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NFI2

forest area: protection forest perimeter SilvaProtect · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionstand stability %± %± %±
Western Juran/a..0.30.20.20.2
critical2.21.11.50.51.60.4
less stable45.63.733.31.835.91.6
stable52.23.764.91.862.21.7
total100.0.100.0.100.0.
Eastern Juran/a......
critical..1.40.81.20.7
less stable39.39.231.63.232.53.0
stable60.79.267.03.266.33.0
total100.0.100.0.100.0.
Western Plateaun/a......
critical..3.31.12.91.0
less stable43.39.147.33.246.93.0
stable56.79.049.43.250.23.0
total100.0.100.0.100.0.
Central Plateaun/a..0.80.50.70.4
critical7.33.57.31.47.31.3
less stable36.46.546.82.645.42.5
stable56.46.745.12.646.62.5
total100.0.100.0.100.0.
Eastern Plateaun/a..0.30.20.30.2
critical2.92.93.90.83.90.8
less stable44.18.537.02.037.41.9
stable52.98.658.72.058.42.0
total100.0.100.0.100.0.
Western Pre-Alpsn/a0.70.7..0.40.4
critical11.02.69.43.010.42.0
less stable49.04.252.65.150.43.2
stable39.34.137.95.038.83.2
total100.0.100.0.100.0.
Central Pre-Alpsn/a1.10.61.70.81.40.5
critical8.61.79.21.78.91.2
less stable54.33.046.62.950.32.1
stable36.12.942.52.939.42.1
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a1.40.84.11.42.70.8
critical6.91.77.11.87.01.3
less stable52.73.447.03.650.02.5
stable39.03.341.83.540.32.4
total100.0.100.0.100.0.
Northwestern Alpsn/a1.60.92.71.62.00.8
critical7.81.912.93.29.61.7
less stable51.83.640.44.747.72.9
stable38.93.543.94.840.72.8
total100.0.100.0.100.0.
Central Alpsn/a3.92.25.62.74.71.8
critical24.74.921.14.822.93.5
less stable48.15.738.15.843.34.1
stable23.44.835.25.729.03.7
total100.0.100.0.100.0.
Northeastern Alpsn/a6.82.31.71.75.21.7
critical10.02.812.34.410.82.3
less stable55.44.645.66.652.23.8
stable27.84.140.36.531.83.5
total100.0.100.0.100.0.
Southwestern Alpsn/a1.80.61.91.11.80.5
critical9.21.410.92.49.61.2
less stable47.12.439.03.844.92.0
stable42.02.348.23.943.62.0
total100.0.100.0.100.0.
Southeastern Alpsn/a2.00.71.20.61.70.5
critical12.11.69.01.610.71.1
less stable48.62.447.32.748.11.8
stable37.32.342.52.739.51.8
total100.0.100.0.100.0.
Southern Alpsn/a0.60.3..0.50.3
critical6.81.07.42.16.90.9
less stable44.82.035.53.943.01.8
stable47.82.057.24.149.61.8
total100.0.100.0.100.0.
Switzerlandn/a1.50.21.00.21.20.1
critical8.60.56.00.47.10.3
less stable48.30.940.60.844.00.6
stable41.70.952.40.847.70.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157823/144202

NFI2

forest area: protection forest perimeter SilvaProtect · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juran/a..0.4710.471
critical0.7501.8312.527
less stable14.81040.1654.95
stable16.91078.0494.93
total32.47120.22152.61
Eastern Juran/a......
critical..0.6580.658
less stable2.13013.31015.59
stable3.32328.2631.55
total5.41842.1347.52
Western Plateaun/a......
critical..1.4351.435
less stable2.32721.0823.37
stable3.12421.9724.97
total5.41744.3349.73
Central Plateaun/a..0.5580.558
critical0.7504.4195.018
less stable3.42228.0631.36
stable5.21727.0632.26
total9.21359.9369.12
Eastern Plateaun/a..0.4710.471
critical0.21004.1214.320
less stable2.72638.8641.55
stable3.22361.6464.84
total6.117104.92111.02
Western Pre-Alpsn/a0.2100..0.2100
critical2.9241.6334.519
less stable12.8109.01321.87
stable10.3126.51616.89
total26.1617.1943.23
Central Pre-Alpsn/a0.5580.9451.435
critical4.1214.8198.914
less stable25.9724.3850.35
stable17.2922.2839.56
total47.8552.34100.12
Eastern Pre-Alpsn/a0.5581.4351.930
critical2.6252.4265.018
less stable20.0816.01036.05
stable14.81014.31029.06
total37.9534.1672.02
Northwestern Alpsn/a0.6580.5581.141
critical2.8252.6265.418
less stable18.698.21426.87
stable14.0108.91422.88
total35.9520.2956.13
Central Alpsn/a0.5570.7501.337
critical3.4222.7256.116
less stable6.7154.91811.611
stable3.3234.5197.814
total13.9912.81026.85
Northeastern Alpsn/a1.4350.21001.633
critical2.0281.2373.222
less stable11.3114.51915.79
stable5.6163.9209.612
total20.379.81230.15
Southwestern Alpsn/a1.4350.5581.930
critical6.9153.0239.913
less stable35.5610.81246.45
stable31.7613.41145.15
total75.5327.87103.32
Southeastern Alpsn/a1.6330.7502.328
critical9.2135.21814.511
less stable37.3627.5764.84
stable28.6724.7853.35
total76.6458.25134.82
Southern Alpsn/a0.750..0.750
critical7.4151.9309.313
less stable49.259.21458.45
stable52.5514.81067.34
total109.9325.98135.82
Switzerlandn/a7.4156.21713.511
critical43.0637.8780.85
less stable242.62255.62498.12
stable209.63329.92539.51
total502.51629.511132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157824/144203

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....2.10.42.00.71.40.60.80.41.40.2
21-40%0.50.50.60.64.90.79.71.519.42.17.61.17.30.5
41-60%1.40.84.21.619.11.221.92.130.82.518.91.618.60.7
61-80%34.33.228.53.535.31.441.02.535.02.530.21.834.50.9
over 80%63.93.266.73.738.61.525.42.213.41.842.52.038.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%0.90.30.50.22.80.63.51.52.10.92.51.21.50.2
21-40%4.50.70.80.29.91.018.63.218.52.39.62.46.30.4
41-60%11.61.14.00.522.61.534.43.932.32.824.43.414.40.6
61-80%28.21.521.31.133.91.727.63.733.02.837.23.927.70.7
over 80%54.81.773.41.230.81.615.93.014.22.126.33.550.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.70.30.50.22.40.42.40.71.70.51.10.41.50.1
21-40%3.70.60.80.27.00.612.11.419.01.68.01.06.70.3
41-60%9.50.94.00.520.60.925.21.931.41.820.01.416.30.4
61-80%29.41.422.11.134.71.137.52.134.11.931.61.730.70.6
over 80%56.61.572.71.235.31.122.81.813.81.439.31.744.80.6
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 #157825/144204

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....4.1211.4350.9450.9457.216
21-40%0.21000.21009.4146.61611.9128.51436.77
41-60%0.5581.23836.8714.91018.8921.2993.54
61-80%13.3118.31468.3527.9721.5833.97173.23
over 80%24.8819.4974.6417.398.21447.75192.03
total38.8629.17193.2268.1361.24112.23502.71
outside of perimeter0-20%1.4351.2384.1210.9451.1410.7509.414
21-40%7.0161.83214.4114.6199.1142.72639.47
41-60%17.9109.01432.878.51415.8106.71690.84
61-80%43.7648.4649.066.81516.21010.213174.33
over 80%84.84167.0244.663.9217.0157.315314.62
total154.82227.41144.8324.7849.1527.67628.41
total0-20%1.4351.2388.2152.2281.9301.63316.510
21-40%7.2161.93023.7811.21220.9911.11276.15
41-60%18.5910.21369.6523.4834.7627.97184.33
61-80%56.9556.75117.3334.7637.6644.26347.52
over 80%109.63186.42119.2321.2815.21055.05506.61
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157826/144205

