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NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: biogeographical region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years) %± %± %± %± %± %± %±
critical0 (unstocked).0.0.0.05.72.84.63.27.24.93.23.14.51.5
1-4027.313.438.911.530.85.535.17.335.39.042.58.734.63.3
41-809.18.727.810.69.93.623.26.428.88.628.78.119.72.8
81-12036.414.527.810.66.93.0.0.010.85.9.0.08.41.9
121-160.0.0.0.015.14.29.34.410.85.9.0.08.82.0
over 160.0.0.0.04.12.37.03.9.0.0.0.02.91.2
uneven-aged27.313.45.65.427.55.220.96.27.24.925.57.821.12.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stable0 (unstocked).0.00.40.40.80.40.80.82.41.40.50.50.70.2
1-4025.63.330.12.820.01.818.83.523.13.820.12.722.91.1
41-8017.42.917.82.314.71.611.42.97.22.330.43.217.11.0
81-12022.73.227.92.716.71.78.92.613.53.16.51.717.11.0
121-16012.82.59.81.813.81.613.83.120.83.64.71.412.10.9
over 1602.91.31.40.76.71.113.03.09.62.66.51.76.00.6
uneven-aged18.63.012.72.027.42.033.34.223.33.831.33.224.11.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stable0 (unstocked)0.80.51.10.52.40.73.11.52.61.12.01.01.80.3
1-407.81.429.52.214.41.610.82.712.22.313.52.416.10.9
41-8014.71.919.01.910.81.412.32.98.72.025.13.115.10.8
81-12024.42.330.92.219.61.89.22.510.22.29.52.120.50.9
121-16018.32.08.91.412.11.56.22.113.32.46.61.811.70.8
over 1603.61.00.50.39.91.412.32.919.42.88.11.97.30.6
uneven-aged30.52.410.11.430.82.146.14.433.73.435.23.427.51.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0 (unstocked)0.60.30.80.31.90.42.40.92.90.91.40.51.50.2
1-4013.81.530.01.718.21.217.62.218.02.018.71.820.00.7
41-8015.41.518.71.412.61.013.52.09.71.627.92.116.20.6
81-12024.11.829.71.717.31.27.81.611.51.77.41.218.40.7
121-16016.21.69.01.113.11.19.81.715.82.05.21.111.70.5
over 1603.30.80.80.38.00.911.81.914.31.96.81.26.50.4
uneven-aged26.71.910.91.228.91.437.12.827.82.432.72.225.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202161/188399
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical0 (unstocked)....1.5500.7710.7710.41003.233
1-401.1582.5387.9215.2253.5314.72624.912
41-800.41001.8452.6383.4312.8353.23314.116
81-1201.4501.8451.845..1.158..6.024
121-160....3.9301.4501.158..6.323
over 160....1.1581.058....2.141
uneven-aged1.1580.41007.1223.1330.7712.83515.215
total4.0306.42325.81114.7149.81811.21771.87
less stable0 (unstocked)..0.41001.4500.31001.1580.41003.532
1-4015.91529.41033.9107.92010.21815.315112.55
41-8010.81817.31424.9124.8263.23323.21284.26
81-12014.11527.21128.4113.8306.0244.92684.36
121-1607.9219.51923.4125.8249.2193.63159.58
over 1601.8451.45011.4175.5244.2285.02629.311
uneven-aged11.51712.41746.5814.01510.31823.811118.55
total62.0697.65169.9442.1744.1876.15491.92
stable0 (unstocked)1.1581.8453.9301.4501.8441.45011.318
1-4010.11945.6823.6124.8268.4209.619102.16
41-8019.11329.41017.8145.5256.02417.81395.56
81-12031.71047.8832.3104.1287.1226.723129.75
121-16023.81213.81619.9132.8359.2194.62774.07
over 1604.7280.77116.3145.52513.4155.72546.39
uneven-aged39.7915.61550.5820.61223.31124.911174.54
total130.13154.63164.3444.6769.1570.86633.52
total0 (unstocked)1.1582.1416.8232.4383.5312.14118.114
1-4027.01177.5665.5717.91322.11229.610239.64
41-8030.31048.5845.3813.71512.01744.28193.84
81-12047.2876.8662.477.92014.11511.717220.04
121-16031.71023.31247.289.91819.4128.220139.85
over 1606.5232.14128.71112.01617.61310.71877.76
uneven-aged52.3728.311104.1537.7834.3951.67308.23
total196.01258.61360.01101.53123.02158.021197.21
© WSL, Swiss National Forest Inventory, 15.07.2015 #202162/188400
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: canton
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
stand stability
criticalless stablestabletotal
cantonstand age (classes of 40 years) %± %± %± %±
AG0 (unstocked).0.0.0.01.31.30.80.8
1-40.0.034.87.032.95.433.64.3
41-80.0.019.65.921.14.720.53.7
81-120.0.023.96.330.35.327.94.1
121-160.0.010.94.65.32.67.42.4
over 160.0.04.33.0.0.01.61.2
uneven-aged.0.06.53.79.23.38.22.5
total.0.0100.0.100.0.100.0.
AI0 (unstocked).0.0.0.08.98.86.26.1
1-40.0.0.0.0.0.0.0.0
41-80.0.020.018.48.98.812.38.4
81-120.0.060.022.444.615.349.312.7
121-160.0.020.018.48.98.812.38.4
over 160.0.0.0.019.812.513.78.9
uneven-aged.0.0.0.08.98.86.26.1
total.0.0100.0.100.0.100.0.
AR0 (unstocked).0.0.0.0.0.0.0.0
1-40.0.037.114.821.411.227.38.9
41-80.0.027.013.6.0.011.56.4
81-120100.0.18.011.764.312.845.99.9
121-160.0.018.011.77.17.011.56.4
over 160.0.0.0.0.0.0.0.0
uneven-aged.0.0.0.07.17.03.83.8
total100.0.100.0.100.0.100.0.
BE0 (unstocked)4.03.91.40.82.30.92.00.6
1-4024.08.515.92.519.72.418.31.7
41-8016.07.312.12.212.02.012.21.5
81-12020.08.020.42.719.22.419.81.8
121-1608.05.414.92.412.12.013.11.5
over 160.0.06.51.76.11.56.01.1
uneven-aged28.09.028.83.128.72.828.72.0
total100.0.100.0.100.0.100.0.
BL/BS0 (unstocked).0.0.0.0.0.0.0.0
1-40.0.026.310.212.65.917.75.4
41-80.0.015.88.431.48.325.66.2
81-120.0.036.811.121.47.327.26.3
121-160.0.010.57.112.65.911.84.6
over 160.0.0.0.03.13.12.02.0
uneven-aged.0.010.57.118.97.015.75.1
total.0.0100.0.100.0.100.0.
FR0 (unstocked).0.0.0.03.52.51.71.2
1-4020.018.024.05.817.65.120.73.8
41-80.0.027.86.129.76.127.64.2
81-12040.022.033.36.424.65.729.34.2
121-160.0.03.72.61.81.82.61.5
over 160.0.0.0.05.33.02.61.5
uneven-aged40.022.011.14.317.55.015.53.4
total100.0.100.0.100.0.100.0.
