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NFI3

forest area: slope (20% classes) · protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
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%206.9221.7912.3113.1238.8146.017258.72
21-40 %224.936186.424126.329110.731147.327147.326942.911
over 100%1.83213.31112.7129.71310.61229.3777.55
total433.61221.41151.31123.62166.61182.611279.00

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157985/144364

NFI3

forest area: slope (20% classes) · economic region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
slope (20% classes)
to 20%21-40 %over 100%total
economic region %± %± %± %±
Western Jura29.21.569.94.60.80.3100.0.
Eastern Jura36.13.163.58.10.40.4100.0.
Western Plateau68.82.830.94.90.40.4100.0.
Central Plateau60.32.439.44.80.20.2100.0.
Eastern Plateau60.62.039.43.7..100.0.
Western Pre-Alps11.22.084.29.74.61.3100.0.
Central Pre-Alps13.21.481.86.45.00.9100.0.
Eastern Pre-Alps12.91.685.17.32.10.7100.0.
Northwestern Alps3.91.087.78.38.51.4100.0.
Central Alps3.61.381.511.214.92.6100.0.
Northeastern Alps3.51.282.310.414.12.3100.0.
Southwestern Alps2.50.689.65.97.91.0100.0.
Southeastern Alps5.30.788.45.16.30.8100.0.
Southern Alps3.30.680.74.916.01.1100.0.
Switzerland20.20.473.81.76.00.3100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 07.11.2014 #157986/144365

NFI3

forest area: slope (20% classes) · economic region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
slope (20% classes)
to 20%21-40 %over 100%total
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura45.35108.3461.338154.91
Eastern Jura17.1930.1930.210047.42
Western Plateau34.5515.5890.210050.22
Central Plateau42.3427.61480.210070.12
Eastern Plateau67.2443.7104..110.91
Western Pre-Alps5.31840.0562.22947.52
Central Pre-Alps13.71185.0405.218103.92
Eastern Pre-Alps9.91365.1461.63376.52
Northwestern Alps2.72561.3405.91770.02
Central Alps1.33729.5625.41836.23
Northeastern Alps1.43531.8585.41738.63
Southwestern Alps3.123110.7319.713123.62
Southeastern Alps8.814147.32710.612166.61
Southern Alps6.017147.32629.37182.61
Switzerland258.52943.31077.151279.00

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157987/144366

NFI3

forest area: protection forest perimeter SilvaProtect · biogeographical region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect %± %± %± %± %± %± %±
inside perimeter20.11.211.80.854.11.064.41.948.11.771.91.343.20.5
outside of perimeter79.91.288.20.845.91.035.61.951.91.728.11.356.80.5
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 #158003/144382

NFI3

forest area: protection forest perimeter SilvaProtect · biogeographical region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter39.5630.47209.1270.7367.84134.62552.01
outside of perimeter156.62227.81177.8239.1673.2452.65727.11
total196.11258.21386.91109.72141.01187.211279.10

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158004/144383

NFI3

forest area: protection forest perimeter SilvaProtect · canton
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
canton %± %± %±
AG3.41.196.61.1100.0.
AI56.78.343.38.5100.0.
AR35.86.864.26.8100.0.
BE47.01.653.01.6100.0.
BL/BS20.54.079.54.0100.0.
FR37.33.162.73.1100.0.
GE..100.0.100.0.
GL49.54.550.54.5100.0.
GR53.81.446.21.4100.0.
JU32.83.467.23.4100.0.
LU17.02.483.02.4100.0.
NE15.92.984.12.9100.0.
NW53.47.746.67.7100.0.
OW47.94.752.14.7100.0.
SG57.92.742.12.7100.0.
SH4.72.795.32.7100.0.
SO9.62.290.42.2100.0.
SZ48.93.851.13.8100.0.
TG12.62.987.42.9100.0.
TI72.81.527.21.5100.0.
UR47.44.452.64.4100.0.
VD22.11.777.91.7100.0.
VS64.01.836.01.8100.0.
ZG44.18.555.98.6100.0.
ZH3.01.097.01.0100.0.
Switzerland43.10.556.90.5100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 07.11.2014 #158005/144384

NFI3

forest area: protection forest perimeter SilvaProtect · canton
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
canton1000 ha± %1000 ha± %1000 ha± %
AG1.73347.3249.02
AI3.0162.3225.47
AR2.9195.3128.26
BE85.3496.23181.51
BL/BS4.22016.5620.74
FR16.3927.4643.72
GE..3.493.49
GL10.51010.71021.23
GR108.1392.73200.81
JU11.01122.6633.63
LU7.11434.9442.13
NE4.71824.7529.43
NW4.5163.9178.45
OW9.71010.61020.33
SG34.5525.1759.62
SH0.65711.9512.44
SO3.12329.6432.83
SZ15.2815.9831.13
TG2.72418.6521.34
TI108.1240.36148.51
UR11.61012.8924.44
VD22.7879.73102.42
VS79.1344.45123.62
ZG2.6203.4176.07
ZH1.53548.1349.62
Switzerland550.91728.311279.10

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158006/144385

NFI3

forest area: protection forest perimeter SilvaProtect · production region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect %± %± %± %± %± %±
inside perimeter18.91.29.30.852.11.455.31.072.31.343.10.5
outside of perimeter81.11.290.70.847.91.444.71.027.71.356.90.5
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 #158007/144386

NFI3

forest area: protection forest perimeter SilvaProtect · production region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter38.3621.69118.63240.42132.02550.91
outside of perimeter164.02209.71109.33194.2250.65727.71
total202.31231.31227.91434.61182.611278.60

