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région biogéographique | |||||||||||||||
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Jura | Plateau | nord des Alpes | ouest des Alpes centrales | est des Alpes centrales | Sud des Alpes | Suisse | |||||||||
forêt de protection contre des coulées de boue/glissements de terrain (2022) | nombre de tiges/ha (DHP ≥12 cm; vifs sur pied; par classes) | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% |
pas d'indication | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
101-200 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
201-300 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
301-400 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
401-500 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
total | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
à l'intérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 1.0 | 57 | 0.0 | . | 2.8 | 36 | 1.4 | 50 | 1.7 | 45 | 3.4 | 31 | 10.4 | 18 | |
101-200 tiges/ha | 2.2 | 41 | 1.4 | 50 | 4.2 | 29 | 3.2 | 33 | 2.8 | 35 | 2.5 | 38 | 16.4 | 15 | |
201-300 tiges/ha | 3.5 | 31 | 1.3 | 50 | 5.0 | 26 | 6.1 | 24 | 3.9 | 30 | 3.0 | 35 | 22.7 | 12 | |
301-400 tiges/ha | 4.2 | 28 | 1.1 | 58 | 6.2 | 24 | 4.3 | 29 | 3.1 | 33 | 4.5 | 28 | 23.3 | 12 | |
401-500 tiges/ha | 2.9 | 35 | 0.4 | 100 | 4.1 | 29 | 3.9 | 30 | 1.5 | 50 | 5.2 | 26 | 17.8 | 14 | |
501-600 tiges/ha | 1.1 | 58 | 0.4 | 100 | 5.6 | 25 | 1.4 | 50 | 1.8 | 45 | 2.6 | 38 | 12.8 | 17 | |
>600 tiges/ha | 2.4 | 38 | 0.3 | 100 | 9.0 | 20 | 6.4 | 23 | 4.3 | 29 | 7.0 | 22 | 29.4 | 11 | |
total | 17.2 | 14 | 5.0 | 27 | 37.0 | 9 | 26.7 | 11 | 19.1 | 13 | 28.1 | 10 | 132.9 | 5 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 17.9 | 14 | 32.3 | 10 | 38.3 | 10 | 16.0 | 15 | 22.0 | 13 | 18.6 | 13 | 145.0 | 5 | |
101-200 tiges/ha | 29.9 | 10 | 46.6 | 8 | 44.2 | 9 | 10.6 | 18 | 19.7 | 13 | 22.9 | 12 | 173.9 | 4 | |
201-300 tiges/ha | 27.0 | 11 | 47.6 | 8 | 48.3 | 8 | 12.0 | 17 | 25.8 | 11 | 14.3 | 15 | 175.0 | 4 | |
301-400 tiges/ha | 29.6 | 10 | 41.6 | 9 | 43.2 | 9 | 8.6 | 20 | 16.2 | 15 | 21.5 | 12 | 160.6 | 4 | |
401-500 tiges/ha | 20.9 | 12 | 29.7 | 10 | 34.6 | 10 | 11.5 | 17 | 14.2 | 16 | 13.8 | 15 | 124.8 | 5 | |
501-600 tiges/ha | 20.7 | 13 | 18.4 | 14 | 24.4 | 11 | 7.8 | 21 | 10.9 | 18 | 11.6 | 17 | 93.8 | 6 | |
>600 tiges/ha | 27.5 | 11 | 36.8 | 9 | 61.4 | 7 | 16.0 | 15 | 29.0 | 11 | 34.7 | 9 | 205.5 | 4 | |
total | 173.4 | 3 | 253.0 | 2 | 294.4 | 3 | 82.6 | 6 | 137.8 | 4 | 137.4 | 3 | 1078.5 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 18.9 | 13 | 32.3 | 10 | 41.1 | 9 | 17.5 | 14 | 23.6 | 12 | 22.0 | 12 | 155.4 | 5 | |
101-200 tiges/ha | 32.0 | 10 | 48.1 | 8 | 48.5 | 8 | 13.9 | 16 | 22.5 | 12 | 25.3 | 11 | 190.3 | 4 | |
201-300 tiges/ha | 30.4 | 10 | 48.9 | 8 | 53.4 | 8 | 18.0 | 14 | 29.7 | 11 | 17.3 | 14 | 197.7 | 4 | |
301-400 tiges/ha | 33.7 | 9 | 42.7 | 8 | 49.4 | 8 | 12.9 | 16 | 19.3 | 13 | 25.9 | 11 | 183.9 | 4 | |
401-500 tiges/ha | 23.8 | 12 | 30.1 | 10 | 38.6 | 9 | 15.4 | 15 | 15.7 | 15 | 19.0 | 13 | 142.6 | 5 | |
501-600 tiges/ha | 21.8 | 12 | 18.8 | 13 | 30.0 | 10 | 9.2 | 19 | 12.7 | 16 | 14.2 | 15 | 106.7 | 6 | |
>600 tiges/ha | 29.9 | 10 | 37.2 | 9 | 70.4 | 7 | 22.4 | 12 | 33.3 | 10 | 41.7 | 8 | 234.9 | 3 | |
total | 190.6 | 2 | 258.0 | 2 | 331.3 | 2 | 109.2 | 5 | 156.9 | 4 | 165.4 | 2 | 1211.5 | 1 |
Table citation
Abegg, M.; Ahles, P.; Allgaier Leuch, B.; Cioldi, F.; Didion, M.; Düggelin, C.; Fischer, C.; Herold, A.; Meile, R.; Rohner, B.; Rösler, E.; Speich, S.; Temperli, C.; Traub, B.,
2023: Swiss national forest inventory - Result table No. 1334955. Birmensdorf, Swiss Federal Research Institute WSL