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NFI4b

forest area: protection forest perimeter SilvaProtect · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical0.7717.9216.42310.3186.0247.02238.39
less stable20.41355.2736.2936.3830.61060.96239.63
stable34.71049.8834.2933.3941.9849.67243.43
total55.88112.9476.8579.9478.45117.53521.42
outside of perimetercritical9.3196.9233.1335.5255.2253.43133.410
less stable130.6446.2826.41110.71725.01113.416252.23
stable238.3343.3830.11018.31340.3819.513389.72
total378.2196.3559.7634.5970.4636.29675.32
totalcritical10.01914.8159.51915.81411.21710.41871.77
less stable151.04101.3562.6647.0755.6774.35491.82
stable273.0293.1564.3651.6782.1569.16633.12
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161353/147732

NFI4b

forest area: protection forest perimeter SilvaProtect · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionstand stability %± %± %±
Western Juracritical1.11.12.60.92.30.7
less stable32.94.929.22.530.02.2
stable66.05.068.12.567.72.2
total100.0.100.0.100.0.
Eastern Juracritical..1.91.31.61.2
less stable42.913.335.24.636.14.3
stable57.113.262.94.762.24.4
total100.0.100.0.100.0.
Western Plateaucritical..2.81.62.51.5
less stable25.312.735.74.634.74.4
stable74.712.761.54.762.84.5
total100.0.100.0.100.0.
Central Plateaucritical..3.01.22.71.1
less stable36.410.338.93.538.73.3
stable63.610.358.13.558.63.3
total100.0.100.0.100.0.
Eastern Plateaucritical5.95.72.00.82.20.8
less stable58.811.937.02.838.22.7
stable35.311.661.02.859.62.8
total100.0.100.0.100.0.
Western Pre-Alpscritical4.22.47.93.85.72.1
less stable45.75.951.07.047.94.5
stable50.15.941.16.946.44.5
total100.0.100.0.100.0.
Central Pre-Alpscritical9.92.67.32.18.51.7
less stable48.14.444.74.146.33.0
stable42.04.348.04.145.23.0
total100.0.100.0.100.0.
Eastern Pre-Alpscritical5.32.14.12.04.71.5
less stable43.94.742.35.043.13.4
stable50.94.753.65.152.13.4
total100.0.100.0.100.0.
Northwestern Alpscritical5.52.26.02.95.71.7
less stable51.84.853.06.252.23.8
stable42.74.741.06.142.13.7
total100.0.100.0.100.0.
Central Alpscritical11.54.97.64.29.63.2
less stable45.57.545.07.945.25.5
stable43.07.547.47.945.15.5
total100.0.100.0.100.0.
Northeastern Alpscritical11.14.06.14.29.43.0
less stable54.06.348.58.752.15.1
stable34.96.045.58.738.65.0
total100.0.100.0.100.0.
Southwestern Alpscritical12.92.216.03.713.81.9
less stable45.43.331.04.641.12.7
stable41.73.253.05.045.12.7
total100.0.100.0.100.0.
Southeastern Alpscritical7.61.87.41.87.51.3
less stable39.03.335.53.437.32.4
stable53.43.357.23.555.22.4
total100.0.100.0.100.0.
Southern Alpscritical6.01.39.32.86.81.2
less stable51.82.737.04.848.32.4
stable42.22.753.74.944.92.4
total100.0.100.0.100.0.
Switzerlandcritical7.30.74.90.56.00.4
less stable45.91.337.31.141.10.8
stable46.71.357.81.153.00.8
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161354/147733

NFI4b

forest area: protection forest perimeter SilvaProtect · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juracritical0.41003.2333.631
less stable10.71835.7946.48
stable21.41283.35104.74
total32.59122.23154.72
Eastern Juracritical..0.8700.870
less stable2.44015.01417.412
stable3.23426.8830.07
total5.52542.7448.22
Western Plateaucritical..1.2571.257
less stable1.25715.71416.913
stable3.63327.0930.68
total4.92843.9448.73
Central Plateaucritical..1.9401.940
less stable2.53524.2926.79
stable4.32636.2740.56
total6.82062.3369.12
Eastern Plateaucritical0.41002.1412.537
less stable3.63139.7843.37
stable2.14165.4567.65
total6.124107.32113.32
Western Pre-Alpscritical1.1571.5492.637
less stable12.2159.61821.810
stable13.3147.72121.110
total26.6818.81245.54
Central Pre-Alpscritical4.7273.9308.620
less stable22.61124.01146.67
stable19.71225.81145.67
total47.0753.86100.82
Eastern Pre-Alpscritical2.1401.4503.631
less stable17.91314.61432.58
stable20.71118.61339.37
total40.7734.6875.33
Northwestern Alpscritical2.1401.4503.631
less stable20.41112.51632.98
stable16.8139.71826.510
total39.3723.61162.94
Central Alpscritical1.7441.1582.835
less stable6.9206.32213.214
stable6.5216.62213.114
total15.21213.91429.17
Northeastern Alpscritical2.5370.7703.232
less stable12.2155.72317.911
stable7.9205.42413.314
total22.6911.81534.45
Southwestern Alpscritical10.3185.52515.814
less stable36.3810.71747.07
stable33.3918.31351.67
total79.9434.59114.43
Southeastern Alpscritical6.0245.22511.217
less stable30.61025.01155.67
stable41.9840.3882.15
total78.4570.46148.92
Southern Alpscritical7.0223.43110.418
less stable60.9613.41674.35
stable49.6719.51369.16
total117.5336.29153.82
Switzerlandcritical38.3933.41071.77
less stable240.33252.23492.52
stable244.53390.52634.92
total523.12676.121199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161355/147734

NFI4b

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:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....1.80.61.40.80.60.61.20.61.20.3
21-40%0.90.9..4.30.95.81.69.02.13.00.94.30.5
41-60%2.81.61.31.314.21.529.13.135.43.613.01.817.01.0
61-80%22.24.022.84.729.91.935.23.334.93.628.12.429.81.2
over 80%74.14.276.04.849.92.128.53.120.23.054.72.747.71.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%2.10.71.20.40.90.41.21.23.51.43.71.81.70.3
21-40%1.80.62.00.58.61.316.34.017.02.912.23.26.10.5
41-60%9.91.45.50.921.82.039.65.330.33.527.24.315.30.8
61-80%25.72.120.71.633.92.229.04.937.03.725.94.227.11.0
over 80%60.52.370.51.834.82.313.93.712.22.531.04.549.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.70.51.10.41.40.41.30.72.00.71.80.61.50.2
21-40%1.70.51.80.56.20.88.81.712.91.85.21.15.30.4
41-60%8.51.25.10.817.61.232.12.732.92.516.41.816.00.6
61-80%25.01.920.91.531.71.533.42.735.92.627.62.128.30.8
over 80%63.22.171.11.743.21.624.32.516.32.049.12.448.90.8
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 #161356/147735

NFI4b

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:
state 2009/13
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%....3.5311.0580.41001.4506.323
21-40%0.4100..8.6204.1295.7243.63122.312
41-60%1.1580.410028.51120.91222.31115.71588.86
61-80%8.6206.42359.9725.31021.91233.89156.04
over 80%28.81021.212100.1520.51212.71665.86249.23
total38.9927.911200.7371.9462.95120.33522.62
outside of perimeter0-20%3.3332.8351.4500.31002.1411.45011.418
21-40%2.9354.62813.7164.82610.2184.62840.89
41-60%15.51512.71634.71011.71718.21310.318103.26
61-80%40.4947.8854.088.61922.2129.818182.84
over 80%95.15162.7355.574.1287.32111.717336.42
total157.13230.62159.3429.61060.1637.89674.52
total0-20%3.3332.8355.0271.4502.4382.83517.714
21-40%3.3334.62822.3139.01915.9148.22163.27
41-60%16.61413.11663.2732.6940.5826.011192.04
61-80%49.0854.17114.0533.9944.2843.68338.83
over 80%123.93183.93155.5424.61120.11277.55585.62
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161357/147736