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158008/144387

NFI3

forest area: protection forest perimeter SilvaProtect · protection forest region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect %± %± %± %± %± %± %±
inside perimeter13.80.753.11.451.71.764.01.850.51.672.31.343.10.5
outside of perimeter86.20.746.91.448.31.736.01.849.51.627.71.356.90.5
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 #158009/144388

NFI3

forest area: protection forest perimeter SilvaProtect · protection forest region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtect1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter59.75117.6378.3379.1384.13132.02550.71
outside of perimeter373.91103.8373.1444.4582.5350.65728.31
total433.61221.41151.31123.62166.61182.611279.00

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158010/144389

NFI3

forest area: protection forest perimeter SilvaProtect · economic region
unit: %
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic region %± %± %±
Western Jura20.91.479.11.4100.0.
Eastern Jura11.92.188.12.1100.0.
Western Plateau10.01.890.01.8100.0.
Central Plateau14.21.785.81.7100.0.
Eastern Plateau5.70.994.30.9100.0.
Western Pre-Alps59.53.140.53.1100.0.
Central Pre-Alps48.62.151.42.1100.0.
Eastern Pre-Alps52.22.447.82.4100.0.
Northwestern Alps55.52.544.52.5100.0.
Central Alps46.83.653.23.6100.0.
Northeastern Alps58.53.341.53.3100.0.
Southwestern Alps64.01.836.01.8100.0.
Southeastern Alps50.51.649.51.6100.0.
Southern Alps72.31.327.71.3100.0.
Switzerland43.10.556.90.5100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 07.11.2014 #158011/144390

NFI3

forest area: protection forest perimeter SilvaProtect · economic region
unit: 1000 ha
unit of evaluation: forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic region1000 ha± %1000 ha± %1000 ha± %
Western Jura32.47122.52154.91
Eastern Jura5.61841.8347.42
Western Plateau5.01845.1350.22
Central Plateau9.91260.2370.12
Eastern Plateau6.316104.62110.91
Western Pre-Alps28.3619.2847.52
Central Pre-Alps50.5553.44103.92
Eastern Pre-Alps39.9536.6576.52
Northwestern Alps38.9531.1670.02
Central Alps17.0819.3836.23
Northeastern Alps22.6616.0838.63
Southwestern Alps79.1344.45123.62
Southeastern Alps84.1382.53166.61
Southern Alps132.0250.65182.61
Switzerland551.71727.311279.00

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158012/144391

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago48.83.464.13.742.11.518.82.029.32.411.31.232.10.8
11-20 years ago15.72.518.03.019.41.212.31.622.82.27.21.015.70.7
21-30 years ago15.72.511.42.510.70.99.81.513.61.810.31.211.30.6
31-40 years ago5.51.63.01.38.60.89.31.57.01.37.41.07.70.5
41-50 years ago4.11.41.20.86.20.711.51.64.71.17.91.06.70.5
over 50 years ago10.12.02.41.212.91.038.32.422.62.255.91.926.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterless than 10 years ago56.21.776.01.240.01.719.53.025.12.414.12.552.80.8
11-20 years ago19.61.413.61.017.61.311.22.417.22.110.82.216.00.6
21-30 years ago14.31.26.40.713.01.214.42.616.52.114.02.511.40.5
31-40 years ago4.30.71.90.48.61.09.42.28.21.58.12.05.20.4
41-50 years ago2.00.51.00.33.90.78.92.14.41.26.01.72.80.3
over 50 years ago3.60.61.10.316.91.336.63.628.52.547.03.611.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago54.71.574.61.141.21.119.01.627.31.711.91.143.60.6
11-20 years ago18.81.214.10.918.60.911.91.320.21.58.00.915.90.4
21-30 years ago14.61.17.00.711.70.711.21.315.01.411.11.111.40.4
31-40 years ago4.50.62.00.48.60.69.31.27.61.07.50.96.30.3
41-50 years ago2.40.51.00.35.20.510.71.34.60.87.50.94.50.3
over 50 years ago4.90.71.30.314.60.837.82.025.41.754.01.718.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158013/144392

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago19.2919.1983.4412.81118.4913.711166.73
11-20 years ago6.2175.41838.568.31414.4108.81481.64
21-30 years ago6.2173.42321.296.6168.61412.51258.55
31-40 years ago2.2290.94517.1106.3164.4209.01439.87
41-50 years ago1.6330.47112.3127.8143.0249.71334.87
over 50 years ago4.0210.75025.5826.1714.21168.04138.53
total39.3629.97198.2267.9363.04121.72519.91
outside of perimeterless than 10 years ago87.54172.4260.556.01713.9114.819344.92
11-20 years ago30.6730.8726.683.4229.5133.622104.54
21-30 years ago22.3914.51119.794.4199.1144.71974.75
31-40 years ago6.7164.32013.1122.9244.5192.72534.27
41-50 years ago3.1242.3285.9172.7252.4272.02918.510
over 50 years ago5.6182.52725.6811.21215.71015.91076.65
total155.72226.71151.3330.7755.1533.87653.41
totalless than 10 years ago106.73191.52143.9318.8932.3618.59511.61
11-20 years ago36.7636.1765.1511.81223.8812.412186.03
21-30 years ago28.4717.91040.9611.11217.7917.210133.23
31-40 years ago8.9145.21830.279.2138.91411.71274.15
41-50 years ago4.7192.72618.21010.6125.41811.71253.36
over 50 years ago9.6133.22351.1637.3629.9783.93215.12
total195.01256.61349.4198.72118.12155.521173.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158014/144393

