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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 avalanches (2022) | nombre de tiges/ha (DHP ≥24 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 | 0.0 | . | 0.0 | . | 5.9 | 24 | 4.6 | 28 | 5.7 | 25 | 3.8 | 30 | 20.0 | 13 | |
101-200 tiges/ha | 1.8 | 45 | 0.0 | . | 9.0 | 20 | 5.4 | 26 | 4.3 | 29 | 5.0 | 26 | 25.5 | 12 | |
201-300 tiges/ha | 1.5 | 50 | 0.4 | 100 | 7.0 | 22 | 7.4 | 22 | 5.7 | 25 | 4.3 | 28 | 26.2 | 11 | |
301-400 tiges/ha | 0.4 | 100 | 0.0 | . | 5.0 | 26 | 2.7 | 35 | 1.8 | 45 | 1.4 | 50 | 11.3 | 17 | |
401-500 tiges/ha | 0.7 | 70 | 0.0 | . | 3.3 | 32 | 2.4 | 38 | 1.1 | 58 | 0.7 | 70 | 8.2 | 20 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 2.4 | 38 | 0.4 | 100 | 0.7 | 71 | 1.1 | 58 | 4.5 | 28 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 1.7 | 45 | 0.7 | 71 | 0.4 | 100 | 0.0 | . | 2.8 | 35 | |
total | 4.4 | 28 | 0.4 | 100 | 34.3 | 10 | 23.6 | 12 | 19.6 | 13 | 16.3 | 14 | 98.6 | 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 | 52.6 | 7 | 89.0 | 5 | 83.1 | 6 | 30.0 | 10 | 43.9 | 9 | 51.1 | 7 | 349.7 | 3 | |
101-200 tiges/ha | 59.0 | 7 | 75.9 | 6 | 77.6 | 6 | 22.3 | 12 | 33.1 | 10 | 30.7 | 10 | 298.6 | 3 | |
201-300 tiges/ha | 37.7 | 9 | 51.9 | 8 | 53.9 | 8 | 14.1 | 15 | 30.1 | 10 | 31.0 | 10 | 218.7 | 4 | |
301-400 tiges/ha | 19.9 | 13 | 26.5 | 11 | 38.0 | 9 | 5.6 | 25 | 14.4 | 15 | 17.2 | 14 | 121.6 | 5 | |
401-500 tiges/ha | 9.7 | 19 | 6.5 | 23 | 16.9 | 14 | 3.8 | 30 | 5.4 | 26 | 7.4 | 22 | 49.6 | 8 | |
501-600 tiges/ha | 3.9 | 30 | 4.8 | 27 | 7.7 | 21 | 2.2 | 41 | 3.2 | 33 | 3.6 | 31 | 25.4 | 12 | |
>600 tiges/ha | 1.0 | 57 | 1.3 | 50 | 8.0 | 20 | 0.7 | 71 | 1.8 | 45 | 1.5 | 50 | 14.4 | 15 | |
total | 183.7 | 2 | 255.8 | 2 | 285.2 | 3 | 78.8 | 6 | 131.9 | 4 | 142.5 | 3 | 1077.9 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 52.6 | 7 | 89.0 | 5 | 89.0 | 6 | 34.6 | 10 | 49.6 | 8 | 54.9 | 7 | 369.7 | 3 | |
101-200 tiges/ha | 60.8 | 7 | 75.9 | 6 | 86.6 | 6 | 27.6 | 11 | 37.4 | 9 | 35.7 | 9 | 324.0 | 3 | |
201-300 tiges/ha | 39.1 | 9 | 52.3 | 7 | 60.9 | 7 | 21.5 | 12 | 35.8 | 9 | 35.2 | 9 | 244.9 | 3 | |
301-400 tiges/ha | 20.3 | 13 | 26.5 | 11 | 43.0 | 8 | 8.3 | 20 | 16.2 | 14 | 18.7 | 13 | 132.8 | 5 | |
401-500 tiges/ha | 10.4 | 18 | 6.5 | 23 | 20.2 | 13 | 6.3 | 23 | 6.4 | 23 | 8.1 | 21 | 57.8 | 8 | |
501-600 tiges/ha | 3.9 | 30 | 4.8 | 27 | 10.1 | 18 | 2.6 | 38 | 3.9 | 30 | 4.7 | 27 | 29.9 | 11 | |
>600 tiges/ha | 1.0 | 57 | 1.3 | 50 | 9.8 | 18 | 1.4 | 50 | 2.1 | 41 | 1.5 | 50 | 17.2 | 14 | |
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. 1335972. Birmensdorf, Swiss Federal Research Institute WSL