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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 coulées de boue/glissements de terrain (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 | 1.2 | 0.3 | 1.7 | 0.6 | 2.1 | 0.8 | 7.1 | 1.6 | 2.3 | 0.8 | 4.4 | 1.1 | 2.4 | 0.3 | |
101-200 tiges/ha | 1.7 | 0.4 | 2.2 | 0.6 | 3.7 | 1.0 | 6.7 | 1.5 | 4.5 | 1.1 | 4.6 | 1.2 | 3.1 | 0.3 | |
201-300 tiges/ha | 1.4 | 0.3 | 2.7 | 0.7 | 4.2 | 1.1 | 9.3 | 1.8 | 3.0 | 0.9 | 6.4 | 1.4 | 3.4 | 0.3 | |
301-400 tiges/ha | 0.3 | 0.2 | 1.2 | 0.5 | 1.7 | 0.7 | 1.9 | 0.8 | 1.2 | 0.6 | 2.1 | 0.8 | 1.1 | 0.2 | |
401-500 tiges/ha | 0.1 | 0.1 | 0.4 | 0.3 | 1.2 | 0.6 | 2.1 | 0.9 | 0.6 | 0.4 | 1.2 | 0.6 | 0.6 | 0.1 | |
501-600 tiges/ha | 0.1 | 0.1 | 0.7 | 0.4 | 0.9 | 0.5 | 1.5 | 0.8 | 0.3 | 0.3 | 0.6 | 0.4 | 0.5 | 0.1 | |
>600 tiges/ha | 0.0 | . | 0.2 | 0.2 | 1.2 | 0.6 | 0.0 | . | 0.6 | 0.4 | 0.3 | 0.3 | 0.3 | 0.1 | |
total | 4.8 | 0.6 | 9.1 | 1.3 | 15.1 | 2.0 | 28.7 | 2.8 | 12.5 | 1.8 | 19.8 | 2.2 | 11.5 | 0.6 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 30.7 | 1.2 | 22.1 | 1.8 | 22.0 | 2.3 | 22.1 | 2.5 | 25.0 | 2.3 | 21.6 | 2.2 | 25.7 | 0.8 | |
101-200 tiges/ha | 29.1 | 1.3 | 30.1 | 2.0 | 21.4 | 2.3 | 19.7 | 2.4 | 22.1 | 2.3 | 19.5 | 2.2 | 25.7 | 0.8 | |
201-300 tiges/ha | 19.5 | 1.1 | 16.6 | 1.6 | 16.9 | 2.1 | 15.3 | 2.2 | 22.6 | 2.3 | 18.1 | 2.1 | 18.5 | 0.7 | |
301-400 tiges/ha | 10.0 | 0.9 | 11.4 | 1.3 | 13.5 | 1.8 | 6.4 | 1.5 | 11.0 | 1.7 | 12.2 | 1.8 | 10.7 | 0.6 | |
401-500 tiges/ha | 3.7 | 0.5 | 5.6 | 1.0 | 5.6 | 1.3 | 5.2 | 1.4 | 4.8 | 1.2 | 5.1 | 1.2 | 4.7 | 0.4 | |
501-600 tiges/ha | 1.7 | 0.4 | 3.1 | 0.8 | 2.4 | 0.9 | 1.5 | 0.8 | 1.5 | 0.7 | 2.7 | 0.9 | 2.1 | 0.3 | |
>600 tiges/ha | 0.4 | 0.2 | 2.0 | 0.6 | 3.1 | 0.9 | 1.2 | 0.7 | 0.6 | 0.4 | 0.9 | 0.5 | 1.1 | 0.2 | |
total | 95.2 | 0.6 | 90.9 | 1.3 | 84.9 | 2.0 | 71.3 | 2.8 | 87.5 | 1.8 | 80.2 | 2.2 | 88.5 | 0.6 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 31.9 | 1.3 | 23.8 | 1.8 | 24.1 | 2.3 | 29.2 | 2.7 | 27.3 | 2.4 | 26.0 | 2.3 | 28.1 | 0.8 | |
101-200 tiges/ha | 30.8 | 1.3 | 32.3 | 2.1 | 25.1 | 2.4 | 26.4 | 2.7 | 26.6 | 2.4 | 24.1 | 2.4 | 28.8 | 0.8 | |
201-300 tiges/ha | 20.9 | 1.2 | 19.3 | 1.7 | 21.1 | 2.2 | 24.6 | 2.6 | 25.6 | 2.4 | 24.6 | 2.4 | 21.9 | 0.8 | |
301-400 tiges/ha | 10.4 | 0.9 | 12.6 | 1.4 | 15.2 | 1.9 | 8.3 | 1.6 | 12.2 | 1.8 | 14.3 | 1.9 | 11.8 | 0.6 | |
401-500 tiges/ha | 3.8 | 0.6 | 6.0 | 1.0 | 6.8 | 1.4 | 7.3 | 1.6 | 5.4 | 1.2 | 6.4 | 1.4 | 5.3 | 0.4 | |
501-600 tiges/ha | 1.8 | 0.4 | 3.9 | 0.8 | 3.3 | 1.0 | 3.1 | 1.1 | 1.8 | 0.7 | 3.3 | 1.0 | 2.6 | 0.3 | |
>600 tiges/ha | 0.4 | 0.2 | 2.1 | 0.6 | 4.3 | 1.1 | 1.2 | 0.7 | 1.2 | 0.6 | 1.2 | 0.6 | 1.4 | 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. 1202042. Birmensdorf, Swiss Federal Research Institute WSL