-25%7.77.4..18.23.714.74.311.95.07.34.114.22.1
26-50%7.77.4..8.22.65.92.94.83.37.44.17.01.5
51-75%....1.81.32.92.0..2.42.41.80.8
76-100%....0.90.91.51.5....0.70.5
total15.410.0..49.14.842.66.028.67.029.37.139.73.0
stable< 1%23.011.7..1.81.3..2.42.4..2.20.9
1-9%23.211.7..14.53.420.64.921.46.322.06.518.62.4
10-25%15.410.0..11.83.123.55.121.46.321.96.517.82.3
26-50%15.410.0..9.12.75.92.914.35.49.74.69.51.8
51-75%7.77.4..5.52.21.51.54.83.37.34.14.81.3
76-100%....1.81.3....2.42.41.10.6
total84.610.0..44.54.751.46.164.37.463.47.554.03.0
total< 1%23.011.7..2.71.61.51.54.83.3..3.31.1
1-9%23.211.7..36.44.641.26.033.37.339.07.636.82.9
10-25%23.011.7..30.94.438.25.933.37.329.27.132.42.8
26-50%23.011.7..19.13.713.24.119.06.119.66.217.92.3
51-75%7.77.4..8.22.64.42.57.14.09.74.67.31.6
76-100%....2.71.61.51.52.42.42.42.42.20.9
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 #169615/155998

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · production region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter18.4716.08104.12191.52115.52445.51
outside perimeter16.885.1149.41033.058.81073.14
total35.2521.17113.52224.52124.32518.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169616/155999

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · protection forest region
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigned %± %± %± %± %± %± %±
inside perimeter61.32.191.00.989.21.188.11.279.91.492.90.785.90.5
outside perimeter38.72.19.00.910.81.111.91.220.11.47.10.714.10.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169617/156000

NFI3

forest area: stand stability · regeneration cover · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilityregeneration cover1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical< 1%..............
1-9%....1.1581.0580.41000.7713.233
10-25%....0.4100......0.4100
26-50%....0.7710.3100..0.41001.450
51-75%....0.4100..0.4100..0.771
76-100%........0.4100..0.4100
total....2.5381.4501.1581.1586.024
less stable< 1%....0.41000.31000.4100..1.058
1-9%....7.5223.8301.4501.84514.415
10-25%0.4100..7.1223.4311.8441.15813.716
26-50%0.4100..3.2331.4500.7711.1586.723
51-75%....0.7710.771..0.41001.745
76-100%....0.41000.3100....0.771
total0.771..19.2139.9184.2284.32938.39
stable< 1%1.158..0.771..0.4100..2.141
1-9%1.158..5.7254.8263.2333.23317.914
10-25%0.771..4.6285.5243.2333.23317.214
26-50%0.771..3.5311.4502.1411.4509.220
51-75%0.4100..2.1410.31000.7711.1584.628
76-100%....0.771....0.41001.158
total4.030..17.41412.0169.5199.31952.18
total< 1%1.158..1.1580.31000.771..3.233
1-9%1.158..14.2169.6184.9265.72535.510
10-25%1.158..12.1178.9194.9264.32931.310
26-50%1.158..7.4223.1332.8352.93517.314
51-75%0.4100..3.2331.0581.1581.4507.122
76-100%....1.1580.31000.41000.41002.141
total4.727..39.0923.31114.81514.61596.46

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169618/156001

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · protection forest region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigned1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter34.45101.8266.5365.8361.63115.52445.61
outside perimeter21.7710.0108.1118.91015.588.81073.04
total56.14111.9274.6374.7377.03124.32518.61

