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NFI4
basal area
rockfall SilvaProtect · altitudinal vegetation zone
unit of reference: protection forest region
unit: m²/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
rockfall SilvaProtectaltitudinal vegetation zone m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± % m²/ha± %
n/aupper subalpine0.0.27.23736.0017.81024.2917.81321.16
lower subalpine27.0531.3628.4823.11328.0624.01328.23
upper montane35.4435.1535.1721.31733.0820.91633.53
lower montane31.9337.7742.4723.31428.11223.71833.12
colline/submontane28.2235.5938.81114.52025.81130.41728.42
total30.1134.1334.8420.1728.0423.8830.01
inside perimeterupper subalpine0.0.0.0.0.0.24.03327.83460.5030.723
lower subalpine46.0030.72550.02936.61848.13029.53938.612
upper montane35.24733.61338.62036.42432.22334.01335.29
lower montane36.81040.12135.91621.22533.03029.61533.28
colline/submontane28.31624.83431.31620.12611.3.28.11826.810
total32.41132.71237.61129.81234.61630.7932.75
outside perimeterupper subalpine0.0.35.31729.1934.8637.01228.31033.96
lower subalpine44.6434.7634.6939.3534.8430.7635.22
upper montane36.4535.3438.3532.3531.2530.0433.72
lower montane35.2436.7539.0622.91031.8930.6934.23
colline/submontane28.1539.31039.3721.41028.41230.4530.73
total32.7335.7237.9333.7333.5330.2333.81
totalupper subalpine0.0.30.72131.4827.5630.3823.9827.94
lower subalpine27.7532.9431.1634.9431.9429.1531.92
upper montane35.6335.2337.0429.8531.8429.0433.72
lower montane32.6237.3440.0422.8830.1729.6733.52
colline/submontane28.2236.5738.5618.4926.3830.2528.92
total30.4134.9236.5229.3231.1228.9231.71
© WSL, Swiss National Forest Inventory, 17.06.2020 #875531/341863
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