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NFI4b

forest area: rockfall SilvaProtect, modelled and assigned · time of last treatment (classes of 10 years) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI3/NFI4 combined
grid:
state 2009/13
rockfall SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiontime of last treatment (classes of 10 years) %± %± %±
Western Juraless than 10 years ago37.317.154.02.453.72.4
11-20 years ago25.415.522.62.022.72.0
21-30 years ago..9.11.48.91.4
31-40 years ago..6.01.25.81.1
41-50 years ago..4.31.04.21.0
over 50 years ago37.317.14.01.04.71.0
total100.0.100.0.100.0.
Eastern Juraless than 10 years ago100.0.54.64.555.04.5
11-20 years ago..30.64.230.44.2
21-30 years ago..5.02.04.92.0
31-40 years ago..3.31.63.31.6
41-50 years ago..2.41.42.31.3
over 50 years ago..4.11.84.11.8
total100.0.100.0.100.0.
Western Plateauless than 10 years ago..64.54.464.54.4
11-20 years ago..15.23.315.23.3
21-30 years ago..8.42.68.42.6
31-40 years ago..3.41.73.41.7
41-50 years ago..4.31.94.31.9
over 50 years ago..4.31.94.31.9
total..100.0.100.0.
Central Plateauless than 10 years ago100.0.77.62.877.72.8
11-20 years ago..15.12.415.12.4
21-30 years ago..3.21.23.21.2
31-40 years ago..2.31.02.31.0
41-50 years ago......
over 50 years ago..1.80.91.80.9
total100.0.100.0.100.0.
Eastern Plateauless than 10 years ago..77.62.477.62.4
11-20 years ago..12.81.912.81.9
21-30 years ago..6.41.46.41.4
31-40 years ago..1.90.81.90.8
41-50 years ago..0.30.30.30.3
over 50 years ago..1.00.61.00.6
total..100.0.100.0.
Western Pre-Alpsless than 10 years ago100.0.38.44.538.94.4
11-20 years ago..21.63.821.53.7
21-30 years ago..11.62.911.52.9
31-40 years ago..10.92.910.82.8
41-50 years ago..7.52.47.52.4
over 50 years ago..10.02.89.92.7
total100.0.100.0.100.0.
Central Pre-Alpsless than 10 years ago25.021.747.03.046.73.0
11-20 years ago..26.12.725.72.7
21-30 years ago25.021.77.81.68.11.7
31-40 years ago..6.01.45.91.4
41-50 years ago..4.91.34.81.3
over 50 years ago50.025.08.21.78.81.7
total100.0.100.0.100.0.
Eastern Pre-Alpsless than 10 years ago66.727.342.93.543.23.5
11-20 years ago33.327.325.13.125.23.0
21-30 years ago..8.41.98.31.9
31-40 years ago..8.41.98.31.9
41-50 years ago..4.91.54.91.5
over 50 years ago..10.32.110.22.1
total100.0.100.0.100.0.
Northwestern Alpsless than 10 years ago23.111.732.73.732.03.6
11-20 years ago7.77.417.03.016.32.8
21-30 years ago30.812.817.03.018.02.9
31-40 years ago7.77.45.71.85.81.8
41-50 years ago..8.22.27.52.0
over 50 years ago30.812.819.53.220.43.1
total100.0.100.0.100.0.
Central Alpsless than 10 years ago45.515.129.85.632.05.3
11-20 years ago9.18.713.34.212.73.8
21-30 years ago9.18.713.64.213.03.8
31-40 years ago18.211.78.93.510.23.4
41-50 years ago9.18.76.02.96.52.8
over 50 years ago9.18.728.45.525.75.0
total100.0.100.0.100.0.
Northeastern Alpsless than 10 years ago11.110.531.35.229.24.8
11-20 years ago33.315.822.54.723.64.5
21-30 years ago22.213.916.34.116.94.0
31-40 years ago11.110.55.02.45.62.4
41-50 years ago..5.02.44.52.2
over 50 years ago22.213.920.04.520.24.3
total100.0.100.0.100.0.
Southwestern Alpsless than 10 years ago24.98.822.12.422.32.3
11-20 years ago12.56.714.62.114.52.0
21-30 years ago..9.51.78.81.6
31-40 years ago4.24.16.81.56.61.4
41-50 years ago12.76.99.21.79.51.6
over 50 years ago45.710.237.72.838.32.7
total100.0.100.0.100.0.
Southeastern Alpsless than 10 years ago22.213.922.82.122.82.1
11-20 years ago11.110.520.22.020.02.0
21-30 years ago11.110.516.01.915.91.8
31-40 years ago11.110.511.71.611.71.6
41-50 years ago11.110.56.31.26.41.2
over 50 years ago33.315.722.92.123.22.1
total100.0.100.0.100.0.
Southern Alpsless than 10 years ago12.65.99.81.510.01.5
11-20 years ago9.45.27.11.37.31.3
21-30 years ago3.13.19.71.59.21.4
31-40 years ago6.24.38.11.48.01.3
41-50 years ago6.24.36.51.36.51.2
over 50 years ago62.48.658.72.559.02.4
total100.0.100.0.100.0.
Switzerlandless than 10 years ago25.84.142.20.841.60.8
11-20 years ago13.03.118.30.718.10.7
21-30 years ago8.72.69.80.59.80.5
31-40 years ago6.92.36.50.46.50.4
41-50 years ago6.02.25.00.45.00.4
over 50 years ago39.64.518.20.619.00.6
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #164909/151291
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