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantondegree of cover (aerial photo, 5 classes) %± %± %±
AG0-20%..0.40.40.40.4
21-40%......
41-60%..2.30.92.30.9
61-80%22.213.923.42.623.42.6
over 80%77.813.873.82.874.02.7
total100.0.100.0.100.0.
AI0-20%..7.17.03.13.1
21-40%5.65.514.39.59.45.2
41-60%22.29.914.39.518.87.0
61-80%27.810.714.39.521.97.4
over 80%44.411.850.013.546.98.8
total100.0.100.0.100.0.
AR0-20%......
21-40%4.54.5..2.01.9
41-60%4.54.53.43.43.92.7
61-80%22.79.048.39.437.36.8
over 80%68.29.948.39.456.87.0
total100.0.100.0.100.0.
BE0-20%1.40.51.20.51.30.4
21-40%2.70.84.70.93.70.6
41-60%15.81.713.21.514.41.1
61-80%40.82.329.62.134.91.6
over 80%39.42.351.32.345.71.6
total100.0.100.0.100.0.
BL/BS0-20%......
21-40%......
41-60%..3.62.12.91.7
61-80%28.69.925.34.825.94.3
over 80%71.49.871.15.071.24.5
total100.0.100.0.100.0.
FR0-20%......
21-40%1.21.21.41.01.30.8
41-60%16.84.18.92.411.82.1
61-80%41.05.421.93.428.83.0
over 80%41.05.467.93.958.13.3
total100.0.100.0.100.0.
GE0-20%......
21-40%......
41-60%..9.39.29.39.2
61-80%......
over 80%..90.79.290.79.2
total..100.0.100.0.
GL0-20%3.62.5..2.21.6
21-40%3.62.511.45.46.62.6
41-60%23.85.831.77.926.94.7
61-80%20.05.422.87.121.14.3
over 80%49.06.834.18.043.25.2
total100.0.100.0.100.0.
GR0-20%1.60.52.50.81.90.5
21-40%15.61.517.42.016.31.2
41-60%29.51.931.22.430.11.5
61-80%33.02.034.02.533.41.5
over 80%20.41.714.91.918.31.3
total100.0.100.0.100.0.
JU0-20%..0.80.80.50.5
21-40%..1.61.11.00.7
41-60%1.51.511.42.97.92.0
61-80%30.95.617.93.522.53.0
over 80%67.65.568.34.268.13.4
total100.0.100.0.100.0.
LU0-20%2.62.5..0.40.4
21-40%..5.61.64.71.4
41-60%7.74.37.71.97.71.7
61-80%28.27.230.53.330.13.0
over 80%61.67.856.33.557.23.2
total100.0.100.0.100.0.
NE0-20%..2.21.21.91.1
21-40%4.24.12.91.43.11.4
41-60%4.24.113.72.912.32.6
61-80%45.810.241.04.241.73.9
over 80%45.810.240.34.241.13.9
total100.0.100.0.100.0.
NW0-20%5.04.9..2.52.5
21-40%..15.08.17.54.2
41-60%9.56.420.09.014.85.6
61-80%20.19.135.010.727.67.1
over 80%65.310.630.010.347.67.9
total100.0.100.0.100.0.
OW0-20%1.91.83.62.52.71.6
21-40%3.72.610.64.17.22.5
41-60%16.75.131.66.224.34.1
61-80%37.06.629.86.133.34.5
over 80%40.76.724.55.732.44.5
total100.0.100.0.100.0.
SG0-20%1.10.83.11.52.00.8
21-40%3.31.34.71.93.91.1
41-60%15.62.716.33.315.92.1
61-80%31.33.530.24.030.92.6
over 80%48.63.745.74.447.42.8
total100.0.100.0.100.0.
SH0-20%..1.61.61.51.5
21-40%..3.02.12.82.0
41-60%......
61-80%66.727.319.55.121.65.2
over 80%33.327.475.95.574.05.5
total100.0.100.0.100.0.
SO0-20%......
21-40%......
41-60%..3.01.32.81.2
61-80%5.95.717.12.916.12.7
over 80%94.15.679.93.181.22.9
total100.0.100.0.100.0.
SZ0-20%1.31.33.72.12.51.3
21-40%3.92.29.93.37.02.0
41-60%9.13.319.84.414.62.8
61-80%32.55.332.15.232.33.7
over 80%53.25.734.65.343.73.9
total100.0.100.0.100.0.
TG0-20%..1.81.31.61.1
21-40%..3.61.83.21.6
41-60%6.76.57.32.57.32.3
61-80%53.312.927.34.330.44.1
over 80%40.012.759.94.757.54.4
total100.0.100.0.100.0.
TI0-20%0.80.41.71.21.00.4
21-40%6.51.18.42.56.91.0
41-60%16.61.722.73.817.81.5
61-80%31.12.136.94.432.21.9
over 80%45.02.230.34.242.22.0
total100.0.100.0.100.0.
UR0-20%3.92.75.03.54.42.1
21-40%7.83.822.46.614.23.7
41-60%19.65.627.57.123.14.4
61-80%45.17.027.47.137.45.1
over 80%23.56.017.66.020.94.3
total100.0.100.0.100.0.
VD0-20%1.61.11.40.61.50.5
21-40%6.32.27.91.37.51.1
41-60%17.53.416.91.817.01.6
61-80%33.34.227.12.228.61.9
over 80%41.34.446.62.445.42.1
total100.0.100.0.100.0.
VS0-20%2.20.74.91.73.00.7
21-40%10.51.517.12.912.31.3
41-60%21.71.933.43.724.81.7
61-80%39.02.325.63.435.41.9
over 80%26.52.118.93.124.51.7
total100.0.100.0.100.0.
ZG0-20%......
21-40%6.36.1..2.92.9
41-60%......
61-80%12.58.442.111.428.67.7
over 80%81.39.357.911.468.67.7
total100.0.100.0.100.0.
ZH0-20%..0.70.50.70.5
21-40%..1.50.71.40.7
41-60%11.110.55.91.46.01.4
61-80%11.110.522.42.522.12.5
over 80%77.813.869.52.869.82.7
total100.0.100.0.100.0.
Switzerland0-20%1.40.21.50.21.50.1
21-40%7.30.56.20.46.70.3
41-60%18.60.714.40.616.20.4
61-80%34.50.927.60.730.70.6
over 80%38.20.950.30.845.00.6
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #157827/144206

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
AG0-20%..0.21000.2100
21-40%......
41-60%..1.1401.140
61-80%0.47111.11111.511
over 80%1.33735.0436.34
total1.73347.5249.12
AI0-20%..0.21000.2100
21-40%0.21000.3700.556
41-60%0.6480.3701.038
61-80%0.8420.3701.134
over 80%1.3321.1342.420
total2.9172.3225.27
AR0-20%......
21-40%0.2100..0.2100
41-60%0.21000.21000.370
61-80%0.8432.3243.119
over 80%2.4222.3244.713
total3.5174.7148.26
BE0-20%1.1411.1412.129
21-40%2.1294.1216.217
41-60%12.51211.61224.18
61-80%32.3726.0858.35
over 80%31.2745.1676.44
total79.2487.93167.22
BL/BS0-20%......
21-40%......
41-60%..0.6570.657
61-80%1.2404.1205.317
over 80%3.02411.6914.67
total4.22016.4620.54
FR0-20%......
21-40%0.21000.4710.658
41-60%2.6262.4275.018
61-80%6.3165.91712.111
over 80%6.31618.3824.56
total15.3926.9642.23
GE0-20%......
21-40%......
41-60%..0.21000.2100
61-80%......
over 80%..2.4212.421
total..2.7182.718
GL0-20%0.370..0.370
21-40%0.3700.7491.040
41-60%2.3271.9304.219
61-80%1.9291.4343.321
over 80%4.7172.1286.813
total9.6116.11515.77
GR0-20%1.6331.6333.123
21-40%15.41010.91226.38
41-60%29.1719.5948.65
61-80%32.5721.3953.85
over 80%20.199.31329.47
total98.7362.55161.22
JU0-20%..0.21000.2100
21-40%..0.4710.471
41-60%0.21002.5262.725
61-80%3.7213.9207.614
over 80%8.21314.9923.15
total12.11021.9633.93
LU0-20%0.2100..0.2100
21-40%..1.9301.930
41-60%0.5582.6253.123
61-80%1.93010.41212.310
over 80%4.22019.3723.46
total6.81534.2441.03
NE0-20%..0.5580.558
21-40%0.21000.7500.944
41-60%0.21003.3223.521
61-80%1.92910.01112.010
over 80%1.9299.91111.810
total4.21924.5528.73
NW0-20%0.2100..0.2100
21-40%..0.6560.656
41-60%0.4710.8481.239
61-80%0.8481.4352.227
over 80%2.6241.2383.718
total3.9183.9177.87
OW0-20%0.21000.3710.558
21-40%0.3701.0401.435
41-60%1.6323.1224.617
61-80%3.4202.9236.414
over 80%3.8192.4256.214
total9.3109.81019.14
SG0-20%0.4710.7501.141
21-40%1.0411.1412.129
41-60%4.9183.7218.613
61-80%9.8126.81516.69
over 80%15.2910.31225.57
total31.3622.5753.83
SH0-20%..0.21000.2100
21-40%..0.4710.471
41-60%......
61-80%0.4702.4262.824
over 80%0.21009.499.68
total0.65712.4513.04
SO0-20%......
21-40%......
41-60%..0.9450.945
61-80%0.21005.0175.217
over 80%2.82423.6526.34
total2.92329.5432.43
SZ0-20%0.21000.5570.750
21-40%0.5571.4352.030
41-60%1.3372.9244.120
61-80%4.5194.6199.112
over 80%7.3145.01712.39
total13.8914.5928.24
TG0-20%..0.3700.370
21-40%..0.7490.749
41-60%0.21001.4351.533
61-80%1.3345.0166.414
over 80%1.04011.1912.18
total2.52418.4520.94
TI0-20%0.7500.4711.141
21-40%5.7171.8317.515
41-60%14.6114.81919.49
61-80%27.377.81535.16
over 80%39.666.41646.05
total87.9321.29109.22
UR0-20%0.4710.4700.750
21-40%0.7491.6332.427
41-60%1.8312.0293.820
61-80%4.2192.0296.215
over 80%2.2281.3373.521
total9.3117.31416.67
VD0-20%0.4711.1411.435
21-40%1.4355.8177.215
41-60%3.92112.51116.410
61-80%7.41520.1927.57
over 80%9.21334.5643.75
total22.2874.0396.22
VS0-20%1.7311.4353.123
21-40%7.9144.71912.711
41-60%16.4109.31325.67
61-80%29.577.11536.66
over 80%20.085.31825.37
total75.5327.87103.32
ZG0-20%......
21-40%0.2100..0.2100
41-60%......
61-80%0.3701.3321.728
over 80%2.2231.8264.013
total2.7193.2175.86
ZH0-20%..0.4710.471
21-40%..0.7500.750
41-60%0.21002.8243.024
61-80%0.210010.81211.011
over 80%1.23733.5534.84
total1.63348.3249.92
Switzerland0-20%7.2169.31416.510
21-40%36.5739.2775.75
41-60%93.2490.54183.73
61-80%173.13174.23347.32
over 80%191.83317.12508.91
total501.61630.311131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #157828/144207

