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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 chutes de pierres ou de blocs (2022) | nombre de tiges/ha (DHP ≥36 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 | 47.5 | 12.1 | 58.6 | 9.1 | 37.4 | 7.9 | 69.0 | 6.9 | 47.9 | 10.9 | 81.4 | 5.3 | 61.1 | 3.4 | |
101-200 tiges/ha | 40.6 | 11.9 | 27.5 | 8.3 | 42.5 | 8.0 | 22.1 | 6.2 | 42.4 | 10.8 | 16.8 | 5.1 | 28.8 | 3.2 | |
201-300 tiges/ha | 5.9 | 5.8 | 7.1 | 4.9 | 17.6 | 6.0 | 6.7 | 3.7 | 4.8 | 4.7 | 1.7 | 1.7 | 7.2 | 1.8 | |
301-400 tiges/ha | 5.9 | 5.8 | 3.3 | 3.2 | 2.5 | 2.5 | 2.2 | 2.2 | 0.0 | . | 0.0 | . | 1.9 | 0.9 | |
401-500 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 4.8 | 4.7 | 0.0 | . | 0.5 | 0.5 | |
501-600 tiges/ha | 0.0 | . | 3.5 | 3.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.5 | 0.5 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 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 | . | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 54.6 | 0.9 | 54.5 | 1.5 | 50.3 | 1.9 | 67.6 | 2.0 | 64.3 | 1.7 | 75.7 | 1.5 | 59.2 | 0.6 | |
101-200 tiges/ha | 35.0 | 1.0 | 30.8 | 1.4 | 32.2 | 1.9 | 24.7 | 1.8 | 26.9 | 1.6 | 19.7 | 1.4 | 30.1 | 0.6 | |
201-300 tiges/ha | 8.6 | 0.6 | 11.3 | 1.0 | 13.3 | 1.3 | 6.8 | 1.1 | 7.6 | 1.0 | 3.9 | 0.7 | 8.7 | 0.4 | |
301-400 tiges/ha | 1.3 | 0.2 | 2.7 | 0.5 | 3.3 | 0.7 | 0.7 | 0.4 | 1.0 | 0.4 | 0.6 | 0.3 | 1.6 | 0.2 | |
401-500 tiges/ha | 0.3 | 0.1 | 0.5 | 0.2 | 0.5 | 0.3 | 0.0 | . | 0.0 | . | 0.1 | 0.1 | 0.3 | 0.1 | |
501-600 tiges/ha | 0.0 | 0.0 | 0.1 | 0.1 | 0.2 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.1 | 0.0 | |
>600 tiges/ha | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | . | 0.1 | 0.0 | |
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 | 54.6 | 0.9 | 54.7 | 1.5 | 49.6 | 1.9 | 67.7 | 1.9 | 63.9 | 1.7 | 76.1 | 1.4 | 59.3 | 0.6 | |
101-200 tiges/ha | 35.0 | 1.0 | 30.7 | 1.4 | 32.8 | 1.8 | 24.5 | 1.7 | 27.4 | 1.6 | 19.5 | 1.4 | 30.0 | 0.6 | |
201-300 tiges/ha | 8.6 | 0.6 | 11.2 | 1.0 | 13.5 | 1.3 | 6.8 | 1.0 | 7.6 | 1.0 | 3.7 | 0.7 | 8.7 | 0.4 | |
301-400 tiges/ha | 1.3 | 0.2 | 2.7 | 0.5 | 3.3 | 0.7 | 0.9 | 0.4 | 0.9 | 0.4 | 0.5 | 0.3 | 1.6 | 0.2 | |
401-500 tiges/ha | 0.3 | 0.1 | 0.5 | 0.2 | 0.5 | 0.3 | 0.0 | . | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.1 | |
501-600 tiges/ha | 0.0 | 0.0 | 0.2 | 0.1 | 0.2 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.1 | 0.0 | |
>600 tiges/ha | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | . | 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. 1249133. Birmensdorf, Swiss Federal Research Institute WSL