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGless than 10 years ago66.715.780.02.479.52.3
11-20 years ago..10.61.910.21.9
21-30 years ago..4.71.34.51.3
31-40 years ago11.110.52.71.03.01.1
41-50 years ago..1.60.81.50.8
over 50 years ago22.213.90.40.41.10.7
total100.0.100.0.100.0.
AIless than 10 years ago45.011.132.812.239.78.3
11-20 years ago25.09.76.66.417.06.4
21-30 years ago10.06.832.812.219.96.8
31-40 years ago15.08.113.18.814.25.9
41-50 years ago......
over 50 years ago5.04.914.79.69.25.1
total100.0.100.0.100.0.
ARless than 10 years ago50.011.840.38.743.87.0
11-20 years ago22.29.924.87.623.96.0
21-30 years ago22.29.919.57.120.55.8
31-40 years ago..6.24.34.02.8
41-50 years ago5.65.43.13.14.02.8
over 50 years ago..6.24.34.02.8
total100.0.100.0.100.0.
BEless than 10 years ago47.82.358.72.253.31.6
11-20 years ago19.21.815.11.617.11.2
21-30 years ago12.41.59.41.310.81.0
31-40 years ago6.81.25.91.16.40.8
41-50 years ago5.81.11.40.53.50.6
over 50 years ago8.11.39.61.38.90.9
total100.0.100.0.100.0.
BL/BSless than 10 years ago47.610.958.35.456.14.8
11-20 years ago19.08.619.64.419.53.9
21-30 years ago23.89.313.63.815.73.6
31-40 years ago4.84.72.31.62.81.6
41-50 years ago4.84.73.72.13.91.9
over 50 years ago..2.51.72.01.4
total100.0.100.0.100.0.
FRless than 10 years ago44.35.367.23.958.43.2
11-20 years ago15.93.914.63.015.12.4
21-30 years ago13.63.76.32.09.11.9
31-40 years ago12.53.51.41.05.61.5
41-50 years ago6.82.72.81.44.31.3
over 50 years ago6.82.77.72.27.41.7
total100.0.100.0.100.0.
GEless than 10 years ago..56.615.556.615.5
11-20 years ago..24.513.224.513.2
21-30 years ago......
31-40 years ago......
41-50 years ago..9.49.49.49.4
over 50 years ago..9.49.49.49.4
total..100.0.100.0.
GLless than 10 years ago39.66.732.87.536.65.0
11-20 years ago17.05.219.96.318.24.0
21-30 years ago13.24.712.45.212.93.5
31-40 years ago5.73.27.54.26.42.5
41-50 years ago9.44.05.03.47.52.7
over 50 years ago15.25.022.46.618.34.0
total100.0.100.0.100.0.
GRless than 10 years ago24.31.825.32.224.71.4
11-20 years ago19.31.616.81.918.21.2
21-30 years ago14.11.415.51.814.71.1
31-40 years ago7.41.18.31.47.80.9
41-50 years ago4.80.94.41.04.60.7
over 50 years ago30.11.929.72.330.01.5
total100.0.100.0.100.0.
JUless than 10 years ago48.46.357.14.454.33.6
11-20 years ago14.54.515.93.315.42.6
21-30 years ago17.74.917.53.417.62.8
31-40 years ago8.13.54.81.95.91.7
41-50 years ago1.61.61.61.11.60.9
over 50 years ago9.73.83.21.65.31.6
total100.0.100.0.100.0.
LUless than 10 years ago46.47.857.73.555.83.2
11-20 years ago17.05.916.62.616.72.4
21-30 years ago17.05.915.12.515.42.3
31-40 years ago9.74.65.51.66.21.6
41-50 years ago2.42.41.00.71.20.7
over 50 years ago7.34.14.11.44.61.4
total100.0.100.0.100.0.
NEless than 10 years ago68.09.373.23.672.43.3
11-20 years ago20.08.016.03.116.62.9
21-30 years ago..9.42.58.02.1
31-40 years ago..0.70.70.60.6
41-50 years ago......
over 50 years ago12.06.50.70.72.51.2
total100.0.100.0.100.0.
NWless than 10 years ago52.410.422.29.939.17.6
11-20 years ago17.07.838.911.626.67.0
21-30 years ago8.76.011.17.59.84.7
31-40 years ago......
41-50 years ago4.44.3..2.42.4
over 50 years ago17.58.027.810.622.06.5
total100.0.100.0.100.0.
OWless than 10 years ago52.97.049.16.650.94.8
11-20 years ago11.84.58.83.810.22.9
21-30 years ago..12.34.46.52.4
31-40 years ago5.93.37.03.46.52.4
41-50 years ago3.92.75.33.04.62.0
over 50 years ago25.56.117.55.121.34.0
total100.0.100.0.100.0.
SGless than 10 years ago40.33.757.14.447.32.8
11-20 years ago21.53.115.63.219.12.2
21-30 years ago12.22.410.22.711.31.8
31-40 years ago7.72.03.11.55.81.3
41-50 years ago3.31.32.31.32.91.0
over 50 years ago14.92.611.72.813.61.9
total100.0.100.0.100.0.
SHless than 10 years ago100.0.59.06.260.96.0
11-20 years ago..26.25.625.05.4
21-30 years ago..8.23.57.83.4
31-40 years ago......
41-50 years ago..4.92.84.72.7
over 50 years ago..1.61.61.61.6
total100.0.100.0.100.0.
SOless than 10 years ago55.611.759.73.859.33.6
11-20 years ago5.65.421.33.119.82.9
21-30 years ago11.17.413.12.612.92.5
31-40 years ago5.65.42.41.22.71.2
41-50 years ago11.17.41.81.02.71.2
over 50 years ago11.17.41.81.02.71.2
total100.0.100.0.100.0.
SZless than 10 years ago49.35.741.25.445.13.9
11-20 years ago18.24.415.23.916.62.9
21-30 years ago11.73.710.63.411.12.5
31-40 years ago5.22.58.33.06.82.0
41-50 years ago7.83.05.92.66.82.0
over 50 years ago7.83.118.84.213.62.7
total100.0.100.0.100.0.
TGless than 10 years ago56.312.476.54.073.93.9
11-20 years ago31.311.614.43.316.53.3
21-30 years ago12.58.38.22.68.72.5
31-40 years ago......
41-50 years ago......
over 50 years ago..1.01.00.90.8
total100.0.100.0.100.0.
TIless than 10 years ago12.31.415.33.012.91.3
11-20 years ago6.41.011.72.77.51.0
21-30 years ago8.41.215.23.09.81.1
31-40 years ago7.51.18.22.37.61.0
41-50 years ago8.81.26.12.08.21.0
over 50 years ago56.62.143.54.153.91.9
total100.0.100.0.100.0.
URless than 10 years ago38.56.839.17.638.75.1
11-20 years ago21.15.79.84.716.13.8
21-30 years ago..4.93.42.21.5
31-40 years ago19.35.512.15.116.13.8
41-50 years ago5.83.24.93.45.42.4
over 50 years ago15.45.029.27.121.54.3
total100.0.100.0.100.0.
VDless than 10 years ago38.84.450.62.448.02.1
11-20 years ago23.23.819.61.920.41.7
21-30 years ago10.72.812.81.612.41.4
31-40 years ago6.62.37.01.26.91.1
41-50 years ago5.82.13.00.83.60.8
over 50 years ago14.93.27.01.28.71.2
total100.0.100.0.100.0.
VSless than 10 years ago20.21.922.32.920.91.6
11-20 years ago13.01.610.82.212.31.3
21-30 years ago9.91.414.62.511.41.2
31-40 years ago9.41.410.22.19.71.2
41-50 years ago11.71.58.72.010.71.2
over 50 years ago35.92.333.43.335.11.9
total100.0.100.0.100.0.
ZGless than 10 years ago80.010.057.911.367.67.9
11-20 years ago6.76.515.88.511.85.6
21-30 years ago13.38.921.19.417.76.6
31-40 years ago......
41-50 years ago......
over 50 years ago..5.35.22.92.9
total100.0.100.0.100.0.
ZHless than 10 years ago75.015.374.02.774.12.7
11-20 years ago..15.92.315.42.2
21-30 years ago12.511.76.61.56.81.5
31-40 years ago..2.71.02.61.0
41-50 years ago12.511.70.80.51.10.6
over 50 years ago......
total100.0.100.0.100.0.
Switzerlandless than 10 years ago32.10.852.90.843.70.6
11-20 years ago15.70.716.00.615.80.4
21-30 years ago11.20.611.30.511.30.4
31-40 years ago7.70.55.20.46.30.3
41-50 years ago6.70.52.90.34.60.3
over 50 years ago26.70.811.70.518.30.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158015/144394