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
inside perimeter0-20%....0.90.42.40.40.80.41.40.2
21-40%0.50.5..2.70.611.30.97.71.17.30.5
41-60%1.40.82.51.415.01.424.81.218.81.618.60.7
61-80%34.83.328.64.137.51.935.51.330.41.834.50.9
over 80%63.43.368.94.243.82.026.11.242.42.038.20.9
total100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%0.90.30.60.21.40.53.50.72.61.31.50.2
21-40%4.00.71.30.36.01.016.81.410.22.56.30.4
41-60%10.61.04.70.618.81.629.91.723.23.514.40.6
61-80%27.01.521.91.235.02.030.51.736.74.027.70.7
over 80%57.51.771.51.338.82.019.31.527.33.750.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.70.30.50.21.20.32.80.41.20.41.50.1
21-40%3.30.51.10.34.30.613.30.88.21.06.70.3
41-60%8.90.94.50.616.81.126.61.019.61.416.30.5
61-80%28.51.422.51.236.31.433.71.131.61.730.70.6
over 80%58.61.571.31.341.41.423.60.939.51.844.80.6
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 #157829/144208

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....1.1415.2180.9457.216
21-40%0.2100..3.02425.088.51436.67
41-60%0.5580.55816.81054.8520.6993.24
61-80%13.3116.01741.9678.6433.37173.13
over 80%24.2814.41149.0557.7546.55191.73
total38.1620.99111.83221.22109.93501.91
outside of perimeter0-20%1.4351.2381.4354.5200.7509.314
21-40%6.5162.6266.21721.492.62639.47
41-60%17.2109.81319.5938.266.01790.74
61-80%43.7645.8636.3739.069.513174.33
over 80%93.13149.5240.2624.687.116314.42
total162.02208.91103.53127.8325.98628.11
total0-20%1.4351.2382.5279.7131.63316.510
21-40%6.7162.6269.21446.4611.11276.05
41-60%17.81010.41336.3793.0426.68184.03
61-80%57.0551.8578.24117.6342.86347.42
over 80%117.33163.8289.2482.3453.65506.21
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157830/144209

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..1.80.51.70.62.20.71.80.60.80.41.40.2
21-40%0.30.33.80.84.31.010.51.516.61.87.71.17.30.5
41-60%1.80.719.31.615.61.821.71.930.22.218.81.618.60.7
61-80%32.52.639.52.030.02.339.02.334.52.330.41.834.50.9
over 80%65.42.635.61.948.42.526.52.116.81.842.42.038.10.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%0.70.21.80.63.11.04.91.72.10.82.61.31.50.2
21-40%2.40.38.61.39.01.617.12.917.42.110.22.56.30.4
41-60%7.20.621.71.818.92.233.43.731.72.523.23.514.40.6
61-80%24.10.933.92.132.42.625.63.433.82.636.74.027.70.7
over 80%65.51.034.02.136.62.718.93.115.02.027.33.750.10.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%0.60.21.80.42.30.63.00.71.90.51.20.41.50.1
21-40%2.20.36.00.76.40.912.31.316.91.38.21.06.70.3
41-60%6.50.520.41.217.01.424.81.730.91.719.61.416.30.5
61-80%25.20.937.01.531.11.735.41.934.21.731.61.730.70.6
over 80%65.51.034.91.443.21.824.51.716.01.339.51.844.80.6
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 #157831/144210

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%..2.0301.2381.7311.4350.9457.216
21-40%0.21004.2213.1237.91412.7118.51436.67
41-60%1.14121.1911.11216.41023.2820.6993.44
61-80%19.1943.4621.3829.5726.5733.37173.13
over 80%38.3739.0634.4620.0812.91146.55191.33
total58.65109.7371.1475.5376.64109.93501.51
outside of perimeter0-20%2.7261.6331.7311.4351.2380.7509.314
21-40%9.1147.8155.0184.71910.1132.62639.47
41-60%26.9819.5910.5129.31318.496.01790.74
61-80%89.5430.5718.197.11519.799.513174.43
over 80%243.3230.6720.495.3188.7147.116315.32
total371.4190.0455.8527.8758.2525.98629.01
total0-20%2.7263.6222.9243.1232.6261.63316.510
21-40%9.31411.9128.11412.71122.8811.11275.95
41-60%28.0840.6621.6825.6741.6626.68184.13
61-80%108.5473.9439.4636.6646.1542.86347.52
over 80%281.6269.6454.9425.3721.6853.65506.61
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157832/144211

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.00.40.80.3
21-40%0.50.55.00.84.10.7
41-60%1.70.913.31.310.91.1
61-80%35.23.527.91.729.41.6
over 80%62.63.652.71.954.81.7
total100.0.100.0.100.0.
Eastern Jura0-20%..0.50.50.40.4
21-40%..0.90.60.80.5
41-60%..2.31.02.00.9
61-80%32.18.824.32.925.22.8
over 80%67.98.872.03.071.62.9
total100.0.100.0.100.0.
Western Plateau0-20%..0.80.60.70.5
21-40%..1.60.81.50.7
41-60%3.33.37.31.76.91.5
61-80%40.09.020.82.622.92.5
over 80%56.79.169.42.968.02.8
total100.0.100.0.100.0.
Central Plateau0-20%......
21-40%..0.80.50.70.4
41-60%1.81.82.20.82.20.7
61-80%16.45.020.52.120.02.0
over 80%81.85.276.42.377.12.1
total100.0.100.0.100.0.
Eastern Plateau0-20%..0.80.40.80.4
21-40%..1.40.51.30.5
41-60%2.92.95.10.95.00.9
61-80%38.28.323.31.724.11.7
over 80%58.88.469.41.968.91.9
total100.0.100.0.100.0.
Western Pre-Alps0-20%0.70.7..0.40.4
21-40%4.81.86.32.55.41.5
41-60%18.63.225.34.521.22.6
61-80%41.44.127.34.635.83.1
over 80%34.53.941.15.137.13.1
total100.0.100.0.100.0.
Central Pre-Alps0-20%1.50.71.00.61.20.5
21-40%1.90.87.11.54.60.9
41-60%16.02.220.12.318.11.6
61-80%42.03.036.12.838.92.1
over 80%38.73.035.72.837.12.0
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%0.50.52.51.11.40.6
21-40%2.31.04.11.43.20.9
41-60%11.52.213.82.512.61.6
61-80%29.43.137.33.533.12.3
over 80%56.43.442.33.549.72.5
total100.0.100.0.100.0.
Northwestern Alps0-20%3.11.35.52.24.01.1
21-40%5.71.714.73.48.91.6
41-60%24.33.122.94.023.82.5
61-80%34.73.433.94.534.42.7
over 80%32.13.423.04.028.82.6
total100.0.100.0.100.0.
Central Alps0-20%2.61.85.62.74.01.6
21-40%6.52.818.34.612.12.7
41-60%14.34.024.05.118.93.2
61-80%37.75.525.35.231.73.8
over 80%39.05.626.85.333.13.9
total100.0.100.0.100.0.
Northeastern Alps0-20%3.41.71.91.92.91.3
21-40%6.72.314.14.69.12.2
41-60%23.63.930.06.125.73.3
61-80%26.14.024.55.725.63.3
over 80%40.24.529.66.036.73.6
total100.0.100.0.100.0.
Southwestern Alps0-20%2.20.74.91.73.00.7
21-40%10.51.517.12.912.31.3
41-60%21.71.933.43.724.81.7
61-80%39.02.325.63.435.41.9
over 80%26.52.118.93.124.51.7
total100.0.100.0.100.0.
Southeastern Alps0-20%1.80.62.10.81.90.5
21-40%16.61.817.42.116.91.3
41-60%30.22.231.72.530.91.7
61-80%34.52.333.82.634.21.7
over 80%16.81.815.02.016.01.3
total100.0.100.0.100.0.
Southern Alps0-20%0.80.42.61.31.20.4
21-40%7.71.110.22.58.21.0
41-60%18.81.623.23.519.61.4
61-80%30.41.836.74.031.61.7
over 80%42.42.027.33.739.51.8
total100.0.100.0.100.0.
Switzerland0-20%1.40.21.50.21.50.1
21-40%7.30.56.30.46.70.3
41-60%18.60.714.40.616.30.4
61-80%34.50.927.70.730.80.6
over 80%38.10.950.10.844.80.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157833/144212

