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NFI4
forest area
rockfall SilvaProtect · basal area (standing live trees)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: accessible forest without shrub forest NFI1/NFI2/NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
rockfall SilvaProtect
n/ainside perimeteroutside perimetertotal
economic regionbasal area (standing live trees)1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jurato 19 m2/ha26.970.6584.62032.17
20-39 m2/ha54.051.93113.51169.34
40-59 m2/ha27.080.8508.81436.66
from 60 m2/ha5.5190.21001.1416.817
total113.323.42328.07144.81
Eastern Jurato 19 m2/ha12.3100.31000.65813.29
20-39 m2/ha19.980.0.3.72223.66
40-59 m2/ha6.9160.0.0.8507.815
from 60 m2/ha1.2400.0.0.0.1.240
total40.330.31005.11945.72
Western Plateauto 19 m2/ha13.490.0.1.73515.18
20-39 m2/ha16.490.0.1.93318.38
40-59 m2/ha9.0130.0.0.5709.413
from 60 m2/ha3.3240.0.1.0444.220
total42.030.0.5.01947.02
Central Plateauto 19 m2/ha19.470.21002.72622.37
20-39 m2/ha26.070.0.3.72229.76
40-59 m2/ha11.4120.0.2.32813.710
from 60 m2/ha2.7260.0.0.6583.323
total59.530.21009.21369.01
Eastern Plateauto 19 m2/ha34.450.0.1.73336.15
20-39 m2/ha39.160.0.2.72641.75
40-59 m2/ha21.780.0.1.63523.38
from 60 m2/ha4.5210.0.0.0.4.521
total99.620.0.6.018105.61
Western Pre-Alpsto 19 m2/ha5.5190.0.6.01811.511
20-39 m2/ha3.3240.21008.31511.711
40-59 m2/ha4.2200.0.6.61510.711
from 60 m2/ha2.6260.0.3.7216.315
total15.6100.210024.5740.33
Central Pre-Alpsto 19 m2/ha14.3100.21009.91324.37
20-39 m2/ha16.0100.47118.11034.56
40-59 m2/ha11.4130.210013.81125.47
from 60 m2/ha6.2180.0.4.62110.913
total47.950.85046.4595.12
Eastern Pre-Alpsto 19 m2/ha6.9170.0.6.11812.911
20-39 m2/ha11.9120.210012.41224.58
40-59 m2/ha8.9140.47011.01220.38
from 60 m2/ha5.2190.0.4.7199.913
total32.960.65834.2667.73
Northwestern Alpsto 19 m2/ha5.5180.8507.81514.210
20-39 m2/ha6.2170.85012.61119.68
40-59 m2/ha3.7231.3415.91710.812
from 60 m2/ha2.2300.3703.9216.416
total17.6103.22530.2651.13
Central Alpsto 19 m2/ha2.2290.21000.8493.223
20-39 m2/ha3.5221.0444.1208.613
40-59 m2/ha2.3280.8503.2226.315
from 60 m2/ha1.5340.8500.6572.824
total9.5122.7268.71220.95
Northeastern Alpsto 19 m2/ha2.2281.2415.0188.413
20-39 m2/ha2.4290.8515.2188.414
40-59 m2/ha1.8330.9452.2285.018
from 60 m2/ha1.2410.3703.3234.818
total7.6153.32415.8926.65
Southwestern Alpsto 19 m2/ha12.6123.02618.01033.66
20-39 m2/ha8.3151.93127.0737.26
40-59 m2/ha2.6261.24115.41019.29
from 60 m2/ha1.0440.8507.2158.913
total24.586.81667.7499.02
Southeastern Alpsto 19 m2/ha15.9100.47115.01131.37
20-39 m2/ha18.5101.73329.7749.95
40-59 m2/ha11.8120.47118.5930.77
from 60 m2/ha4.4210.4714.6209.514
total50.652.92667.84121.32
Southern Alpsto 19 m2/ha7.9152.42924.7835.07
20-39 m2/ha8.7154.42141.8654.85
40-59 m2/ha3.0262.03120.5925.68
from 60 m2/ha0.6580.8506.3177.716
total20.199.61493.33123.12
Switzerlandto 19 m2/ha179.339.315104.64293.22
20-39 m2/ha234.0213.412184.53431.92
40-59 m2/ha125.747.916111.34244.92
from 60 m2/ha42.273.52341.7787.44
total581.2134.17442.021057.41
© WSL, Swiss National Forest Inventory, 18.06.2020 #861347/327678
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