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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
rockfall 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 | 33.9 | 7 | 32.9 | 7 | 23.8 | 9 | 30.8 | 7 | 47.7 | 6 | 29.3 | 8 | 198.3 | 3 |
tending | 49.5 | 5 | 10.7 | 13 | 3.6 | 23 | 2.1 | 31 | 3.2 | 25 | 0.4 | 71 | 69.5 | 5 | |
thinning | 117.1 | 3 | 14.8 | 11 | 9.0 | 14 | 1.2 | 41 | 1.7 | 33 | 1.4 | 38 | 145.2 | 3 | |
establishment cut | 44.6 | 6 | 9.7 | 14 | 6.6 | 16 | 0.9 | 45 | 6.9 | 17 | 0.8 | 50 | 69.6 | 5 | |
removal cut | 19.4 | 10 | 2.9 | 27 | 0.8 | 50 | 0.4 | 71 | 0.8 | 50 | 0.6 | 58 | 24.9 | 9 | |
plentering | 26.0 | 8 | 7.7 | 16 | 1.0 | 45 | 0.0 | . | 1.8 | 33 | 0.0 | . | 36.6 | 7 | |
thinning of mountain forest | 0.4 | 71 | 14.1 | 12 | 8.4 | 15 | 2.8 | 27 | 5.3 | 19 | 1.7 | 33 | 32.8 | 8 | |
coppice cut | 1.6 | 35 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.8 | 50 | 2.3 | 29 | |
conversion | 3.2 | 25 | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 3.8 | 23 | |
transformation | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.6 | 58 | |
sanitary felling | 7.7 | 16 | 1.8 | 33 | 0.4 | 71 | 0.6 | 58 | 0.0 | . | 0.4 | 71 | 10.9 | 13 | |
plentering in broadleaf forest | 44.0 | 6 | 0.8 | 50 | 5.6 | 19 | 0.0 | . | 0.0 | . | 0.0 | . | 50.5 | 6 | |
tending of forest edge | 7.7 | 16 | 0.6 | 58 | 1.6 | 35 | 0.2 | 100 | 0.4 | 71 | 0.8 | 50 | 11.3 | 13 | |
planting | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | |
agrosilvicultural treatments | 13.2 | 12 | 2.0 | 32 | 1.4 | 38 | 1.2 | 41 | 1.7 | 35 | 1.4 | 38 | 20.9 | 10 | |
total | 369.3 | 1 | 98.8 | 4 | 62.2 | 5 | 40.2 | 6 | 69.5 | 4 | 37.5 | 7 | 677.5 | 1 | |
inside perimeter | no treatment | 0.8 | 50 | 1.2 | 41 | 1.8 | 33 | 4.1 | 22 | 2.5 | 28 | 7.7 | 16 | 18.1 | 10 |
tending | 0.2 | 100 | 1.1 | 45 | 0.8 | 50 | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 2.5 | 29 | |
thinning | 0.8 | 50 | 1.0 | 45 | 0.0 | . | 0.4 | 71 | 0.0 | . | 0.2 | 100 | 2.4 | 29 | |
establishment cut | 1.4 | 38 | 0.0 | . | 0.8 | 50 | 0.2 | 100 | 1.2 | 41 | 0.0 | . | 3.6 | 24 | |
removal cut | 0.2 | 100 | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | |
plentering | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.2 | 100 | |
thinning of mountain forest | 0.4 | 71 | 1.2 | 41 | 3.1 | 25 | 2.4 | 29 | 0.2 | 100 | 2.5 | 29 | 9.8 | 14 | |
coppice cut | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | 0.4 | 71 | |
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 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
plentering in broadleaf forest | 0.2 | 100 | 0.0 | . | 1.2 | 41 | 0.0 | . | 0.0 | . | 0.0 | . | 1.4 | 38 | |
tending of forest edge | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
planting | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
agrosilvicultural treatments | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.2 | 100 | |
total | 3.9 | 22 | 4.5 | 21 | 7.9 | 15 | 7.2 | 16 | 4.4 | 21 | 11.0 | 13 | 38.9 | 7 | |
outside perimeter | no treatment | 8.4 | 15 | 24.8 | 9 | 16.5 | 10 | 38.5 | 6 | 47.8 | 5 | 76.3 | 4 | 212.4 | 3 |
