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NFI4
forest area
urgency of next treatment (interview survey) · lower/higher altitudinal zones
unit of reference: protection forest region
unit: 1000 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
urgency of next treatment (interview survey)lower/higher altitudinal zones1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
0-1 yearlowlands46.663.7243.9221.0451.2411.73558.16
high altitude areas8.8159.1154.7202.8272.8261.83329.98
total55.3612.8128.6153.8234.1223.42488.05
2-5 yearslowlands135.3314.61113.4112.4293.3233.923172.93
high altitude areas21.6919.81014.3116.01812.2126.31780.15
total156.9334.4727.788.51515.41110.114253.02
6-10 yearslowlands100.2421.6914.7112.1302.7278.015149.43
high altitude areas21.0932.4715.01112.51214.5116.716102.24
total121.2354.1529.6714.61117.31014.811251.62
11-20 yearslowlands35.579.8148.9144.0212.4298.01568.65
high altitude areas11.41335.0715.21115.91013.4127.41698.44
total46.9644.8624.1819.9915.81115.411167.03
> 20 yearslowlands30.587.4167.71614.11113.01143.66116.24
high altitude areas11.91347.9629.9753.0577.3462.74282.72
total42.4755.3537.6667.1490.33106.23398.92
totallowlands348.1157.2448.5523.7822.6865.14565.11
high altitude areas74.74144.3279.0390.23120.2284.83593.21
total422.81201.41127.52113.82142.82150.021158.41
© WSL, Swiss National Forest Inventory, 22.06.2020 #799052/265384
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