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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 | . | 2.6 | 0.4 | 5.3 | 1.0 | 3.5 | 0.7 | 2.2 | 0.5 | 1.9 | 0.2 | |
101-200 tiges/ha | 0.8 | 0.3 | 0.0 | . | 2.7 | 0.4 | 5.6 | 1.0 | 3.9 | 0.7 | 3.7 | 0.7 | 2.3 | 0.2 | |
201-300 tiges/ha | 0.7 | 0.3 | 0.1 | 0.1 | 2.4 | 0.4 | 4.4 | 0.9 | 2.9 | 0.6 | 2.5 | 0.5 | 1.9 | 0.2 | |
301-400 tiges/ha | 0.3 | 0.2 | 0.0 | . | 1.8 | 0.3 | 3.9 | 0.9 | 1.6 | 0.5 | 0.5 | 0.2 | 1.1 | 0.1 | |
401-500 tiges/ha | 0.5 | 0.2 | 0.0 | . | 0.5 | 0.2 | 1.4 | 0.5 | 0.9 | 0.3 | 0.2 | 0.2 | 0.5 | 0.1 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.6 | 0.2 | 1.0 | 0.4 | 0.3 | 0.2 | 0.5 | 0.3 | 0.3 | 0.1 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.5 | 0.2 | 1.2 | 0.5 | 0.3 | 0.2 | 0.4 | 0.2 | 0.3 | 0.1 | |
total | 2.3 | 0.5 | 0.1 | 0.1 | 11.0 | 0.8 | 22.8 | 1.9 | 13.4 | 1.2 | 9.9 | 1.0 | 8.3 | 0.3 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 22.5 | 1.2 | 29.5 | 1.1 | 26.1 | 1.0 | 31.7 | 2.0 | 31.6 | 1.7 | 38.5 | 1.6 | 29.1 | 0.5 | |
101-200 tiges/ha | 27.9 | 1.4 | 25.3 | 1.2 | 20.6 | 1.0 | 21.8 | 1.8 | 22.0 | 1.5 | 23.7 | 1.5 | 23.5 | 0.6 | |
201-300 tiges/ha | 22.7 | 1.3 | 23.2 | 1.1 | 18.8 | 1.0 | 10.0 | 1.3 | 16.0 | 1.3 | 14.2 | 1.2 | 18.7 | 0.5 | |
301-400 tiges/ha | 14.7 | 1.1 | 12.9 | 0.9 | 10.6 | 0.8 | 6.7 | 1.1 | 10.0 | 1.1 | 8.3 | 1.0 | 11.0 | 0.4 | |
401-500 tiges/ha | 6.3 | 0.8 | 5.8 | 0.6 | 7.0 | 0.6 | 4.0 | 0.9 | 4.4 | 0.7 | 3.1 | 0.6 | 5.5 | 0.3 | |
501-600 tiges/ha | 2.4 | 0.5 | 1.8 | 0.4 | 3.1 | 0.4 | 2.6 | 0.7 | 1.6 | 0.5 | 1.4 | 0.4 | 2.2 | 0.2 | |
>600 tiges/ha | 1.2 | 0.4 | 1.5 | 0.3 | 2.7 | 0.4 | 0.6 | 0.3 | 1.1 | 0.4 | 0.9 | 0.3 | 1.5 | 0.2 | |
total | 97.7 | 0.5 | 99.9 | 0.1 | 89.0 | 0.8 | 77.2 | 1.9 | 86.6 | 1.2 | 90.1 | 1.0 | 91.7 | 0.3 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 22.5 | 1.2 | 29.5 | 1.1 | 28.7 | 1.1 | 37.0 | 2.1 | 35.2 | 1.7 | 40.7 | 1.6 | 31.0 | 0.5 | |
101-200 tiges/ha | 28.7 | 1.5 | 25.3 | 1.2 | 23.3 | 1.1 | 27.3 | 2.0 | 25.8 | 1.6 | 27.3 | 1.6 | 25.8 | 0.6 | |
201-300 tiges/ha | 23.4 | 1.3 | 23.3 | 1.1 | 21.2 | 1.0 | 14.4 | 1.6 | 18.9 | 1.4 | 16.8 | 1.3 | 20.5 | 0.5 | |
301-400 tiges/ha | 15.0 | 1.1 | 12.9 | 0.9 | 12.4 | 0.8 | 10.6 | 1.4 | 11.6 | 1.2 | 8.7 | 1.0 | 12.2 | 0.4 | |
401-500 tiges/ha | 6.9 | 0.8 | 5.8 | 0.6 | 7.5 | 0.7 | 5.3 | 1.0 | 5.3 | 0.8 | 3.4 | 0.6 | 6.0 | 0.3 | |
501-600 tiges/ha | 2.4 | 0.5 | 1.8 | 0.4 | 3.6 | 0.5 | 3.6 | 0.8 | 1.9 | 0.5 | 1.9 | 0.5 | 2.6 | 0.2 | |
>600 tiges/ha | 1.2 | 0.4 | 1.5 | 0.3 | 3.2 | 0.4 | 1.8 | 0.6 | 1.3 | 0.4 | 1.2 | 0.4 | 1.9 | 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. 1335135. Birmensdorf, Swiss Federal Research Institute WSL