NFI2

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%..1.2381.238
21-40%0.21006.1176.217
41-60%0.55816.01016.610
61-80%11.41233.5744.95
over 80%20.3963.4483.73
total32.47120.22152.61
Eastern Jura0-20%..0.21000.2100
21-40%..0.4710.471
41-60%..1.0441.044
61-80%1.73310.21212.011
over 80%3.72230.3534.05
total5.41842.1347.52
Western Plateau0-20%..0.4710.471
21-40%..0.7500.750
41-60%0.21003.3233.422
61-80%2.2289.21311.411
over 80%3.12430.7533.85
total5.41744.3349.73
Central Plateau0-20%......
21-40%..0.5580.558
41-60%0.21001.3351.533
61-80%1.53312.31113.810
over 80%7.51445.8453.33
total9.21359.9369.12
Eastern Plateau0-20%..0.9450.945
21-40%..1.4351.435
41-60%0.21005.3185.518
61-80%2.32724.4826.77
over 80%3.62272.9376.43
total6.117104.92111.02
Western Pre-Alps0-20%0.2100..0.2100
21-40%1.3371.1402.327
41-60%4.9184.3209.213
61-80%10.8124.71915.59
over 80%9.0137.01516.09
total26.1617.1943.23
Central Pre-Alps0-20%0.7500.5581.238
21-40%0.9453.7224.619
41-60%7.61510.51218.19
61-80%20.1918.8938.96
over 80%18.5918.7937.16
total47.8552.34100.12
Eastern Pre-Alps0-20%0.21000.9451.041
21-40%0.9451.4352.327
41-60%4.3204.7199.113
61-80%11.11212.71123.87
over 80%21.4814.41035.85
total37.9534.1672.02
Northwestern Alps0-20%1.1411.1412.229
21-40%2.1303.0255.019
41-60%8.7144.62013.411
61-80%12.5116.81619.39
over 80%11.5124.61916.210
total35.9520.2956.13
Central Alps0-20%0.4710.7501.140
21-40%0.9442.3273.223
41-60%2.0293.1235.118
61-80%5.2173.2238.513
over 80%5.4173.4228.913
total13.9912.81026.85
Northeastern Alps0-20%0.7500.21000.945
21-40%1.4351.4352.724
41-60%4.8182.9247.714
61-80%5.3172.4267.714
over 80%8.2132.92311.111
total20.379.81230.15
Southwestern Alps0-20%1.7311.4353.123
21-40%7.9144.71912.711
41-60%16.4109.31325.67
61-80%29.577.11536.66
over 80%20.085.31825.37
total75.5327.87103.32
Southeastern Alps0-20%1.4351.2382.626
21-40%12.71110.11322.88
41-60%23.2818.4941.66
61-80%26.5719.7946.15
over 80%12.9118.71421.68
total76.6458.25134.82
Southern Alps0-20%0.9450.7501.633
21-40%8.5142.62611.112
41-60%20.696.01726.68
61-80%33.379.51342.86
over 80%46.557.11653.65
total109.9325.98135.82
Switzerland0-20%7.2169.41416.610
21-40%36.6739.5776.15
41-60%93.6490.84184.43
61-80%173.53174.63348.12
over 80%191.63315.22506.81
total502.51629.511132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157834/144213

NFI2

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 NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a8.31.99.72.312.81.011.71.612.01.711.41.311.70.6
less than 10 years ago39.43.351.53.934.21.416.71.929.62.410.21.227.30.8
11-20 years ago22.72.823.63.321.51.212.91.722.22.29.81.218.00.7
21-30 years ago9.72.06.71.911.91.012.21.69.71.68.51.110.40.6
31-40 years ago6.91.72.41.26.40.713.41.77.41.49.11.17.90.5
41-50 years ago4.61.41.81.03.90.69.91.54.01.013.51.46.80.5
over 50 years ago8.31.94.21.69.20.923.12.115.11.937.41.917.80.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimetern/a11.51.112.00.914.21.216.63.112.42.012.22.612.60.6
less than 10 years ago50.01.761.51.435.31.717.23.126.32.612.22.646.00.8
11-20 years ago24.41.519.21.121.61.414.52.919.22.313.52.720.60.7
21-30 years ago8.00.94.20.69.51.011.12.68.51.77.12.17.10.4
31-40 years ago3.20.61.20.34.20.78.32.36.41.59.62.43.50.3
41-50 years ago0.50.20.70.23.70.76.92.13.51.19.62.42.20.2
over 50 years ago2.40.51.20.311.51.125.43.623.72.535.83.88.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a10.80.911.70.813.40.813.01.412.21.311.51.112.20.4
less than 10 years ago47.91.560.41.334.71.116.81.628.11.810.61.137.70.6
11-20 years ago24.01.319.71.021.60.913.31.520.91.610.51.119.50.5
21-30 years ago8.30.84.50.510.90.711.91.49.21.18.21.08.60.3
31-40 years ago4.00.61.40.35.40.512.11.46.91.09.21.05.40.3
41-50 years ago1.30.30.80.23.80.49.11.23.80.812.81.24.20.2
over 50 years ago3.60.61.60.310.20.723.71.818.91.637.11.712.40.4
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 #157835/144214

NFI2

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 NFI2
state 1993/95
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 perimetern/a3.2232.82524.888.0147.31512.71158.95
less than 10 years ago15.31015.01166.0511.31218.1911.512137.33
11-20 years ago8.8146.91641.668.81313.61111.01290.64
21-30 years ago3.8221.93023.098.3145.9179.51352.56
31-40 years ago2.7260.75012.4129.1134.51910.31339.76
41-50 years ago1.8310.5587.6156.8152.42615.21034.37
over 50 years ago3.2231.23817.91015.7109.31342.0689.34
total38.8629.17193.2268.1361.24112.23502.71
outside of perimetern/a17.81027.2820.594.1206.1173.42379.15
less than 10 years ago77.44139.8351.164.32012.9113.423288.92
11-20 years ago37.7643.6631.373.6229.4133.722129.43
21-30 years ago12.4129.51313.8112.7254.2201.93044.66
31-40 years ago5.0192.8256.0172.1293.1232.72621.79
41-50 years ago0.7501.6335.3181.7311.7312.72613.711
over 50 years ago3.8222.82516.7106.31611.7129.91351.06
total154.82227.41144.8324.7849.1527.67628.41
totaln/a21.0930.0745.3612.11113.41116.110137.93
less than 10 years ago92.73154.92117.1315.61031.0714.910426.22
11-20 years ago46.5650.5572.9412.41123.0814.711220.03
21-30 years ago16.21011.51236.8711.01210.11311.51297.14
31-40 years ago7.7153.52218.41011.2127.71512.91161.45
41-50 years ago2.5272.12912.9128.5144.22017.9948.06
over 50 years ago7.0164.12134.5722.0820.9951.95140.43
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157836/144215