NFI4b

forest area: protection forest perimeter SilvaProtect · degree of cover (aerial photo, 5 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantondegree of cover (aerial photo, 5 classes) %± %± %±
AG0-20%..1.71.21.61.2
21-40%..4.21.84.11.8
41-60%..5.02.04.92.0
61-80%33.327.313.43.113.93.1
over 80%66.727.375.64.075.43.9
total100.0.100.0.100.0.
AI0-20%......
21-40%......
41-60%10.09.819.616.913.78.9
61-80%40.015.8..24.711.0
over 80%50.016.180.416.961.712.5
total100.0.100.0.100.0.
AR0-20%......
21-40%......
41-60%10.09.7..3.83.8
61-80%40.015.824.811.030.69.2
over 80%50.016.175.211.065.69.5
total100.0.100.0.100.0.
BE0-20%2.61.11.80.82.20.7
21-40%6.21.62.50.94.20.9
41-60%11.62.111.11.911.31.4
61-80%30.03.132.32.831.32.1
over 80%49.53.352.23.051.02.2
total100.0.100.0.100.0.
BL/BS0-20%..2.52.52.02.0
21-40%......
41-60%9.18.72.52.53.92.8
61-80%9.18.77.54.27.93.8
over 80%81.811.687.45.386.24.9
total100.0.100.0.100.0.
FR0-20%......
21-40%2.02.05.72.84.21.9
41-60%14.95.216.04.415.63.4
61-80%38.37.123.25.129.34.2
over 80%44.77.355.16.050.94.7
total100.0.100.0.100.0.
GE0-20%......
21-40%......
41-60%..14.814.614.814.6
61-80%..14.814.614.814.6
over 80%..70.518.770.518.7
total..100.0.100.0.
GL0-20%3.63.5..2.12.1
21-40%3.63.520.89.310.54.5
41-60%14.06.610.67.212.64.9
61-80%10.75.921.29.515.05.3
over 80%68.18.847.311.659.77.2
total100.0.100.0.100.0.
GR0-20%0.70.53.51.21.90.6
21-40%6.61.514.42.310.01.3
41-60%32.52.833.53.232.92.1
61-80%34.62.834.43.234.52.1
over 80%25.62.614.22.320.61.8
total100.0.100.0.100.0.
JU0-20%..1.71.71.11.1
21-40%......
41-60%..12.14.38.02.9
61-80%20.07.317.15.018.14.1
over 80%80.07.269.06.172.84.8
total100.0.100.0.100.0.
LU0-20%4.54.51.91.32.31.3
21-40%..0.90.90.80.8
41-60%13.67.315.83.515.43.2
61-80%18.28.339.54.835.94.2
over 80%63.610.341.94.845.64.4
total100.0.100.0.100.0.
NE0-20%..1.71.61.41.4
21-40%......
41-60%7.16.99.53.49.13.1
61-80%42.913.334.85.636.15.2
over 80%50.013.454.15.953.45.4
total100.0.100.0.100.0.
NW0-20%......
21-40%......
41-60%..16.711.010.06.9
61-80%12.511.933.313.925.09.9
over 80%87.511.550.014.865.010.9
total100.0.100.0.100.0.
OW0-20%..3.43.31.71.6
21-40%..10.65.75.22.9
41-60%10.55.822.48.116.35.0
61-80%50.09.529.98.940.26.7
over 80%39.59.333.79.236.76.5
total100.0.100.0.100.0.
SG0-20%..1.41.40.60.6
21-40%3.31.97.33.25.01.7
41-60%10.03.222.05.015.22.9
61-80%23.34.525.05.324.13.4
over 80%63.45.144.26.055.14.0
total100.0.100.0.100.0.
SH0-20%......
21-40%......
41-60%..2.92.92.82.8
61-80%..26.57.725.07.3
over 80%100.0.70.67.972.27.6
total100.0.100.0.100.0.
SO0-20%..1.31.31.21.2
21-40%..1.31.31.21.2
41-60%..2.51.82.41.7
61-80%..16.54.215.33.9
over 80%100.0.78.54.680.04.4
total100.0.100.0.100.0.
SZ0-20%......
21-40%4.53.213.65.68.73.1
41-60%6.83.832.47.718.54.3
61-80%22.86.421.66.822.24.6
over 80%65.97.132.47.750.65.6
total100.0.100.0.100.0.
TG0-20%..3.22.22.81.9
21-40%..1.61.61.41.4
41-60%..3.22.22.81.9
61-80%20.012.722.45.322.14.9
over 80%80.012.669.65.971.15.4
total100.0.100.0.100.0.
TI0-20%1.10.62.61.81.50.6
21-40%3.01.115.04.05.81.3
41-60%9.11.821.14.611.81.7
61-80%26.62.727.45.026.82.4
over 80%60.13.033.95.354.12.7
total100.0.100.0.100.0.
UR0-20%3.23.2..1.81.8
21-40%6.44.48.45.77.33.5
41-60%19.37.124.68.721.75.6
61-80%22.57.539.79.830.26.2
over 80%48.69.027.48.939.06.6
total100.0.100.0.100.0.
VD0-20%..1.91.01.50.8
21-40%1.81.75.21.54.51.3
41-60%8.83.813.42.412.42.0
61-80%26.35.828.43.127.92.8
over 80%63.26.451.13.553.73.1
total100.0.100.0.100.0.
VS0-20%1.30.71.01.01.20.6
21-40%5.21.518.13.99.11.6
41-60%27.12.934.04.729.22.5
61-80%35.23.129.94.633.62.6
over 80%31.33.016.93.727.02.4
total100.0.100.0.100.0.
ZG0-20%11.110.8..6.86.8
21-40%......
41-60%11.110.817.216.213.59.2
61-80%22.214.313.812.718.910.2
over 80%55.617.068.918.960.813.0
total100.0.100.0.100.0.
ZH0-20%......
21-40%..2.81.42.71.3
41-60%..4.21.74.11.6
61-80%50.025.121.73.522.53.5
over 80%50.025.171.33.870.73.8
total100.0.100.0.100.0.
Switzerland0-20%1.20.31.70.31.50.2
21-40%4.20.56.10.55.30.4
41-60%16.91.015.20.815.90.6
61-80%29.81.226.71.028.10.8
over 80%47.91.350.31.149.30.8
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161358/147737

