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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 ≥36 cm; vifs sur pied; par classes) | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% | 1000 ha | ±% |
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 | 1.0 | 58 | 0.8 | 71 | 5.9 | 24 | 5.0 | 27 | 2.5 | 38 | 12.0 | 17 | 27.3 | 11 | |
101-200 tiges/ha | 1.0 | 57 | 0.0 | . | 5.9 | 24 | 2.5 | 38 | 2.1 | 41 | 2.2 | 40 | 13.8 | 16 | |
201-300 tiges/ha | 0.4 | 100 | 0.0 | . | 1.0 | 58 | 0.3 | 100 | 0.4 | 100 | 0.0 | . | 2.1 | 41 | |
301-400 tiges/ha | 0.3 | 100 | 0.0 | . | 1.0 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 1.3 | 50 | |
401-500 tiges/ha | 0.0 | . | 0.0 | . | 0.3 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 100 | |
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 | 2.8 | 35 | 0.8 | 71 | 14.2 | 15 | 7.8 | 21 | 5.0 | 27 | 14.2 | 15 | 44.8 | 9 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 107.1 | 4 | 154.2 | 3 | 167.2 | 4 | 61.4 | 7 | 86.4 | 6 | 102.2 | 4 | 678.6 | 2 | |
101-200 tiges/ha | 65.0 | 6 | 82.5 | 5 | 92.6 | 5 | 25.6 | 11 | 45.3 | 8 | 33.6 | 9 | 344.6 | 3 | |
201-300 tiges/ha | 11.4 | 17 | 14.7 | 15 | 34.9 | 9 | 5.4 | 25 | 13.4 | 16 | 7.3 | 22 | 87.1 | 6 | |
301-400 tiges/ha | 1.4 | 50 | 3.3 | 31 | 8.0 | 20 | 1.7 | 45 | 1.4 | 50 | 1.1 | 58 | 16.9 | 14 | |
401-500 tiges/ha | 0.4 | 100 | 0.7 | 71 | 2.6 | 35 | 0.0 | . | 0.0 | . | 0.0 | . | 3.7 | 30 | |
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 | . | 0.4 | 100 | 0.0 | . | 0.4 | 100 | 0.7 | 71 | |
total | 185.2 | 2 | 255.4 | 2 | 305.3 | 2 | 94.6 | 5 | 146.5 | 4 | 144.6 | 3 | 1131.7 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 108.1 | 4 | 155.0 | 3 | 173.2 | 4 | 66.5 | 7 | 88.9 | 6 | 114.2 | 4 | 705.9 | 2 | |
101-200 tiges/ha | 66.0 | 6 | 82.5 | 5 | 98.5 | 5 | 28.1 | 11 | 47.5 | 8 | 35.9 | 9 | 358.4 | 3 | |
201-300 tiges/ha | 11.8 | 17 | 14.7 | 15 | 35.9 | 9 | 5.7 | 24 | 13.7 | 16 | 7.3 | 22 | 89.2 | 6 | |
301-400 tiges/ha | 1.7 | 45 | 3.3 | 31 | 9.0 | 19 | 1.7 | 45 | 1.4 | 50 | 1.1 | 58 | 18.3 | 13 | |
401-500 tiges/ha | 0.4 | 100 | 0.7 | 71 | 2.9 | 33 | 0.0 | . | 0.0 | . | 0.0 | . | 4.0 | 29 | |
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 | . | 0.4 | 100 | 0.0 | . | 0.4 | 100 | 0.7 | 71 | |
total | 188.0 | 2 | 256.2 | 2 | 319.5 | 2 | 102.4 | 5 | 151.5 | 4 | 158.8 | 2 | 1176.4 | 1 |
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. 1250123. Birmensdorf, Swiss Federal Research Institute WSL