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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
avalanches SilvaProtect | type of next treatment (interview survey) | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % |
n/a | no treatment | 32.8 | 8 | 22.0 | 9 | 15.0 | 11 | 18.1 | 10 | 31.5 | 7 | 13.8 | 12 | 133.2 | 4 |
tending | 48.7 | 5 | 9.0 | 15 | 3.4 | 24 | 1.3 | 40 | 2.2 | 30 | 0.4 | 71 | 65.0 | 5 | |
thinning | 114.5 | 3 | 14.4 | 12 | 8.4 | 15 | 0.4 | 71 | 1.6 | 35 | 0.8 | 50 | 140.0 | 3 | |
establishment cut | 43.6 | 6 | 9.3 | 15 | 6.6 | 16 | 0.7 | 50 | 6.7 | 17 | 0.8 | 50 | 67.8 | 5 | |
removal cut | 18.6 | 10 | 2.7 | 28 | 0.6 | 58 | 0.4 | 71 | 0.8 | 50 | 0.4 | 71 | 23.5 | 9 | |
plentering | 25.2 | 8 | 7.3 | 17 | 0.8 | 50 | 0.0 | . | 1.6 | 35 | 0.0 | . | 34.9 | 7 | |
thinning of mountain forest | 0.4 | 71 | 12.8 | 12 | 7.4 | 16 | 2.6 | 28 | 5.3 | 19 | 1.7 | 33 | 30.2 | 8 | |
coppice cut | 1.4 | 38 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.6 | 58 | 2.0 | 32 | |
conversion | 3.2 | 25 | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 3.6 | 23 | |
transformation | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.6 | 58 | |
sanitary felling | 7.1 | 17 | 1.2 | 41 | 0.4 | 71 | 0.2 | 100 | 0.0 | . | 0.4 | 71 | 9.3 | 15 | |
plentering in broadleaf forest | 43.8 | 6 | 0.8 | 50 | 5.0 | 20 | 0.0 | . | 0.0 | . | 0.0 | . | 49.7 | 6 | |
tending of forest edge | 6.1 | 18 | 0.4 | 71 | 1.2 | 41 | 0.2 | 100 | 0.2 | 100 | 0.4 | 71 | 8.5 | 15 | |
planting | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | |
agrosilvicultural treatments | 9.5 | 14 | 1.0 | 45 | 1.0 | 45 | 0.6 | 58 | 0.8 | 50 | 0.8 | 50 | 13.8 | 12 | |
total | 356.0 | 1 | 81.4 | 4 | 49.7 | 5 | 24.5 | 8 | 50.6 | 5 | 20.1 | 9 | 582.4 | 1 | |
inside perimeter | no treatment | 1.4 | 38 | 3.8 | 23 | 2.6 | 27 | 10.4 | 13 | 9.8 | 14 | 6.4 | 17 | 34.3 | 7 |
tending | 0.0 | . | 2.7 | 28 | 1.2 | 41 | 0.6 | 58 | 0.8 | 50 | 0.0 | . | 5.2 | 20 | |
thinning | 0.4 | 71 | 2.0 | 31 | 1.0 | 45 | 1.0 | 45 | 0.8 | 50 | 0.2 | 100 | 5.4 | 19 | |
establishment cut | 1.2 | 41 | 2.0 | 31 | 0.9 | 45 | 2.5 | 27 | 2.8 | 26 | 0.2 | 100 | 9.7 | 14 | |
removal cut | 0.2 | 100 | 0.4 | 71 | 0.6 | 58 | 0.2 | 100 | 0.2 | 100 | 0.2 | 100 | 1.8 | 33 | |
plentering | 0.6 | 58 | 0.2 | 100 | 0.4 | 71 | 0.0 | . | 0.2 | 100 | 0.0 | . | 1.4 | 38 | |
thinning of mountain forest | 0.8 | 50 | 8.3 | 15 | 5.5 | 19 | 7.9 | 15 | 2.2 | 30 | 4.3 | 21 | 29.0 | 8 | |
coppice cut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
conversion | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
transformation | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
sanitary felling | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | 0.6 | 58 | |
plentering in broadleaf forest | 0.0 | . | 0.0 | . | 1.8 | 33 | 0.0 | . | 0.0 | . | 0.0 | . | 1.8 | 33 | |
tending of forest edge | 0.0 | . | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | |
planting | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
agrosilvicultural treatments | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.2 | 100 | 0.2 | 100 | 0.2 | 100 | 0.8 | 50 | |
total | 4.7 | 20 | 19.8 | 10 | 14.0 | 11 | 22.9 | 8 | 17.0 | 10 | 11.9 | 12 | 90.2 | 4 | |
