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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 chutes de pierres ou de blocs (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 | 0.0 | . | 0.0 | . | 2.1 | 41 | 0.4 | 100 | 0.0 | . | 2.4 | 38 | 4.9 | 27 | |
101-200 tiges/ha | 0.0 | . | 0.4 | 100 | 1.1 | 58 | 0.4 | 100 | 1.8 | 45 | 1.5 | 50 | 5.1 | 27 | |
201-300 tiges/ha | 0.3 | 100 | 0.0 | . | 0.9 | 58 | 1.8 | 45 | 0.7 | 71 | 1.1 | 58 | 4.9 | 27 | |
301-400 tiges/ha | 1.0 | 58 | 0.0 | . | 2.7 | 35 | 0.7 | 71 | 0.7 | 71 | 2.2 | 41 | 7.4 | 22 | |
401-500 tiges/ha | 0.3 | 100 | 0.4 | 100 | 1.7 | 45 | 1.4 | 50 | 0.4 | 100 | 1.5 | 50 | 5.7 | 25 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 2.2 | 41 | 1.0 | 58 | 0.4 | 100 | 0.6 | 70 | 4.2 | 29 | |
>600 tiges/ha | 1.1 | 58 | 0.0 | . | 3.5 | 32 | 2.1 | 41 | 1.1 | 58 | 4.9 | 27 | 12.6 | 17 | |
total | 2.8 | 35 | 0.8 | 71 | 14.2 | 15 | 7.8 | 21 | 5.0 | 27 | 14.2 | 15 | 44.8 | 9 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 17.0 | 14 | 32.3 | 10 | 33.8 | 10 | 13.5 | 16 | 21.1 | 13 | 15.1 | 14 | 132.8 | 5 | |
101-200 tiges/ha | 31.7 | 10 | 47.7 | 8 | 45.7 | 9 | 12.4 | 17 | 20.1 | 13 | 23.1 | 12 | 180.7 | 4 | |
201-300 tiges/ha | 29.7 | 10 | 48.2 | 8 | 51.8 | 8 | 15.9 | 15 | 28.3 | 11 | 16.2 | 14 | 190.1 | 4 | |
301-400 tiges/ha | 32.7 | 10 | 42.0 | 9 | 44.8 | 8 | 12.2 | 17 | 18.6 | 14 | 23.7 | 12 | 174.0 | 4 | |
401-500 tiges/ha | 23.5 | 12 | 29.3 | 10 | 36.5 | 9 | 13.6 | 16 | 15.3 | 15 | 16.8 | 14 | 135.0 | 5 | |
501-600 tiges/ha | 21.8 | 12 | 18.8 | 13 | 27.1 | 11 | 7.4 | 22 | 12.0 | 17 | 13.2 | 16 | 100.3 | 6 | |
>600 tiges/ha | 28.9 | 10 | 37.2 | 9 | 65.6 | 7 | 19.6 | 13 | 31.2 | 10 | 36.4 | 9 | 218.8 | 4 | |
total | 185.2 | 2 | 255.4 | 2 | 305.3 | 2 | 94.6 | 5 | 146.5 | 4 | 144.6 | 3 | 1131.7 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 17.0 | 14 | 32.3 | 10 | 36.0 | 10 | 13.9 | 16 | 21.1 | 13 | 17.5 | 13 | 137.7 | 5 | |
101-200 tiges/ha | 31.7 | 10 | 48.1 | 8 | 46.8 | 8 | 12.8 | 16 | 21.8 | 12 | 24.6 | 11 | 185.8 | 4 | |
201-300 tiges/ha | 30.1 | 10 | 48.2 | 8 | 52.7 | 8 | 17.7 | 14 | 29.0 | 11 | 17.3 | 14 | 195.0 | 4 | |
301-400 tiges/ha | 33.7 | 9 | 42.0 | 9 | 47.6 | 8 | 12.9 | 16 | 19.3 | 13 | 25.9 | 11 | 181.4 | 4 | |
401-500 tiges/ha | 23.8 | 12 | 29.8 | 10 | 38.2 | 9 | 15.0 | 15 | 15.7 | 15 | 18.3 | 13 | 140.8 | 5 | |
501-600 tiges/ha | 21.8 | 12 | 18.8 | 13 | 29.3 | 10 | 8.5 | 20 | 12.4 | 17 | 13.9 | 16 | 104.5 | 6 | |
>600 tiges/ha | 29.9 | 10 | 37.2 | 9 | 69.1 | 7 | 21.7 | 12 | 32.2 | 10 | 41.3 | 8 | 231.4 | 4 | |
total | 188.0 | 2 | 256.2 | 2 | 319.5 | 2 | 102.4 | 5 | 151.5 | 4 | 158.8 | 2 | 1176.4 | 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. 1311008. Birmensdorf, Swiss Federal Research Institute WSL