GE0 (unstocked).0.0.0.021.019.914.814.6
1-40.0.0.0.041.923.729.518.7
41-80.0.050.038.021.019.929.518.7
81-120.0.050.038.016.214.426.216.9
121-160.0.0.0.0.0.0.0.0
over 160.0.0.0.0.0.0.0.0
uneven-aged.0.0.0.0.0.0.0.0
total.0.0100.0.100.0.100.0.
GL0 (unstocked).0.0.0.0.0.0.0.0
1-4020.018.020.98.416.88.919.35.8
41-8040.022.116.77.711.27.517.15.5
81-120.0.016.77.711.27.512.84.9
121-16020.018.012.56.816.38.714.85.2
over 16020.018.04.24.122.49.912.84.9
uneven-aged.0.028.99.321.99.823.26.2
total100.0.100.0.100.0.100.0.
GR0 (unstocked)8.44.61.50.93.21.02.90.7
1-4038.48.117.62.712.32.016.11.6
41-8030.87.712.92.49.91.812.51.5
81-1208.44.611.82.311.01.911.11.4
121-1608.44.616.52.714.92.115.01.6
over 160.0.010.32.216.62.213.11.5
uneven-aged5.63.929.53.332.22.829.32.0
total100.0.100.0.100.0.100.0.
JU0 (unstocked).0.0.0.0.0.0.0.0
1-40.0.021.97.47.73.712.53.5
41-8025.021.818.86.911.64.514.83.8
81-12025.021.828.28.032.86.530.84.9
121-160.0.012.55.917.35.314.83.8
over 160.0.0.0.0.0.0.0.0
uneven-aged50.025.118.56.930.66.427.14.8
total100.0.100.0.100.0.100.0.
LU0 (unstocked)9.18.7.0.0.0.00.80.8
1-4018.211.726.66.124.55.324.83.8
41-8018.211.79.44.015.64.513.33.0
81-12018.211.722.55.724.55.323.13.7
121-16027.313.515.45.010.73.814.03.1
over 160.0.01.91.9.0.00.80.8
uneven-aged9.18.724.35.924.85.423.33.7
total100.0.100.0.100.0.100.0.
NE0 (unstocked).0.0.0.0.0.0.0.0
1-40.0.037.69.44.92.815.03.9
41-80.0.011.06.08.63.79.43.2
81-120.0.03.73.615.24.711.63.5
121-160.0.07.35.020.25.216.24.0
over 160.0.03.73.63.32.33.41.9
uneven-aged.0.036.79.347.86.444.35.3
total.0.0100.0.100.0.100.0.
NW0 (unstocked).0.0.0.0.0.0.0.0
1-40100.0.15.410.2.0.015.08.2
41-80.0.030.813.0.0.020.09.1
81-120.0.023.111.933.319.625.09.9
121-160.0.015.410.216.715.515.08.2
over 160.0.0.0.0.0.0.0.0
uneven-aged.0.015.410.250.020.825.09.9
total100.0.100.0.100.0.100.0.
OW0 (unstocked).0.0.0.07.55.13.52.4
1-40.0.012.06.611.76.411.04.3
41-8023.320.54.04.015.37.110.74.1
81-120.0.04.04.03.93.93.72.6
121-160.0.032.09.415.67.222.05.6
over 160.0.08.05.53.93.95.53.1
uneven-aged76.720.540.09.842.29.843.76.8
total100.0.100.0.100.0.100.0.
SG0 (unstocked).0.01.21.21.41.41.20.9
1-4050.020.523.44.712.74.019.63.2
41-80.0.07.42.98.53.37.62.1
81-120.0.025.94.935.25.729.13.6
121-160.0.011.13.514.14.112.02.6
over 160.0.02.51.79.93.65.71.9
uneven-aged50.020.528.45.018.34.624.73.4
total100.0.100.0.100.0.100.0.
SH0 (unstocked).0.0.0.0.0.0.0.0
1-40100.0.55.616.719.27.830.67.8
41-80.0.022.214.023.18.322.27.0
81-120.0.011.110.638.59.630.67.8
121-160.0.0.0.015.47.211.15.3
over 160.0.0.0.03.83.82.82.8
uneven-aged.0.011.110.6.0.02.82.8
total100.0.100.0.100.0.100.0.
SO0 (unstocked).0.0.0.0.0.0.0.0
1-40.0.025.87.917.05.220.04.4
41-80.0.016.16.613.24.714.13.8
81-120.0.029.08.235.86.632.95.1
121-160.0.016.16.615.14.915.33.9
over 160.0.0.0.03.82.62.41.7
uneven-aged100.0.12.96.115.14.915.33.9
total100.0.100.0.100.0.100.0.
SZ0 (unstocked)28.617.2.0.02.52.53.72.1
1-4014.313.314.76.110.04.812.33.7
41-8014.313.320.67.07.54.213.63.8
81-12014.313.317.66.630.07.323.54.7
121-16014.313.323.57.322.56.622.24.6
over 160.0.08.84.95.03.56.22.7
uneven-aged14.313.314.76.122.56.618.64.3
total100.0.100.0.100.0.100.0.
TG0 (unstocked).0.0.0.0.0.0.0.0
1-40100.0.22.97.722.56.624.85.1
41-80.0.026.28.012.55.317.94.5
81-120.0.034.58.835.07.633.85.6
121-160.0.03.33.217.56.011.03.7
over 160.0.0.0.0.0.0.0.0
uneven-aged.0.013.16.112.55.312.43.9
total100.0.100.0.100.0.100.0.
TI0 (unstocked).0.00.60.60.70.70.60.4
1-4045.19.723.03.214.42.921.02.2
41-8023.58.431.73.527.33.729.22.4
81-120.0.06.81.98.92.47.21.4
121-160.0.02.91.34.11.63.20.9
over 160.0.05.81.88.22.36.41.3
uneven-aged31.39.129.33.436.34.032.42.5
total100.0.100.0.100.0.100.0.
UR0 (unstocked).0.0.0.0.0.0.0.0
1-4051.120.545.19.613.07.132.76.3
41-80.0.018.17.426.19.219.45.3
81-120.0.0.0.013.07.15.33.0
121-16016.315.03.63.68.75.97.13.4
over 16016.315.07.35.013.07.110.64.1
uneven-aged16.315.025.98.526.19.224.95.8
total100.0.100.0.100.0.100.0.
VD0 (unstocked).0.0.0.01.81.01.10.7
1-4036.414.521.84.415.62.818.52.4
41-809.18.721.94.415.02.817.02.3
81-12018.211.616.14.017.42.917.02.3
121-1609.18.717.34.114.42.715.12.2
over 1609.18.76.82.76.61.96.71.5
uneven-aged18.211.616.14.029.23.524.52.6
total100.0.100.0.100.0.100.0.
VS0 (unstocked)4.33.00.70.72.71.32.10.8
1-4035.07.021.33.512.02.719.02.2
41-8021.76.110.22.613.32.813.21.9
81-120.0.08.02.310.02.47.81.5
121-16013.05.013.83.06.01.910.21.7
over 1606.53.613.83.011.32.611.71.8
uneven-aged19.55.832.14.044.64.136.02.6
total100.0.100.0.100.0.100.0.