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
AGless than 10 years ago1.14037.8439.04
11-20 years ago..5.0185.018
21-30 years ago..2.2282.228
31-40 years ago0.21001.3371.535
41-50 years ago..0.7500.750
over 50 years ago0.4710.21000.658
total1.73347.3249.02
AIless than 10 years ago1.4300.8422.122
11-20 years ago0.8420.21000.938
21-30 years ago0.3700.8421.135
31-40 years ago0.5560.3700.842
41-50 years ago......
over 50 years ago0.21000.3710.558
total3.0162.3225.47
ARless than 10 years ago1.5312.1243.616
11-20 years ago0.7491.3332.026
21-30 years ago0.7491.0401.730
31-40 years ago..0.3700.370
41-50 years ago0.21000.21000.370
over 50 years ago..0.3700.370
total2.9195.3128.26
BEless than 10 years ago39.8651.2591.03
11-20 years ago16.01013.21129.17
21-30 years ago10.3138.21418.59
31-40 years ago5.7175.21810.812
41-50 years ago4.8191.2386.017
over 50 years ago6.8168.41415.110
total83.4487.33170.61
BL/BSless than 10 years ago2.0309.51111.59
11-20 years ago0.8493.2244.021
21-30 years ago1.0442.2293.223
31-40 years ago0.21000.4710.658
41-50 years ago0.21000.6570.849
over 50 years ago..0.4700.470
total4.22016.3620.54
FRless than 10 years ago7.11517.6824.76
11-20 years ago2.6263.8216.416
21-30 years ago2.2281.6333.821
31-40 years ago2.0300.4712.427
41-50 years ago1.1400.7501.831
over 50 years ago1.1402.0303.123
total16.1926.1642.23
GEless than 10 years ago..1.8301.830
11-20 years ago..0.8570.857
21-30 years ago......
31-40 years ago......
41-50 years ago..0.31000.3100
over 50 years ago..0.31000.3100
total..3.1133.113
GLless than 10 years ago3.6202.3275.915
11-20 years ago1.5321.4342.923
21-30 years ago1.2370.9442.128
31-40 years ago0.5570.5571.040
41-50 years ago0.9440.3701.237
over 50 years ago1.4351.5322.923
total9.1116.91416.06
GRless than 10 years ago24.7817.9942.66
11-20 years ago19.6911.91231.57
21-30 years ago14.41111.01225.38
31-40 years ago7.5155.91713.411
41-50 years ago4.9193.1238.014
over 50 years ago30.7721.0951.75
total101.7370.74172.41
JUless than 10 years ago5.31712.81018.17
11-20 years ago1.6333.6215.217
21-30 years ago2.0293.9205.916
31-40 years ago0.9441.1402.030
41-50 years ago0.21000.4710.557
over 50 years ago1.1400.7501.831
total11.01122.4633.43
LUless than 10 years ago3.22219.6722.86
11-20 years ago1.2375.6166.815
21-30 years ago1.2375.1176.315
31-40 years ago0.7501.9302.525
41-50 years ago0.21000.3710.558
over 50 years ago0.5581.4351.930
total7.01433.9440.93
NEless than 10 years ago3.02318.1621.25
11-20 years ago0.9443.9204.818
21-30 years ago..2.3272.327
31-40 years ago..0.21000.2100
41-50 years ago......
over 50 years ago0.5570.21000.750
total4.51924.7529.23
NWless than 10 years ago2.4250.8483.120
11-20 years ago0.8491.4352.127
21-30 years ago0.4700.4700.848
31-40 years ago......
41-50 years ago0.2100..0.2100
over 50 years ago0.8481.0431.830
total4.5163.5198.06
OWless than 10 years ago4.9175.0179.910
11-20 years ago1.1400.9442.029
21-30 years ago..1.3371.337
31-40 years ago0.5570.7491.337
41-50 years ago0.4700.5570.944
over 50 years ago2.3261.8314.119
total9.21110.21019.44
SGless than 10 years ago12.81112.81125.67
11-20 years ago6.8153.52210.312
21-30 years ago3.9212.3276.116
31-40 years ago2.5260.7503.223
41-50 years ago1.1410.5581.633
over 50 years ago4.7192.6257.415
total31.7622.4754.13
SHless than 10 years ago0.6577.0127.611
11-20 years ago..3.1223.122
21-30 years ago..1.0431.043
31-40 years ago......
41-50 years ago..0.6570.657
over 50 years ago..0.21000.2100
total0.65711.9512.44
SOless than 10 years ago1.73117.7719.47
11-20 years ago0.21006.3156.515
21-30 years ago0.3713.9204.219
31-40 years ago0.21000.7500.944
41-50 years ago0.3710.5570.944
over 50 years ago0.3710.5570.944
total3.12329.6432.83
SZless than 10 years ago7.0156.41613.39
11-20 years ago2.6262.4274.918
21-30 years ago1.6331.6333.322
31-40 years ago0.7501.3372.029
41-50 years ago1.1400.9442.029
over 50 years ago1.1402.9244.020
total14.1915.5829.64
TGless than 10 years ago1.53214.2715.76
11-20 years ago0.8442.7243.520
21-30 years ago0.3701.5331.929
31-40 years ago......
41-50 years ago......
over 50 years ago..0.21000.2100
total2.72418.6521.34
TIless than 10 years ago11.8123.92115.710
11-20 years ago6.2173.0249.113
21-30 years ago8.1143.92112.012
31-40 years ago7.2152.1299.313
41-50 years ago8.5141.63310.013
over 50 years ago54.6511.11265.74
total96.4325.58121.92
URless than 10 years ago3.7213.0246.715
11-20 years ago2.0290.7492.825
21-30 years ago..0.4700.470
31-40 years ago1.9310.9442.825
41-50 years ago0.6570.4700.944
over 50 years ago1.5342.2283.721
total9.7117.61417.46
VDless than 10 years ago8.51439.3647.85
11-20 years ago5.11815.21020.39
21-30 years ago2.42710.01312.311
31-40 years ago1.5355.4186.916
41-50 years ago1.3382.4283.622
over 50 years ago3.3235.4188.714
total21.9877.7399.72
VSless than 10 years ago15.3107.91423.28
11-20 years ago9.9133.82113.711
21-30 years ago7.5155.11812.611
31-40 years ago7.2153.62210.712
41-50 years ago8.9133.12311.911
over 50 years ago27.3711.81239.16
total76.1335.26111.32
ZGless than 10 years ago2.1241.9264.113
11-20 years ago0.21000.5560.748
21-30 years ago0.4700.7491.139
31-40 years ago......
41-50 years ago......
over 50 years ago..0.21000.2100
total2.6203.4176.07
ZHless than 10 years ago1.14035.6436.74
11-20 years ago..7.6157.615
21-30 years ago0.21003.2243.423
31-40 years ago..1.3371.337
41-50 years ago0.21000.4710.658
over 50 years ago......
total1.53548.1349.62
Switzerlandless than 10 years ago166.33346.92513.11
11-20 years ago81.24104.94186.13
21-30 years ago58.3574.45132.73
31-40 years ago39.8734.1773.95
41-50 years ago34.8718.81053.56
over 50 years ago138.5376.75215.22
total518.81655.711174.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #158016/144395

