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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) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
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 | . | 11.3 | 5.4 | 4.9 | 4.7 | 0.0 | . | 11.9 | 5.6 | 8.1 | 2.6 | |
101-200 tiges/ha | 0.0 | . | 48.5 | 35.3 | 8.7 | 4.8 | 5.0 | 4.8 | 40.6 | 15.6 | 6.3 | 4.3 | 10.4 | 3.0 | |
201-300 tiges/ha | 12.4 | 11.6 | 0.0 | . | 7.4 | 4.1 | 19.2 | 8.6 | 10.3 | 9.8 | 6.3 | 4.3 | 9.8 | 2.8 | |
301-400 tiges/ha | 37.2 | 17.1 | 0.0 | . | 22.2 | 6.9 | 9.6 | 6.5 | 8.6 | 8.3 | 18.9 | 7.0 | 18.1 | 3.7 | |
401-500 tiges/ha | 12.4 | 11.6 | 51.5 | 35.3 | 10.6 | 5.1 | 19.3 | 8.7 | 10.3 | 9.8 | 12.8 | 6.0 | 13.9 | 3.3 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 17.7 | 6.6 | 14.0 | 7.5 | 10.0 | 9.5 | 2.7 | 2.7 | 10.1 | 2.9 | |
>600 tiges/ha | 38.1 | 17.2 | 0.0 | . | 22.1 | 6.9 | 28.1 | 9.8 | 20.2 | 12.8 | 41.2 | 8.7 | 29.6 | 4.4 | |
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 | 8.4 | 1.2 | 12.4 | 1.2 | 9.3 | 1.1 | 9.3 | 1.9 | 12.4 | 1.8 | 8.3 | 1.5 | 10.2 | 0.6 | |
101-200 tiges/ha | 16.2 | 1.6 | 18.4 | 1.4 | 15.4 | 1.3 | 11.2 | 2.1 | 13.3 | 1.9 | 12.7 | 1.9 | 15.4 | 0.7 | |
201-300 tiges/ha | 16.4 | 1.6 | 18.9 | 1.4 | 17.4 | 1.4 | 17.9 | 2.6 | 19.2 | 2.2 | 11.7 | 1.8 | 17.2 | 0.7 | |
301-400 tiges/ha | 18.2 | 1.7 | 16.7 | 1.4 | 14.8 | 1.3 | 15.0 | 2.4 | 13.7 | 1.9 | 16.3 | 2.1 | 15.9 | 0.7 | |
401-500 tiges/ha | 12.9 | 1.5 | 11.4 | 1.2 | 12.6 | 1.2 | 15.9 | 2.4 | 10.8 | 1.7 | 13.6 | 1.9 | 12.5 | 0.6 | |
501-600 tiges/ha | 12.1 | 1.5 | 7.5 | 1.0 | 9.3 | 1.0 | 8.5 | 1.9 | 9.0 | 1.6 | 10.8 | 1.8 | 9.4 | 0.5 | |
>600 tiges/ha | 15.7 | 1.6 | 14.8 | 1.3 | 21.2 | 1.5 | 22.1 | 2.8 | 21.6 | 2.2 | 26.7 | 2.4 | 19.4 | 0.7 | |
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 | 8.3 | 1.2 | 12.4 | 1.2 | 9.4 | 1.0 | 8.9 | 1.8 | 12.1 | 1.7 | 8.6 | 1.5 | 10.1 | 0.5 | |
101-200 tiges/ha | 16.0 | 1.6 | 18.5 | 1.4 | 15.1 | 1.3 | 10.7 | 2.0 | 14.1 | 1.9 | 12.1 | 1.7 | 15.2 | 0.7 | |
201-300 tiges/ha | 16.3 | 1.6 | 18.8 | 1.4 | 17.0 | 1.3 | 18.0 | 2.5 | 18.9 | 2.1 | 11.2 | 1.7 | 16.9 | 0.7 | |
301-400 tiges/ha | 18.5 | 1.7 | 16.6 | 1.4 | 15.1 | 1.3 | 14.6 | 2.3 | 13.5 | 1.8 | 16.5 | 2.0 | 16.0 | 0.7 | |
401-500 tiges/ha | 12.9 | 1.5 | 11.5 | 1.2 | 12.5 | 1.2 | 16.2 | 2.3 | 10.8 | 1.7 | 13.5 | 1.9 | 12.6 | 0.6 | |
501-600 tiges/ha | 11.9 | 1.4 | 7.4 | 1.0 | 9.6 | 1.0 | 9.0 | 1.8 | 9.0 | 1.5 | 10.0 | 1.6 | 9.4 | 0.5 | |
>600 tiges/ha | 16.1 | 1.6 | 14.7 | 1.3 | 21.3 | 1.4 | 22.6 | 2.7 | 21.5 | 2.2 | 28.0 | 2.4 | 19.7 | 0.7 | |
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. 1311618. Birmensdorf, Swiss Federal Research Institute WSL