ZG0 (unstocked).0.020.018.5.0.06.86.8
1-40.0.040.022.640.816.140.513.1
41-80.0.0.0.038.815.825.711.5
81-120.0.020.018.510.210.013.59.2
121-160.0.0.0.0.0.0.0.0
over 160.0.0.0.0.0.0.0.0
uneven-aged.0.020.018.510.210.013.59.2
total.0.0100.0.100.0.100.0.
ZH0 (unstocked).0.0.0.0.0.0.0.0
1-4066.719.344.26.922.54.432.03.9
41-8016.715.319.35.516.84.017.73.2
81-120.0.026.96.240.55.234.03.9
121-160.0.03.82.79.03.06.82.1
over 160.0.0.0.0.0.0.0.0
uneven-aged16.715.35.83.211.23.49.52.4
total100.0.100.0.100.0.100.0.
Switzerland0 (unstocked)4.41.40.70.21.80.31.50.2
1-4034.53.322.91.116.20.920.00.7
41-8019.62.817.21.015.20.916.30.6
81-1208.41.917.31.020.50.918.40.7
121-1608.72.012.10.911.60.811.60.5
over 1603.01.25.90.67.30.66.50.4
uneven-aged21.42.923.91.127.31.025.60.7
total100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202163/188401
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: canton
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
stand stability
criticalless stablestabletotal
cantonstand age (classes of 40 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
AG0 (unstocked)....0.41000.4100
1-40..6.42310.11816.513
41-80..3.6326.42310.118
81-120..4.4299.31913.715
121-160..2.0441.6493.632
over 160..0.870..0.870
uneven-aged..1.2572.8374.030
total..18.51230.6749.12
AI0 (unstocked)....0.31000.3100
1-40........
41-80..0.31000.31000.669
81-120..1.0541.6392.627
121-160..0.31000.31000.669
over 160....0.7710.771
uneven-aged....0.31000.3100
total..1.6393.6225.212
AR0 (unstocked)........
1-40..1.3491.0552.335
41-80..1.055..1.055
81-1200.31000.6692.9273.822
121-160..0.6690.31001.055
over 160........
uneven-aged....0.31000.3100
total0.31003.6254.5188.46
BE0 (unstocked)0.31001.0582.1413.431
1-402.14111.71717.91331.610
41-801.4508.91910.91721.212
81-1201.74515.01417.51334.29
121-1600.77111.01711.01722.612
over 160..4.8265.52510.318
uneven-aged2.43821.21226.11149.77
total8.52073.6590.95173.12
BL/BS0 (unstocked)........
1-40..2.0431.6493.731
41-80..1.2574.1295.324
81-120..2.9362.8365.624
121-160..0.8701.6492.439
over 160....0.41000.4100
uneven-aged..0.8702.4393.333
total..7.71913.01220.75
FR0 (unstocked)....0.7700.770
1-400.41004.8273.7309.019
41-80..5.6246.32311.916
81-1200.7706.7225.22512.715
121-160..0.7700.41001.157
over 160....1.1571.157
uneven-aged0.7702.2403.7316.722
total1.94420.21021.31043.33
GE0 (unstocked)....0.51000.5100
1-40....0.9650.965
41-80..0.51000.51000.965
81-120..0.51000.41000.871
121-160........
over 160........
uneven-aged........
total..0.9652.2343.120
GL0 (unstocked)........
1-400.41001.9431.2573.531
41-800.8701.5490.8703.133
81-120..1.5490.8702.339
121-1600.41001.2571.1572.736
over 1600.41000.41001.5492.339
uneven-aged..2.7361.5494.228
total1.9439.2166.92018.07
GR0 (unstocked)1.0581.0583.1335.225
1-404.82611.91712.21728.810
41-803.8308.7209.81922.312
81-1201.0588.02010.81819.813
121-1601.05811.21714.71526.911
over 160..7.02216.41423.412
uneven-aged0.77120.01331.71052.47
total12.51667.8698.74179.02
JU0 (unstocked)........
1-40..2.7361.6494.328
41-800.41002.3402.3405.126
81-1200.41003.5326.62210.516
121-160..1.6493.5325.126
over 160........
uneven-aged0.8702.3406.2239.318
total1.64912.41520.2934.23
LU0 (unstocked)0.3100....0.3100
1-400.6704.5265.02410.116
41-800.6701.6443.2315.423
81-1200.6703.8285.0249.416
121-1600.9572.6352.2375.722
over 160..0.3100..0.3100
uneven-aged0.31004.1265.1249.516
total3.52916.81120.5940.73
NE0 (unstocked)........
1-40..3.3301.0574.226
41-80..1.0571.7442.634
81-120..0.31003.0323.330
121-160..0.6703.9284.625
over 160..0.31000.6701.057
uneven-aged..3.2309.31512.512
total..8.71719.4928.24
NW0 (unstocked)........
1-400.41000.869..1.255
41-80..1.546..1.546
81-120..1.2550.8691.940
121-160..0.8690.41001.255
over 160........
uneven-aged..0.8691.2551.940
total0.41005.0192.3367.78
OW0 (unstocked)....0.7710.771
1-40..1.1571.1572.239
41-800.31000.41001.5492.240
81-120..0.41000.41000.770
121-160..3.0331.5494.526
over 160..0.7700.41001.157
uneven-aged1.1573.7294.0288.916
total1.5499.3159.61620.45
SG0 (unstocked)..0.41000.41000.771
1-401.1576.9223.23311.217
41-80..2.2402.2404.328
81-120..7.6219.01916.613
121-160..3.3333.6316.922
over 160..0.7702.5373.333
uneven-aged1.1578.3204.72714.114
total2.24029.3925.61057.14
SH0 (unstocked)........
1-400.41001.8421.8423.926
41-80..0.7702.1382.832
81-120..0.41003.6273.926
121-160....1.4481.448
over 160....0.41000.4100
uneven-aged..0.4100..0.4100
total0.41003.2299.31112.83
SO0 (unstocked)........
1-40..3.0343.4326.422
41-80..1.9442.6364.527
81-120..3.4327.22010.616
121-160..1.9443.0344.926
over 160....0.8700.870
uneven-aged0.41001.5493.0344.926
total0.410011.71520.1932.23
SZ0 (unstocked)0.770..0.41001.157
1-400.41001.8441.4493.630
41-800.41002.5361.1574.029
81-1200.41002.2404.3276.921
121-1600.41002.9343.3326.521
over 160..1.1570.7701.844
uneven-aged0.41001.8443.3325.424
total2.53612.31414.51229.34
TG0 (unstocked)........
1-400.6702.1362.7315.421
41-80..2.4341.5433.925
81-120..3.2314.2247.318
121-160..0.31002.1362.434
over 160........
uneven-aged..1.2491.5432.731
total0.6709.11511.91121.74
TI0 (unstocked)..0.41000.41000.771
1-404.12914.3157.52125.911
41-802.14119.71314.31536.29
81-120..4.2294.7278.919
121-160..1.8442.1413.930
over 160..3.6314.3287.921
uneven-aged2.93518.21319.01340.18
total9.11962.2652.37123.62
UR0 (unstocked)........
