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NFI3

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 NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2004/06
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 ago26.81150.5832.1917.81318.31311.417156.94
11-20 years ago11.11820.61314.5158.61917.6137.12279.46
21-30 years ago8.2219.7198.1204.5276.3237.42144.39
31-40 years ago2.5388.7205.5255.5257.4215.32534.810
41-50 years ago3.2336.5233.4319.3193.5319.21935.110
over 50 years ago3.23312.3177.22127.11015.11560.96125.95
total55.18108.2470.9572.7568.25101.34476.32
outside of perimeterless than 10 years ago257.2239.7920.2126.22317.6133.233344.02
11-20 years ago55.8814.4157.9203.1337.7211.45090.46
21-30 years ago33.31010.5184.5271.7447.0220.77157.68
31-40 years ago10.0197.6212.8350.31003.2331.84525.612
41-50 years ago5.0271.8452.4381.4502.5381.15814.116
over 50 years ago5.7258.3217.9208.22013.0169.91853.08
total367.0182.2545.7721.01250.9718.013584.82
totalless than 10 years ago284.0290.2552.3724.01135.9914.515500.92
11-20 years ago66.9735.0922.51111.71625.3118.520169.84
21-30 years ago41.5920.21312.6166.22313.3168.120101.96
31-40 years ago12.51716.2148.3205.82410.5187.02260.57
41-50 years ago8.2218.3205.92410.6176.02410.31849.38
over 50 years ago8.92020.61315.21435.3828.11070.86178.94
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #159586/145965
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