NFI4b

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:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
AG0-20%..0.8700.870
21-40%..2.0442.044
41-60%..2.4402.440
61-80%0.41006.4236.823
over 80%0.87036.2637.06
total1.25747.9349.12
AI0-20%......
21-40%......
41-60%0.31000.41000.771
61-80%1.345..1.345
over 80%1.6391.6393.222
total3.2212.0375.212
AR0-20%......
21-40%......
41-60%0.3100..0.3100
61-80%1.3471.3472.630
over 80%1.6413.9235.516
total3.2255.2178.46
BE0-20%2.1411.8453.830
21-40%4.8272.4387.222
41-60%9.01910.61819.613
61-80%23.21130.91054.27
over 80%38.3850.0788.35
total77.4595.74173.12
BL/BS0-20%..0.41000.4100
21-40%......
41-60%0.41000.41000.870
61-80%0.41001.2571.649
over 80%3.73114.21117.97
total4.52716.2920.75
FR0-20%......
21-40%0.41001.5501.844
41-60%2.6374.1296.722
61-80%6.7226.02412.715
over 80%7.92014.21422.010
total17.61225.7843.33
GE0-20%......
21-40%......
41-60%..0.51000.5100
61-80%..0.51000.5100
over 80%..2.2342.234
total..3.1203.120
GL0-20%0.4100..0.4100
21-40%0.41001.5491.944
41-60%1.5490.8702.340
61-80%1.2571.5492.736
over 80%7.3193.43110.714
total10.7147.22018.07
GR0-20%0.7712.8353.432
21-40%6.62311.21717.814
41-60%32.8926.11158.97
61-80%35.0926.91161.86
over 80%25.81111.11736.99
total100.9478.06179.02
JU0-20%..0.41000.4100
21-40%......
41-60%..2.7372.737
61-80%2.3403.9306.223
over 80%9.41815.51224.97
total11.71522.5834.23
LU0-20%0.31000.6700.957
21-40%..0.31000.3100
41-60%0.9575.3236.321
61-80%1.34913.41314.613
over 80%4.42514.21218.610
total6.92033.8540.73
NE0-20%..0.41000.4100
21-40%......
41-60%0.31002.2372.634
61-80%1.9408.21810.216
over 80%2.23712.81215.110
total4.52523.7728.24
NW0-20%......
21-40%......
41-60%..0.8690.869
61-80%0.41001.5461.940
over 80%2.7322.3365.019
total3.1294.6207.78
OW0-20%..0.31000.3100
21-40%..1.1581.158
41-60%1.1572.2393.331
61-80%5.2243.0338.217
over 80%4.1273.4317.518
total10.41410.01520.45
SG0-20%..0.41000.4100
21-40%1.1581.8442.935
41-60%3.2335.4258.719
61-80%7.6216.12313.714
over 80%20.61110.81731.58
total32.5824.61057.14
SH0-20%......
21-40%......
41-60%..0.41000.4100
61-80%..3.2293.229
over 80%0.7708.5129.311
total0.77012.1512.83
SO0-20%..0.41000.4100
21-40%..0.41000.4100
41-60%..0.8700.870
61-80%..4.9264.926
over 80%2.34023.5725.76
total2.34029.9532.23
SZ0-20%......
21-40%0.7701.8442.537
41-60%1.1574.3275.424
61-80%3.6302.9346.522
over 80%10.5154.32714.811
total15.91113.41329.34
TG0-20%..0.6700.670
21-40%..0.31000.3100
41-60%..0.6700.670
61-80%0.6704.2244.822
over 80%2.43413.01115.49
total3.03018.7621.74
TI0-20%1.1580.7711.845
21-40%2.9354.3297.122
41-60%8.6206.02414.615
61-80%25.4117.82133.19
over 80%57.369.61966.95
total95.2428.410123.62
UR0-20%0.3100..0.3100
21-40%0.7700.7711.450
41-60%2.0392.1404.127
61-80%2.3363.3305.722
over 80%5.0242.3367.318
total10.3148.41818.78
VD0-20%..1.5501.550
21-40%0.41004.1304.529
41-60%1.94410.51812.417
61-80%5.72522.31228.010
over 80%13.71640.2853.96
total21.61278.74100.32
VS0-20%1.0580.31001.450
21-40%4.2296.32310.418
41-60%21.61211.71733.49
61-80%28.11010.31838.48
over 80%25.0115.82430.89
total79.9434.59114.43
ZG0-20%0.4100..0.4100
21-40%......
41-60%0.41000.41000.968
61-80%0.9680.31001.256
over 80%2.1371.7443.921
total3.9212.5356.37
ZH0-20%......
21-40%..1.4491.449
41-60%..2.1402.140
61-80%0.77010.91611.616
over 80%0.77036.0636.76
total1.44950.4351.82
Switzerland0-20%6.32411.41817.714
21-40%22.11241.0963.17
41-60%88.26103.06191.24
61-80%155.44181.14336.53
over 80%250.03340.92590.92
total522.12677.421199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161359/147738

NFI4b

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:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
inside perimeter0-20%....0.90.51.60.51.20.61.20.3
21-40%0.90.9..3.81.16.00.93.00.94.20.5
41-60%2.81.62.01.910.71.725.71.712.41.816.91.0
61-80%21.04.021.65.831.62.631.91.828.32.529.91.2
over 80%75.34.276.55.953.02.834.71.855.12.747.81.3
total100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%2.00.71.30.51.30.71.80.63.01.71.70.3
21-40%1.80.62.10.64.41.215.61.712.63.36.00.5
41-60%8.01.36.31.019.52.330.22.225.34.315.30.8
61-80%24.02.021.81.733.62.733.12.226.94.427.01.0
over 80%64.22.368.51.941.32.919.31.932.24.650.01.1
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.60.51.20.41.10.41.70.41.60.61.50.2
21-40%1.60.52.00.54.10.89.80.95.31.15.30.4
41-60%7.01.15.90.915.01.427.51.315.41.716.00.6
61-80%23.41.821.71.632.51.932.41.428.02.228.30.8
over 80%66.32.069.11.847.32.028.61.449.72.449.00.8
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 #161360/147739

NFI4b

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:
state 2009/13
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%....1.1583.8301.4506.324
21-40%0.4100..4.32913.9163.63122.112
41-60%1.1580.410012.31759.9714.51588.26
61-80%8.0213.93036.0974.4633.29155.64
over 80%28.81013.71660.6780.9664.86248.83
total38.3917.914114.34233.03117.53521.02
outside of perimeter0-20%3.3332.8351.4502.8351.15811.418
21-40%2.9354.6274.72823.9124.62840.79
41-60%13.11613.41620.91346.489.219103.06
61-80%39.4946.4836.0950.889.818182.44
over 80%105.54146.2344.3829.61111.617337.32
total164.23213.42107.45153.5436.29674.82
total0-20%3.3332.8352.5386.6232.53817.814
21-40%3.3334.6279.02037.898.12162.87
41-60%14.21613.71633.110106.4523.712191.14
61-80%47.4850.3872.16125.2443.08338.03
over 80%134.43159.93104.94110.5576.45586.12
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161361/147740

NFI4b

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:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectdegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..2.20.81.30.81.30.70.40.41.20.61.20.3
21-40%0.60.64.81.23.81.35.21.57.61.83.00.94.30.5
41-60%2.61.313.41.911.62.227.12.934.53.212.41.817.01.0
61-80%21.13.332.62.724.32.935.23.134.63.228.32.529.91.2
over 80%75.63.447.02.858.93.331.33.022.92.855.12.747.61.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeter0-20%1.60.41.10.60.60.61.01.03.41.33.01.71.70.3
21-40%2.00.45.61.410.22.418.13.915.52.612.63.36.00.5
41-60%7.00.820.62.521.73.234.04.732.83.325.34.315.30.8
61-80%22.71.338.23.025.23.329.94.635.53.426.94.427.11.0
over 80%66.71.534.52.942.33.816.93.712.92.432.24.649.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.40.31.70.51.00.51.20.61.90.61.60.61.50.2
21-40%1.80.45.20.96.61.39.11.611.31.55.31.15.30.4
41-60%6.40.716.71.616.01.929.22.533.72.315.41.716.00.6
61-80%22.51.235.22.024.72.233.62.635.02.328.02.228.30.8
over 80%67.81.341.22.051.62.527.02.418.11.949.72.448.90.8
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 #161362/147741