1-401.0584.1281.0576.122
41-80..1.7432.0393.628
81-120....1.0571.057
121-1600.31000.31000.7701.349
over 1600.31000.7701.0572.039
uneven-aged0.31002.4372.0394.725
total2.0409.1177.61718.78
VD0 (unstocked)....1.1581.158
1-401.5507.2229.91918.613
41-800.41007.2229.41917.114
81-1200.8715.32611.01817.114
121-1600.41005.7259.12015.215
over 1600.41002.2414.2306.823
uneven-aged0.8715.32618.51324.511
total4.23033.0963.25100.32
VS0 (unstocked)0.7710.31001.4502.438
1-405.52510.0186.22321.712
41-803.4314.8266.92215.114
81-120..3.8305.1258.919
121-1602.1416.5223.13311.716
over 1601.0586.5225.82413.415
uneven-aged3.13315.11423.01141.28
total15.81447.0751.67114.43
ZG0 (unstocked)..0.4100..0.4100
1-40..0.9681.7442.632
41-80....1.6471.647
81-120..0.41000.41000.968
121-160........
over 160........
uneven-aged..0.41000.41000.968
total..2.1374.2216.37
ZH0 (unstocked)........
1-401.4498.1197.12116.612
41-800.41003.5315.3259.218
81-120..4.92612.71517.612
121-160..0.7702.8353.531
over 160........
uneven-aged0.41001.1573.5314.926
total2.14018.31231.4751.82
Switzerland0 (unstocked)3.1333.63211.41818.114
1-4024.612112.75103.16240.44
41-8014.01684.7696.86195.64
81-1206.02485.16130.25221.34
121-1606.22459.7873.87139.75
over 1602.14129.11146.4977.66
uneven-aged15.315117.95173.74306.83
total71.37492.92635.321199.51
© WSL, Swiss National Forest Inventory, 15.07.2015 #202164/188402
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years) %± %± %± %± %± %±
critical0 (unstocked).0.0.0.09.84.64.72.1.0.04.41.4
1-4033.313.637.512.119.56.238.44.742.19.034.73.3
41-808.38.031.311.69.84.620.03.930.68.519.62.8
81-12033.313.625.010.812.25.13.81.9.0.08.42.0
121-160.0.0.0.014.65.511.43.1.0.08.82.0
over 160.0.0.0.0.0.05.72.3.0.02.91.2
uneven-aged25.012.56.36.134.17.416.13.627.28.221.22.9
total100.0.100.0.100.0.100.0.100.0.100.0.
less stable0 (unstocked).0.00.40.40.40.41.50.60.50.50.70.2
1-4027.03.430.22.918.22.321.51.920.02.822.81.1
41-8017.22.919.02.513.92.112.21.530.13.217.11.0
81-12023.63.227.82.822.12.511.11.46.11.617.21.0
121-16011.52.49.31.817.12.314.01.64.81.512.10.9
over 1602.91.31.60.84.61.39.91.46.71.75.90.6
uneven-aged17.82.911.72.023.62.529.82.131.93.224.11.1
total100.0.100.0.100.0.100.0.100.0.100.0.
stable0 (unstocked)0.80.51.30.62.40.92.40.72.11.01.80.3
1-408.71.530.02.316.02.112.31.413.42.416.10.9
41-8016.01.917.81.911.21.810.91.425.13.115.10.8
81-12025.22.329.42.323.12.512.91.59.72.120.51.0
121-16017.12.09.61.510.91.811.61.46.71.811.70.8
over 1603.00.91.00.57.51.514.61.58.22.07.30.6
uneven-aged29.32.410.91.628.92.635.32.134.93.427.61.0
total100.0.100.0.100.0.100.0.100.0.100.0.
total0 (unstocked)0.50.30.90.42.00.62.20.41.20.51.50.2
1-4015.01.530.21.817.21.518.71.218.51.920.00.7
41-8016.21.618.51.512.41.312.31.027.92.216.20.6
81-12024.91.828.71.822.01.711.30.97.31.218.40.7
121-16015.01.59.31.114.01.412.61.05.31.111.70.6
over 1602.90.71.20.45.70.911.71.06.91.26.50.4
uneven-aged25.61.911.11.226.81.831.11.432.92.325.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202165/188403
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: production region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical0 (unstocked)....1.4501.745..3.233
1-401.5502.1412.93514.0164.42724.812
41-800.41001.8451.4507.3223.23314.016
81-1201.5501.4501.8451.450..6.124
121-160....2.2414.129..6.323
over 160......2.141..2.141
uneven-aged1.1580.41005.0265.9242.83515.215
total4.4295.62514.81536.5910.41871.77
less stable0 (unstocked)..0.41000.41002.4380.41003.532
1-4017.21426.41118.41435.41014.915112.25
41-8011.01816.51414.11620.11322.31284.06
81-12015.01524.31122.31218.3134.62784.56
121-1607.3228.12117.31423.2123.53159.48
over 1601.8451.4504.72716.3145.02629.111
uneven-aged11.31810.21823.81249.2823.711118.25
total63.5687.25100.95165.0474.35490.92
stable0 (unstocked)1.1581.8452.5384.5281.45011.318
1-4011.71741.5816.91422.7129.219102.16
41-8021.51224.61111.91720.21317.31495.56
81-12033.91040.8924.51223.9126.723129.85
121-16023.01213.31611.51721.5124.62774.07
over 1604.0301.4507.92127.1115.72546.19
uneven-aged39.4915.11530.61065.2724.111174.54
total134.73138.53105.95185.0369.16633.22
total0 (unstocked)1.1582.1414.3298.7201.84518.014
1-4030.31070.0638.2972.1728.510239.14
41-8032.91042.9827.41147.6842.98193.64
81-12050.4766.5648.7843.6811.317220.34
121-16030.31021.41231.01048.888.220139.65
over 1605.8252.83512.61645.4810.61877.36
uneven-aged51.8725.71159.47120.3550.67307.93
total202.61231.31221.62386.51153.821195.81
© WSL, Swiss National Forest Inventory, 15.07.2015 #202166/188404
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years) %± %± %± %± %± %± %±
critical0 (unstocked).0.04.93.47.35.04.33.09.45.2.0.04.41.4
1-4035.79.124.46.732.99.035.07.040.38.742.19.034.53.3
41-8021.47.87.34.116.27.421.76.125.27.730.68.519.82.8
81-12028.68.59.84.67.35.0.0.09.45.2.0.08.42.0
121-160.0.014.65.510.96.013.05.09.45.2.0.08.82.0
over 160.0.02.42.47.35.06.53.6.0.0.0.02.91.2
uneven-aged14.36.636.67.518.27.419.55.86.34.327.28.221.22.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
less stable0 (unstocked)0.20.20.70.51.10.80.70.71.91.10.50.50.70.2
1-4028.92.215.72.227.23.321.33.520.33.220.02.822.91.1
41-8018.21.914.22.114.32.610.22.610.72.530.13.217.11.0