outside perimeter | no treatment | 7.0 | 17 | 20.2 | 10 | 12.6 | 12 | 26.5 | 8 | 32.7 | 7 | 61.5 | 5 | 160.5 | 3 |
tending | 4.4 | 21 | 8.8 | 15 | 4.6 | 20 | 1.4 | 38 | 2.4 | 29 | 1.2 | 41 | 22.8 | 9 | |
thinning | 13.6 | 12 | 8.8 | 15 | 8.9 | 14 | 2.5 | 27 | 2.6 | 28 | 5.9 | 18 | 42.2 | 7 | |
establishment cut | 10.5 | 13 | 8.6 | 15 | 6.1 | 17 | 5.0 | 19 | 8.4 | 15 | 3.5 | 24 | 42.1 | 7 | |
removal cut | 2.8 | 27 | 2.3 | 30 | 1.4 | 38 | 0.2 | 100 | 0.8 | 50 | 2.3 | 30 | 9.7 | 14 | |
plentering | 2.8 | 27 | 10.9 | 13 | 1.3 | 38 | 0.2 | 100 | 0.8 | 50 | 0.2 | 100 | 16.3 | 11 | |
thinning of mountain forest | 2.4 | 29 | 20.2 | 9 | 7.6 | 16 | 13.2 | 11 | 5.2 | 19 | 11.3 | 13 | 59.9 | 5 | |
coppice cut | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 2.9 | 26 | 3.4 | 24 | |
conversion | 0.0 | . | 1.1 | 45 | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.6 | 58 | 2.3 | 30 | |
transformation | 0.0 | . | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.6 | 58 | |
sanitary felling | 1.0 | 45 | 1.5 | 38 | 0.6 | 58 | 0.8 | 50 | 0.0 | . | 0.4 | 71 | 4.2 | 22 | |
plentering in broadleaf forest | 4.4 | 21 | 1.1 | 45 | 6.5 | 17 | 0.0 | . | 0.2 | 100 | 0.0 | . | 12.1 | 12 | |
tending of forest edge | 1.0 | 45 | 0.6 | 58 | 0.8 | 50 | 0.0 | . | 0.4 | 71 | 0.2 | 100 | 3.0 | 26 | |
planting | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
agrosilvicultural treatments | 1.2 | 41 | 1.0 | 45 | 0.4 | 71 | 1.6 | 35 | 0.2 | 100 | 1.0 | 45 | 5.4 | 19 | |
total | 51.4 | 6 | 85.3 | 4 | 51.5 | 5 | 51.6 | 5 | 53.7 | 5 | 91.1 | 3 | 384.6 | 2 | |
total | no treatment | 41.2 | 7 | 45.9 | 6 | 30.2 | 7 | 55.1 | 5 | 74.0 | 4 | 81.7 | 4 | 328.1 | 2 |
tending | 53.1 | 5 | 20.5 | 9 | 9.2 | 14 | 3.3 | 25 | 5.4 | 19 | 1.5 | 35 | 93.1 | 4 | |
thinning | 128.6 | 3 | 25.2 | 8 | 18.3 | 10 | 3.8 | 22 | 4.9 | 20 | 6.9 | 17 | 187.6 | 3 | |
establishment cut | 55.3 | 5 | 20.0 | 10 | 13.6 | 11 | 8.2 | 15 | 17.9 | 10 | 4.5 | 21 | 119.5 | 4 | |
removal cut | 21.6 | 9 | 5.3 | 19 | 2.6 | 28 | 0.8 | 50 | 1.8 | 33 | 2.9 | 26 | 35.0 | 7 | |
plentering | 28.6 | 8 | 18.5 | 10 | 2.6 | 28 | 0.2 | 100 | 2.5 | 28 | 0.2 | 100 | 52.6 | 6 | |
thinning of mountain forest | 3.6 | 23 | 41.3 | 6 | 20.5 | 9 | 23.7 | 8 | 12.7 | 12 | 17.3 | 10 | 119.0 | 4 | |
coppice cut | 1.7 | 33 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 3.5 | 24 | 5.4 | 19 | |
conversion | 3.2 | 25 | 1.5 | 38 | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.6 | 58 | 5.9 | 19 | |
transformation | 0.6 | 58 | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | 1.2 | 41 | |
sanitary felling | 8.1 | 15 | 2.9 | 27 | 1.0 | 45 | 1.0 | 45 | 0.0 | . | 1.2 | 41 | 14.1 | 12 | |
plentering in broadleaf forest | 48.2 | 6 | 1.9 | 33 | 13.2 | 11 | 0.0 | . | 0.2 | 100 | 0.0 | . | 63.5 | 5 | |
tending of forest edge | 7.1 | 17 | 1.0 | 45 | 2.0 | 32 | 0.4 | 71 | 0.6 | 58 | 0.6 | 58 | 11.7 | 13 | |
planting | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | |
agrosilvicultural treatments | 10.7 | 13 | 2.2 | 30 | 1.4 | 38 | 2.4 | 29 | 1.2 | 41 | 2.0 | 31 | 20.0 | 10 | |
total | 412.1 | 1 | 186.4 | 1 | 115.2 | 2 | 99.0 | 2 | 121.3 | 2 | 123.1 | 2 | 1057.1 | 1 |
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