NFI4b

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:
state 2009/13
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%..2.5381.0581.0580.41001.4506.423
21-40%0.41005.4262.9364.2296.0243.63122.412
41-60%1.45015.1158.92021.61227.11014.51588.86
61-80%11.81736.8918.71328.11027.11033.29155.74
over 80%42.2953.0745.2725.01117.91364.86248.23
total55.88112.9476.8579.9478.45117.53521.42
outside of perimeter0-20%6.1241.1580.41000.31002.4381.15811.418
21-40%7.5225.4266.1246.32310.9184.62840.89
41-60%26.51119.81313.01611.71723.1129.219103.36
61-80%85.9636.8915.01510.31825.0119.818182.84
over 80%252.2333.21025.2115.8249.11911.617337.12
total378.2196.3559.7634.5970.4636.29675.32
total0-20%6.1243.6311.4501.4502.8352.53817.714
21-40%7.92110.8189.02010.41816.9148.12163.27
41-60%27.91135.0921.91233.4950.2723.712192.04
61-80%97.7573.6633.7938.4852.1743.08338.53
over 80%294.4286.2570.4530.8927.01176.45585.32
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161363/147742

NFI4b

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:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.80.71.40.6
21-40%1.11.12.10.81.90.7
41-60%2.21.69.41.67.91.3
61-80%23.14.426.92.426.12.1
over 80%73.64.659.82.762.72.3
total100.0.100.0.100.0.
Eastern Jura0-20%..2.81.62.51.4
21-40%..0.90.90.80.8
41-60%7.16.93.71.84.11.8
61-80%7.16.914.83.414.03.2
over 80%85.79.377.74.078.73.7
total100.0.100.0.100.0.
Western Plateau0-20%..2.81.62.51.5
21-40%..1.91.31.71.2
41-60%..12.13.210.92.9
61-80%33.713.724.34.225.24.0
over 80%66.313.758.94.859.74.5
total100.0.100.0.100.0.
Central Plateau0-20%..1.50.91.30.8
21-40%..1.00.70.90.6
41-60%4.54.56.01.75.81.6
61-80%18.28.224.13.023.52.9
over 80%77.39.067.43.368.43.1
total100.0.100.0.100.0.
Eastern Plateau0-20%..0.70.50.60.4
21-40%..3.01.02.80.9
41-60%..4.31.24.11.1
61-80%17.69.319.32.319.22.2
over 80%82.49.272.72.673.22.5
total100.0.100.0.100.0.
Western Pre-Alps0-20%1.41.4..0.80.8
21-40%6.93.09.84.28.12.5
41-60%20.84.821.75.821.23.7
61-80%30.65.527.46.329.34.1
over 80%40.35.841.26.940.74.4
total100.0.100.0.100.0.
Central Pre-Alps0-20%0.80.82.01.11.40.7
21-40%3.11.52.71.32.91.0
41-60%8.42.420.03.314.62.1
61-80%36.64.241.34.039.12.9
over 80%51.14.434.03.942.02.9
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%0.90.91.01.00.90.7
21-40%2.61.54.12.03.31.2
41-60%7.02.417.53.911.82.2
61-80%26.34.124.74.425.63.0
over 80%63.24.552.65.158.33.4
total100.0.100.0.100.0.
Northwestern Alps0-20%4.52.0..2.81.3
21-40%5.52.29.13.56.81.9
41-60%14.63.421.25.017.12.8
61-80%29.14.339.36.032.93.5
over 80%46.34.730.45.740.33.7
total100.0.100.0.100.0.
Central Alps0-20%2.32.2..1.21.2
21-40%4.53.115.65.89.83.3
41-60%15.85.527.57.121.44.5
61-80%20.66.129.87.225.04.7
over 80%56.87.527.17.042.65.4
total100.0.100.0.100.0.
Northeastern Alps0-20%1.61.6..1.01.0
21-40%4.82.721.27.110.43.1
41-60%15.94.624.27.518.84.0
61-80%23.85.421.27.122.94.3
over 80%53.96.333.38.246.85.1
total100.0.100.0.100.0.
Southwestern Alps0-20%1.30.71.01.01.20.6
21-40%5.21.518.13.99.11.6
41-60%27.12.934.04.729.22.5
61-80%35.23.129.94.633.62.6
over 80%31.33.016.93.727.02.4
total100.0.100.0.100.0.
Southeastern Alps0-20%0.40.43.41.31.90.6
21-40%7.61.815.52.611.31.5
41-60%34.53.232.83.333.72.3
61-80%34.63.235.53.435.02.3
over 80%22.92.812.92.418.11.9
total100.0.100.0.100.0.
Southern Alps0-20%1.20.63.01.71.60.6
21-40%3.00.912.63.35.31.1
41-60%12.41.825.34.315.41.7
61-80%28.32.526.94.428.02.2
over 80%55.12.732.24.649.72.4
total100.0.100.0.100.0.
Switzerland0-20%1.20.31.70.31.50.2
21-40%4.30.56.00.55.30.4
41-60%17.01.015.30.816.00.6
61-80%29.91.227.01.028.30.8
over 80%47.71.350.01.149.00.8
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161364/147743

NFI4b

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:
state 2009/13
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%..2.2412.241
21-40%0.41002.5382.935
41-60%0.77111.51712.217
61-80%7.52132.91040.48
over 80%23.91173.1597.04
total32.59122.23154.72
Eastern Jura0-20%..1.2571.257
21-40%..0.41000.4100
41-60%0.41001.6492.044
61-80%0.41006.3236.723
over 80%4.72833.2637.95
total5.52542.7448.22
Western Plateau0-20%..1.2571.257
21-40%..0.8700.870
41-60%..5.3275.327
61-80%1.64910.71812.316
over 80%3.23525.8929.18
total4.92843.9448.73
Central Plateau0-20%..0.9570.957
21-40%..0.6710.671
41-60%0.31003.7284.027
61-80%1.25015.01316.212
over 80%5.32342.0647.25
total6.82062.3369.12
Eastern Plateau0-20%..0.7710.771
21-40%..3.2333.233
41-60%..4.7274.727
61-80%1.15820.71221.812
over 80%5.02677.9482.94
total6.124107.32113.32
Western Pre-Alps0-20%0.4100..0.4100
21-40%1.8441.8443.731
41-60%5.5254.1299.618
61-80%8.2205.22613.314
over 80%10.7177.82018.511
total26.6818.81245.54
Central Pre-Alps0-20%0.41001.1581.450
21-40%1.4501.4502.935
41-60%3.93010.81714.715
61-80%17.21322.21239.48
over 80%24.01118.31342.37
total47.0753.86100.82
Eastern Pre-Alps0-20%0.41000.41000.771
21-40%1.1571.4502.537
41-60%2.9356.1248.919
61-80%10.7178.61919.312
over 80%25.71018.21243.96
total40.7734.6875.33
Northwestern Alps0-20%1.844..1.844
21-40%2.1402.2404.328
41-60%5.7245.02610.717
61-80%11.4169.31820.711
over 80%18.2127.22225.410
total39.3723.61162.94
Central Alps0-20%0.3100..0.3100
21-40%0.7702.2412.935
41-60%2.4373.8296.222
61-80%3.1324.2287.320
over 80%8.6183.82912.414
total15.21213.91429.17
Northeastern Alps0-20%0.4100..0.4100
21-40%1.1582.5373.631
41-60%3.6312.9346.522
61-80%5.4242.5377.919
over 80%12.2143.92916.112
total22.6911.81534.45
Southwestern Alps0-20%1.0580.31001.450
21-40%4.2296.32310.418
41-60%21.61211.71733.49
61-80%28.11010.31838.48
over 80%25.0115.82430.89
total79.9434.59114.43
Southeastern Alps0-20%0.41002.4382.835
21-40%6.02410.91816.914
41-60%27.11023.11250.27
61-80%27.11025.01152.17
over 80%17.9139.11927.011
total78.4570.46148.92
Southern Alps0-20%1.4501.1582.538
21-40%3.6314.6288.121
41-60%14.5159.21923.712
61-80%33.299.81843.08
over 80%64.8611.61776.45
total117.5336.29153.82
Switzerland0-20%6.42311.51817.914
21-40%22.31240.9963.27
41-60%88.76103.36192.04
61-80%156.34182.64338.93
over 80%249.33337.82587.12
total523.12676.121199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161365/147744