tending | 4.4 | 21 | 10.9 | 13 | 6.0 | 18 | 2.0 | 32 | 4.2 | 22 | 1.3 | 38 | 28.8 | 8 | |
thinning | 14.6 | 11 | 10.0 | 14 | 10.9 | 13 | 3.3 | 24 | 3.5 | 23 | 6.0 | 18 | 48.3 | 6 | |
establishment cut | 10.3 | 14 | 11.1 | 13 | 6.6 | 16 | 7.5 | 15 | 10.8 | 13 | 3.7 | 23 | 50.0 | 6 | |
removal cut | 2.8 | 27 | 2.9 | 27 | 1.8 | 33 | 0.4 | 71 | 1.2 | 41 | 2.5 | 28 | 11.6 | 13 | |
plentering | 3.4 | 24 | 11.7 | 13 | 1.8 | 33 | 0.2 | 100 | 0.8 | 50 | 0.2 | 100 | 18.1 | 10 | |
thinning of mountain forest | 2.8 | 27 | 28.1 | 8 | 10.6 | 13 | 18.9 | 9 | 7.8 | 16 | 13.7 | 11 | 81.9 | 5 | |
coppice cut | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 3.1 | 25 | 3.6 | 23 | |
conversion | 0.0 | . | 1.1 | 45 | 0.8 | 50 | 0.0 | . | 0.0 | . | 0.6 | 58 | 2.5 | 29 | |
transformation | 0.0 | . | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.6 | 58 | |
sanitary felling | 1.0 | 45 | 1.9 | 33 | 0.6 | 58 | 0.8 | 50 | 0.0 | . | 0.8 | 50 | 5.0 | 20 | |
plentering in broadleaf forest | 4.4 | 21 | 1.1 | 45 | 7.1 | 16 | 0.0 | . | 0.2 | 100 | 0.0 | . | 12.7 | 12 | |
tending of forest edge | 1.0 | 45 | 0.6 | 58 | 0.8 | 50 | 0.2 | 100 | 0.6 | 58 | 0.2 | 100 | 3.4 | 24 | |
planting | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
agrosilvicultural treatments | 1.2 | 41 | 1.2 | 41 | 0.6 | 58 | 1.8 | 33 | 0.8 | 50 | 1.0 | 45 | 6.5 | 17 | |
total | 54.7 | 6 | 105.4 | 3 | 64.2 | 4 | 73.7 | 3 | 77.8 | 4 | 109.7 | 3 | 485.5 | 1 | |
total | no treatment | 43.0 | 6 | 58.9 | 5 | 42.2 | 6 | 73.4 | 4 | 98.0 | 3 | 113.3 | 3 | 428.9 | 2 |
tending | 54.1 | 5 | 22.6 | 9 | 10.4 | 13 | 4.3 | 22 | 7.6 | 16 | 1.7 | 33 | 100.8 | 4 | |
thinning | 132.5 | 3 | 25.8 | 8 | 19.9 | 9 | 4.8 | 19 | 5.3 | 19 | 7.6 | 16 | 195.9 | 3 | |
establishment cut | 56.3 | 5 | 20.8 | 9 | 14.0 | 11 | 8.6 | 14 | 18.9 | 9 | 4.5 | 21 | 123.1 | 4 | |
removal cut | 22.4 | 9 | 5.7 | 19 | 2.8 | 27 | 0.8 | 50 | 2.1 | 31 | 3.1 | 26 | 36.8 | 7 | |
plentering | 29.4 | 8 | 19.4 | 10 | 2.8 | 27 | 0.2 | 100 | 2.8 | 27 | 0.2 | 100 | 54.8 | 6 | |
thinning of mountain forest | 3.6 | 23 | 43.4 | 6 | 22.1 | 9 | 24.1 | 8 | 13.3 | 12 | 17.9 | 10 | 124.4 | 4 | |
coppice cut | 1.9 | 32 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 4.3 | 21 | 6.4 | 17 | |
conversion | 3.2 | 25 | 1.7 | 35 | 0.8 | 50 | 0.0 | . | 0.0 | . | 0.6 | 58 | 6.2 | 18 | |
transformation | 0.6 | 58 | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | 1.2 | 41 | |
sanitary felling | 8.7 | 15 | 3.7 | 23 | 1.0 | 45 | 1.4 | 38 | 0.0 | . | 1.2 | 41 | 15.9 | 11 | |
plentering in broadleaf forest | 48.6 | 6 | 1.9 | 33 | 13.9 | 11 | 0.0 | . | 0.2 | 100 | 0.0 | . | 64.6 | 5 | |
tending of forest edge | 8.7 | 15 | 1.2 | 41 | 2.3 | 29 | 0.4 | 71 | 1.0 | 45 | 1.0 | 45 | 14.7 | 12 | |
planting | 0.4 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 71 | |
agrosilvicultural treatments | 14.4 | 12 | 3.2 | 25 | 2.0 | 32 | 3.0 | 26 | 2.5 | 29 | 2.6 | 28 | 27.7 | 8 | |
total | 427.9 | 1 | 208.7 | 1 | 134.3 | 2 | 121.1 | 2 | 151.6 | 2 | 158.3 | 2 | 1201.9 | 1 |
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