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NFI4
forest area
time of last treatment (classes of 10 years)
unit of reference: economic region
unit: 1000 ha
unit of evaluation: protection forest perimeter SilvaProtect: access. forest without shrub forest NFI3/NFI4
grid: 1.4 x 1.4 km grid
state2009/17
time of last treatment (classes of 10 years)
less than 10 years ago11-20 years ago21-30 years ago31-40 years ago41-50 years agoover 50 years agototal
economic region1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
Western Jura14.8115.6182.9252.4291.3384.82031.87
Eastern Jura2.5281.6350.21000.4710.21000.4715.419
Western Plateau3.6230.6570.21000.21000.4700.0.5.019
Central Plateau5.4182.1300.8500.8500.0.0.4709.413
Eastern Plateau3.5231.0451.0450.0.0.0.0.5586.018
Western Pre-Alps10.4135.3192.6262.5271.6333.32525.86
Central Pre-Alps24.3811.9124.3221.8351.5384.42148.25
Eastern Pre-Alps16.3108.5143.1253.1252.1303.12536.25
Northwestern Alps12.2125.2196.1172.7272.9266.11735.25
Central Alps4.5203.1241.8320.9441.0442.03113.39
Northeastern Alps6.8164.5192.6261.3381.1454.22120.37
Southwestern Alps18.21010.6137.6165.9187.01630.2779.53
Southeastern Alps17.21016.71012.8129.1145.41918.01079.34
Southern Alps13.3127.1179.2148.91510.81368.74117.92
Switzerland153.0383.8555.1640.1735.27146.13513.41
© WSL, Swiss National Forest Inventory, 11.07.2020 #845411/311742
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