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track29.64.440.55.516.71.614.72.419.73.03.31.015.90.9
road and skidding road48.14.830.45.210.31.34.31.43.41.46.81.411.70.8
road and cable line13.03.212.73.751.32.137.63.352.23.729.92.539.71.3
road and flight path2.81.61.31.39.51.239.63.424.73.249.72.723.81.1
no access intended6.52.415.24.012.31.43.81.3..10.31.78.90.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterroad and skidding track56.22.472.51.720.51.924.34.624.73.35.72.346.31.1
road and skidding road34.92.317.61.511.21.59.23.18.32.112.13.218.60.9
road and cable line3.90.92.80.632.12.218.74.238.13.717.93.714.70.8
road and flight path....11.11.544.15.428.43.432.04.58.90.6
no access intended5.01.07.11.025.12.13.52.00.60.632.24.511.50.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track50.92.169.11.718.41.217.52.222.12.23.80.933.10.7
road and skidding road37.52.119.01.510.71.05.71.45.81.38.11.315.60.6
road and cable line5.71.03.80.742.81.632.12.745.32.727.02.125.60.7
road and flight path0.60.30.10.110.21.040.92.926.52.445.52.415.40.6
no access intended5.31.07.91.018.01.23.71.10.30.315.61.710.40.5
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 #161366/147745

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track11.51711.31733.41010.61712.4163.93083.26
road and skidding road18.7138.52020.6133.1332.1418.22061.27
road and cable line5.0263.531102.9527.01032.9935.99207.34
road and flight path1.1580.410019.21328.51015.61459.86124.45
no access intended2.5384.22924.7122.735..12.41646.69
total38.9927.911200.7371.9462.95120.33522.62
outside of perimeterroad and skidding track88.35167.3332.7107.22114.8152.241312.53
road and skidding road54.8740.7917.8142.7355.0264.628125.55
road and cable line6.1246.42351.285.52522.9116.82398.96
road and flight path....17.61413.11517.11412.11759.97
no access intended7.92116.31440.091.0580.410012.21777.87
total157.13230.62159.3429.61060.1637.89674.52
totalroad and skidding track99.84178.6366.2717.81327.2106.124395.72
road and skidding road73.5649.2838.495.8247.12212.816186.74
road and cable line11.2179.919154.0432.6955.8642.78306.13
road and flight path1.1580.410036.8941.5832.6971.96184.34
no access intended10.41820.51364.673.8300.410024.611124.35
total196.01258.61360.01101.53123.02158.021197.21

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161367/147746

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantonconcept of transportation system %± %± %±
AGroad and skidding track..63.04.461.54.4
road and skidding road33.327.331.94.332.04.2
road and cable line......
road and flight path......
no access intended66.727.35.02.06.62.2
total100.0.100.0.100.0.
AIroad and skidding track40.015.880.416.755.512.6
road and skidding road20.013.019.616.919.810.3
road and cable line30.014.9..18.59.9
road and flight path10.09.8..6.26.1
no access intended......
total100.0.100.0.100.0.
ARroad and skidding track80.012.749.612.661.29.6
road and skidding road..24.811.015.37.2
road and cable line20.012.925.611.123.48.5
road and flight path......
no access intended......
total100.0.100.0.100.0.
BEroad and skidding track20.82.749.83.036.82.1
road and skidding road22.62.819.32.420.81.8
road and cable line42.93.320.12.430.32.0
road and flight path4.01.30.40.42.00.6
no access intended9.72.010.51.810.11.3
total100.0.100.0.100.0.
BL/BSroad and skidding track45.515.160.37.757.16.9
road and skidding road36.414.634.77.635.16.7
road and cable line9.18.75.03.55.93.3
road and flight path......
no access intended9.18.7..2.02.0
total100.0.100.0.100.0.
FRroad and skidding track23.46.255.26.042.34.6
road and skidding road12.74.914.44.213.73.2
road and cable line44.77.314.54.226.74.1
road and flight path......
no access intended19.25.815.94.417.23.5
total100.0.100.0.100.0.
GEroad and skidding track..100.0.100.0.
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..100.0.100.0.
GLroad and skidding track......
road and skidding road......
road and cable line60.99.268.610.764.07.1
road and flight path10.75.910.67.210.74.6
no access intended28.38.620.89.325.36.4
total100.0.100.0.100.0.
GRroad and skidding track18.02.325.62.921.31.8
road and skidding road2.81.07.21.74.70.9
road and cable line53.62.935.73.245.82.2
road and flight path23.22.528.93.025.71.9
no access intended2.40.92.71.12.50.7
total100.0.100.0.100.0.
JUroad and skidding track26.78.153.56.644.35.3
road and skidding road60.08.943.16.548.95.4
road and cable line3.33.3..1.11.1
road and flight path......
no access intended10.05.53.52.45.72.5
total100.0.100.0.100.0.
LUroad and skidding track13.67.326.04.223.93.7
road and skidding road..12.13.110.02.6
road and cable line31.810.06.72.410.92.8
road and flight path......
no access intended54.510.755.34.855.24.4
total100.0.100.0.100.0.
NEroad and skidding track21.411.057.45.851.75.4
road and skidding road71.412.137.25.742.65.3
road and cable line......
road and flight path......
no access intended7.16.95.42.65.72.5
total100.0.100.0.100.0.
NWroad and skidding track12.511.9..5.05.0
road and skidding road12.511.98.38.210.06.9
road and cable line37.517.533.313.935.010.9
road and flight path12.511.916.711.015.08.2
no access intended25.015.641.714.535.010.9
total100.0.100.0.100.0.
OWroad and skidding track..3.73.71.81.8
road and skidding road7.24.911.26.29.23.9
road and cable line60.59.340.89.550.86.8
road and flight path21.67.915.06.918.35.3
no access intended10.85.929.38.819.85.4
total100.0.100.0.100.0.
SGroad and skidding track34.45.041.26.037.33.9
road and skidding road16.73.920.64.918.43.1
road and cable line33.35.016.24.525.93.5
road and flight path13.33.622.15.017.13.0
no access intended2.21.6..1.30.9
total100.0.100.0.100.0.
SHroad and skidding track100.0.82.46.483.36.0
road and skidding road..14.76.113.95.8
road and cable line..2.92.92.82.8
road and flight path......
no access intended......
total100.0.100.0.100.0.
SOroad and skidding track33.319.357.05.655.35.4
road and skidding road50.020.530.45.231.85.1
road and cable line..10.13.49.43.2
road and flight path......
no access intended16.715.32.51.83.52.0
total100.0.100.0.100.0.
SZroad and skidding track2.32.35.43.73.72.1
road and skidding road18.25.98.14.513.63.8
road and cable line54.57.516.26.137.05.4
road and flight path2.32.35.43.73.72.1
no access intended22.76.364.97.942.05.5
total100.0.100.0.100.0.
TGroad and skidding track60.015.686.84.483.14.5
road and skidding road30.014.613.24.415.54.3
road and cable line10.09.5..1.41.4
road and flight path......
no access intended......
total100.0.100.0.100.0.
TIroad and skidding track2.30.93.82.12.60.9
road and skidding road7.91.715.04.09.51.6
road and cable line22.92.613.93.920.82.2
road and flight path56.53.030.35.250.52.7
no access intended10.51.937.05.416.62.0
total100.0.100.0.100.0.
URroad and skidding track6.44.420.78.212.84.5
road and skidding road3.73.612.36.77.53.6
road and cable line54.69.020.18.139.06.6
road and flight path22.57.527.48.924.75.8
no access intended12.86.019.67.915.94.9
total100.0.100.0.100.0.
VDroad and skidding track8.73.757.13.446.73.1
road and skidding road8.83.822.72.919.72.4
road and cable line52.86.66.71.716.62.3
road and flight path15.74.83.81.36.41.5
no access intended14.14.69.72.110.61.9
total100.0.100.0.100.0.
VSroad and skidding track15.02.324.94.318.02.1
road and skidding road4.71.412.03.36.91.4
road and cable line39.53.220.14.033.62.6
road and flight path37.43.239.94.938.22.7
no access intended3.41.23.01.73.31.0
total100.0.100.0.100.0.
ZGroad and skidding track33.316.282.816.252.713.3
road and skidding road11.110.817.216.213.59.2
road and cable line55.617.0..33.812.6
road and flight path......
no access intended......
total100.0.100.0.100.0.
ZHroad and skidding track..76.93.574.83.6
road and skidding road25.021.711.92.712.32.7
road and cable line75.021.710.52.612.22.7
road and flight path......
no access intended..0.70.70.70.7
total100.0.100.0.100.0.
Switzerlandroad and skidding track15.80.946.51.133.20.7
road and skidding road11.70.818.80.915.70.6
road and cable line39.71.314.50.825.50.7
road and flight path23.91.18.80.615.40.6
no access intended8.90.711.30.710.20.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161368/147747