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimeterless than 10 years ago50.23.560.04.551.12.027.61.211.21.232.10.8
11-20 years ago15.82.518.33.518.31.518.51.17.21.015.70.7
21-30 years ago14.42.410.82.810.61.211.80.99.91.111.20.6
31-40 years ago5.71.63.31.66.51.09.10.87.41.07.70.5
41-50 years ago4.31.42.51.44.30.87.90.78.31.16.70.5
over 50 years ago9.62.05.02.09.21.125.11.256.01.926.70.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterless than 10 years ago57.31.775.41.349.12.126.81.513.72.552.80.8
11-20 years ago19.01.314.11.016.71.616.21.39.72.216.00.6
21-30 years ago14.11.26.50.713.01.413.81.214.12.611.40.5
31-40 years ago4.20.71.90.47.31.18.91.08.52.05.20.4
41-50 years ago2.00.50.90.32.60.75.80.86.31.82.80.3
over 50 years ago3.30.61.20.311.31.328.41.647.63.711.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago56.01.574.01.250.21.427.31.011.71.143.60.6
11-20 years ago18.41.214.51.017.51.117.60.87.80.915.80.4
21-30 years ago14.11.06.90.711.70.912.60.710.81.111.40.4
31-40 years ago4.50.62.00.46.90.79.00.67.60.96.30.3
41-50 years ago2.40.51.10.33.50.57.10.67.80.94.50.3
over 50 years ago4.50.61.60.310.20.926.41.054.21.718.30.4
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158017/144396