81-12026.12.118.12.317.12.88.02.313.82.76.11.617.21.0
121-16010.21.515.72.213.82.613.83.017.13.04.81.512.10.9
over 1602.10.76.11.44.41.513.83.010.12.46.71.75.90.6
uneven-aged14.21.729.52.722.13.132.14.026.03.531.93.224.11.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
stable0 (unstocked)1.00.42.71.01.60.92.71.32.61.02.11.01.80.3
1-4019.71.415.52.313.32.512.02.712.72.213.42.416.20.9
41-8016.91.411.62.011.92.413.32.88.11.825.13.115.10.8
81-12027.41.615.92.330.03.410.02.410.72.09.72.120.50.9
121-16013.21.28.91.814.52.66.01.915.02.36.71.811.70.8
over 1602.00.58.91.89.12.111.32.618.42.58.22.07.30.6
uneven-aged19.81.436.43.019.42.944.64.132.53.134.93.427.51.0
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0 (unstocked)0.70.21.90.61.80.72.10.82.80.81.20.51.50.2
1-4023.21.216.21.521.12.119.02.217.61.818.51.920.10.7
41-8017.51.112.61.413.31.713.21.910.41.527.92.216.20.6
81-12027.01.316.61.522.52.17.81.511.81.67.31.218.40.7
121-16011.90.912.61.413.91.710.21.715.41.85.31.111.70.6
over 1602.00.47.11.16.81.311.71.813.91.76.91.26.50.4
uneven-aged17.71.133.12.020.62.036.02.628.12.232.92.325.70.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202167/188405
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: protection forest region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
stand stabilitystand age (classes of 40 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
critical0 (unstocked)..0.7710.7710.7711.158..3.233
1-403.6323.6313.1335.5254.5274.42724.712
41-802.1411.1581.5513.4312.8353.23314.216
81-1202.9351.4500.771..1.158..6.024
121-160..2.2411.0582.1411.158..6.323
over 160..0.41000.7711.058....2.141
uneven-aged1.4505.4261.7443.1330.7712.83515.215
total10.01914.8159.51915.81411.21710.41871.77
less stable0 (unstocked)0.41000.7710.7710.31001.1580.41003.532
1-4043.6915.91517.01410.01811.31714.915112.75
41-8027.51114.4159.0194.8266.02422.31284.06
81-12039.4918.41310.7173.8307.7214.62784.56
121-16015.41515.9158.6196.5229.5193.53159.48
over 1603.2336.1242.8356.5225.6255.02629.211
uneven-aged21.51329.91013.91515.11414.51523.711118.55
total151.04101.3562.6647.0755.6774.35491.82
stable0 (unstocked)2.9352.5381.1581.4502.1411.45011.418
1-4053.7814.4158.6206.22310.5189.219102.66
41-8046.1810.8187.6216.9226.72317.31495.56
81-12074.8614.81519.3125.1258.8196.723129.55
121-16036.1108.3209.3193.13312.3164.62773.87
over 1605.4268.3215.9245.82415.1155.72546.29
uneven-aged54.0833.91012.51623.01126.71124.111174.24
total273.0293.1564.3651.6782.1569.16633.12
total0 (unstocked)3.2334.0302.4382.4384.2281.84518.014
1-40100.9533.91028.71021.71226.21128.510240.04
41-8075.8626.31118.11315.11415.41442.98193.74
81-120117.0534.6930.798.91917.51311.317220.04
121-16051.5826.31119.01311.71622.9118.220139.55
over 1608.62014.8159.31913.41520.71210.61877.56
uneven-aged76.9669.2628.11041.2841.8850.67307.93
total434.01209.22136.52114.43148.92153.821196.71
© WSL, Swiss National Forest Inventory, 15.07.2015 #202168/188406
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: economic region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
stand stability
criticalless stablestabletotal
economic regionstand age (classes of 40 years) %± %± %± %±
Western Jura0 (unstocked).0.0.0.01.00.60.70.4
1-4030.014.522.33.76.51.411.81.6
41-8010.09.517.73.313.62.014.81.7
81-12040.015.520.83.623.22.522.82.0
121-160.0.013.93.018.12.316.41.8
over 160.0.03.91.73.11.03.30.9
uneven-aged20.012.721.53.634.52.830.32.2
total100.0.100.0.100.0.100.0.
Eastern Jura0 (unstocked).0.0.0.0.0.0.0.0
1-4050.035.540.97.417.14.326.34.0
41-80.0.015.95.525.05.021.33.7
81-120.0.031.87.032.85.431.94.2
121-160.0.04.53.213.23.99.82.7
over 160.0.0.0.02.61.81.61.2
uneven-aged50.035.56.83.89.23.39.02.6
total100.0.100.0.100.0.100.0.
Western Plateau0 (unstocked).0.0.0.05.42.63.41.7
1-40.0.026.86.926.75.126.14.0
41-8033.327.322.06.525.45.124.44.0
81-12066.727.324.46.722.54.824.33.9
121-160.0.07.34.12.71.94.21.9
over 160.0.02.42.44.02.33.41.7
uneven-aged.0.017.15.913.33.914.33.2
total100.0.100.0.100.0.100.0.
Central Plateau0 (unstocked).0.01.21.2.0.00.40.4
1-4016.715.231.65.035.54.233.53.2
41-8050.020.415.13.915.53.216.22.5
81-12033.319.326.74.823.73.725.12.9
121-160.0.013.93.714.53.113.92.3
over 160.0.01.21.2.0.00.40.4
uneven-aged.0.010.43.310.72.710.32.0
total100.0.100.0.100.0.100.0.
Eastern Plateau0 (unstocked).0.0.0.00.50.50.30.3
1-4071.417.130.64.227.53.329.72.6
41-8014.313.220.73.716.42.718.02.2
81-120.0.029.84.236.03.532.82.6
121-160.0.06.62.39.02.17.91.5
over 160.0.01.71.20.50.50.90.5
uneven-aged14.313.210.72.810.12.210.41.7
total100.0.100.0.100.0.100.0.
Western Pre-Alps0 (unstocked).0.0.0.05.33.02.41.4
1-4014.313.318.65.121.15.419.53.6
41-8014.313.325.55.715.74.820.33.6
81-120.0.028.85.917.65.122.03.7
121-16014.313.310.13.93.52.57.32.4
over 160.0.05.12.97.03.45.72.1
uneven-aged57.118.811.84.229.86.122.83.8
total100.0.100.0.100.0.100.0.
Central Pre-Alps0 (unstocked)8.35.7.0.01.61.11.40.7
1-4016.77.613.93.014.23.114.22.1
41-808.35.76.92.211.02.88.91.7
81-12012.56.818.53.415.73.216.72.2
121-16020.88.320.83.69.42.615.72.2
over 160.0.05.42.08.72.56.41.5
uneven-aged33.39.634.64.239.44.336.72.9
total100.0.100.0.100.0.100.0.
