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| protection forest perimeter SilvaProtect | |||||||
|---|---|---|---|---|---|---|---|
| inside perimeter | outside of perimeter | total | |||||
| economic region | time of last treatment (classes of 10 years) | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % |
| Western Jura | n/a | . | . | . | . | . | . |
| less than 10 years ago | 14.6 | 15 | 63.5 | 6 | 78.1 | 5 | |
| 11-20 years ago | 7.8 | 21 | 34.6 | 9 | 42.5 | 8 | |
| 21-30 years ago | 2.1 | 41 | 11.5 | 17 | 13.6 | 16 | |
| 31-40 years ago | 3.2 | 33 | 4.3 | 29 | 7.5 | 21 | |
| 41-50 years ago | 1.4 | 50 | 0.7 | 71 | 2.1 | 41 | |
| over 50 years ago | 2.5 | 38 | 2.5 | 38 | 5.0 | 26 | |
| total | 31.8 | 10 | 117.1 | 3 | 148.9 | 2 | |
| Eastern Jura | n/a | . | . | . | . | . | . |
| less than 10 years ago | 2.0 | 44 | 26.9 | 8 | 28.9 | 8 | |
| 11-20 years ago | 1.6 | 49 | 9.9 | 18 | 11.5 | 16 | |
| 21-30 years ago | 1.6 | 49 | 1.5 | 50 | 3.1 | 35 | |
| 31-40 years ago | 0.4 | 100 | 2.4 | 40 | 2.8 | 37 | |
| 41-50 years ago | . | . | 0.8 | 70 | 0.8 | 70 | |
| over 50 years ago | . | . | . | . | . | . | |
| total | 5.5 | 25 | 41.5 | 4 | 47.0 | 3 | |
| Western Plateau | n/a | . | . | . | . | . | . |
| less than 10 years ago | 3.6 | 33 | 22.5 | 11 | 26.1 | 9 | |
| 11-20 years ago | . | . | 11.1 | 17 | 11.1 | 17 | |
| 21-30 years ago | 0.8 | 70 | 3.3 | 34 | 4.1 | 30 | |
| 31-40 years ago | . | . | 2.5 | 40 | 2.5 | 40 | |
| 41-50 years ago | . | . | 1.6 | 49 | 1.6 | 49 | |
| over 50 years ago | 0.4 | 100 | 1.2 | 57 | 1.6 | 49 | |
| total | 4.9 | 28 | 42.3 | 5 | 47.2 | 4 | |
| Central Plateau | n/a | . | . | . | . | . | . |
| less than 10 years ago | 4.0 | 27 | 44.1 | 5 | 48.1 | 5 | |
| 11-20 years ago | 1.9 | 40 | 14.6 | 13 | 16.5 | 12 | |
| 21-30 years ago | 0.3 | 100 | 1.5 | 44 | 1.9 | 40 | |
| 31-40 years ago | . | . | 0.6 | 71 | 0.6 | 71 | |
| 41-50 years ago | 0.3 | 100 | 0.3 | 100 | 0.6 | 71 | |
| over 50 years ago | 0.3 | 100 | 0.7 | 71 | 1.0 | 58 | |
| total | 6.8 | 20 | 61.9 | 3 | 68.7 | 2 | |
| Eastern Plateau | n/a | . | . | . | . | . | . |
| less than 10 years ago | 4.6 | 27 | 76.5 | 4 | 81.1 | 4 | |
| 11-20 years ago | 0.4 | 100 | 20.4 | 12 | 20.7 | 12 | |
| 21-30 years ago | 0.4 | 100 | 5.7 | 24 | 6.1 | 24 | |
| 31-40 years ago | 0.4 | 100 | 0.7 | 71 | 1.1 | 58 | |
| 41-50 years ago | . | . | . | . | . | . | |
| over 50 years ago | 0.4 | 100 | 0.7 | 71 | 1.1 | 58 | |
| total | 6.1 | 24 | 104.0 | 2 | 110.1 | 2 | |
| Western Pre-Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 7.0 | 22 | 6.3 | 23 | 13.3 | 14 | |
| 11-20 years ago | 6.3 | 23 | 5.2 | 26 | 11.5 | 16 | |
| 21-30 years ago | 6.7 | 22 | 1.1 | 57 | 7.8 | 20 | |
| 31-40 years ago | 1.1 | 57 | 0.7 | 70 | 1.9 | 44 | |
| 41-50 years ago | 1.1 | 57 | 0.7 | 70 | 1.9 | 44 | |
| over 50 years ago | 2.9 | 35 | 1.9 | 44 | 4.8 | 27 | |
| total | 25.2 | 9 | 15.9 | 13 | 41.1 | 4 | |
| Central Pre-Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 25.1 | 11 | 21.2 | 12 | 46.3 | 7 | |
| 11-20 years ago | 10.4 | 18 | 17.6 | 13 | 28.0 | 10 | |
| 21-30 years ago | 4.3 | 28 | 4.7 | 27 | 9.0 | 19 | |
| 31-40 years ago | 2.2 | 40 | 0.7 | 71 | 2.9 | 35 | |
| 41-50 years ago | 1.1 | 58 | 1.1 | 58 | 2.2 | 40 | |
| over 50 years ago | 3.2 | 33 | 3.2 | 33 | 6.5 | 23 | |
| total | 46.3 | 7 | 48.4 | 7 | 94.7 | 2 | |
| Eastern Pre-Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 15.4 | 14 | 15.0 | 14 | 30.4 | 9 | |
