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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 | main tree species | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % | m²/ha | ± % |
n/a | spruce | -2.0 | 23 | -0.5 | 208 | 2.7 | 60 | -0.7 | 213 | 3.4 | 29 | 2.0 | 38 | -0.8 | 46 |
fir | 0.8 | 28 | 0.5 | 130 | 1.0 | 37 | 0.2 | 59 | 0.1 | 89 | 0.6 | 69 | 0.7 | 25 | |
pine | -0.5 | 21 | 0.1 | 104 | 0.1 | 76 | -0.2 | 286 | -0.3 | 138 | 0.1 | 99 | -0.3 | 25 | |
larch | -0.0 | 1828 | 0.1 | 61 | 0.0 | 479 | 2.5 | 43 | 0.6 | 75 | 2.3 | 28 | 0.2 | 29 | |
stone pine | . | . | . | . | . | . | 0.5 | 111 | 0.3 | 122 | 0.1 | 99 | 0.0 | 82 | |
other conifers | 0.2 | 33 | 0.0 | 77 | 0.0 | 100 | 0.0 | 101 | 0.1 | 47 | . | . | 0.1 | 29 | |
beech | 0.6 | 35 | 0.6 | 78 | 1.9 | 22 | -0.3 | 100 | -0.2 | 219 | 0.7 | 55 | 0.6 | 26 | |
maple | 0.4 | 16 | 0.8 | 26 | 0.6 | 33 | 0.1 | 97 | 0.1 | 49 | 0.0 | 310 | 0.4 | 13 | |
ash | 0.6 | 20 | 0.4 | 39 | 0.9 | 33 | 0.9 | 89 | 0.0 | 160 | 0.2 | 52 | 0.5 | 16 | |
oak | 0.1 | 137 | 0.1 | 50 | 0.1 | 70 | 0.4 | 48 | 0.1 | 100 | 0.1 | 127 | 0.1 | 71 | |
chestnut | 0.0 | 80 | 0.0 | 100 | . | . | . | . | . | . | -0.3 | 283 | -0.0 | 427 | |
other broadleaves | 0.1 | 95 | 0.2 | 137 | 0.1 | 224 | 0.1 | 505 | 0.4 | 103 | 1.7 | 50 | 0.2 | 46 | |
total | 0.2 | 349 | 2.1 | 71 | 7.3 | 24 | 3.5 | 71 | 4.8 | 29 | 7.6 | 20 | 1.8 | 29 | |
inside perimeter | spruce | 2.3 | 44 | -3.5 | 58 | 1.8 | 124 | 1.7 | 87 | 0.7 | 374 | 6.0 | 25 | 1.0 | 84 |
fir | 4.5 | 34 | 0.4 | 191 | 1.6 | 73 | 0.7 | 40 | 0.4 | 63 | -0.5 | 162 | 0.8 | 39 | |
pine | 0.5 | 80 | -0.9 | 60 | -0.6 | 77 | 0.3 | 145 | 0.5 | 61 | -0.7 | 74 | -0.2 | 116 | |
larch | . | . | -0.1 | 288 | -0.4 | 99 | 3.3 | 45 | 0.9 | 46 | 2.7 | 23 | 1.3 | 32 | |
stone pine | . | . | . | . | . | . | 0.2 | 90 | 0.3 | 61 | . | . | 0.1 | 57 | |
other conifers | . | . | 0.0 | 99 | . | . | -0.0 | 117 | 0.1 | 99 | . | . | 0.0 | 268 | |
beech | 3.1 | 66 | 0.9 | 59 | 2.5 | 27 | 0.4 | 61 | -0.0 | 835 | 0.8 | 55 | 0.9 | 23 | |
maple | 0.4 | 57 | 0.7 | 44 | 0.0 | 5194 | 0.2 | 55 | . | . | 0.1 | 99 | 0.2 | 38 | |
ash | 0.2 | 127 | 0.1 | 61 | 0.1 | 304 | 0.3 | 67 | . | . | 0.1 | 99 | 0.1 | 51 | |
oak | . | . | 0.0 | 99 | . | . | . | . | . | . | -0.0 | 99 | 0.0 | 135 | |
chestnut | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
other broadleaves | 0.1 | 357 | -0.1 | 73 | 0.1 | 424 | 0.3 | 63 | 0.5 | 76 | 1.0 | 78 | 0.3 | 50 | |