NFI2

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 NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantontime of last treatment (classes of 10 years) %± %± %±
AGn/a..9.41.89.11.8
less than 10 years ago22.213.968.02.966.42.9
11-20 years ago33.315.715.62.316.22.3
21-30 years ago11.110.53.51.23.81.2
31-40 years ago..2.00.91.90.8
41-50 years ago22.213.90.40.41.10.7
over 50 years ago11.110.51.20.71.50.8
total100.0.100.0.100.0.
AIn/a16.78.914.39.515.66.5
less than 10 years ago33.311.214.39.525.07.7
11-20 years ago27.810.735.712.931.38.2
21-30 years ago16.78.921.411.118.87.0
31-40 years ago......
41-50 years ago5.65.57.17.06.34.3
over 50 years ago..7.17.03.13.1
total100.0.100.0.100.0.
ARn/a22.79.06.84.713.74.8
less than 10 years ago31.810.051.39.342.96.9
11-20 years ago27.39.628.28.427.86.3
21-30 years ago13.67.46.84.79.84.2
31-40 years ago4.54.5..2.01.9
41-50 years ago......
over 50 years ago..6.84.73.92.7
total100.0.100.0.100.0.
BEn/a10.11.412.81.511.51.0
less than 10 years ago41.22.350.52.346.11.6
11-20 years ago24.12.021.51.922.71.4
21-30 years ago10.61.56.11.18.20.9
31-40 years ago5.41.12.80.74.10.6
41-50 years ago2.30.71.40.51.80.4
over 50 years ago6.31.24.91.05.50.7
total100.0.100.0.100.0.
BL/BSn/a9.56.410.73.410.53.0
less than 10 years ago33.310.345.95.543.34.9
11-20 years ago38.110.631.55.132.84.6
21-30 years ago9.56.44.72.35.62.3
31-40 years ago9.56.44.82.45.82.3
41-50 years ago..1.21.21.01.0
over 50 years ago..1.21.21.01.0
total100.0.100.0.100.0.
FRn/a8.43.113.02.811.32.1
less than 10 years ago34.95.247.24.142.83.3
11-20 years ago21.74.520.53.421.02.7
21-30 years ago21.74.56.92.112.22.2
31-40 years ago2.41.75.51.94.41.4
41-50 years ago3.62.12.71.43.11.1
over 50 years ago7.22.84.11.65.21.5
total100.0.100.0.100.0.
GEn/a..28.014.228.014.2
less than 10 years ago..25.313.225.313.2
11-20 years ago......
21-30 years ago..9.39.29.39.2
31-40 years ago..9.39.29.39.2
41-50 years ago..28.014.128.014.1
over 50 years ago......
total..100.0.100.0.
GLn/a12.84.520.26.815.73.8
less than 10 years ago30.96.228.67.730.04.8
11-20 years ago20.05.428.57.623.34.4
21-30 years ago9.13.95.73.97.82.8
31-40 years ago10.94.25.73.98.93.0
41-50 years ago5.43.1..3.31.9
over 50 years ago11.04.211.45.411.13.3
total100.0.100.0.100.0.
GRn/a13.01.412.21.712.71.1
less than 10 years ago25.81.826.32.326.01.4
11-20 years ago19.31.719.72.119.41.3
21-30 years ago9.11.28.61.58.90.9
31-40 years ago8.61.26.11.37.60.9
41-50 years ago6.11.04.11.05.30.7
over 50 years ago18.11.623.12.220.11.3
total100.0.100.0.100.0.
JUn/a11.83.99.82.710.52.2
less than 10 years ago32.45.740.64.437.73.5
11-20 years ago25.05.234.14.330.93.4
21-30 years ago11.83.99.82.710.52.2
31-40 years ago4.42.54.11.84.21.5
41-50 years ago4.42.50.80.82.11.0
over 50 years ago10.33.70.80.84.21.5
total100.0.100.0.100.0.
LUn/a2.62.514.72.512.72.2
less than 10 years ago38.47.844.73.543.63.2
11-20 years ago33.37.626.93.228.02.9
21-30 years ago15.55.88.62.09.71.9
31-40 years ago2.62.51.50.91.70.8
41-50 years ago......
over 50 years ago7.74.33.61.34.31.3
total100.0.100.0.100.0.
NEn/a8.35.711.52.711.02.5
less than 10 years ago75.08.763.34.165.03.7
11-20 years ago4.24.118.03.316.02.9
21-30 years ago..5.01.94.31.6
31-40 years ago..1.51.01.20.9
41-50 years ago4.24.10.70.71.20.9
over 50 years ago8.35.7..1.20.9
total100.0.100.0.100.0.
NWn/a15.18.115.08.115.05.7
less than 10 years ago54.811.235.010.744.97.9
11-20 years ago15.18.115.08.115.05.7
21-30 years ago......
31-40 years ago......
41-50 years ago10.16.85.04.97.54.2
over 50 years ago5.04.930.010.317.56.1
total100.0.100.0.100.0.
OWn/a13.04.612.34.412.63.2
less than 10 years ago31.56.331.66.231.54.4
11-20 years ago16.75.122.85.619.83.8
21-30 years ago9.34.08.83.89.02.7
31-40 years ago7.43.65.33.06.32.3
41-50 years ago5.63.13.52.44.52.0
over 50 years ago16.75.115.84.816.23.5
total100.0.100.0.100.0.
SGn/a12.92.514.03.113.31.9
less than 10 years ago31.33.544.24.436.72.7
11-20 years ago26.33.324.03.825.32.5
21-30 years ago10.02.23.91.77.51.5
31-40 years ago6.11.81.51.14.21.1
41-50 years ago3.91.44.61.94.21.1
over 50 years ago9.52.27.72.48.81.6
total100.0.100.0.100.0.
SHn/a33.327.49.23.610.33.7
less than 10 years ago..58.46.255.76.1
11-20 years ago33.327.429.25.829.45.7
21-30 years ago33.327.4..1.51.5
31-40 years ago..1.61.61.51.5
41-50 years ago..1.61.61.51.5
over 50 years ago......
total100.0.100.0.100.0.
SOn/a11.87.812.32.512.32.4
less than 10 years ago29.411.155.83.853.43.7
11-20 years ago29.411.123.63.324.23.1
21-30 years ago5.95.74.21.54.31.5
31-40 years ago11.87.82.31.23.21.3
41-50 years ago5.95.7..0.50.5
over 50 years ago5.95.71.81.02.11.1
total100.0.100.0.100.0.
SZn/a13.03.812.33.712.72.6
less than 10 years ago29.95.240.75.535.43.8
11-20 years ago23.44.816.14.119.63.2
21-30 years ago9.13.39.93.39.52.3
31-40 years ago10.43.56.22.78.22.2
41-50 years ago6.52.84.92.45.71.8
over 50 years ago7.83.19.93.38.92.3
total100.0.100.0.100.0.
TGn/a6.76.59.12.78.82.5
less than 10 years ago80.010.260.84.763.14.3
11-20 years ago13.38.824.64.123.23.8
21-30 years ago..3.61.83.21.6
31-40 years ago......
41-50 years ago......
over 50 years ago..1.91.31.71.2
total100.0.100.0.100.0.
TIn/a10.61.412.63.011.01.3
less than 10 years ago8.71.312.63.09.51.2
11-20 years ago8.71.312.63.09.51.2
21-30 years ago8.91.36.72.38.51.1
31-40 years ago8.91.310.12.89.21.2
41-50 years ago14.01.68.42.512.91.4
over 50 years ago40.12.236.94.439.52.0
total100.0.100.0.100.0.
URn/a11.84.527.47.118.64.1
less than 10 years ago37.26.822.56.630.84.9
11-20 years ago11.84.510.04.811.03.3
21-30 years ago13.74.815.05.714.33.7
31-40 years ago5.93.3..3.31.9
41-50 years ago2.01.95.03.53.31.9
over 50 years ago17.75.420.06.318.74.1
total100.0.100.0.100.0.
VDn/a14.33.112.61.613.01.4
less than 10 years ago35.74.344.82.442.72.1
11-20 years ago15.13.219.51.918.51.7
21-30 years ago9.52.611.71.611.21.3
31-40 years ago7.12.33.30.94.20.9
41-50 years ago6.32.21.90.72.90.7
over 50 years ago11.92.96.21.27.51.1
total100.0.100.0.100.0.
VSn/a12.51.615.32.813.31.4
less than 10 years ago17.91.820.13.118.51.6
11-20 years ago12.91.614.62.813.41.4
21-30 years ago12.71.612.22.612.61.3
31-40 years ago12.71.68.02.111.41.3
41-50 years ago9.41.46.11.98.51.1
over 50 years ago21.92.023.63.322.31.7
total100.0.100.0.100.0.
ZGn/a6.36.121.19.514.36.0
less than 10 years ago56.312.463.211.160.08.2
11-20 years ago25.010.910.57.117.16.4
21-30 years ago12.58.4..5.74.0
31-40 years ago......
41-50 years ago......
over 50 years ago..5.35.22.92.9
total100.0.100.0.100.0.
ZHn/a11.110.512.52.012.52.0
less than 10 years ago66.715.765.82.965.82.8
11-20 years ago11.110.515.42.215.32.1
21-30 years ago..4.41.24.31.2
31-40 years ago11.110.51.10.61.40.7
41-50 years ago......
over 50 years ago..0.70.50.70.5
total100.0.100.0.100.0.
Switzerlandn/a11.70.612.60.612.20.4
less than 10 years ago27.30.846.00.837.70.6
11-20 years ago18.00.720.60.719.40.5
21-30 years ago10.40.67.10.48.60.3
31-40 years ago7.90.53.50.35.40.3
41-50 years ago6.80.52.20.24.30.2
over 50 years ago17.80.78.10.412.40.4
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #157837/144216