| 11-20 years ago | 12.9 | 15 | 7.1 | 21 | 20.0 | 12 | |
| 21-30 years ago | 4.3 | 28 | 2.1 | 40 | 6.4 | 23 | |
| 31-40 years ago | 2.9 | 35 | 1.4 | 50 | 4.3 | 28 | |
| 41-50 years ago | 1.8 | 44 | 2.1 | 40 | 3.9 | 29 | |
| over 50 years ago | 2.1 | 40 | 1.8 | 44 | 3.9 | 29 | |
| total | 39.3 | 7 | 29.6 | 9 | 68.9 | 3 | |
| Northwestern Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 14.3 | 14 | 6.8 | 22 | 21.1 | 11 | |
| 11-20 years ago | 8.9 | 19 | 3.2 | 33 | 12.1 | 16 | |
| 21-30 years ago | 5.0 | 26 | 1.8 | 44 | 6.8 | 22 | |
| 31-40 years ago | 2.5 | 37 | 1.4 | 50 | 3.9 | 29 | |
| 41-50 years ago | 2.1 | 40 | 1.4 | 50 | 3.6 | 31 | |
| over 50 years ago | 3.9 | 30 | 3.2 | 33 | 7.2 | 21 | |
| total | 36.8 | 7 | 17.9 | 13 | 54.7 | 4 | |
| Central Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 5.2 | 24 | 3.8 | 29 | 9.0 | 18 | |
| 11-20 years ago | 2.4 | 37 | 1.0 | 57 | 3.4 | 30 | |
| 21-30 years ago | 1.7 | 44 | 1.1 | 58 | 2.8 | 34 | |
| 31-40 years ago | 1.0 | 57 | 0.3 | 100 | 1.4 | 49 | |
| 41-50 years ago | . | . | 0.3 | 100 | 0.3 | 100 | |
| over 50 years ago | 2.4 | 37 | 2.7 | 34 | 5.2 | 24 | |
| total | 12.7 | 13 | 9.3 | 17 | 22.1 | 8 | |
| Northeastern Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 8.6 | 18 | 2.1 | 40 | 10.7 | 16 | |
| 11-20 years ago | 4.3 | 28 | 2.9 | 34 | 7.2 | 21 | |
| 21-30 years ago | 2.9 | 34 | 0.4 | 100 | 3.2 | 32 | |
| 31-40 years ago | 1.8 | 44 | 0.4 | 100 | 2.1 | 40 | |
| 41-50 years ago | 1.4 | 49 | 0.4 | 100 | 1.8 | 44 | |
| over 50 years ago | 1.8 | 44 | 1.8 | 44 | 3.6 | 30 | |
| total | 20.8 | 10 | 7.9 | 19 | 28.7 | 6 | |
| Southwestern Alps | n/a | 0.3 | 100 | . | . | 0.3 | 100 |
| less than 10 years ago | 14.1 | 15 | 6.5 | 22 | 20.6 | 12 | |
| 11-20 years ago | 9.3 | 19 | 2.1 | 41 | 11.3 | 17 | |
| 21-30 years ago | 9.6 | 18 | 2.8 | 35 | 12.4 | 16 | |
| 31-40 years ago | 12.0 | 16 | 2.1 | 41 | 14.1 | 15 | |
| 41-50 years ago | 9.6 | 18 | 0.7 | 71 | 10.3 | 18 | |
| over 50 years ago | 17.8 | 13 | 6.9 | 22 | 24.7 | 11 | |
| total | 72.7 | 5 | 21.0 | 12 | 93.7 | 3 | |
| Southeastern Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 21.8 | 12 | 16.8 | 14 | 38.6 | 8 | |
| 11-20 years ago | 16.2 | 14 | 11.9 | 17 | 28.1 | 10 | |
| 21-30 years ago | 10.2 | 18 | 4.2 | 28 | 14.4 | 15 | |
| 31-40 years ago | 5.6 | 25 | 3.9 | 30 | 9.5 | 19 | |
| 41-50 years ago | 4.6 | 27 | 1.4 | 50 | 6.0 | 24 | |
| over 50 years ago | 9.9 | 18 | 12.6 | 16 | 22.5 | 12 | |
| total | 68.2 | 5 | 50.9 | 7 | 119.0 | 3 | |
| Southern Alps | n/a | . | . | . | . | . | . |
| less than 10 years ago | 10.3 | 18 | 2.5 | 38 | 12.8 | 16 | |
| 11-20 years ago | 11.4 | 17 | 1.1 | 58 | 12.4 | 16 | |
| 21-30 years ago | 8.5 | 20 | 2.1 | 41 | 10.6 | 18 | |
| 31-40 years ago | 10.3 | 18 | 2.1 | 41 | 12.4 | 16 | |
| 41-50 years ago | 14.5 | 15 | 2.8 | 35 | 17.4 | 14 | |
| over 50 years ago | 46.3 | 8 | 7.4 | 21 | 53.7 | 7 | |
| total | 101.3 | 4 | 18.0 | 13 | 119.3 | 3 | |
| Switzerland | n/a | 0.3 | 100 | . | . | 0.3 | 100 |
| less than 10 years ago | 150.6 | 5 | 314.5 | 3 | 465.1 | 2 | |
| 11-20 years ago | 93.6 | 6 | 142.7 | 5 | 236.3 | 3 | |
| 21-30 years ago | 58.4 | 8 | 43.8 | 9 | 102.1 | 6 | |
| 31-40 years ago | 43.3 | 9 | 23.6 | 12 | 66.9 | 7 | |
| 41-50 years ago | 38.0 | 9 | 14.5 | 16 | 52.5 | 8 | |
| over 50 years ago | 94.1 | 6 | 46.6 | 9 | 140.7 | 5 | |
| total | 478.2 | 2 | 585.7 | 2 | 1063.9 | 1 | |
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