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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 avalanches (2022) | nombre de tiges/ha (DHP ≥24 cm; vifs sur pied; par classes) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | . | . | . | . | . | . | . | . | . | . | . | . | . | . |
0-100 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
101-200 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
201-300 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
301-400 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
401-500 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
501-600 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
>600 tiges/ha | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
total | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
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 | . | 16.4 | 3.9 | 20.1 | 5.0 | 21.6 | 6.0 | 21.2 | 6.3 | 18.2 | 2.4 | |
101-200 tiges/ha | 41.8 | 14.3 | 0.0 | . | 26.0 | 4.6 | 21.8 | 5.2 | 23.8 | 6.3 | 31.3 | 7.2 | 26.1 | 2.7 | |
201-300 tiges/ha | 33.8 | 13.8 | 100.0 | 0.0 | 20.8 | 4.3 | 32.3 | 5.8 | 32.7 | 6.9 | 26.1 | 6.8 | 27.7 | 2.8 | |
301-400 tiges/ha | 8.9 | 8.5 | 0.0 | . | 14.4 | 3.6 | 10.2 | 3.7 | 11.0 | 4.7 | 9.6 | 4.5 | 11.6 | 2.0 | |
401-500 tiges/ha | 15.6 | 10.1 | 0.0 | . | 9.6 | 3.0 | 10.6 | 3.8 | 6.6 | 3.7 | 4.7 | 3.3 | 8.7 | 1.7 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 7.4 | 2.7 | 1.6 | 1.6 | 2.2 | 2.1 | 7.1 | 4.0 | 4.6 | 1.3 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 5.4 | 2.4 | 3.2 | 2.2 | 2.2 | 2.1 | 0.0 | . | 3.1 | 1.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 27.9 | 1.9 | 34.2 | 1.7 | 25.5 | 1.6 | 31.5 | 3.4 | 28.3 | 2.6 | 26.9 | 2.5 | 29.1 | 0.8 | |
101-200 tiges/ha | 32.1 | 2.1 | 30.0 | 1.7 | 29.3 | 1.7 | 30.1 | 3.4 | 26.7 | 2.6 | 22.9 | 2.4 | 29.1 | 0.9 | |
201-300 tiges/ha | 21.0 | 1.8 | 20.5 | 1.5 | 20.0 | 1.5 | 20.6 | 3.0 | 24.2 | 2.5 | 25.0 | 2.5 | 21.4 | 0.8 | |
301-400 tiges/ha | 11.2 | 1.4 | 10.3 | 1.1 | 13.3 | 1.2 | 7.7 | 2.0 | 12.7 | 1.9 | 14.4 | 2.0 | 11.8 | 0.6 | |
401-500 tiges/ha | 5.3 | 1.0 | 2.6 | 0.6 | 6.3 | 0.9 | 6.1 | 1.8 | 4.8 | 1.2 | 6.7 | 1.5 | 5.0 | 0.4 | |
501-600 tiges/ha | 2.0 | 0.6 | 1.9 | 0.5 | 3.1 | 0.7 | 3.5 | 1.4 | 2.0 | 0.8 | 2.7 | 0.9 | 2.4 | 0.3 | |
>600 tiges/ha | 0.6 | 0.3 | 0.5 | 0.3 | 2.5 | 0.6 | 0.6 | 0.6 | 1.4 | 0.7 | 1.4 | 0.7 | 1.3 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 27.2 | 1.9 | 34.1 | 1.7 | 24.5 | 1.5 | 28.5 | 2.8 | 27.4 | 2.3 | 26.3 | 2.3 | 28.1 | 0.8 | |
101-200 tiges/ha | 32.4 | 2.1 | 29.9 | 1.7 | 29.0 | 1.6 | 27.9 | 2.9 | 26.3 | 2.4 | 23.9 | 2.3 | 28.8 | 0.8 | |
201-300 tiges/ha | 21.3 | 1.8 | 20.6 | 1.5 | 20.1 | 1.4 | 23.7 | 2.7 | 25.4 | 2.3 | 25.1 | 2.4 | 21.9 | 0.8 | |
301-400 tiges/ha | 11.1 | 1.4 | 10.3 | 1.1 | 13.4 | 1.2 | 8.3 | 1.7 | 12.5 | 1.8 | 13.8 | 1.9 | 11.8 | 0.6 | |
401-500 tiges/ha | 5.5 | 1.0 | 2.6 | 0.6 | 6.7 | 0.9 | 7.3 | 1.7 | 5.0 | 1.2 | 6.5 | 1.3 | 5.3 | 0.4 | |
501-600 tiges/ha | 1.9 | 0.6 | 1.9 | 0.5 | 3.6 | 0.7 | 3.0 | 1.1 | 2.0 | 0.8 | 3.2 | 1.0 | 2.6 | 0.3 | |
>600 tiges/ha | 0.6 | 0.3 | 0.5 | 0.3 | 2.8 | 0.6 | 1.3 | 0.7 | 1.5 | 0.7 | 1.2 | 0.6 | 1.4 | 0.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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. 1334757. Birmensdorf, Swiss Federal Research Institute WSL