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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 ≥36 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 | 1.4 | 0.4 | 0.0 | . | 5.4 | 0.6 | 12.9 | 1.5 | 7.9 | 1.0 | 6.3 | 0.9 | 4.5 | 0.3 | |
101-200 tiges/ha | 1.0 | 0.3 | 0.1 | 0.1 | 3.9 | 0.5 | 9.1 | 1.3 | 3.7 | 0.7 | 3.4 | 0.7 | 2.9 | 0.2 | |
201-300 tiges/ha | 0.0 | . | 0.0 | . | 2.0 | 0.3 | 1.9 | 0.6 | 1.3 | 0.4 | 0.4 | 0.3 | 0.9 | 0.1 | |
301-400 tiges/ha | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | |
401-500 tiges/ha | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.2 | 0.2 | 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 | 2.4 | 0.5 | 0.1 | 0.1 | 11.4 | 0.8 | 24.2 | 2.0 | 13.2 | 1.3 | 10.3 | 1.1 | 8.4 | 0.4 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 56.4 | 1.5 | 48.6 | 1.3 | 48.0 | 1.2 | 56.8 | 2.2 | 56.3 | 1.8 | 74.4 | 1.6 | 54.7 | 0.6 | |
101-200 tiges/ha | 33.6 | 1.5 | 35.0 | 1.3 | 27.1 | 1.1 | 15.6 | 1.7 | 23.2 | 1.6 | 12.8 | 1.2 | 26.8 | 0.6 | |
201-300 tiges/ha | 6.6 | 0.8 | 14.0 | 1.0 | 10.1 | 0.8 | 2.9 | 0.8 | 6.2 | 0.9 | 2.1 | 0.5 | 8.3 | 0.4 | |
301-400 tiges/ha | 0.8 | 0.3 | 2.0 | 0.4 | 2.4 | 0.4 | 0.4 | 0.3 | 1.1 | 0.4 | 0.4 | 0.2 | 1.5 | 0.2 | |
401-500 tiges/ha | 0.1 | 0.1 | 0.2 | 0.1 | 0.7 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.1 | |
501-600 tiges/ha | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.0 | . | 0.0 | . | 0.0 | . | 0.1 | 0.0 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
total | 97.6 | 0.5 | 99.9 | 0.1 | 88.6 | 0.8 | 75.8 | 2.0 | 86.8 | 1.3 | 89.7 | 1.1 | 91.6 | 0.4 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 57.8 | 1.5 | 48.6 | 1.3 | 53.5 | 1.2 | 69.7 | 2.1 | 64.2 | 1.8 | 80.7 | 1.4 | 59.2 | 0.6 | |
101-200 tiges/ha | 34.5 | 1.5 | 35.1 | 1.3 | 30.9 | 1.2 | 24.7 | 2.0 | 26.9 | 1.7 | 16.2 | 1.3 | 29.6 | 0.6 | |
201-300 tiges/ha | 6.6 | 0.8 | 14.0 | 1.0 | 12.1 | 0.8 | 4.8 | 1.0 | 7.5 | 1.0 | 2.6 | 0.6 | 9.2 | 0.4 | |
301-400 tiges/ha | 0.8 | 0.3 | 2.0 | 0.4 | 2.4 | 0.4 | 0.6 | 0.4 | 1.4 | 0.4 | 0.5 | 0.3 | 1.5 | 0.2 | |
401-500 tiges/ha | 0.1 | 0.1 | 0.2 | 0.1 | 0.8 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.1 | |
501-600 tiges/ha | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | 0.0 | . | 0.0 | . | 0.1 | 0.0 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
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. 1357396. Birmensdorf, Swiss Federal Research Institute WSL