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
cantonconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
AGroad and skidding track..30.2730.27
road and skidding road0.410015.31415.713
road and cable line......
road and flight path......
no access intended0.8702.4403.234
total1.25747.9349.12
AIroad and skidding track1.3451.6392.924
road and skidding road0.6690.41001.057
road and cable line1.054..1.054
road and flight path0.3100..0.3100
no access intended......
total3.2212.0375.212
ARroad and skidding track2.6302.6305.116
road and skidding road..1.3471.347
road and cable line0.6691.3492.038
road and flight path......
no access intended......
total3.2255.2178.46
BEroad and skidding track16.11447.7763.86
road and skidding road17.51318.51335.99
road and cable line33.2919.21352.47
road and flight path3.1330.31003.431
no access intended7.52110.01817.513
total77.4595.74173.12
BL/BSroad and skidding track2.0439.81511.813
road and skidding road1.6495.6247.320
road and cable line0.41000.8701.257
road and flight path......
no access intended0.4100..0.4100
total4.52716.2920.75
FRroad and skidding track4.12914.21318.311
road and skidding road2.2403.7315.924
road and cable line7.9203.73111.616
road and flight path......
no access intended3.4324.1297.521
total17.61225.7843.33
GEroad and skidding track..3.1203.120
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..3.1203.120
GLroad and skidding track......
road and skidding road......
road and cable line6.5205.02511.513
road and flight path1.2570.8701.943
no access intended3.0341.5494.627
total10.7147.22018.07
GRroad and skidding track18.21319.91338.19
road and skidding road2.8355.6258.420
road and cable line54.1727.81082.05
road and flight path23.41222.51245.98
no access intended2.4382.1414.528
total100.9478.06179.02
JUroad and skidding track3.13412.01515.212
road and skidding road7.0219.71716.711
road and cable line0.4100..0.4100
road and flight path......
no access intended1.2570.8701.944
total11.71522.5834.23
LUroad and skidding track0.9578.8179.716
road and skidding road..4.1264.126
road and cable line2.2372.3374.526
road and flight path......
no access intended3.82818.71022.59
total6.92033.8540.73
NEroad and skidding track1.05713.61214.611
road and skidding road3.2308.81712.013
road and cable line......
road and flight path......
no access intended0.31001.3491.644
total4.52523.7728.24
NWroad and skidding track0.4100..0.4100
road and skidding road0.41000.41000.869
road and cable line1.2551.5462.732
road and flight path0.41000.8691.255
no access intended0.8691.9402.732
total3.1294.6207.78
OWroad and skidding track..0.41000.4100
road and skidding road0.7701.1571.943
road and cable line6.3214.12810.414
road and flight path2.2391.5493.729
no access intended1.1572.9344.028
total10.41410.01520.45
SGroad and skidding track11.21710.11821.311
road and skidding road5.4255.12610.517
road and cable line10.8174.02914.814
road and flight path4.3285.4259.818
no access intended0.770..0.770
total32.5824.61057.14
SHroad and skidding track0.77010.0910.78
road and skidding road..1.8421.842
road and cable line..0.41000.4100
road and flight path......
no access intended......
total0.77012.1512.83
SOroad and skidding track0.87017.01117.810
road and skidding road1.1579.11810.217
road and cable line..3.0343.034
road and flight path......
no access intended0.41000.8701.157
total2.34029.9532.23
SZroad and skidding track0.41000.7701.157
road and skidding road2.9341.1574.029
road and cable line8.7172.24010.915
road and flight path0.41000.7701.157
no access intended3.6308.71812.314
total15.91113.41329.34
TGroad and skidding track1.83916.2818.06
road and skidding road0.9572.5343.429
road and cable line0.3100..0.3100
road and flight path......
no access intended......
total3.03018.7621.74
TIroad and skidding track2.1411.1583.233
road and skidding road7.5214.32911.817
road and cable line21.8123.93025.711
road and flight path53.878.62062.46
no access intended10.01810.51820.512
total95.2428.410123.62
URroad and skidding track0.7701.7442.437
road and skidding road0.41001.0581.450
road and cable line5.6211.7447.318
road and flight path2.3362.3364.624
no access intended1.3491.7443.031
total10.3148.41818.78
VDroad and skidding track1.94545.0746.87
road and skidding road1.94417.81319.713
road and cable line11.4175.32616.714
road and flight path3.4333.0356.424
no access intended3.0357.62210.618
total21.61278.74100.32
VSroad and skidding track12.0168.61920.612
road and skidding road3.8304.1297.920
road and cable line31.696.92238.58
road and flight path29.91013.81543.77
no access intended2.7351.0583.830
total79.9434.59114.43
ZGroad and skidding track1.3532.1403.327
road and skidding road0.41000.41000.968
road and cable line2.137..2.137
road and flight path......
no access intended......
total3.9212.5356.37
ZHroad and skidding track..38.8538.85
road and skidding road0.41006.0236.422
road and cable line1.1575.3256.322
road and flight path......
no access intended..0.41000.4100
total1.44950.4351.82
Switzerlandroad and skidding track82.56315.23397.72
road and skidding road61.27127.75188.94
road and cable line207.1498.56305.63
road and flight path124.6559.87184.44
no access intended46.5976.36122.95
total522.12677.421199.51