Eastern Pre-Alps0 (unstocked)20.012.71.11.11.81.32.41.0
1-4030.014.524.24.515.53.519.92.8
41-8010.09.516.53.99.12.712.32.3
81-12020.012.723.14.434.64.528.93.1
121-160.0.016.53.916.43.515.62.5
over 160.0.03.31.96.42.34.71.5
uneven-aged20.012.715.43.816.43.516.12.5
total100.0.100.0.100.0.100.0.
Northwestern Alps0 (unstocked).0.02.21.52.71.92.31.1
1-4050.015.916.33.913.54.017.12.8
41-80.0.017.44.09.53.413.12.5
81-12010.09.510.93.314.94.112.52.5
121-160.0.011.93.412.13.811.32.4
over 16010.09.57.62.810.83.69.12.2
uneven-aged30.014.533.74.936.55.634.63.6
total100.0.100.0.100.0.100.0.
Central Alps0 (unstocked).0.0.0.0.0.0.0.0
1-4037.817.237.27.97.84.424.04.7
41-8013.312.318.36.321.36.719.24.3
81-120.0.0.0.023.56.910.63.4
121-16024.515.213.05.513.15.514.23.8
over 16012.211.57.84.410.55.09.43.2
uneven-aged12.211.523.76.923.76.922.64.6
total100.0.100.0.100.0.100.0.
Northeastern Alps0 (unstocked).0.02.02.02.72.72.11.5
1-4033.315.822.05.910.85.118.74.0
41-8022.213.98.03.810.85.110.43.1
81-120.0.020.05.724.37.119.84.1
121-16011.110.510.04.310.85.110.43.1
over 16011.110.54.02.816.26.19.43.0
uneven-aged22.213.934.06.724.37.129.24.7
total100.0.100.0.100.0.100.0.
Southwestern Alps0 (unstocked)4.33.00.70.72.71.32.10.8
1-4035.07.021.33.512.02.719.02.2
41-8021.76.110.22.613.32.813.21.9
81-120.0.08.02.310.02.47.81.5
121-16013.05.013.83.06.01.910.21.7
over 1606.53.613.83.011.32.611.71.8
uneven-aged19.55.832.14.044.64.136.02.6
total100.0.100.0.100.0.100.0.
Southeastern Alps0 (unstocked)9.45.21.91.12.61.02.80.8
1-4040.38.720.33.212.72.217.61.8
41-8025.27.710.72.58.11.810.41.5
81-1209.45.213.82.710.72.011.81.6
121-1609.45.217.13.015.02.315.41.8
over 160.0.010.12.418.42.513.91.7
uneven-aged6.34.326.03.532.53.128.12.2
total100.0.100.0.100.0.100.0.
Southern Alps0 (unstocked).0.00.50.52.11.01.20.5
1-4042.19.020.02.813.42.418.51.9
41-8030.68.530.13.225.13.127.92.2
81-120.0.06.11.69.72.17.31.2
121-160.0.04.81.56.71.85.31.1
over 160.0.06.71.78.22.06.91.2
uneven-aged27.28.231.93.234.93.432.92.3
total100.0.100.0.100.0.100.0.
Switzerland0 (unstocked)4.41.40.70.21.80.31.50.2
1-4034.53.322.81.116.10.919.90.7
41-8019.52.817.11.015.20.816.30.6
81-1208.52.017.21.020.50.918.40.7
121-1608.82.012.00.911.60.811.60.5
over 1602.91.25.90.67.30.66.50.4
uneven-aged21.32.924.11.127.51.025.70.7
total100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202169/188407
NFI4b
forest area
stand stability · stand age (classes of 40 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest
grid: grid NFI4 2009-2013
state 2009/13
stand stability
criticalless stablestabletotal
economic regionstand age (classes of 40 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura0 (unstocked)....1.1581.158
1-401.15810.4186.82318.213
41-800.41008.22014.31522.812
81-1201.4509.61924.31135.39
121-160..6.42318.91325.411
over 160..1.8453.2335.026
uneven-aged0.77110.01836.1946.88
total3.63146.48104.74154.72
Eastern Jura0 (unstocked)........
1-400.41007.1225.12612.715
41-80..2.8377.52110.318
81-120..5.5259.81815.414
121-160..0.8704.0304.728
over 160....0.8700.870
uneven-aged0.41001.2572.8374.429
total0.87017.41230.0748.22
Western Plateau0 (unstocked)....1.6491.649
1-40..4.5298.22112.716
41-800.41003.7327.82111.917
81-1200.8704.1306.92311.817
121-160..1.2570.8702.144
over 160..0.41001.2571.649
uneven-aged..2.9374.1316.923
total1.25716.91330.6848.73
Central Plateau0 (unstocked)..0.3100..0.3100
1-400.31008.41814.41323.110
41-800.9574.0276.32211.215
81-1200.6717.1209.61717.412
121-160..3.7285.9229.617
over 160..0.3100..0.3100
uneven-aged..2.8334.3267.120
total1.94026.7940.5669.12
Eastern Plateau0 (unstocked)....0.41000.4100
1-401.84413.21618.61333.69
41-800.41008.91911.11720.412
81-120..12.91624.31137.28
121-160..2.9356.1248.919
over 160..0.7710.41001.158
uneven-aged0.41004.6276.82211.817
total2.53743.3767.65113.32
Western Pre-Alps0 (unstocked)....1.1571.157
1-400.41004.0294.4288.919
41-800.41005.6243.3339.218
81-120..6.3233.73010.017
121-1600.41002.2400.7703.333
over 160..1.1571.5492.637
uneven-aged1.5492.6376.32310.317
total2.63721.81021.11045.54
Central Pre-Alps0 (unstocked)0.771..0.7711.450
1-401.4506.5236.52314.315
41-800.7713.2335.0269.019
81-1201.1588.6207.22216.813
121-1601.8449.7184.32815.814
over 160..2.5373.9306.523
uneven-aged2.93516.11417.91336.98
total8.62046.6745.67100.82
Eastern Pre-Alps0 (unstocked)0.7710.41000.7711.844
1-401.1577.9216.12315.014
41-800.41005.4253.6319.319
81-1200.7717.52113.61521.811
121-160..5.4256.42311.816
over 160..1.1572.5373.631
uneven-aged0.7715.0266.42312.116
total3.63132.5839.3775.33
Northwestern Alps0 (unstocked)..0.7710.7711.450
1-401.8445.4253.63110.717
41-80..5.7242.5378.220
81-1200.41003.6313.9307.920
121-160..3.9293.2337.121
over 1600.41002.5372.9355.724
uneven-aged1.15711.1179.71821.811
total3.63132.9826.51062.94
Central Alps0 (unstocked)........
