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région de forêt protectrice | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Plateau/Jura | Nord des Alpes ouest | Nord des Alpes est | Sud-ouest des Alpes | Sud-est des Alpes | 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 | 0.3 | 0.2 | 5.2 | 0.9 | 4.3 | 1.0 | 9.8 | 1.6 | 6.0 | 1.1 | 4.4 | 1.0 | 3.9 | 0.3 | |
101-200 tiges/ha | 0.7 | 0.2 | 3.4 | 0.7 | 3.8 | 1.0 | 8.3 | 1.5 | 4.9 | 1.0 | 3.8 | 0.9 | 3.2 | 0.3 | |
201-300 tiges/ha | 0.1 | 0.1 | 1.1 | 0.4 | 1.0 | 0.5 | 1.6 | 0.7 | 1.4 | 0.6 | 0.9 | 0.4 | 0.8 | 0.1 | |
301-400 tiges/ha | 0.0 | . | 0.3 | 0.2 | 1.2 | 0.5 | 1.1 | 0.6 | 0.0 | . | 0.2 | 0.2 | 0.3 | 0.1 | |
401-500 tiges/ha | 0.0 | . | 0.3 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.1 | 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 | . | 0.3 | 0.3 | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
total | 1.1 | 0.3 | 10.3 | 1.2 | 10.2 | 1.5 | 21.2 | 2.2 | 12.3 | 1.6 | 9.4 | 1.4 | 8.3 | 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 | 60.2 | 1.3 | 50.7 | 2.0 | 45.2 | 2.5 | 57.4 | 2.6 | 53.7 | 2.3 | 68.6 | 2.0 | 56.8 | 0.8 | |
101-200 tiges/ha | 31.7 | 1.3 | 28.2 | 1.8 | 28.4 | 2.3 | 17.6 | 2.0 | 25.7 | 2.1 | 17.6 | 1.8 | 26.7 | 0.7 | |
201-300 tiges/ha | 5.8 | 0.6 | 8.4 | 1.1 | 12.6 | 1.6 | 3.3 | 0.9 | 7.4 | 1.2 | 3.7 | 0.9 | 6.7 | 0.4 | |
301-400 tiges/ha | 1.0 | 0.3 | 1.7 | 0.5 | 2.6 | 0.8 | 0.5 | 0.4 | 0.9 | 0.5 | 0.5 | 0.3 | 1.2 | 0.2 | |
401-500 tiges/ha | 0.3 | 0.1 | 0.7 | 0.3 | 0.7 | 0.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.1 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.3 | 0.3 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.2 | 0.2 | 0.0 | 0.0 | |
total | 98.9 | 0.3 | 89.7 | 1.2 | 89.8 | 1.5 | 78.8 | 2.2 | 87.7 | 1.6 | 90.6 | 1.4 | 91.7 | 0.4 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 60.5 | 1.3 | 55.9 | 1.9 | 49.5 | 2.5 | 67.2 | 2.4 | 59.7 | 2.2 | 73.0 | 1.9 | 60.7 | 0.7 | |
101-200 tiges/ha | 32.4 | 1.3 | 31.6 | 1.9 | 32.2 | 2.3 | 25.9 | 2.3 | 30.7 | 2.2 | 21.5 | 1.9 | 29.9 | 0.7 | |
201-300 tiges/ha | 5.8 | 0.7 | 9.5 | 1.2 | 13.6 | 1.7 | 4.9 | 1.1 | 8.7 | 1.3 | 4.6 | 1.0 | 7.5 | 0.4 | |
301-400 tiges/ha | 1.0 | 0.3 | 2.0 | 0.6 | 3.8 | 0.9 | 1.7 | 0.7 | 0.9 | 0.5 | 0.7 | 0.4 | 1.5 | 0.2 | |
401-500 tiges/ha | 0.3 | 0.1 | 1.0 | 0.4 | 0.7 | 0.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.1 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.3 | 0.3 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.3 | 0.0 | . | 0.2 | 0.2 | 0.1 | 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. 1357622. Birmensdorf, Swiss Federal Research Institute WSL