NFI2

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 NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
AGn/a..4.5204.520
less than 10 years ago0.47132.3532.65
11-20 years ago0.6587.4158.014
21-30 years ago0.21001.7331.931
31-40 years ago..0.9440.944
41-50 years ago0.4710.21000.658
over 50 years ago0.21000.6580.750
total1.73347.5249.12
AIn/a0.5560.3700.842
less than 10 years ago1.0380.3701.332
11-20 years ago0.8420.8421.627
21-30 years ago0.5560.5561.038
31-40 years ago......
41-50 years ago0.21000.21000.370
over 50 years ago..0.21000.2100
total2.9172.3225.27
ARn/a0.8430.3701.136
less than 10 years ago1.1362.4223.517
11-20 years ago1.0391.3342.324
21-30 years ago0.5570.3700.843
31-40 years ago0.2100..0.2100
41-50 years ago......
over 50 years ago..0.3700.370
total3.5174.7148.26
BEn/a8.01511.21219.39
less than 10 years ago32.6744.4677.14
11-20 years ago19.1918.9938.06
21-30 years ago8.4145.41813.711
31-40 years ago4.3202.5276.816
41-50 years ago1.8321.2383.024
over 50 years ago5.0194.3209.314
total79.2487.93167.22
BL/BSn/a0.4701.8322.129
less than 10 years ago1.4377.5148.912
11-20 years ago1.6345.2176.714
21-30 years ago0.4700.8501.240
31-40 years ago0.4700.8491.240
41-50 years ago..0.21000.2100
over 50 years ago..0.21000.2100
total4.22016.4620.54
FRn/a1.3373.5224.819
less than 10 years ago5.31812.71018.08
11-20 years ago3.3235.5178.913
21-30 years ago3.3231.8315.218
31-40 years ago0.4711.5351.831
41-50 years ago0.6580.7501.337
over 50 years ago1.1401.1402.228
total15.3926.9642.23
GEn/a..0.7530.753
less than 10 years ago..0.7570.757
11-20 years ago......
21-30 years ago..0.21000.2100
31-40 years ago..0.21000.2100
41-50 years ago..0.7530.753
over 50 years ago......
total..2.7182.718
GLn/a1.2371.2372.526
less than 10 years ago3.0231.8314.717
11-20 years ago1.9291.7303.720
21-30 years ago0.9440.3701.237
31-40 years ago1.0400.3701.434
41-50 years ago0.557..0.557
over 50 years ago1.1400.7491.831
total9.6116.11515.77
GRn/a12.8117.61520.49
less than 10 years ago25.4816.41041.96
11-20 years ago19.0912.31231.37
21-30 years ago9.0145.41814.411
31-40 years ago8.5143.82112.311
41-50 years ago6.1172.6268.614
over 50 years ago17.9914.51132.37
total98.7362.55161.22
JUn/a1.4352.1283.621
less than 10 years ago3.9208.91212.810
11-20 years ago3.0237.51410.511
21-30 years ago1.4352.1283.621
31-40 years ago0.5570.9441.435
41-50 years ago0.5570.21000.750
over 50 years ago1.2370.21001.435
total12.11021.9633.93
LUn/a0.21005.0185.217
less than 10 years ago2.62515.3917.98
11-20 years ago2.3279.21211.511
21-30 years ago1.0412.9234.020
31-40 years ago0.21000.5580.750
41-50 years ago......
over 50 years ago0.5581.2381.731
total6.81534.2441.03
NEn/a0.4702.8243.223
less than 10 years ago3.22215.5818.76
11-20 years ago0.21004.4194.618
21-30 years ago..1.2371.237
31-40 years ago..0.4710.471
41-50 years ago0.21000.21000.470
over 50 years ago0.470..0.470
total4.21924.5528.73
NWn/a0.6560.6561.239
less than 10 years ago2.1271.4353.519
11-20 years ago0.6560.6561.238
21-30 years ago......
31-40 years ago......
41-50 years ago0.4700.21000.656
over 50 years ago0.21001.2381.435
total3.9183.9177.87
OWn/a1.2371.2372.426
less than 10 years ago2.9233.1226.014
11-20 years ago1.5322.2273.820
21-30 years ago0.9440.9441.730
31-40 years ago0.7490.5571.237
41-50 years ago0.5570.3700.944
over 50 years ago1.5321.5323.122
total9.3109.81019.14
SGn/a4.0203.2237.215
less than 10 years ago9.81210.01219.78
11-20 years ago8.2145.41713.610
21-30 years ago3.1230.9444.020
31-40 years ago1.9300.3712.327
41-50 years ago1.2371.0412.327
over 50 years ago3.0241.7314.719
total31.3622.5753.83
SHn/a0.21001.1401.337
less than 10 years ago..7.2117.211
11-20 years ago0.21003.6203.820
21-30 years ago0.2100..0.2100
31-40 years ago..0.21000.2100
41-50 years ago..0.21000.2100
over 50 years ago......
total0.65712.4513.04
SOn/a0.3713.6214.020
less than 10 years ago0.94416.5817.37
11-20 years ago0.9447.0147.813
21-30 years ago0.21001.2371.435
31-40 years ago0.3710.7501.040
41-50 years ago0.2100..0.2100
over 50 years ago0.21000.5570.750
total2.92329.5432.43
SZn/a1.8311.8313.622
less than 10 years ago4.1195.91610.011
11-20 years ago3.2232.3275.517
21-30 years ago1.3371.4352.725
31-40 years ago1.4350.9442.327
41-50 years ago0.9440.7501.633
over 50 years ago1.1401.4352.526
total13.8914.5928.24
TGn/a0.21001.7311.829
less than 10 years ago2.02811.2913.28
11-20 years ago0.3704.5184.917
21-30 years ago..0.7490.749
31-40 years ago......
41-50 years ago......
over 50 years ago..0.3710.371
total2.52418.4520.94
TIn/a9.3132.72612.012
less than 10 years ago7.7152.72610.413
11-20 years ago7.7152.72610.413
21-30 years ago7.9151.4359.313
31-40 years ago7.9152.12910.013
41-50 years ago12.3111.83114.111
over 50 years ago35.367.81543.15
total87.9321.29109.22
URn/a1.1402.0293.123
less than 10 years ago3.5221.6335.117
11-20 years ago1.1400.7491.831
21-30 years ago1.3371.1402.427
31-40 years ago0.557..0.557
41-50 years ago0.21000.4700.557
over 50 years ago1.6321.5353.123
total9.3117.31416.67
VDn/a3.2239.31312.511
less than 10 years ago7.91433.1641.15
11-20 years ago3.32314.41017.89
21-30 years ago2.1298.61410.712
31-40 years ago1.6332.5264.121
41-50 years ago1.4351.4352.825
over 50 years ago2.6264.6197.215
total22.2874.0396.22
VSn/a9.4134.32013.711
less than 10 years ago13.5115.61719.19
11-20 years ago9.8134.12013.811
21-30 years ago9.6133.42213.011
31-40 years ago9.6132.22811.811
41-50 years ago7.1151.7318.813
over 50 years ago16.5106.61623.18
total75.5327.87103.32
ZGn/a0.21000.7480.842
less than 10 years ago1.5302.0243.515
11-20 years ago0.7480.3701.038
21-30 years ago0.370..0.370
31-40 years ago......
41-50 years ago......
over 50 years ago..0.21000.2100
total2.7193.2175.86
ZHn/a0.21006.0166.216
less than 10 years ago1.14031.8532.85
11-20 years ago0.21007.5147.614
21-30 years ago..2.1282.128
31-40 years ago0.21000.5580.750
41-50 years ago......
over 50 years ago..0.4710.471
total1.63348.3249.92
Switzerlandn/a58.6579.35138.03
less than 10 years ago136.93290.22427.02
11-20 years ago90.44129.63220.13
21-30 years ago52.4644.4696.94
31-40 years ago39.6621.9961.45
41-50 years ago34.3714.01148.36
over 50 years ago89.4450.96140.33
total501.61630.311131.91

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #157838/144217

NFI2

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 NFI2
state 1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %±
inside perimetern/a8.61.911.83.012.21.312.20.911.31.311.70.6
less than 10 years ago37.63.352.14.638.01.926.21.210.31.227.30.8
11-20 years ago23.82.918.53.624.41.717.91.19.61.218.00.7
21-30 years ago9.52.05.92.211.71.311.30.98.51.110.40.6
31-40 years ago7.11.82.51.44.30.89.80.89.21.27.90.5
41-50 years ago4.81.51.71.22.80.76.50.713.31.46.80.5
over 50 years ago8.61.97.62.46.61.016.11.037.81.917.80.7
total100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimetern/a11.31.112.10.914.01.413.81.313.02.812.60.6
less than 10 years ago50.41.762.31.438.12.027.01.610.92.646.00.8
11-20 years ago24.01.418.51.125.51.817.51.412.32.720.60.7
21-30 years ago8.50.93.80.68.21.19.81.17.52.27.10.4
31-40 years ago2.80.61.40.33.40.86.40.99.62.43.50.3
41-50 years ago0.70.30.70.23.10.74.40.89.52.42.20.2
over 50 years ago2.30.51.30.37.71.121.11.537.34.08.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a10.80.912.10.913.11.012.80.711.61.212.20.4
less than 10 years ago48.01.561.41.338.01.426.51.010.41.137.70.6
11-20 years ago23.91.318.51.124.91.217.80.910.11.119.50.5
21-30 years ago8.70.84.00.510.00.910.80.78.31.08.60.3
31-40 years ago3.60.61.50.33.90.68.50.69.21.05.40.3
41-50 years ago1.50.40.80.23.00.55.70.512.61.24.30.2
over 50 years ago3.50.61.80.47.10.717.90.937.71.712.40.4
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 #157839/144218

NFI2

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 NFI2
state 1993/95
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 perimetern/a3.3232.52713.61127.0812.41258.75
less than 10 years ago14.31110.91242.5657.9511.312136.83
11-20 years ago9.1143.92127.2839.7610.61390.44
21-30 years ago3.6221.23813.11125.189.31352.46
31-40 years ago2.7260.5584.81921.7910.11339.76
41-50 years ago1.8320.4713.22314.41114.61034.47
over 50 years ago3.3231.6337.41535.5741.6689.44
total38.1620.99111.83221.22109.93501.91
outside of perimetern/a18.31025.3814.51117.6103.42379.05
less than 10 years ago81.74130.2339.5634.572.825288.72
11-20 years ago38.8638.6626.4822.493.223129.43
21-30 years ago13.8117.9158.51412.5121.93044.66
31-40 years ago4.5203.0243.5228.2142.52721.79
41-50 years ago1.1411.4353.2235.6182.52713.711
over 50 years ago3.8222.6268.01527.089.71351.06
total162.02208.91103.53127.8325.98628.11
totaln/a21.6927.7828.1844.7615.710137.83
less than 10 years ago96.03141.0281.9492.4414.111425.52
11-20 years ago47.9542.5653.6562.1513.811219.83
21-30 years ago17.4109.11421.6937.6711.31297.04
31-40 years ago7.3163.5228.31429.8712.51161.45
41-50 years ago2.9251.8326.41619.9917.11048.16
over 50 years ago7.1164.22015.41062.5551.25140.43
total200.11229.81215.31349.01135.821130.01