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #161369/147748

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system %± %± %± %± %± %±
inside perimeterroad and skidding track30.54.537.36.823.72.414.91.42.70.916.00.9
road and skidding road46.74.935.36.716.12.14.80.86.61.411.80.8
road and cable line11.43.19.84.241.32.850.61.929.52.539.51.3
road and flight path2.81.62.01.96.91.423.61.650.62.723.81.1
no access intended8.62.715.75.112.01.86.10.910.51.78.90.7
total100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterroad and skidding track56.22.374.01.825.52.521.92.03.91.946.31.1
road and skidding road34.42.216.61.516.12.18.01.312.63.318.70.9
road and cable line3.60.93.10.723.82.534.72.318.63.814.50.8
road and flight path....6.01.427.42.131.44.68.90.6
no access intended5.81.16.31.028.52.68.01.333.54.611.50.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track51.32.171.11.824.61.717.71.13.00.833.10.7
road and skidding road36.82.018.11.516.11.56.00.78.01.315.70.6
road and cable line5.00.93.60.732.81.944.31.526.92.125.40.7
road and flight path0.50.30.20.26.51.025.11.346.12.415.40.6
no access intended6.31.07.01.020.01.66.90.815.91.710.40.5
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 #161370/147749

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track11.7176.72327.01134.7103.23383.36
road and skidding road17.9146.32318.41311.1177.82161.57
road and cable line4.4291.84547.28117.9534.79205.94
road and flight path1.1580.41007.92155.1759.56123.95
no access intended3.3332.83513.71614.21512.41646.49
total38.3917.914114.34233.03117.53521.02
outside of perimeterroad and skidding track92.35157.9327.41133.7101.450312.73
road and skidding road56.6735.5917.31412.2174.628126.15
road and cable line5.8256.72325.61153.386.72298.16
road and flight path....6.52342.1911.41760.07
no access intended9.51913.41630.61012.31712.11777.97
total164.23213.42107.45153.5436.29674.82
totalroad and skidding track104.04164.5354.4768.474.627396.02
road and skidding road74.5641.8835.7923.31212.416187.64
road and cable line10.2188.42072.86171.1441.48304.03
road and flight path1.1580.410014.41597.2570.96183.94
no access intended12.81616.21444.3826.51124.511124.35
total202.61231.31221.62386.51153.821195.81

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161371/147750

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track32.73.814.12.021.32.815.02.322.02.82.70.915.90.9
road and skidding road42.94.012.51.911.72.24.71.43.11.26.61.411.70.8
road and cable line10.92.551.42.845.43.439.53.252.93.329.52.539.61.3
road and flight path2.61.37.01.410.32.037.43.222.02.850.62.723.81.1
no access intended10.92.515.02.011.22.23.41.2..10.51.79.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterroad and skidding track66.41.517.62.326.43.424.94.328.03.23.91.946.41.1
road and skidding road24.21.313.12.112.32.512.03.37.51.912.63.318.60.9
road and cable line3.30.633.02.925.83.420.14.035.83.418.63.814.60.8
road and flight path..5.61.415.82.839.94.928.23.231.44.68.90.6
no access intended6.10.730.72.819.83.03.01.70.50.533.54.611.50.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track62.11.415.71.523.52.218.02.124.82.13.00.833.10.7
road and skidding road26.61.312.81.412.01.66.91.45.21.18.01.315.60.6
road and cable line4.30.642.92.136.82.433.62.644.82.426.92.125.50.7
road and flight path0.30.26.41.012.71.738.22.724.92.146.12.415.40.6
no access intended6.70.722.21.714.91.83.31.00.20.215.91.710.40.5
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 #161372/147751

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track18.21415.91516.41412.01617.3143.23382.96
road and skidding road24.01214.1169.0193.8302.5387.82161.17
road and cable line6.12458.1734.9931.6941.5834.79206.74
road and flight path1.4507.9217.92029.91017.21459.56123.95
no access intended6.12416.9148.6202.735..12.41646.79
total55.88112.9476.8579.9478.45117.53521.42
outside of perimeterroad and skidding track251.2317.01415.7148.61919.7131.450313.63
road and skidding road91.6612.6177.3214.1295.3264.628125.55
road and cable line12.51731.71015.4156.92225.2116.72298.56
road and flight path..5.4269.41913.81519.81311.41759.87
no access intended22.91229.61011.8171.0580.410012.11777.87
total378.2196.3559.7634.5970.4636.29675.32
totalroad and skidding track269.4232.81032.1920.61237.094.627396.52
road and skidding road115.6526.71116.3147.9207.82112.416186.64
road and cable line18.61489.8550.3738.5866.7641.48305.33
road and flight path1.45013.31617.31443.7737.1970.96183.84
no access intended29.01146.5820.4123.8300.410024.511124.55
total434.01209.22136.52114.43148.92153.821196.71

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161373/147752

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionconcept of transportation system %± %± %±
Western Juraroad and skidding track26.44.654.72.748.82.4
road and skidding road49.55.234.52.637.62.3
road and cable line13.23.53.51.05.51.1
road and flight path3.31.9..0.70.4
no access intended7.72.87.31.47.41.3
total100.0.100.0.100.0.
Eastern Juraroad and skidding track57.113.261.24.760.74.4
road and skidding road28.612.134.24.633.54.3
road and cable line..3.71.83.31.6
road and flight path......
no access intended14.39.40.90.92.51.4
total100.0.100.0.100.0.
Western Plateauroad and skidding track41.014.276.54.172.94.1
road and skidding road33.713.716.03.617.83.5
road and cable line8.48.1..0.80.8
road and flight path......
no access intended16.910.97.52.68.52.6
total100.0.100.0.100.0.
Central Plateauroad and skidding track27.39.568.03.364.03.2
road and skidding road40.910.516.92.619.32.6
road and cable line9.16.13.01.23.61.2
road and flight path......
no access intended22.79.012.12.313.12.3
total100.0.100.0.100.0.
Eastern Plateauroad and skidding track47.112.177.02.475.42.4
road and skidding road29.411.116.72.217.42.1
road and cable line11.87.84.31.24.71.2
road and flight path5.95.7..0.30.3
no access intended5.95.72.00.82.20.8
total100.0.100.0.100.0.
Western Pre-Alpsroad and skidding track23.65.035.56.728.54.1
road and skidding road8.33.29.74.18.92.6
road and cable line45.95.937.26.842.34.5
road and flight path5.62.73.92.74.92.0
no access intended16.74.413.74.815.53.3
total100.0.100.0.100.0.
Central Pre-Alpsroad and skidding track14.53.112.72.713.52.0
road and skidding road19.83.517.33.118.52.3
road and cable line43.54.324.03.533.12.8
road and flight path6.92.24.01.65.31.3
no access intended15.33.142.04.029.52.7
total100.0.100.0.100.0.
Eastern Pre-Alpsroad and skidding track34.24.540.25.037.03.3
road and skidding road16.73.517.53.917.12.6
road and cable line36.04.516.53.827.03.1
road and flight path7.92.510.33.19.02.0
no access intended5.32.115.53.710.02.1
total100.0.100.0.100.0.
Northwestern Alpsroad and skidding track7.32.515.24.410.32.3
road and skidding road6.42.36.13.06.31.8
road and cable line64.54.549.96.259.03.7
road and flight path8.22.610.63.89.12.2
no access intended13.63.318.24.815.32.7
total100.0.100.0.100.0.
Central Alpsroad and skidding track4.53.112.75.38.53.1
road and skidding road4.73.37.64.26.12.6
road and cable line56.87.522.46.640.35.4
road and flight path15.85.519.76.317.74.2
no access intended18.15.837.67.727.44.9
total100.0.100.0.100.0.
Northeastern Alpsroad and skidding track9.53.73.03.07.32.7
road and skidding road7.93.43.03.06.22.5
road and cable line55.66.357.68.656.25.1
road and flight path11.14.024.27.515.63.7
no access intended15.94.612.25.714.63.6
total100.0.100.0.100.0.
Southwestern Alpsroad and skidding track15.02.324.94.318.02.1
road and skidding road4.71.412.03.36.91.4
road and cable line39.53.220.14.033.62.6
road and flight path37.43.239.94.938.22.7
no access intended3.41.23.01.73.31.0
total100.0.100.0.100.0.
Southeastern Alpsroad and skidding track22.02.828.03.224.82.1
road and skidding road3.11.27.51.95.21.1
road and cable line52.93.335.83.444.82.4
road and flight path22.02.828.23.224.92.1
no access intended..0.50.50.20.2
total100.0.100.0.100.0.
Southern Alpsroad and skidding track2.70.93.91.93.00.8
road and skidding road6.61.412.63.38.01.3
road and cable line29.52.518.63.826.92.1
road and flight path50.62.731.44.646.12.4
no access intended10.51.733.54.615.91.7
total100.0.100.0.100.0.
Switzerlandroad and skidding track16.00.946.51.133.20.7
road and skidding road11.70.818.70.915.60.6
road and cable line39.71.314.60.825.50.7
road and flight path23.71.18.80.615.30.6
no access intended8.90.711.40.710.30.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161374/147753

