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NFI4
total stem number by cause of damage
slope (20% classes) · cause of damage on tree (10 classes)
unit of reference: protection forest region
unit: n/ha
unit of evaluation: accessible forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern Alps Switzerland
slope (20% classes)cause of damage on tree (10 classes) n/ha± % n/ha± % n/ha± % n/ha± % n/ha± % n/ha± % n/ha± %
to 20%no visible damage3233390834994862032910303143322
fire0710.0.1970.0.058
rockfall01000.0.0.0.0.0100
various damages91363013517651444956911
indeterminable32542133022463254257119344
timber harvest1186297506972990.108
human, other41444810523975571059413
weather314532564149618501543413
lying living trees0431700.796744398127
dead trees21637182823633638266432256
total..............
21-40 %no visible damage135234130726133629121832128928133129129511
fire32980299010011770100172904251
rockfall2421441111761141868017647196791669376
various damages40943483491143313235102511103842
indeterminable22252206332245323249259392904523117
timber harvest33159391242318081931122232942480
human, other1720928135251671621115193201702180
weather2511548773911660814410461874637
lying living trees71907163101952020023162141581372
dead trees22846288452315330055236522915625221
total..............
over 100%no visible damage2743420220276212971624315209112357
fire0.2982980.0.160147
rockfall1864210129190246535513362198712
various damages0.75794574913421038922
indeterminable9554562456245420702272176510
timber harvest0.0.0.0.0.0990100
human, other0.2984980.0.099165
weather0.183616411133133319231615
lying living trees0.48314432139498539823
dead trees9739107189920712287186218809
total..............
totalno visible damage3232337334033144318332033251
fire0720560710540100438131
rockfall6161813241418159152410146
various damages8899121491410111312105
indeterminable373494516605624745512
timber harvest12691271522832214075
human, other51171571742542042157
weather410109914159111117894
lying living trees11921832261862141739
dead trees304645546746556726512
total..............
© WSL, Swiss National Forest Inventory, 02.12.2020 #893759/359977
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