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157840/144219

NFI2

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 NFI2
state 1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years) %± %± %± %± %± %± %±
inside perimetern/a9.71.610.91.313.31.712.51.612.71.611.31.311.70.6
less than 10 years ago42.92.738.22.032.92.317.91.828.62.210.31.227.40.8
11-20 years ago21.92.322.61.723.02.112.91.621.11.99.61.218.00.7
21-30 years ago8.21.512.41.310.61.512.71.69.81.48.51.110.40.6
31-40 years ago5.51.34.90.97.01.312.71.68.21.39.21.27.90.5
41-50 years ago3.61.03.50.74.11.09.41.44.81.013.31.46.80.5
over 50 years ago8.21.57.61.19.21.421.92.014.81.737.81.917.80.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimetern/a11.80.713.31.516.22.115.32.812.01.813.02.812.60.6
less than 10 years ago57.21.135.12.136.92.720.13.128.22.510.92.646.00.8
11-20 years ago20.80.923.51.921.32.314.62.820.42.212.32.720.60.7
21-30 years ago5.80.59.01.38.31.512.22.68.41.57.52.27.10.4
31-40 years ago2.00.35.01.02.80.98.02.16.01.39.62.43.50.3
41-50 years ago0.70.23.40.83.71.06.11.93.31.09.52.42.20.2
over 50 years ago1.70.310.61.410.81.723.63.321.82.337.34.08.10.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a11.50.611.91.014.61.313.31.412.41.211.61.212.20.4
less than 10 years ago55.21.036.81.534.61.818.51.628.41.610.41.137.70.6
11-20 years ago21.00.823.01.322.31.513.41.420.81.510.11.119.50.5
21-30 years ago6.10.510.90.99.61.112.61.39.21.08.31.08.60.3
31-40 years ago2.50.35.00.75.10.811.41.37.20.99.21.05.40.3
41-50 years ago1.10.23.40.53.90.78.51.14.10.712.61.24.20.2
over 50 years ago2.60.39.00.99.91.122.31.717.81.437.71.712.40.4
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 #157841/144220

NFI2

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 NFI2
state 1993/95
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 perimetern/a5.71811.9129.5139.4139.81312.41258.75
less than 10 years ago25.1841.9623.4813.51121.9811.312137.23
11-20 years ago12.81224.8816.3109.81316.21010.61390.54
21-30 years ago4.81913.6117.5159.6137.5159.31352.46
31-40 years ago3.2245.4185.0189.6136.31610.11339.56
41-50 years ago2.1293.8222.9247.1153.72214.61034.27
over 50 years ago4.8198.3156.51616.51011.31241.6689.14
total58.65109.7371.1475.5376.64109.93501.51
outside of perimetern/a43.7611.9129.0144.3207.0163.42379.25
less than 10 years ago212.4231.6720.695.61716.4102.825289.42
11-20 years ago77.3421.1911.9124.12011.9123.223129.53
21-30 years ago21.698.1154.6193.4224.9191.93044.56
31-40 years ago7.5154.5201.5332.2283.5222.52721.79
41-50 years ago2.5273.1242.1291.7311.9302.52713.711
over 50 years ago6.4179.6146.0176.61612.7119.71350.96
total371.4190.0455.8527.8758.2525.98629.01
totaln/a49.4623.9818.5913.71116.71015.710137.93
less than 10 years ago237.6273.6444.0519.1938.3614.111426.62
11-20 years ago90.2445.9628.3713.81128.0713.811220.03
21-30 years ago26.4821.7912.21113.01112.41111.31296.94
31-40 years ago10.7139.9136.51611.8119.71312.51161.25
41-50 years ago4.6206.9165.0188.8135.61717.11047.96
over 50 years ago11.21217.91012.61123.1824.0851.25140.03
total430.01199.71127.02103.32134.82135.821130.51

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157842/144221

NFI2

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 NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juran/a8.82.111.41.210.91.1
less than 10 years ago39.63.648.91.946.91.7
11-20 years ago21.43.023.71.623.21.4
21-30 years ago8.82.110.21.29.91.0
31-40 years ago6.61.82.40.63.30.6
41-50 years ago4.91.60.40.31.40.4
over 50 years ago9.92.23.00.74.40.7
total100.0.100.0.100.0.
Eastern Juran/a7.14.910.92.110.51.9
less than 10 years ago25.08.255.13.451.73.2
11-20 years ago39.39.224.92.926.52.8
21-30 years ago14.36.63.21.24.41.3
31-40 years ago10.75.94.11.44.91.4
41-50 years ago3.63.51.40.81.60.8
over 50 years ago..0.50.50.40.4
total100.0.100.0.100.0.
Western Plateaun/a16.76.813.92.214.22.1
less than 10 years ago46.79.149.83.249.43.0
11-20 years ago6.74.621.62.620.02.4
21-30 years ago6.74.65.71.55.81.4
31-40 years ago3.33.34.11.34.01.2
41-50 years ago..2.00.91.80.8
over 50 years ago20.07.32.91.14.71.3
total100.0.100.0.100.0.
Central Plateaun/a10.94.212.91.812.61.6
less than 10 years ago49.16.763.62.561.62.4
11-20 years ago27.36.019.02.120.12.0
21-30 years ago5.53.12.80.93.20.9
31-40 years ago1.81.80.60.40.70.4
41-50 years ago1.81.80.60.40.70.4
over 50 years ago3.62.50.60.41.00.5
total100.0.100.0.100.0.
Eastern Plateaun/a8.84.910.91.310.81.2
less than 10 years ago61.88.366.71.966.51.9
11-20 years ago14.76.116.81.516.71.5
21-30 years ago5.94.03.60.83.70.8
31-40 years ago2.92.90.80.41.00.4
41-50 years ago2.92.90.20.20.30.2
over 50 years ago2.92.91.00.41.10.4
total100.0.100.0.100.0.
Western Pre-Alpsn/a11.02.613.73.512.12.1
less than 10 years ago31.03.831.64.831.23.0
11-20 years ago22.83.522.14.322.52.7
21-30 years ago18.63.210.53.215.42.3
31-40 years ago3.41.57.42.75.01.4
41-50 years ago2.81.45.32.33.81.2
over 50 years ago10.32.59.53.010.01.9
total100.0.100.0.100.0.
Central Pre-Alpsn/a11.21.914.32.012.81.4
less than 10 years ago46.83.037.82.842.12.1
11-20 years ago21.92.527.22.624.71.8
21-30 years ago9.31.87.51.58.31.2
31-40 years ago3.71.23.11.03.40.8
41-50 years ago1.90.81.70.81.80.6
over 50 years ago5.21.48.51.66.91.1
total100.0.100.0.100.0.
Eastern Pre-Alpsn/a14.22.413.82.514.01.7
less than 10 years ago31.73.241.83.536.52.4
11-20 years ago28.53.124.53.126.62.2
21-30 years ago10.12.08.12.09.21.4
31-40 years ago5.51.52.01.03.90.9
41-50 years ago4.11.34.11.44.11.0
over 50 years ago6.01.65.61.65.81.1
total100.0.100.0.100.0.
Northwestern Alpsn/a10.42.210.12.910.31.7
less than 10 years ago31.63.431.34.431.52.7
11-20 years ago23.33.014.73.420.22.3
21-30 years ago11.92.311.93.111.91.9
31-40 years ago7.81.98.22.67.91.6
41-50 years ago6.21.76.42.36.31.4
over 50 years ago8.82.017.43.611.91.9
total100.0.100.0.100.0.
Central Alpsn/a13.03.821.14.816.93.1
less than 10 years ago37.65.532.45.635.13.9
11-20 years ago10.43.512.74.011.52.6
21-30 years ago13.03.811.33.812.22.7
31-40 years ago7.83.12.82.05.41.9
41-50 years ago1.31.32.82.02.01.2
over 50 years ago16.94.316.94.516.93.1
total100.0.100.0.100.0.
Northeastern Alpsn/a11.83.017.95.113.82.6
less than 10 years ago31.94.326.45.930.13.5
11-20 years ago21.13.720.95.421.03.1
21-30 years ago10.02.85.22.98.52.1
31-40 years ago9.22.65.22.97.92.0
41-50 years ago5.92.23.52.45.11.7
over 50 years ago10.12.820.95.413.62.6
total100.0.100.0.100.0.
Southwestern Alpsn/a12.51.615.32.813.31.4
less than 10 years ago17.91.820.13.118.51.6
11-20 years ago12.91.614.62.813.41.4
21-30 years ago12.71.612.22.612.61.3
31-40 years ago12.71.68.02.111.41.3
41-50 years ago9.41.46.11.98.51.1
over 50 years ago21.92.023.63.322.31.7
total100.0.100.0.100.0.
Southeastern Alpsn/a12.71.612.01.812.41.2
less than 10 years ago28.62.228.22.528.41.6
11-20 years ago21.11.920.42.220.81.5
21-30 years ago9.81.48.41.59.21.0
31-40 years ago8.21.36.01.37.20.9
41-50 years ago4.81.03.31.04.10.7
over 50 years ago14.81.721.82.317.81.4
total100.0.100.0.100.0.
Southern Alpsn/a11.31.313.02.811.61.2
less than 10 years ago10.31.210.92.610.41.1
11-20 years ago9.61.212.32.710.11.1
21-30 years ago8.51.17.52.28.31.0
31-40 years ago9.21.29.62.49.21.0
41-50 years ago13.31.49.52.412.61.2
over 50 years ago37.81.937.34.037.71.7
total100.0.100.0.100.0.
Switzerlandn/a11.70.612.60.612.20.4
less than 10 years ago27.30.846.00.837.70.6
11-20 years ago18.10.720.60.719.50.5
21-30 years ago10.50.67.10.48.60.3
31-40 years ago7.90.53.50.35.40.3
41-50 years ago6.80.52.20.24.20.2
over 50 years ago17.80.78.10.412.40.4
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157843/144222

