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NFI4
forest area
mean age of 100 largest trees · predominant tree species
unit of reference: protection forest region
unit: %
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
mean age of 100 largest treespredominant tree species %± %± %± %± %± %± %±
n/an/a3.40.42.60.53.10.72.10.71.00.40.80.32.50.2
spruce0.0.0.0.0.0.0.0.0.0.0.0.0.0.
fir0.0.0.0.0.0.0.0.0.0.0.0.0.0.
pine0.0.0.0.0.0.0.0.0.0.0.0.0.0.
larch0.0.0.0.0.0.0.0.0.0.0.0.0.0.
stone pine0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other conifers0.0.0.0.0.0.0.0.0.0.0.0.0.0.
beech0.0.0.0.0.0.0.0.0.0.0.0.0.0.
maple0.0.0.0.0.0.0.0.0.0.0.0.0.0.
ash0.0.0.0.0.0.0.0.0.0.0.0.0.0.
oak0.0.0.0.0.0.0.0.0.0.0.0.0.0.
chestnut0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other broadleaves0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total3.40.42.60.53.10.72.10.71.00.40.80.32.50.2
up to 40n/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
spruce4.80.52.70.53.90.81.10.52.10.60.60.33.20.2
fir1.70.30.70.30.90.40.20.20.20.20.0.0.90.1
pine0.40.10.10.10.0.0.70.40.20.20.0.0.30.1
larch0.30.10.30.20.20.21.50.60.70.30.30.20.50.1
stone pine0.0.0.0.0.0.0.0.0.0.0.0.0.0.
other conifers0.10.10.0.0.0.0.0.0.0.0.0.0.10.0
beech2.90.40.90.31.10.40.20.20.20.20.60.31.50.2
maple1.50.31.10.31.20.50.60.30.10.10.50.31.10.1
ash1.20.20.30.20.90.40.80.40.50.30.80.40.80.1
oak0.50.20.0.0.0.0.0.0.0.0.0.0.20.1
chestnut0.0.0.0.0.0.0.0.0.0.1.10.40.10.0
other broadleaves1.40.31.10.41.80.61.60.62.00.63.70.71.70.2
total14.90.77.30.89.91.26.61.15.90.97.61.010.40.4
41 - 80n/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
spruce7.40.69.31.010.01.24.60.98.01.13.20.77.30.4
fir3.60.44.40.71.60.50.60.30.20.20.50.32.50.2
pine0.90.20.30.20.20.23.40.81.20.40.20.20.90.1
larch0.30.10.20.20.0.3.10.82.20.61.90.50.90.1
stone pine0.0.0.0.0.0.0.0.0.20.20.0.0.00.0
other conifers0.20.10.0.0.0.0.0.0.0.0.0.0.10.0
beech8.70.63.30.64.80.91.50.50.80.48.11.15.70.3
maple1.50.31.30.42.40.60.40.30.50.31.30.51.30.2
ash2.40.30.70.31.60.50.80.40.80.32.50.61.70.2
oak1.20.20.20.20.0.2.10.70.0.1.60.50.90.1
chestnut0.00.00.0.0.0.0.20.20.0.8.31.11.00.1
other broadleaves1.50.30.50.20.60.33.80.80.90.411.51.32.50.2
total27.80.920.41.321.01.620.41.814.71.439.11.924.90.6
81 - 120n/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
spruce9.40.615.51.215.81.511.11.415.81.54.30.811.50.4
fir6.60.58.10.95.50.91.50.51.70.51.00.45.10.3
pine1.30.20.30.21.00.42.40.72.80.70.30.21.20.2
larch0.20.10.0.0.40.35.41.03.10.73.30.71.40.2