total | 11.1 | 26 | -2.4 | 103 | 5.0 | 65 | 7.4 | 30 | 3.4 | 77 | 9.5 | 21 | 4.6 | 24 | |
outside perimeter | spruce | -0.9 | 65 | 1.4 | 80 | -2.1 | 64 | 1.9 | 43 | 1.4 | 93 | 1.5 | 37 | 0.7 | 61 |
fir | 0.7 | 81 | 1.3 | 37 | 0.7 | 75 | -0.0 | 3160 | 0.2 | 41 | 0.3 | 56 | 0.6 | 28 | |
pine | -0.1 | 152 | 0.0 | 148 | -0.0 | 839 | 0.1 | 290 | -0.3 | 71 | 0.0 | 372 | -0.0 | 195 | |
larch | 0.0 | 112 | -0.1 | 124 | 0.1 | 178 | 1.2 | 31 | 0.7 | 46 | 1.0 | 22 | 0.5 | 18 | |
stone pine | . | . | 0.0 | 100 | . | . | 0.2 | 39 | 0.0 | 361 | . | . | 0.0 | 55 | |
other conifers | 0.1 | 49 | 0.0 | 75 | 0.0 | 71 | 0.0 | 83 | 0.0 | 72 | 0.0 | 100 | 0.0 | 31 | |
beech | 1.8 | 34 | 0.7 | 69 | 1.0 | 53 | 0.6 | 31 | 0.3 | 38 | 2.0 | 18 | 1.1 | 16 | |
maple | 0.4 | 51 | 0.6 | 27 | 0.7 | 28 | 0.3 | 35 | 0.2 | 45 | 0.2 | 34 | 0.4 | 14 | |
ash | 0.7 | 43 | 0.2 | 52 | 0.9 | 26 | 0.1 | 60 | 0.2 | 50 | 0.4 | 41 | 0.4 | 18 | |
oak | 0.1 | 138 | 0.0 | 73 | -0.0 | 209 | 0.2 | 62 | 0.1 | 100 | 0.3 | 27 | 0.1 | 28 | |
chestnut | . | . | . | . | . | . | 0.0 | 118 | 0.0 | 100 | 1.7 | 31 | 0.4 | 31 | |
other broadleaves | -0.1 | 135 | 0.2 | 90 | 0.1 | 199 | 0.6 | 43 | 0.5 | 50 | 1.2 | 25 | 0.5 | 22 | |
total | 2.6 | 45 | 4.4 | 32 | 1.4 | 123 | 5.4 | 22 | 3.3 | 42 | 8.7 | 10 | 4.7 | 12 | |
total | spruce | -1.9 | 22 | 0.0 | 1764 | 0.3 | 368 | 1.3 | 51 | 2.2 | 37 | 2.0 | 22 | -0.1 | 229 |
fir | 0.8 | 25 | 0.9 | 42 | 0.9 | 35 | 0.2 | 78 | 0.2 | 34 | 0.2 | 65 | 0.7 | 17 | |
pine | -0.5 | 21 | -0.0 | 636 | -0.1 | 129 | 0.1 | 312 | -0.2 | 110 | -0.1 | 103 | -0.2 | 26 | |
larch | 0.0 | 4161 | 0.0 | 439 | -0.0 | 390 | 2.0 | 24 | 0.7 | 36 | 1.4 | 15 | 0.4 | 15 | |
stone pine | . | . | 0.0 | 100 | . | . | 0.3 | 47 | 0.2 | 89 | 0.0 | 100 | 0.0 | 46 | |
other conifers | 0.2 | 30 | 0.0 | 53 | 0.0 | 62 | 0.0 | 328 | 0.1 | 38 | 0.0 | 100 | 0.1 | 25 | |
beech | 0.8 | 26 | 0.6 | 45 | 1.5 | 21 | 0.4 | 36 | 0.1 | 255 | 1.7 | 17 | 0.8 | 14 | |
maple | 0.4 | 16 | 0.7 | 17 | 0.6 | 22 | 0.2 | 29 | 0.2 | 33 | 0.2 | 33 | 0.4 | 9 | |
ash | 0.6 | 18 | 0.3 | 30 | 0.8 | 21 | 0.3 | 55 | 0.1 | 53 | 0.4 | 37 | 0.4 | 12 | |
oak | 0.1 | 116 | 0.0 | 38 | 0.0 | 301 | 0.2 | 41 | 0.1 | 71 | 0.2 | 27 | 0.1 | 38 | |
chestnut | 0.0 | 80 | 0.0 | 100 | . | . | 0.0 | 118 | 0.0 | 100 | 1.2 | 35 | 0.1 | 34 | |
other broadleaves | 0.1 | 120 | 0.1 | 88 | 0.1 | 143 | 0.4 | 47 | 0.5 | 48 | 1.3 | 22 | 0.3 | 21 | |
total | 0.6 | 99 | 2.7 | 36 | 4.1 | 28 | 5.5 | 18 | 4.0 | 23 | 8.6 | 9 | 3.1 | 12 |
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