NFI2

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 NFI2
state 1993/95
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiontime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %
Western Juran/a2.82513.71116.610
less than 10 years ago12.81158.8471.64
11-20 years ago6.91628.5735.46
21-30 years ago2.82512.31215.110
31-40 years ago2.1292.8255.019
41-50 years ago1.6330.5582.129
over 50 years ago3.2233.6226.816
total32.47120.22152.61
Eastern Juran/a0.4714.6205.019
less than 10 years ago1.43723.2724.67
11-20 years ago2.13010.51212.611
21-30 years ago0.8501.3382.130
31-40 years ago0.6581.7332.328
41-50 years ago0.21000.6580.850
over 50 years ago..0.21000.2100
total5.41842.1347.52
Western Plateaun/a0.9446.1167.015
less than 10 years ago2.52622.0724.67
11-20 years ago0.4719.6139.912
21-30 years ago0.4712.5262.924
31-40 years ago0.21001.8312.030
41-50 years ago..0.9440.944
over 50 years ago1.1401.3372.327
total5.41744.3349.73
Central Plateaun/a1.0417.7148.713
less than 10 years ago4.51938.1542.64
11-20 years ago2.52511.41113.910
21-30 years ago0.5581.7312.227
31-40 years ago0.21000.3710.558
41-50 years ago0.21000.3710.558
over 50 years ago0.3710.3710.750
total9.21359.9369.12
Eastern Plateaun/a0.55811.41211.912
less than 10 years ago3.72170.0373.73
11-20 years ago0.94517.6918.59
21-30 years ago0.4713.7214.121
31-40 years ago0.21000.9451.141
41-50 years ago0.21000.21000.471
over 50 years ago0.21001.1411.238
total6.117104.92111.02
Western Pre-Alpsn/a2.9242.3275.218
less than 10 years ago8.1145.41713.510
11-20 years ago5.9163.8219.712
21-30 years ago4.9181.8316.715
31-40 years ago0.9441.3372.228
41-50 years ago0.7500.9441.633
over 50 years ago2.7251.6334.320
total26.1617.1943.23
Central Pre-Alpsn/a5.3187.51512.811
less than 10 years ago22.4819.7942.15
11-20 years ago10.51214.21124.78
21-30 years ago4.4203.9218.414
31-40 years ago1.8311.6333.423
41-50 years ago0.9450.9451.831
over 50 years ago2.5264.4206.916
total47.8552.34100.12
Eastern Pre-Alpsn/a5.4174.71910.112
less than 10 years ago12.01114.31026.37
11-20 years ago10.8128.41419.19
21-30 years ago3.8212.8256.616
31-40 years ago2.1290.7502.825
41-50 years ago1.6331.4353.024
over 50 years ago2.3271.9304.220
total37.9534.1672.02
Northwestern Alpsn/a3.7222.0305.817
less than 10 years ago11.4126.31717.79
11-20 years ago8.4143.02511.312
21-30 years ago4.3202.4276.716
31-40 years ago2.8251.7334.520
41-50 years ago2.2291.3383.523
over 50 years ago3.2243.5236.716
total35.9520.2956.13
Central Alpsn/a1.8312.7254.519
less than 10 years ago5.2174.2209.412
11-20 years ago1.4351.6333.123
21-30 years ago1.8311.4353.323
31-40 years ago1.1400.4711.435
41-50 years ago0.21000.4710.557
over 50 years ago2.4272.2284.519
total13.9912.81026.85
Northeastern Alpsn/a2.4261.8314.220
less than 10 years ago6.5152.6259.112
11-20 years ago4.3192.0286.315
21-30 years ago2.0280.5572.625
31-40 years ago1.9300.5572.426
41-50 years ago1.2370.3711.533
over 50 years ago2.1282.0284.120
total20.379.81230.15
Southwestern Alpsn/a9.4134.32013.711
less than 10 years ago13.5115.61719.19
11-20 years ago9.8134.12013.811
21-30 years ago9.6133.42213.011
31-40 years ago9.6132.22811.811
41-50 years ago7.1151.7318.813
over 50 years ago16.5106.61623.18
total75.5327.87103.32
Southeastern Alpsn/a9.8137.01616.710
less than 10 years ago21.9816.41038.36
11-20 years ago16.21011.91228.07
21-30 years ago7.5154.91912.411
31-40 years ago6.3163.5229.713
41-50 years ago3.7221.9305.617
over 50 years ago11.31212.71124.08
total76.6458.25134.82
Southern Alpsn/a12.4123.42315.710
less than 10 years ago11.3122.82514.111
11-20 years ago10.6133.22313.811
21-30 years ago9.3131.93011.312
31-40 years ago10.1132.52712.511
41-50 years ago14.6102.52717.110
over 50 years ago41.669.71351.25
total109.9325.98135.82
Switzerlandn/a58.8579.15137.93
less than 10 years ago137.33289.32426.62
11-20 years ago90.74129.73220.43
21-30 years ago52.6644.6697.24
31-40 years ago39.7621.9961.65
41-50 years ago34.3713.81148.06
over 50 years ago89.2451.16140.33
total502.51629.511132.01

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157844/144223

NFI2

forest area: protection forest perimeter SilvaProtect · degree of mixture · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of mixture %± %± %± %± %± %± %±
inside perimetern/a....2.40.51.50.61.70.70.60.31.50.2
pure conifer forest11.12.117.02.948.71.578.12.188.91.733.11.949.40.9
mixed conifer forest33.33.241.23.824.51.37.51.32.80.98.81.117.70.7
mixed broadleaf forest29.63.120.63.112.91.04.51.02.80.96.11.010.80.6
pure broadleaf forest25.93.021.23.211.41.08.51.43.71.051.32.020.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimetern/a0.20.20.30.23.10.60.70.71.10.6..1.00.2
pure conifer forest29.61.632.71.357.61.769.73.884.72.132.63.843.20.8
mixed conifer forest28.31.526.71.220.31.48.22.33.51.110.32.422.40.7
mixed broadleaf forest20.51.418.51.19.81.09.02.43.91.25.81.914.90.6
pure broadleaf forest21.31.421.81.29.31.012.42.76.71.551.34.018.60.6
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a0.20.10.30.12.70.41.30.51.40.50.50.31.20.1
pure conifer forest25.91.330.91.252.51.175.91.887.01.333.01.745.90.6
mixed conifer forest29.31.428.41.222.71.07.71.13.20.79.11.020.30.5
mixed broadleaf forest22.41.318.71.011.60.75.71.03.30.76.10.913.10.4
pure broadleaf forest22.31.321.81.110.50.79.51.35.10.951.31.819.50.5
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 #157845/144224

NFI2

forest area: protection forest perimeter SilvaProtect · degree of mixture · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid: terrestrial grid NFI2
state 1993/95
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of mixture1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetern/a....4.6201.0411.0410.7507.415
pure conifer forest4.3204.91994.1453.1454.4437.16248.12
mixed conifer forest12.91112.01247.465.1181.7319.91389.14
mixed broadleaf forest11.5126.01725.083.1231.7316.91654.26
pure broadleaf forest10.1136.21722.195.8172.32857.65104.04
total38.8629.17193.2268.1361.24112.23502.71
outside of perimetern/a0.4710.7504.5200.21000.558..6.217
pure conifer forest45.8674.3483.4417.2941.669.014271.32
mixed conifer forest43.8660.7529.482.0291.7312.825140.63
mixed broadleaf forest31.8742.0614.2112.2281.9301.63393.74
pure broadleaf forest33.0749.6513.5113.1233.32314.111116.74
total154.82227.41144.8324.7849.1527.67628.41
totaln/a0.4710.7509.1141.2381.6330.75013.611
pure conifer forest50.1579.34177.5270.3396.0346.15519.41
mixed conifer forest56.8572.7476.847.1153.52212.711229.62
mixed broadleaf forest43.3648.0639.165.3183.7228.514147.93
pure broadleaf forest43.1655.8535.678.8135.61771.74220.63
total193.61256.61338.0192.72110.42139.821131.11

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #157846/144225
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