stone pine0.0.0.0.0.0.0.60.30.70.30.0.0.10.0
other conifers0.30.10.0.0.0.0.0.0.0.0.0.0.10.0
beech15.90.88.20.98.41.11.30.51.70.57.21.09.70.4
maple0.80.20.50.20.50.30.20.20.0.0.0.0.50.1
ash1.30.30.30.21.70.50.60.30.20.20.40.20.90.1
oak1.40.30.20.20.20.20.40.30.20.20.80.40.80.1
chestnut0.0.0.0.0.0.0.40.30.0.5.10.90.60.1
other broadleaves0.70.20.50.20.0.0.20.20.0.0.60.30.50.1
total38.01.033.71.533.51.924.11.926.11.822.91.732.30.6
121 - 160n/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
spruce5.00.518.01.215.01.510.41.319.61.67.01.010.80.4
fir4.50.55.10.74.80.90.80.40.30.21.20.43.40.2
pine0.30.10.30.20.70.32.10.72.70.70.20.20.80.1
larch0.0.0.0.0.40.35.91.03.30.73.50.71.40.2
stone pine0.0.0.10.10.0.1.20.51.30.40.20.20.30.1
other conifers0.00.00.0.0.20.20.0.0.20.20.0.0.10.0
beech3.60.42.80.53.10.70.0.0.30.22.20.62.50.2
maple0.10.10.0.0.30.20.0.0.0.0.0.0.10.0
ash0.10.10.0.0.20.20.0.0.0.0.0.0.10.0
oak0.50.20.0.0.0.0.20.20.30.20.30.20.30.1
chestnut0.0.0.0.0.0.0.0.0.0.1.50.50.20.1
other broadleaves0.0.0.0.0.0.0.20.20.0.0.20.20.00.0
total14.10.726.31.424.51.720.81.827.91.816.21.519.90.5
over 160n/a0.0.0.0.0.0.0.0.0.0.0.0.0.0.
spruce1.30.27.50.87.21.111.01.416.31.56.71.06.30.3
fir0.40.11.40.40.30.20.80.40.20.21.00.40.60.1
pine0.0.0.30.20.0.0.80.41.00.40.20.20.30.1
larch0.0.0.0.0.0.11.41.43.70.84.30.82.00.2
stone pine0.0.0.0.0.20.22.00.63.20.70.0.0.60.1
other conifers0.0.0.0.0.0.0.0.0.0.0.0.0.0.
beech0.20.10.20.20.20.20.0.0.0.0.50.30.20.1
maple0.0.0.10.10.0.0.0.0.0.0.0.0.00.0
ash0.0.0.0.0.0.0.0.0.0.0.0.0.0.
oak0.00.00.0.0.0.0.0.0.0.0.0.0.00.0
chestnut0.0.0.0.0.0.0.0.0.0.0.80.40.10.0
other broadleaves0.0.0.0.0.0.0.0.0.0.0.0.0.0.
total1.90.39.61.07.91.126.01.924.41.713.41.310.10.4
totaln/a3.40.42.60.53.10.72.10.71.00.40.80.32.50.2
spruce27.81.053.11.651.82.038.22.161.81.921.81.639.10.6
fir16.90.819.61.313.11.43.90.82.50.63.50.712.60.4
pine2.90.41.40.41.80.69.41.37.71.10.80.43.50.2
larch0.90.20.60.20.90.427.12.013.01.413.21.36.10.3
stone pine0.0.0.10.10.20.23.80.95.30.90.20.21.00.1
other conifers0.70.20.0.0.20.20.0.0.20.20.0.0.30.1
beech31.21.015.41.217.61.53.00.73.00.718.61.619.60.5
maple3.90.43.10.64.40.91.20.50.70.31.80.52.90.2
ash5.00.51.40.44.40.82.10.61.40.53.70.83.50.2
oak3.60.40.50.20.20.22.70.70.50.32.80.72.10.2
chestnut0.00.00.0.0.0.0.50.30.0.16.91.42.00.2
other broadleaves3.50.42.10.52.30.65.91.02.90.716.01.54.80.3
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #817823/284154
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