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protection forest region | |||||||||||||||
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Jura + Plateau | Northwestern Alps | Northeastern Alps | Southwestern Alps | Southeastern Alps | Southern Alps | Switzerland | |||||||||
silvicultural treatment between NFI3 and NFI4 | harvesting systems | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % | 1000 ha | ± % |
silvicultural treatment | axe | . | . | . | . | . | . | . | . | . | . | . | . | . | . |
chain saw | 150.6 | 4 | 35.3 | 9 | 22.8 | 11 | 8.2 | 20 | 13.1 | 16 | 6.7 | 22 | 236.8 | 3 | |
chainsaw, then processor | 16.1 | 15 | 6.5 | 23 | 1.8 | 45 | 0.3 | 100 | 5.6 | 25 | 0.7 | 71 | 31.0 | 11 | |
wheeled harvester | 42.6 | 9 | 1.4 | 50 | 0.3 | 100 | . | . | 1.4 | 50 | . | . | 45.8 | 8 | |
tracked harvester | 2.9 | 35 | 0.4 | 100 | . | . | . | . | . | . | . | . | 3.2 | 33 | |
walking harvester | . | . | 0.4 | 100 | . | . | . | . | 0.4 | 100 | . | . | 0.7 | 71 | |
chainsaw, then chipper | 1.1 | 58 | . | . | . | . | . | . | . | . | . | . | 1.1 | 58 | |
feller buncher, then chipper | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
chainsaw, then yarder | 0.4 | 100 | 5.4 | 26 | 3.4 | 31 | 4.2 | 29 | . | . | 0.4 | 100 | 13.7 | 16 | |
chainsaw, then helicopter | 0.7 | 71 | 1.1 | 58 | 3.9 | 30 | 3.8 | 30 | 1.8 | 45 | 5.3 | 25 | 16.6 | 14 | |
others | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
total | 214.3 | 3 | 50.5 | 8 | 32.3 | 9 | 16.5 | 14 | 22.2 | 12 | 13.1 | 16 | 348.9 | 3 | |
no silvicultural treatment | axe | . | . | . | . | . | . | . | . | . | . | . | . | . | . |
chain saw | 153.8 | 4 | 85.5 | 5 | 59.4 | 6 | 32.0 | 9 | 62.2 | 6 | 35.3 | 9 | 428.2 | 2 | |
chainsaw, then processor | 19.3 | 13 | 27.0 | 11 | 9.7 | 18 | 1.0 | 58 | 24.2 | 11 | 12.0 | 17 | 93.3 | 6 | |
wheeled harvester | 29.7 | 11 | 2.5 | 38 | 1.4 | 50 | 1.0 | 58 | 3.2 | 33 | . | . | 37.8 | 9 | |
tracked harvester | 4.7 | 28 | . | . | 0.3 | 100 | 0.3 | 100 | . | . | . | . | 5.3 | 26 | |
walking harvester | 0.4 | 100 | . | . | 0.3 | 100 | . | . | 1.8 | 45 | . | . | 2.5 | 38 | |
chainsaw, then chipper | 1.4 | 50 | . | . | . | . | . | . | . | . | 1.4 | 50 | 2.9 | 35 | |
feller buncher, then chipper | . | . | . | . | 0.3 | 100 | . | . | . | . | . | . | 0.3 | 100 | |
chainsaw, then yarder | 8.9 | 20 | 27.0 | 11 | 10.3 | 18 | 20.2 | 12 | . | . | 3.6 | 31 | 70.1 | 7 | |
chainsaw, then helicopter | 0.7 | 71 | 16.6 | 14 | 22.3 | 12 | 43.3 | 8 | 35.3 | 9 | 88.4 | 5 | 206.6 | 3 | |
others | 0.7 | 71 | . | . | . | . | . | . | . | . | . | . | 0.7 | 71 | |
total | 219.7 | 3 | 158.7 | 3 | 104.1 | 4 | 97.9 | 3 | 126.7 | 3 | 140.7 | 3 | 847.8 | 1 | |
total | axe | . | . | . | . | . | . | . | . | . | . | . | . | . | . |
chain saw | 304.4 | 2 | 120.8 | 4 | 82.3 | 5 | 40.2 | 8 | 75.3 | 5 | 42.0 | 8 | 665.0 | 2 | |
chainsaw, then processor | 35.4 | 10 | 33.5 | 10 | 11.4 | 17 | 1.4 | 50 | 29.8 | 10 | 12.8 | 16 | 124.3 | 5 | |
wheeled harvester | 72.3 | 6 | 4.0 | 30 | 1.7 | 44 | 1.0 | 58 | 4.6 | 27 | . | . | 83.6 | 6 | |
tracked harvester | 7.5 | 22 | 0.4 | 100 | 0.3 | 100 | 0.3 | 100 | . | . | . | . | 8.6 | 20 | |
walking harvester | 0.4 | 100 | 0.4 | 100 | 0.3 | 100 | . | . | 2.1 | 41 | . | . | 3.2 | 33 | |
chainsaw, then chipper | 2.5 | 38 | . | . | . | . | . | . | . | . | 1.4 | 50 | 3.9 | 30 | |
feller buncher, then chipper | . | . | . | . | 0.3 | 100 | . | . | . | . | . | . | 0.3 | 100 | |
chainsaw, then yarder | 9.3 | 19 | 32.5 | 10 | 13.8 | 15 | 24.4 | 11 | . | . | 3.9 | 30 | 83.9 | 6 | |
chainsaw, then helicopter | 1.4 | 50 | 17.7 | 14 | 26.2 | 11 | 47.1 | 7 | 37.1 | 9 | 93.7 | 4 | 223.1 | 3 | |
others | 0.7 | 71 | . | . | . | . | . | . | . | . | . | . | 0.7 | 71 | |
total | 434.0 | 1 | 209.2 | 2 | 136.5 | 2 | 114.4 | 3 | 148.9 | 2 | 153.8 | 2 | 1196.7 | 1 |
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