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169619/156002

NFI3

forest area: stand stability · regeneration cover · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
restriction: avalanches SilvaProtect, modelled and assigned = inside perimeter
grid:
state 2004/06
canton
AGAIARBEBL/BSFRGEGLGRJULUNENWOWSGSHSOSZTGTIURVDVSZGZHSwitzerland
stand stabilityregeneration cover %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %± %±
critical< 1%....................................................
1-9%......2.42.3........1.61.6......33.327.8............7.45.0..9.18.74.22.4....3.41.1
10-25%..............9.28.8..................................0.40.4
26-50%......2.42.3........1.61.6......................10.09.6..1.41.4....1.40.7
51-75%................1.61.6........20.018.1......................0.80.5
76-100%................1.61.6................................0.40.4
total......4.73.3......9.28.86.43.1......33.327.820.018.1..........7.45.010.09.69.18.75.62.7....6.31.5
less stable< 1%..............9.28.81.61.6..........................1.41.4....1.10.6
1-9%......26.16.8..33.327.3..17.511.312.94.3........40.022.1..........3.73.630.014.618.211.615.14.2....14.92.1
10-25%......16.65.7......9.28.811.34.0........40.022.120.012.7........7.45.030.014.627.313.416.44.3....14.22.1
26-50%......2.42.3..33.327.3....6.43.150.035.5....33.327.8........16.715.3..11.26.110.09.518.211.65.52.7....7.11.6
51-75%................1.61.6................16.715.3..3.73.6....2.71.9....1.80.8
76-100%..........................................9.18.71.41.4....0.80.5
total......45.17.7..66.727.3..35.814.533.86.050.035.5....33.327.880.018.020.012.7....33.319.3..26.08.570.014.672.713.442.45.8....39.93.0
stable< 1%..33.328.0..4.73.3......9.28.81.61.6........................9.18.7......2.20.9
1-9%..66.727.9100.0.16.85.8......9.28.817.84.9..50.035.5......20.012.7....16.715.3..25.98.410.09.59.18.721.94.8....18.52.3
10-25%......16.85.8......9.28.822.65.350.035.550.035.5......20.012.7....33.319.3..18.57.5....21.94.8....17.82.3
26-50%......9.54.5..33.327.3..18.311.811.34.0....66.727.3....10.09.5........14.86.8....6.83.0....9.51.8
51-75%......2.42.3........6.43.1....33.327.4....30.014.5....16.715.3..3.73.610.09.5..1.41.4....4.71.3
76-100%..............9.28.8........33.327.8............3.73.6..........1.20.7
total..100.0.100.0.50.27.7..33.327.3..55.015.159.76.250.035.5100.0.100.0.33.327.8..80.012.6....66.719.3..66.69.120.012.718.211.652.05.8....53.83.0
total< 1%..33.328.0..4.73.3......18.311.83.22.2........................9.18.71.41.4....3.31.1
1-9%..66.727.9100.0.45.37.7..33.327.3..26.713.332.35.9..50.035.5..33.327.840.022.120.012.7....16.715.3..37.09.340.015.636.414.541.15.8....36.72.9
10-25%......33.47.3......27.513.633.86.050.035.550.035.5....40.022.140.015.5....33.319.3..25.98.430.014.627.313.438.35.7....32.42.8
26-50%......14.25.4..66.727.3..18.311.819.35.050.035.5..66.727.333.327.8..10.09.5....16.715.3..26.08.520.012.718.211.613.74.0....18.02.3
51-75%......2.42.3........9.73.8....33.327.4..20.018.130.014.5....33.319.3..7.45.010.09.5..4.12.3....7.31.6
76-100%..............9.28.81.61.6......33.327.8............3.73.6..9.18.71.41.4....2.30.9
total..100.0.100.0.100.0...100.0...100.0.100.0.100.0.100.0.100.0.100.0.100.0.100.0.....100.0...100.0.100.0.100.0.100.0.....100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 04.11.2014 #169620/156003

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · economic region
unit: %
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region %± %± %±
Western Jura54.42.945.62.9100.0.
Eastern Jura39.67.060.47.0100.0.
Western Plateau81.85.518.25.5100.0.
Central Plateau71.74.428.34.4100.0.
Eastern Plateau78.95.421.15.4100.0.
Western Pre-Alps89.61.810.41.8100.0.
Central Pre-Alps92.91.27.11.2100.0.
Eastern Pre-Alps91.81.48.21.4100.0.
Northwestern Alps89.61.610.41.6100.0.
Central Alps85.02.915.02.9100.0.
Northeastern Alps87.62.212.42.2100.0.
Southwestern Alps88.11.211.91.2100.0.
Southeastern Alps79.91.420.11.4100.0.
Southern Alps92.90.77.10.7100.0.
Switzerland85.90.514.10.5100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 04.11.2014 #169621/156004

NFI1

forest area: processes in channels SilvaProtect, modelled and assigned · economic region
unit: 1000 ha
unit of evaluation: forest
restriction: protection forest perimeter SilvaProtect = inside perimeter
grid: terrestrial grid NFI1
state 1983/85
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic region1000 ha± %1000 ha± %1000 ha± %
Western Jura16.4713.8830.25
Eastern Jura2.0233.0185.014
Western Plateau4.2150.9335.114
Central Plateau7.3112.91810.29
Eastern Plateau4.5151.2295.713
Western Pre-Alps24.752.91827.64
Central Pre-Alps44.643.41748.04
Eastern Pre-Alps34.843.11837.94
Northwestern Alps32.543.81636.34
Central Alps13.472.42015.76
Northeastern Alps18.862.71921.55
Southwestern Alps65.838.91074.73
Southeastern Alps61.6315.5877.03
Southern Alps115.528.810124.32
Switzerland446.0173.14519.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #169622/156005
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