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NFI4
forest area
mean age of 100 largest trees · predominant tree species
unit of reference: production region
unit: %
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
production region
JuraPlateauPre-AlpsAlpsSouthern Alps Switzerland
mean age of 100 largest treespredominant tree species %± %± %± %± %± %±
n/an/a100.0.100.0.100.0.100.0.100.0.100.0.
spruce0.0.0.0.0.0.0.0.0.0.0.0.
fir0.0.0.0.0.0.0.0.0.0.0.0.
pine0.0.0.0.0.0.0.0.0.0.0.0.
larch0.0.0.0.0.0.0.0.0.0.0.0.
stone pine0.0.0.0.0.0.0.0.0.0.0.0.
other conifers0.0.0.0.0.0.0.0.0.0.0.0.
beech0.0.0.0.0.0.0.0.0.0.0.0.
maple0.0.0.0.0.0.0.0.0.0.0.0.
ash0.0.0.0.0.0.0.0.0.0.0.0.
oak0.0.0.0.0.0.0.0.0.0.0.0.
chestnut0.0.0.0.0.0.0.0.0.0.0.0.
other broadleaves0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.
up to 40n/a0.0.0.0.0.0.0.0.0.0.0.0.
spruce29.95.033.13.039.25.232.13.48.62.930.01.7
fir9.73.311.92.111.53.42.21.10.0.7.31.0
pine7.22.81.70.81.11.13.31.30.0.2.50.6
larch0.0.3.01.12.21.614.82.69.73.16.61.0
stone pine0.0.0.0.0.0.0.50.50.0.0.10.1
other conifers2.21.60.80.60.0.0.0.0.0.0.60.3
beech22.04.617.52.511.53.43.81.45.22.311.91.2
maple10.83.49.81.911.33.47.51.96.42.59.01.1
ash7.12.88.21.86.82.76.91.910.03.17.81.0
oak3.72.12.81.00.0.0.0.0.0.1.40.4
chestnut0.0.0.0.0.0.0.0.9.83.11.30.4
other broadleaves7.42.911.22.016.24.028.83.350.45.221.41.5
total100.0.100.0.100.0.100.0.100.0.100.0.
41 - 80n/a0.0.0.0.0.0.0.0.0.0.0.0.
spruce20.72.730.32.446.63.343.62.68.91.730.61.2
fir14.82.411.61.618.82.63.10.91.00.69.20.8
pine3.51.23.40.91.40.88.71.50.40.43.80.5
larch0.50.51.80.70.0.11.21.79.61.75.10.6
stone pine0.0.0.0.0.0.0.90.50.0.0.20.1
other conifers0.40.41.10.50.0.0.60.40.0.0.50.2
beech36.63.226.82.319.32.68.21.519.62.421.21.1
maple6.21.65.31.26.71.75.11.22.91.05.20.6
ash8.01.88.61.54.41.44.81.16.61.56.60.6
oak5.31.53.71.00.0.3.81.04.01.23.40.5
chestnut0.0.0.30.30.0.0.30.319.02.43.80.5
other broadleaves4.01.37.11.32.71.19.61.627.92.710.50.8
total100.0.100.0.100.0.100.0.100.0.100.0.
81 - 120n/a0.0.0.0.0.0.0.0.0.0.0.0.
spruce24.42.125.42.246.42.552.82.319.33.136.11.1
fir18.01.916.71.925.52.26.41.14.21.615.10.8
pine3.00.83.60.90.50.48.01.31.20.83.70.4
larch0.40.30.80.50.0.13.81.619.63.05.60.5
stone pine0.0.0.0.0.0.1.90.60.0.0.50.2
other conifers0.50.31.10.50.0.0.0.0.0.0.30.1
beech44.32.439.02.523.62.211.31.428.33.528.91.0
maple2.10.72.10.71.30.60.90.40.0.1.40.3
ash2.30.74.81.11.90.72.50.71.30.92.70.4
oak3.20.94.21.00.60.40.80.44.41.62.40.4
chestnut0.0.0.0.0.0.0.60.419.33.11.90.3
other broadleaves1.60.62.40.80.30.31.10.52.41.21.40.3
total100.0.100.0.100.0.100.0.100.0.100.0.
121 - 160n/a0.0.0.0.0.0.0.0.0.0.0.0.
spruce37.33.433.34.762.92.965.22.342.54.654.41.5
fir31.63.332.44.723.62.65.01.06.32.316.91.1
pine2.91.20.0.1.60.87.11.20.90.93.70.6
larch0.0.0.0.0.0.13.31.625.74.07.80.8
stone pine0.0.0.0.0.40.43.50.90.80.81.50.4
other conifers0.0.1.01.00.40.40.20.20.0.0.30.2
beech24.73.026.34.410.71.94.31.013.03.212.41.0
maple1.00.70.0.0.0.0.50.30.0.0.40.2
ash0.0.2.01.40.40.40.0.0.0.0.30.2
oak2.51.15.02.20.0.0.70.41.71.21.40.3
chestnut0.0.0.0.0.0.0.0.8.22.60.80.3
other broadleaves0.0.0.0.0.0.0.20.21.00.90.20.1
total100.0.100.0.100.0.100.0.100.0.100.0.
over 160n/a0.0.0.0.0.0.0.0.0.0.0.0.
spruce72.27.948.115.678.05.059.62.545.75.160.12.0
fir12.25.742.115.616.14.42.30.86.42.55.81.0
pine0.0.0.0.4.42.52.90.92.11.52.70.7
larch0.0.0.0.0.0.24.52.236.05.021.61.7
stone pine0.0.0.0.0.0.9.71.50.0.6.31.0
other conifers0.0.0.0.0.0.0.0.0.0.0.0.
beech15.66.40.0.1.51.50.80.43.31.92.10.6
maple0.0.0.0.0.0.0.30.30.0.0.20.2
ash0.0.0.0.0.0.0.0.0.0.0.0.
oak0.0.9.89.30.0.0.0.0.0.0.20.2
chestnut0.0.0.0.0.0.0.0.6.52.61.00.4
other broadleaves0.0.0.0.0.0.0.0.0.0.0.0.
total100.0.100.0.100.0.100.0.100.0.100.0.
totaln/a3.30.53.80.52.90.52.90.42.20.53.00.2
spruce27.51.428.51.350.51.551.71.120.51.438.80.6
fir18.61.215.01.121.01.24.00.43.00.611.70.4
pine3.30.62.70.51.30.46.20.60.80.33.40.2
larch0.30.21.50.40.20.115.10.817.21.37.40.3
stone pine0.0.0.0.0.10.13.50.40.10.11.10.1
other conifers0.50.21.00.30.10.10.20.10.0.0.30.1
beech34.31.527.71.316.41.15.90.516.31.318.30.5
maple3.40.64.40.62.90.52.10.31.80.52.90.2
ash3.40.66.30.72.30.52.20.33.90.73.40.2
oak3.40.63.70.60.20.11.10.22.70.62.00.2
chestnut0.0.0.10.10.0.0.20.114.41.21.90.2
other broadleaves2.20.55.40.72.10.45.00.517.01.45.60.3
total100.0.100.0.100.0.100.0.100.0.100.0.
© WSL, Swiss National Forest Inventory, 11.07.2020 #817843/284174
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