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago19.2912.81259.0562.0513.411166.33
11-20 years ago6.0173.92121.1941.568.61481.24
21-30 years ago5.5182.32812.21226.5811.81258.35
31-40 years ago2.2290.7507.51520.598.81439.77
41-50 years ago1.6330.5585.01917.7109.81334.87
over 50 years ago3.7221.14110.61356.4566.84138.63
total38.1621.49115.43224.62119.32518.91
outside of perimeterless than 10 years ago93.43157.3250.7539.264.420345.02
11-20 years ago31.0729.4717.21023.783.123104.44
21-30 years ago23.0813.51113.41120.294.61974.75
31-40 years ago6.9163.9217.51513.1112.72534.27
41-50 years ago3.3232.0302.7268.5142.02918.510
over 50 years ago5.5182.52711.61241.5615.41076.55
total163.02208.61103.23146.2332.37653.31
totalless than 10 years ago112.63170.12109.73101.1417.89511.31
11-20 years ago37.0633.3738.3665.2511.812185.73
21-30 years ago28.5715.91025.6846.8616.410133.13
31-40 years ago9.1144.61915.11133.5711.51273.95
41-50 years ago4.9192.5277.71526.2811.91253.26
over 50 years ago9.1143.62222.2998.0482.23215.12
total201.21230.01218.61370.81151.621172.21

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158018/144397

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimeterless than 10 years ago53.82.745.62.042.82.420.21.929.32.111.21.232.00.8
11-20 years ago16.72.118.81.620.02.013.01.621.81.97.21.015.70.7
21-30 years ago13.11.910.91.211.51.69.91.413.61.69.91.111.30.6
31-40 years ago4.91.27.91.18.31.49.41.47.61.27.41.07.70.5
41-50 years ago3.61.05.90.95.11.111.71.54.41.08.31.16.70.5
over 50 years ago7.91.510.91.212.21.635.92.323.32.056.01.926.70.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterless than 10 years ago67.61.043.02.243.02.722.32.927.12.313.72.552.90.8
11-20 years ago16.20.817.31.716.42.010.82.218.32.09.72.216.00.6
21-30 years ago9.80.712.01.412.31.814.62.516.11.914.12.611.40.5
31-40 years ago2.90.48.51.26.81.410.22.18.21.48.52.05.20.4
41-50 years ago1.40.33.60.83.81.08.72.04.11.06.31.82.80.3
over 50 years ago2.10.315.61.617.72.133.43.326.22.347.63.711.70.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalless than 10 years ago65.71.044.41.542.91.820.91.628.31.611.71.143.60.6
11-20 years ago16.30.818.21.118.41.412.31.320.21.47.80.915.80.4
21-30 years ago10.20.611.40.911.91.211.41.214.71.210.81.111.30.4
31-40 years ago3.20.48.20.87.61.09.71.27.80.97.60.96.30.3
41-50 years ago1.70.34.80.64.50.810.71.24.30.77.80.94.50.3
over 50 years ago2.90.313.01.014.71.335.11.924.61.554.21.718.30.4
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 #158019/144398

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago31.9752.0530.4715.31023.1813.411166.23
11-20 years ago9.91321.5914.2119.91317.2108.61481.34
21-30 years ago7.81512.5128.2147.51510.71211.81258.45
31-40 years ago2.9259.0145.9177.2156.0178.81439.77
41-50 years ago2.2296.7163.6228.9133.5229.81334.77
over 50 years ago4.72012.5128.71427.3718.4966.84138.43
total59.35114.2371.1476.0378.83119.32518.71
outside of perimeterless than 10 years ago251.2239.4625.287.91417.3104.420345.42
11-20 years ago60.4515.9109.6133.82111.7123.123104.54
21-30 years ago36.4711.0137.2155.11810.3134.61974.65
31-40 years ago10.8137.8154.0213.6225.2182.72534.17
41-50 years ago5.2183.2232.2283.1232.6262.02918.510
over 50 years ago7.91514.31110.41311.81216.81015.41076.45
total371.9191.5458.6535.2664.0432.37653.51
totalless than 10 years ago283.2291.4455.7523.2840.5617.89511.71
11-20 years ago70.3537.4623.8813.71128.9711.812185.83
21-30 years ago44.1623.5815.41012.61121.0916.410133.03
31-40 years ago13.71116.8109.91310.71211.21211.51273.85
41-50 years ago7.4169.9135.91711.9116.11711.91253.26
over 50 years ago12.61226.7819.1939.1635.2682.23214.82
total431.21205.71129.72111.32142.82151.621172.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158020/144399

