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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 | 0.0 | . | 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 | . | 1.9 | 0.4 | 4.5 | 1.2 | 3.7 | 0.9 | 2.4 | 0.7 | 1.7 | 0.2 | |
101-200 tiges/ha | 1.0 | 0.4 | 0.0 | . | 2.8 | 0.5 | 5.2 | 1.3 | 2.8 | 0.8 | 3.2 | 0.8 | 2.2 | 0.3 | |
201-300 tiges/ha | 0.8 | 0.4 | 0.1 | 0.1 | 2.2 | 0.5 | 7.2 | 1.5 | 3.8 | 0.9 | 2.7 | 0.8 | 2.2 | 0.3 | |
301-400 tiges/ha | 0.2 | 0.2 | 0.0 | . | 1.6 | 0.4 | 2.6 | 0.9 | 1.2 | 0.5 | 0.9 | 0.4 | 1.0 | 0.2 | |
401-500 tiges/ha | 0.4 | 0.3 | 0.0 | . | 1.0 | 0.3 | 2.4 | 0.9 | 0.7 | 0.4 | 0.4 | 0.3 | 0.7 | 0.1 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.7 | 0.3 | 0.4 | 0.4 | 0.5 | 0.3 | 0.7 | 0.4 | 0.4 | 0.1 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.5 | 0.2 | 0.7 | 0.5 | 0.2 | 0.2 | 0.0 | . | 0.2 | 0.1 | |
total | 2.3 | 0.7 | 0.1 | 0.1 | 10.7 | 1.0 | 23.1 | 2.5 | 12.9 | 1.6 | 10.3 | 1.4 | 8.4 | 0.5 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 28.0 | 1.9 | 34.7 | 1.7 | 26.0 | 1.4 | 29.3 | 2.6 | 29.0 | 2.1 | 32.1 | 2.1 | 29.7 | 0.7 | |
101-200 tiges/ha | 31.4 | 2.0 | 29.6 | 1.7 | 24.3 | 1.4 | 21.8 | 2.4 | 21.9 | 2.0 | 19.3 | 1.9 | 25.4 | 0.7 | |
201-300 tiges/ha | 20.0 | 1.7 | 20.3 | 1.5 | 16.9 | 1.2 | 13.8 | 2.0 | 19.9 | 1.9 | 19.5 | 1.9 | 18.6 | 0.7 | |
301-400 tiges/ha | 10.6 | 1.3 | 10.3 | 1.1 | 11.9 | 1.0 | 5.5 | 1.3 | 9.5 | 1.4 | 10.9 | 1.5 | 10.3 | 0.5 | |
401-500 tiges/ha | 5.1 | 1.0 | 2.5 | 0.6 | 5.3 | 0.7 | 3.8 | 1.1 | 3.5 | 0.9 | 4.6 | 1.0 | 4.2 | 0.3 | |
501-600 tiges/ha | 2.1 | 0.6 | 1.9 | 0.5 | 2.4 | 0.5 | 2.1 | 0.9 | 2.1 | 0.7 | 2.3 | 0.7 | 2.2 | 0.3 | |
>600 tiges/ha | 0.6 | 0.3 | 0.5 | 0.3 | 2.5 | 0.5 | 0.7 | 0.5 | 1.2 | 0.5 | 0.9 | 0.5 | 1.2 | 0.2 | |
total | 97.7 | 0.7 | 99.9 | 0.1 | 89.3 | 1.0 | 76.9 | 2.5 | 87.1 | 1.6 | 89.7 | 1.4 | 91.6 | 0.5 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 28.0 | 1.9 | 34.7 | 1.7 | 27.9 | 1.4 | 33.8 | 2.7 | 32.7 | 2.2 | 34.6 | 2.1 | 31.4 | 0.7 | |
101-200 tiges/ha | 32.3 | 2.0 | 29.6 | 1.7 | 27.1 | 1.5 | 27.0 | 2.6 | 24.7 | 2.1 | 22.5 | 2.0 | 27.5 | 0.8 | |
201-300 tiges/ha | 20.8 | 1.8 | 20.4 | 1.5 | 19.0 | 1.3 | 21.0 | 2.4 | 23.6 | 2.0 | 22.2 | 2.0 | 20.8 | 0.7 | |
301-400 tiges/ha | 10.8 | 1.3 | 10.3 | 1.1 | 13.4 | 1.1 | 8.1 | 1.6 | 10.7 | 1.5 | 11.8 | 1.5 | 11.3 | 0.5 | |
401-500 tiges/ha | 5.5 | 1.0 | 2.5 | 0.6 | 6.3 | 0.8 | 6.1 | 1.4 | 4.2 | 1.0 | 5.1 | 1.1 | 4.9 | 0.4 | |
501-600 tiges/ha | 2.1 | 0.6 | 1.9 | 0.5 | 3.2 | 0.6 | 2.5 | 0.9 | 2.6 | 0.8 | 3.0 | 0.8 | 2.5 | 0.3 | |
>600 tiges/ha | 0.6 | 0.3 | 0.5 | 0.3 | 3.1 | 0.6 | 1.4 | 0.7 | 1.4 | 0.6 | 0.9 | 0.5 | 1.5 | 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. 1335374. Birmensdorf, Swiss Federal Research Institute WSL