1-401.1584.9261.0577.021
41-800.41002.4372.8355.624
81-120....3.1323.132
121-1600.7701.7441.7444.127
over 1600.31001.0571.4492.734
uneven-aged0.31003.1323.1326.621
total2.83513.21413.11429.17
Northeastern Alps0 (unstocked)..0.41000.41000.771
1-401.1573.9291.4496.422
41-800.7701.4491.4493.630
81-120..3.6303.2326.821
121-1600.41001.8441.4503.631
over 1600.41000.7702.1403.232
uneven-aged0.7706.1233.23210.017
total3.23217.91113.31434.45
Southwestern Alps0 (unstocked)0.7710.31001.4502.438
1-405.52510.0186.22321.712
41-803.4314.8266.92215.114
81-120..3.8305.1258.919
121-1602.1416.5223.13311.716
over 1601.0586.5225.82413.415
uneven-aged3.13315.11423.01141.28
total15.81447.0751.67114.43
Southeastern Alps0 (unstocked)1.1581.1582.1414.228
1-404.52711.31710.51826.211
41-802.8356.0246.72315.414
81-1201.1587.7218.81917.513
121-1601.1589.51912.31622.911
over 160..5.62515.11520.712
uneven-aged0.77114.51526.71141.88
total11.21755.6782.15148.92
Southern Alps0 (unstocked)..0.41001.4501.845
1-404.42714.9159.21928.510
41-803.23322.31217.31442.98
81-120..4.6276.72311.317
121-160..3.5314.6278.220
over 160..5.0265.72510.618
uneven-aged2.83523.71124.11150.67
total10.41874.3569.16153.82
Switzerland0 (unstocked)3.2333.53211.61818.314
1-4024.812112.45102.06239.24
41-8014.01684.4696.46194.94
81-1206.12484.96130.35221.24
121-1606.32359.3873.57139.15
over 1602.14129.31146.6977.96
uneven-aged15.315118.85174.54308.63
total71.77492.52634.921199.11
© WSL, Swiss National Forest Inventory, 15.07.2015 #202170/188408
NFI1–NFI2
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 1983/85–1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %±
upper subalpine....6.2.6.62.015.84.78.01.9
lower subalpine-11.04.8-1.04.40.53.1-0.62.210.03.1-0.31.6
upper montane6.93.0-7.59.98.13.04.22.511.43.66.61.5
lower montane3.32.05.42.78.83.84.52.76.75.85.61.4
colline/submontane4.82.54.42.2-0.54.41.73.79.54.34.31.4
total3.41.44.41.75.61.82.31.210.12.14.40.7
© WSL, Swiss National Forest Inventory, 15.07.2015 #202171/188409
NFI1–NFI2
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2
grid: 1.4 x 1.4 km grid
change 1983/85–1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..-3.412.610.99.39.42.63.72.313.43.46.81.6
lower subalpine-1.83.22.52.2-8.93.94.13.10.22.110.22.21.01.2
upper montane4.32.36.11.94.03.65.93.11.52.810.52.65.31.1
lower montane3.81.510.13.46.32.710.14.63.24.020.89.76.41.2
colline/submontane4.01.42.23.90.94.55.85.511.06.213.73.14.91.1
total3.70.95.41.31.81.86.01.72.01.313.32.04.70.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202172/188410
NFI1–NFI2
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2
grid: 1.4 x 1.4 km grid
change 1983/85–1993/95
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %±
upper subalpine....17.96.45.31.813.43.46.91.6
lower subalpine-1.73.6-2.25.7-0.92.61.01.510.22.20.91.2
upper montane5.62.4-6.97.06.32.03.02.010.52.65.31.1
lower montane4.21.93.52.28.32.37.03.220.89.76.41.2
colline/submontane5.51.93.41.70.93.56.33.313.73.14.91.1
total4.51.13.11.34.71.23.31.013.32.04.70.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202173/188411
NFI1–NFI2
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 1983/85–1993/95
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..10.83.5..6.23.96.62.315.84.78.01.8
lower subalpine-9.64.23.12.8-8.34.64.74.5-3.52.910.03.1-0.31.6
upper montane5.33.05.72.59.94.91.25.05.33.611.43.66.61.5
lower montane4.51.710.14.33.93.68.57.16.25.16.75.85.61.4
colline/submontane4.51.7-1.45.43.34.3-0.38.1-0.26.59.54.34.31.4
total4.01.15.21.73.22.44.02.61.51.710.12.14.40.7
© WSL, Swiss National Forest Inventory, 15.07.2015 #202174/188412
NFI2–NFI3
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI2/NFI3
grid: 1.4 x 1.4 km grid
change 1993/95–2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %±
upper subalpine....24.331.112.41.821.83.514.41.7
lower subalpine12.93.99.311.2-1.82.77.41.719.72.46.41.3
upper montane8.42.5-0.814.1-3.32.27.72.217.12.84.71.2
lower montane3.71.8-6.42.8-2.92.47.02.715.54.20.51.2
colline/submontane-2.72.6-5.91.6-4.23.28.13.913.82.5-1.81.1
total3.41.3-5.81.4-2.91.38.01.116.61.42.60.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202175/188413
NFI2–NFI3
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 1993/95–2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..-8.113.9..17.34.212.22.824.74.815.32.2
lower subalpine8.34.20.83.47.63.67.63.24.14.216.93.05.61.7
upper montane6.03.5-6.73.35.13.613.26.57.44.916.63.93.61.7
lower montane-3.62.3-5.73.93.35.35.05.516.73.620.23.6-0.61.7
colline/submontane-5.31.90.76.02.44.55.46.90.511.311.53.6-2.31.5
total-2.91.3-3.61.94.72.39.92.37.42.316.01.91.70.8
© WSL, Swiss National Forest Inventory, 15.07.2015 #202176/188414
NFI2–NFI3
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 1993/95–2004/06
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %±
upper subalpine....-27.4.14.22.324.74.815.32.2
lower subalpine7.24.214.013.71.63.45.52.316.93.05.61.7
upper montane7.03.2-2.519.8-4.43.07.42.916.63.93.71.7
lower montane2.82.5-8.63.5-4.43.58.74.320.23.6-0.61.7
colline/submontane-2.14.0-6.62.1-3.44.17.25.111.53.6-2.21.5
total2.41.8-7.01.8-3.01.77.51.416.01.91.70.8
© WSL, Swiss National Forest Inventory, 15.07.2015 #202177/188415
NFI2–NFI3
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI2/NFI3
grid: 1.4 x 1.4 km grid
change 1993/95–2004/06
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..23.517.59.79.813.93.110.92.221.83.514.41.7
lower subalpine12.53.7-1.02.64.63.59.82.28.12.919.72.46.41.3
upper montane7.62.6-4.72.52.72.811.24.412.03.617.12.84.61.2
lower montane-1.71.7-4.62.73.73.47.93.58.52.615.54.20.51.2
colline/submontane-5.01.43.84.4-2.33.78.66.3-0.17.913.82.5-1.81.1
total-1.71.0-2.71.42.81.710.51.69.11.716.61.42.60.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202178/188416
NFI3–NFI4b
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 2004/06–2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %±
upper subalpine....7.2.2.91.79.01.64.01.4
lower subalpine6.22.8-8.99.92.83.13.91.84.41.93.71.4
upper montane0.92.20.46.0-0.42.13.81.83.62.41.71.1
lower montane-1.12.3-2.72.72.32.4-4.94.75.01.9-1.01.4
colline/submontane-7.13.3-4.12.0-3.54.0-2.73.05.31.9-3.41.3
total-2.11.5-3.61.60.81.31.91.24.91.00.10.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202179/188417
NFI3–NFI4b
change: stand density (SDI)
altitudinal vegetation zone
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
change 2004/06–2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
altitudinal vegetation zone %± %± %± %± %± %± %±
upper subalpine..5.75.4..1.23.74.01.59.01.64.01.4
lower subalpine3.63.05.83.55.82.41.62.20.93.04.41.93.71.4
upper montane0.92.12.81.8-3.63.36.62.14.72.73.62.41.81.1
lower montane-1.91.80.22.9-2.55.4-2.54.32.13.55.01.9-1.11.4
colline/submontane-5.01.7-1.74.2-2.64.2-0.76.3-9.96.15.31.9-3.41.3
total-2.91.12.81.5-1.32.22.21.41.91.54.91.00.20.6
© WSL, Swiss National Forest Inventory, 15.07.2015 #202180/188418
NFI1
forest area
stand age (classes of 40 years) · predominant tree species
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI1
state 1983/85
stand age (classes of 40 years)
0 (unstocked)1-4041-8081-120121-160over 160uneven-agedtotal
predominant tree species %± %± %± %± %± %± %± %±
n/a5.21.165.32.42.30.80.30.30.30.30.80.425.92.2100.0.
