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NFI2

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 1993/95
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 perimetern/a......0.3100....0.3100
less than 10 years ago29.01146.5828.31014.11521.81210.318149.95
11-20 years ago11.81725.61119.2139.31916.21411.41793.36
21-30 years ago5.02715.9158.6199.61810.2188.52057.88
31-40 years ago3.9305.8255.52512.0165.62510.31843.19
41-50 years ago1.8454.3293.1339.6184.62714.51537.99
over 50 years ago3.63210.1196.22317.8139.91846.3893.96
total55.18108.2470.9572.7568.25101.34476.32
outside of perimetern/a..............
less than 10 years ago235.0334.31020.4126.52216.8142.538315.53
11-20 years ago90.5626.01110.8172.14111.9171.158142.45
21-30 years ago23.3127.6213.5312.8354.2282.14143.49
31-40 years ago10.0192.9352.1412.1413.9302.14123.112
41-50 years ago3.2333.2332.8350.7711.4502.83514.116
over 50 years ago5.0278.3206.2236.92212.6167.42146.49
total367.0182.2545.7721.01250.9718.013584.82
totaln/a......0.3100....0.3100
less than 10 years ago264.0280.8548.7720.61238.6812.816465.42
11-20 years ago102.3551.6730.01011.31728.11012.416235.73
21-30 years ago28.31123.41212.11612.41614.41510.618101.26
31-40 years ago14.0168.7207.62114.1159.51912.41666.27
41-50 years ago5.0277.6225.92410.3186.02417.41452.18
over 50 years ago8.62018.41312.41624.71122.51253.77140.35
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 04.11.2014 #156939/143318
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