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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 | 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 | 0.7 | 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 | 0.5 | 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 | 113 | 0.2 | 137 | 0.1 | 224 | 0.1 | 505 | 0.4 | 103 | 1.7 | 50 | 0.2 | 49 | |
total | 0.2 | 359 | 2.1 | 71 | 7.3 | 24 | 3.5 | 71 | 4.8 | 29 | 7.6 | 20 | 1.8 | 29 | |
inside perimeter | spruce | -0.1 | 1251 | -5.4 | 87 | -0.8 | 438 | 1.2 | 139 | 2.1 | 95 | 1.9 | 54 | -0.2 | 739 |
fir | -0.8 | 138 | 1.1 | 45 | 1.3 | 73 | -0.2 | 98 | 1.0 | 61 | 0.1 | 98 | 0.4 | 63 | |
pine | -1.7 | 84 | -0.1 | 157 | 0.4 | 85 | 0.6 | 51 | 1.5 | 125 | . | . | 0.1 | 196 | |
larch | . | . | -0.6 | 124 | . | . | 1.6 | 66 | 0.1 | 91 | 0.8 | 60 | 0.5 | 62 | |
stone pine | . | . | 0.1 | 97 | . | . | 0.2 | 75 | 0.0 | 91 | . | . | 0.1 | 62 | |
other conifers | . | . | . | . | 0.1 | 142 | . | . | . | . | . | . | 0.0 | 143 | |
beech | 3.8 | 47 | 0.3 | 1265 | 1.3 | 88 | 0.2 | 154 | 1.1 | 91 | 0.8 | 65 | 1.0 | 64 | |
maple | -0.2 | 312 | 0.1 | 683 | 0.4 | 96 | -0.1 | 216 | . | . | 0.4 | 72 | 0.2 | 81 | |
ash | -0.2 | 236 | 0.6 | 128 | 0.6 | 102 | 0.4 | 82 | . | . | 1.5 | 91 | 0.7 | 60 | |
oak | 0.3 | 95 | 0.1 | 97 | -0.5 | 98 | -0.1 | 98 | . | . | 0.0 | 98 | -0.1 | 141 | |
chestnut | . | . | . | . | . | . | 0.0 | 306 | . | . | 2.1 | 65 | 0.6 | 65 | |
other broadleaves | -0.3 | 113 | 0.3 | 164 | 0.3 | 192 | 1.0 | 60 | . | . | 3.8 | 40 | 1.3 | 36 | |
total | 0.7 | 496 | -3.6 | 160 | 3.3 | 122 | 4.7 | 46 | 5.8 | 47 | 11.4 | 21 | 4.6 | 35 | |
outside perimeter | spruce | -0.8 | 76 | 0.8 | 119 | -1.4 | 89 | 1.9 | 42 | 1.2 | 99 | 2.1 | 28 | 0.8 | 48 |
fir | 1.1 | 49 | 1.2 | 39 | 0.8 | 64 | 0.3 | 88 | 0.2 | 38 | 0.2 | 102 | 0.6 | 24 | |
pine | 0.1 | 275 | -0.1 | 91 | -0.2 | 57 | 0.1 | 232 | -0.2 | 113 | -0.1 | 82 | -0.1 | 89 | |
larch | 0.0 | 112 | -0.0 | 196 | -0.0 | 295 | 1.9 | 32 | 0.8 | 35 | 1.3 | 18 | 0.7 | 17 | |
stone pine | . | . | . | . | . | . | 0.3 | 43 | 0.1 | 103 | . | . | 0.1 | 43 | |
other conifers | 0.1 | 49 | 0.0 | 67 | 0.0 | 78 | 0.0 | 807 | 0.0 | 65 | 0.0 | 100 | 0.0 | 34 | |
beech | 1.7 | 35 | 0.7 | 50 | 1.2 | 38 | 0.6 | 28 | 0.2 | 53 | 1.9 | 18 | 1.1 | 14 | |
maple | 0.4 | 45 | 0.6 | 23 | 0.6 | 31 | 0.3 | 28 | 0.2 | 45 | 0.2 | 37 | 0.4 | 14 | |
ash | 0.8 | 39 | 0.2 | 50 | 0.7 | 27 | 0.2 | 54 | 0.1 | 50 | 0.3 | 33 | 0.3 | 17 | |
oak | 0.1 | 175 | 0.0 | 70 | 0.0 | 61 | 0.2 | 56 | 0.0 | 100 | 0.3 | 27 | 0.1 | 25 | |
chestnut | . | . | . | . | . | . | 0.0 | 100 | 0.0 | 100 | 1.4 | 35 | 0.3 | 35 | |
other broadleaves | 0.0 | 1337 | 0.1 | 122 | 0.1 | 262 | 0.4 | 44 | 0.5 | 42 | 0.9 | 29 | 0.4 | 23 | |
total | 3.5 | 33 | 3.5 | 36 | 1.9 | 84 | 6.2 | 19 | 3.3 | 39 | 8.5 | 10 | 4.7 | 11 | |
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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