spruce0.80.19.60.410.70.419.60.612.20.58.20.438.90.7100.0.
fir0.30.28.20.816.21.125.31.28.20.83.50.538.21.4100.0.
pine0.20.29.61.417.61.821.41.98.91.31.70.640.62.3100.0.
larch0.60.311.01.27.51.09.71.18.41.114.21.348.71.9100.0.
stone pine0.90.90.90.94.62.05.52.22.71.616.43.569.14.4100.0.
other conifers.0.028.19.016.07.316.07.34.03.9.0.036.09.6100.0.
beech0.20.19.60.724.61.029.11.18.50.61.30.326.61.0100.0.
maple1.10.829.73.422.23.16.51.82.21.1.0.038.33.6100.0.
ash0.40.428.62.726.52.79.91.80.40.4.0.034.22.9100.0.
oak0.40.416.22.423.92.814.62.39.01.92.61.033.33.1100.0.
chestnut.0.043.13.319.82.73.61.23.11.23.11.227.33.0100.0.
other broadleaves0.40.350.62.116.81.63.20.81.30.50.40.327.41.9100.0.
total0.70.115.10.314.80.318.80.49.00.35.50.236.20.5100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202181/188419
NFI1
forest area
stand age (classes of 40 years) · predominant tree species
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 1983/85
stand age (classes of 40 years)
0 (unstocked)1-4041-8081-120121-160over 160uneven-agedtotal
predominant tree species %± %± %± %± %± %± %± %±
n/a6.42.561.85.02.21.5.0.0.0.02.11.527.54.6100.0.
spruce0.50.211.10.911.70.919.61.111.40.98.00.737.81.3100.0.
fir0.60.48.41.513.61.929.32.58.51.53.31.036.32.6100.0.
pine.0.011.72.820.33.622.93.77.82.41.51.135.74.2100.0.
larch.0.011.42.49.22.29.12.25.21.715.92.849.23.8100.0.
stone pine.0.0.0.06.94.73.43.43.43.424.17.962.19.0100.0.
other conifers.0.043.518.828.317.014.113.1.0.0.0.014.113.1100.0.
beech.0.010.21.324.71.927.21.98.51.20.70.428.82.0100.0.
maple.0.024.46.118.35.510.34.44.22.9.0.042.87.1100.0.
ash.0.021.94.431.05.011.43.41.11.1.0.034.65.1100.0.
oak.0.015.95.124.16.124.06.04.02.72.02.030.06.5100.0.
chestnut.0.043.56.426.85.73.32.33.32.31.71.721.45.3100.0.
other broadleaves1.51.048.64.218.53.35.01.81.41.01.41.023.63.6100.0.
total0.50.115.20.615.60.719.40.78.40.55.40.435.30.9100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202182/188420
NFI2
forest area
stand age (classes of 40 years) · predominant tree species
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest
grid: terrestrial grid NFI2
state 1993/95
stand age (classes of 40 years)
0 (unstocked)1-4041-8081-120121-160over 160uneven-agedtotal
predominant tree species %± %± %± %± %± %± %± %±
n/a15.82.571.23.13.31.21.40.80.90.70.90.76.51.7100.0.
spruce0.90.213.70.711.70.623.60.818.00.713.60.618.50.7100.0.
fir0.30.210.31.214.51.433.21.818.61.54.40.818.71.5100.0.
pine0.40.412.12.119.32.530.22.913.32.112.02.112.82.1100.0.
larch0.90.515.51.810.41.512.51.614.11.724.22.122.42.0100.0.
stone pine.0.04.02.36.72.913.33.910.73.630.65.334.75.5100.0.
other conifers.0.055.111.114.87.925.29.7.0.0.0.04.94.8100.0.
beech0.50.210.70.925.71.338.31.414.21.01.40.39.20.8100.0.
maple2.41.437.84.428.24.013.03.04.11.8.0.014.53.2100.0.
ash.0.034.63.433.33.420.52.91.60.90.50.59.52.1100.0.
oak.0.016.33.230.64.025.53.811.22.78.32.48.12.3100.0.
chestnut0.80.833.44.229.44.17.22.37.22.33.21.618.93.5100.0.
other broadleaves0.60.458.42.825.02.44.21.10.60.40.30.310.81.7100.0.
total1.20.118.60.516.70.524.40.514.30.49.20.415.70.4100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202183/188421
NFI2
forest area
stand age (classes of 40 years) · predominant tree species
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: grid NFI4 2009-2013
state 1993/95
stand age (classes of 40 years)
0 (unstocked)1-4041-8081-120121-160over 160uneven-agedtotal
predominant tree species %± %± %± %± %± %± %± %±
n/a16.64.170.54.94.72.32.41.6.0.0.0.05.92.5100.0.
spruce0.20.112.80.912.50.924.41.219.51.113.30.917.21.0100.0.
fir.0.010.31.715.32.031.22.620.12.23.11.020.02.2100.0.
pine.0.011.83.121.63.928.04.316.23.510.72.911.73.0100.0.
larch2.21.112.12.414.32.615.52.713.22.523.73.218.92.9100.0.
stone pine.0.0.0.09.15.012.15.712.15.736.38.430.48.0100.0.
other conifers.0.050.317.737.217.112.511.7.0.0.0.0.0.0100.0.
beech0.50.39.31.227.21.937.52.013.61.42.30.69.61.2100.0.
maple4.02.837.86.823.96.016.35.32.12.0.0.016.05.2100.0.
ash.0.023.34.437.45.028.64.7.0.01.11.19.63.0100.0.
oak.0.015.44.729.36.026.15.813.84.53.52.411.94.2100.0.
chestnut1.71.735.66.227.25.86.83.38.53.61.71.718.45.0100.0.
other broadleaves.0.058.84.125.73.64.31.7.0.0.0.011.22.6100.0.
total0.90.216.80.718.00.725.20.815.10.78.80.515.10.6100.0.
© WSL, Swiss National Forest Inventory, 15.07.2015 #202184/188422
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