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juraless than 10 years ago48.33.755.21.953.71.7
11-20 years ago16.12.719.11.518.51.3
21-30 years ago15.02.715.41.415.31.2
31-40 years ago5.61.74.90.85.00.7
41-50 years ago3.91.41.30.41.90.5
over 50 years ago11.12.34.10.85.60.8
total100.0.100.0.100.0.
Eastern Juraless than 10 years ago62.19.064.13.263.83.0
11-20 years ago13.86.418.72.718.12.5
21-30 years ago10.35.79.82.09.91.9
31-40 years ago6.94.72.31.02.81.1
41-50 years ago6.94.74.21.44.51.3
over 50 years ago..0.90.70.80.6
total100.0.100.0.100.0.
Western Plateauless than 10 years ago70.38.868.53.068.72.9
11-20 years ago14.86.913.42.213.62.1
21-30 years ago3.73.68.81.88.31.7
31-40 years ago3.73.62.91.13.01.1
41-50 years ago3.73.62.91.13.01.1
over 50 years ago3.73.63.41.23.41.1
total100.0.100.0.100.0.
Central Plateauless than 10 years ago51.76.675.72.372.42.2
11-20 years ago20.75.315.81.916.51.8
21-30 years ago17.25.06.21.37.81.3
31-40 years ago3.42.41.10.61.50.6
41-50 years ago1.71.7..0.20.2
over 50 years ago5.22.91.10.61.70.6
total100.0.100.0.100.0.
Eastern Plateauless than 10 years ago65.78.078.01.777.31.7
11-20 years ago17.16.413.31.413.61.4
21-30 years ago5.73.95.71.05.70.9
31-40 years ago2.92.81.90.62.00.6
41-50 years ago2.92.80.70.30.80.4
over 50 years ago5.73.90.30.20.60.3
total100.0.100.0.100.0.
Western Pre-Alpsless than 10 years ago41.44.045.95.143.23.2
11-20 years ago17.13.122.84.319.32.5
21-30 years ago13.82.85.22.310.51.9
31-40 years ago9.92.410.43.110.11.9
41-50 years ago7.22.14.22.06.11.5
over 50 years ago10.52.511.43.310.92.0
total100.0.100.0.100.0.
Central Pre-Alpsless than 10 years ago60.43.050.23.055.32.1
11-20 years ago17.22.314.02.115.61.5
21-30 years ago7.01.514.72.110.91.3
31-40 years ago4.41.27.21.55.81.0
41-50 years ago2.91.02.20.92.50.7
over 50 years ago8.11.611.81.910.01.3
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 10 years ago46.13.449.23.547.62.4
11-20 years ago20.52.717.42.719.01.9
21-30 years ago12.82.314.42.513.61.7
31-40 years ago6.81.76.01.76.41.2
41-50 years ago4.11.32.51.13.30.9
over 50 years ago9.62.010.52.210.01.5
total100.0.100.0.100.0.
Northwestern Alpsless than 10 years ago29.03.225.73.827.72.4
11-20 years ago22.22.920.43.521.52.2
21-30 years ago14.02.411.42.813.01.8
31-40 years ago11.12.29.92.610.61.7
41-50 years ago8.72.06.12.17.71.4
over 50 years ago15.02.526.53.819.52.2
total100.0.100.0.100.0.
Central Alpsless than 10 years ago42.85.737.55.740.24.1
11-20 years ago18.64.513.94.116.33.1
21-30 years ago2.71.97.03.04.81.8
31-40 years ago16.04.28.33.312.32.7
41-50 years ago6.62.95.62.76.12.0
over 50 years ago13.43.927.65.320.33.3
total100.0.100.0.100.0.
Northeastern Alpsless than 10 years ago37.14.530.55.834.83.6
11-20 years ago19.83.715.84.618.42.9
21-30 years ago14.63.311.13.913.42.5
31-40 years ago6.02.27.93.46.71.9
41-50 years ago6.02.26.33.16.11.8
over 50 years ago16.43.428.45.720.63.0
total100.0.100.0.100.0.
Southwestern Alpsless than 10 years ago20.21.922.32.920.91.6
11-20 years ago13.01.610.82.212.31.3
21-30 years ago9.91.414.62.511.41.2
31-40 years ago9.41.410.22.19.71.2
41-50 years ago11.71.58.72.010.71.2
over 50 years ago35.92.333.43.335.11.9
total100.0.100.0.100.0.
Southeastern Alpsless than 10 years ago29.32.127.12.328.31.6
11-20 years ago21.81.918.32.020.21.4
21-30 years ago13.61.616.11.914.71.2
31-40 years ago7.61.28.21.47.80.9
41-50 years ago4.41.04.11.04.30.7
over 50 years ago23.32.026.22.324.61.5
total100.0.100.0.100.0.
Southern Alpsless than 10 years ago11.21.213.72.511.71.1
11-20 years ago7.21.09.72.27.80.9
21-30 years ago9.91.114.12.610.81.1
31-40 years ago7.41.08.52.07.60.9
41-50 years ago8.31.16.31.87.80.9
over 50 years ago56.01.947.63.754.21.7
total100.0.100.0.100.0.
Switzerlandless than 10 years ago32.10.852.80.843.70.6
11-20 years ago15.70.716.00.615.80.4
21-30 years ago11.20.611.40.511.30.4
31-40 years ago7.70.55.20.46.30.3
41-50 years ago6.70.52.90.34.60.3
over 50 years ago26.60.811.70.518.30.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158021/144400