NFI4b

forest area: protection forest perimeter SilvaProtect · concept of transportation system · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
protection forest perimeter SilvaProtect
inside perimeteroutside of perimetertotal
economic regionconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
Western Juraroad and skidding track8.62066.9675.45
road and skidding road16.11442.2858.26
road and cable line4.3294.3298.620
road and flight path1.158..1.158
no access intended2.5388.91911.417
total32.59122.23154.72
Eastern Juraroad and skidding track3.23426.1829.37
road and skidding road1.64914.61416.213
road and cable line..1.6491.649
road and flight path......
no access intended0.8700.41001.257
total5.52542.7448.22
Western Plateauroad and skidding track2.04433.6735.67
road and skidding road1.6497.0238.720
road and cable line0.4100..0.4100
road and flight path......
no access intended0.8703.3344.130
total4.92843.9448.73
Central Plateauroad and skidding track1.94042.4644.26
road and skidding road2.83310.51613.314
road and cable line0.6711.9402.535
road and flight path......
no access intended1.5447.5209.118
total6.82062.3369.12
Eastern Plateauroad and skidding track2.93582.6485.44
road and skidding road1.84417.91319.712
road and cable line0.7714.6275.425
road and flight path0.4100..0.4100
no access intended0.41002.1412.537
total6.124107.32113.32
Western Pre-Alpsroad and skidding track6.3236.72213.015
road and skidding road2.2401.8444.029
road and cable line12.2157.02219.211
road and flight path1.5490.7702.240
no access intended4.4282.6377.021
total26.6818.81245.54
Central Pre-Alpsroad and skidding track6.8226.82213.615
road and skidding road9.3199.31918.613
road and cable line20.41212.91633.49
road and flight path3.2332.2405.425
no access intended7.22222.61129.810
total47.0753.86100.82
Eastern Pre-Alpsroad and skidding track13.91513.91527.99
road and skidding road6.8226.12412.916
road and cable line14.6145.72420.412
road and flight path3.2333.6316.822
no access intended2.1405.4257.521
total40.7734.6875.33
Northwestern Alpsroad and skidding track2.9353.6316.523
road and skidding road2.5371.4503.930
road and cable line25.4911.81637.27
road and flight path3.2332.5375.724
no access intended5.4254.3289.718
total39.3723.61162.94
Central Alpsroad and skidding track0.7701.8442.537
road and skidding road0.7711.1581.844
road and cable line8.6183.13211.715
road and flight path2.4372.7345.224
no access intended2.7345.2258.019
total15.21213.91429.17
Northeastern Alpsroad and skidding track2.2400.41002.537
road and skidding road1.8440.41002.140
road and cable line12.5146.82119.310
road and flight path2.5372.9345.424
no access intended3.6311.4505.026
total22.6911.81534.45
Southwestern Alpsroad and skidding track12.0168.61920.612
road and skidding road3.8304.1297.920
road and cable line31.696.92238.58
road and flight path29.91013.81543.77
no access intended2.7351.0583.830
total79.9434.59114.43
Southeastern Alpsroad and skidding track17.31419.71337.09
road and skidding road2.5385.3267.821
road and cable line41.5825.21166.76
road and flight path17.21419.81337.19
no access intended..0.41000.4100
total78.4570.46148.92
Southern Alpsroad and skidding track3.2331.4504.627
road and skidding road7.8214.62812.416
road and cable line34.796.72241.48
road and flight path59.5611.41770.96
no access intended12.41612.11724.511
total117.5336.29153.82
Switzerlandroad and skidding track83.66314.33397.92
road and skidding road61.27126.25187.44
road and cable line207.5498.66306.23
road and flight path124.1559.67183.74
no access intended46.6877.36123.95
total523.12676.121199.11

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161375/147754

NFI4b

forest area: protection forest perimeter SilvaProtect · main type of harvest · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtectmain type of harvest %± %± %± %± %± %± %±
inside perimeterskidder58.34.762.05.531.72.020.92.816.32.89.51.626.81.1
forwarder18.53.722.84.72.50.72.41.15.11.61.80.74.90.6
mobile tower yarder12.03.110.13.424.41.823.32.928.13.412.11.820.21.0
cable crane2.81.62.51.825.11.89.02.026.43.316.02.018.11.0
helicopter2.81.61.31.316.41.643.93.424.23.258.62.729.01.1
others5.62.21.31.3..0.50.5..2.10.81.00.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside of perimeterskidder61.72.358.61.939.52.329.04.922.93.213.13.347.81.1
forwarder32.62.237.41.95.21.05.82.58.82.23.81.922.90.9
mobile tower yarder3.90.92.90.717.21.814.03.814.12.77.52.68.30.6
cable crane0.70.40.30.215.51.72.41.722.93.210.43.06.60.6
helicopter0.20.20.20.221.72.047.75.430.73.556.04.813.20.7
others0.90.50.60.30.90.41.21.20.60.69.22.81.30.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalskidder61.02.159.01.835.21.523.32.519.62.110.31.438.60.8
forwarder29.82.035.81.83.70.63.41.06.91.42.30.715.00.6
mobile tower yarder5.51.03.70.721.21.320.62.421.32.211.01.513.50.6
cable crane1.10.40.50.320.81.37.11.524.72.314.71.711.60.5
helicopter0.70.40.30.218.71.245.02.927.32.458.02.320.10.6
others1.80.60.70.30.40.20.70.50.30.33.80.91.20.2
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #161376/147755
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