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NFI4b

forest area: protection forest perimeter SilvaProtect · time of last treatment (classes of 10 years) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
protection forest perimeter SilvaProtecttime of last treatment (classes of 10 years)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterless than 10 years ago27.51145.8829.71016.81316.21411.717147.75
11-20 years ago12.51723.11217.31312.01616.5148.12089.56
21-30 years ago5.02715.9158.1217.52112.3169.61958.48
31-40 years ago3.2336.9236.7234.5278.4207.12236.810
41-50 years ago1.8455.8253.8307.9204.9267.72131.910
over 50 years ago5.72515.1159.31929.8917.61370.95148.54
total55.88112.5474.9578.5475.95115.13512.82
outside of perimeterless than 10 years ago254.3336.8918.7137.62115.8142.835336.02
11-20 years ago68.0721.61211.6173.83011.6172.538119.05
21-30 years ago24.0128.3216.7232.14110.1183.93055.08
31-40 years ago12.5177.2223.8302.7358.0204.62738.89
41-50 years ago7.9216.9232.8352.4384.1291.84525.912
over 50 years ago7.52210.51811.21712.01615.01515.11571.37
total374.2191.2554.8730.6964.7630.610646.12
totalless than 10 years ago281.8282.6548.4724.41132.0914.515483.72
11-20 years ago80.5644.7828.81015.81428.11010.618208.64
21-30 years ago29.01124.21214.8159.61822.41213.416113.45
31-40 years ago15.71514.11610.5187.22116.51411.61775.67
41-50 years ago9.71912.6166.62210.3189.1199.51957.88
over 50 years ago13.21625.61120.61241.8832.6986.05219.83
total430.01203.82129.72109.13140.62145.721158.91

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164276/150657
search result: 1 entry on 1 page

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