NFI3

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
Western Juraless than 10 years ago15.61067.2482.73
11-20 years ago5.21823.3828.57
21-30 years ago4.81918.8923.68
31-40 years ago1.8315.9177.715
41-50 years ago1.3381.6332.925
over 50 years ago3.6225.0198.614
total32.27121.82154.01
Eastern Juraless than 10 years ago3.52326.7630.25
11-20 years ago0.8507.8158.514
21-30 years ago0.6584.1214.719
31-40 years ago0.4710.9451.338
41-50 years ago0.4711.8332.130
over 50 years ago..0.4710.471
total5.61841.6347.22
Western Plateauless than 10 years ago3.52230.4533.95
11-20 years ago0.7505.9176.716
21-30 years ago0.21003.9214.121
31-40 years ago0.21001.3371.535
41-50 years ago0.21001.3371.535
over 50 years ago0.21001.5351.733
total5.01844.4349.43
Central Plateauless than 10 years ago5.11845.3450.44
11-20 years ago2.0299.51311.511
21-30 years ago1.7313.7215.417
31-40 years ago0.3710.7501.041
41-50 years ago0.2100..0.2100
over 50 years ago0.5580.7501.238
total9.81259.9369.62
Eastern Plateauless than 10 years ago4.22181.6385.73
11-20 years ago1.14114.01115.010
21-30 years ago0.4716.0176.317
31-40 years ago0.21002.0302.229
41-50 years ago0.21000.7500.945
over 50 years ago0.4710.4710.750
total6.316104.62110.91
Western Pre-Alpsless than 10 years ago11.6118.11419.68
11-20 years ago4.8194.0218.813
21-30 years ago3.9210.9444.819
31-40 years ago2.8251.8314.619
41-50 years ago2.0300.7502.825
over 50 years ago2.9242.0305.018
total27.9617.6845.53
Central Pre-Alpsless than 10 years ago29.7725.2854.84
11-20 years ago8.5147.01615.510
21-30 years ago3.4237.41510.812
31-40 years ago2.2293.6225.817
41-50 years ago1.4351.1412.526
over 50 years ago4.0215.9179.913
total49.1550.1599.22
Eastern Pre-Alpsless than 10 years ago17.8917.4935.26
11-20 years ago7.9146.21614.110
21-30 years ago4.9185.11810.013
31-40 years ago2.6252.1294.719
41-50 years ago1.6330.9452.526
over 50 years ago3.7213.7217.415
total38.5535.4673.92
Northwestern Alpsless than 10 years ago10.8126.11716.99
11-20 years ago8.3144.91913.111
21-30 years ago5.2182.7257.914
31-40 years ago4.1202.3276.516
41-50 years ago3.2231.4354.719
over 50 years ago5.6176.31611.911
total37.2523.7861.03
Central Alpsless than 10 years ago6.0165.11811.111
11-20 years ago2.6261.9314.519
21-30 years ago0.4710.9441.337
31-40 years ago2.3281.1403.423
41-50 years ago0.9440.8501.733
over 50 years ago1.9313.7225.617
total14.1913.51027.65
Northeastern Alpsless than 10 years ago7.3143.32210.611
11-20 years ago3.9201.7315.616
21-30 years ago2.9231.2374.119
31-40 years ago1.2370.8442.028
41-50 years ago1.2370.7501.930
over 50 years ago3.2223.0236.315
total19.7710.71130.44
Southwestern Alpsless than 10 years ago15.3107.91423.28
11-20 years ago9.9133.82113.711
21-30 years ago7.5155.11812.611
31-40 years ago7.2153.62210.712
41-50 years ago8.9133.12311.911
over 50 years ago27.3711.81239.16
total76.0335.26111.32
Southeastern Alpsless than 10 years ago23.1817.31040.56
11-20 years ago17.21011.71228.97
21-30 years ago10.71210.31321.09
31-40 years ago6.0175.21811.212
41-50 years ago3.5222.6266.117
over 50 years ago18.4916.81035.26
total78.8364.04142.82
Southern Alpsless than 10 years ago13.4114.42017.89
11-20 years ago8.6143.12311.812
21-30 years ago11.8124.61916.410
31-40 years ago8.8142.72511.512
41-50 years ago9.8132.02911.912
over 50 years ago66.8415.41082.23
total119.3232.37151.62
Switzerlandless than 10 years ago166.83345.82512.71
11-20 years ago81.44104.64186.13
21-30 years ago58.3574.75133.13
31-40 years ago39.9734.2774.25
41-50 years ago34.8718.71053.56
over 50 years ago138.4376.55215.02
total519.81654.711174.41

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #158022/144401

NFI3

forest area: protection forest perimeter SilvaProtect · degree of mixture · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI3
state 2004/06
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of mixture %± %± %± %± %± %± %±
inside perimetern/a..1.20.84.80.61.80.73.10.90.70.32.70.3
pure conifer forest12.42.215.62.843.51.574.92.286.11.832.71.846.30.9
mixed conifer forest28.13.133.53.722.11.28.81.44.51.16.91.015.80.7
mixed broadleaf forest24.92.922.23.214.31.14.81.11.70.77.51.011.20.6
pure broadleaf forest34.63.227.53.515.31.19.81.54.71.152.21.924.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimetern/a0.90.33.30.53.90.71.71.01.30.60.50.52.50.3
pure conifer forest27.51.525.91.252.71.768.93.581.32.243.33.640.10.8
mixed conifer forest25.71.523.21.218.41.39.42.26.41.46.51.719.80.7
mixed broadleaf forest22.41.416.21.010.31.05.01.62.90.94.61.514.10.6
pure broadleaf forest23.41.431.41.314.71.215.02.78.21.545.13.623.60.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.70.33.10.54.40.51.80.52.20.60.70.32.60.2
pure conifer forest24.51.324.71.147.51.173.01.883.81.435.01.642.80.6
mixed conifer forest26.21.324.41.120.50.99.01.25.40.96.80.818.00.5
mixed broadleaf forest22.91.316.91.012.60.74.80.92.20.66.90.912.80.4
pure broadleaf forest25.61.330.91.215.00.811.41.36.40.950.61.723.80.5
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 #158023/144402
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