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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 ≥12 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 | . | 4.1 | 22 | 1.2 | 41 | 1.4 | 38 | 1.0 | 45 | 7.7 | 16 | |
101-200 tiges/ha | 0.2 | 100 | 0.0 | . | 4.2 | 21 | 2.6 | 28 | 3.4 | 24 | 3.1 | 25 | 13.5 | 12 | |
201-300 tiges/ha | 0.4 | 70 | 0.0 | . | 4.5 | 21 | 4.7 | 20 | 4.3 | 21 | 2.6 | 28 | 16.6 | 11 | |
301-400 tiges/ha | 0.8 | 50 | 0.2 | 100 | 3.5 | 24 | 3.9 | 22 | 3.4 | 24 | 3.1 | 25 | 14.9 | 11 | |
401-500 tiges/ha | 0.6 | 58 | 0.0 | . | 4.7 | 20 | 2.7 | 27 | 2.2 | 30 | 1.4 | 38 | 11.7 | 13 | |
501-600 tiges/ha | 0.8 | 50 | 0.0 | . | 5.2 | 19 | 1.9 | 32 | 1.6 | 35 | 2.0 | 31 | 11.5 | 13 | |
>600 tiges/ha | 1.6 | 35 | 0.0 | . | 8.8 | 15 | 5.5 | 19 | 3.5 | 23 | 2.9 | 26 | 22.3 | 9 | |
total | 4.5 | 21 | 0.2 | 100 | 35.0 | 7 | 22.7 | 9 | 19.9 | 10 | 16.0 | 11 | 98.3 | 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 | 15.7 | 10 | 33.9 | 7 | 38.9 | 7 | 12.3 | 13 | 20.5 | 10 | 23.4 | 9 | 144.7 | 3 | |
101-200 tiges/ha | 26.8 | 8 | 33.6 | 7 | 35.6 | 7 | 12.0 | 13 | 19.3 | 10 | 17.0 | 10 | 144.1 | 4 | |
201-300 tiges/ha | 30.7 | 8 | 43.0 | 6 | 40.8 | 7 | 9.4 | 14 | 18.1 | 10 | 21.2 | 9 | 163.1 | 3 | |
301-400 tiges/ha | 28.2 | 8 | 43.8 | 6 | 42.0 | 7 | 10.7 | 13 | 20.7 | 10 | 19.4 | 10 | 164.8 | 3 | |
401-500 tiges/ha | 26.4 | 8 | 33.2 | 7 | 31.4 | 8 | 7.7 | 16 | 14.0 | 12 | 14.5 | 11 | 127.3 | 4 | |
501-600 tiges/ha | 19.8 | 9 | 21.8 | 9 | 24.1 | 9 | 7.3 | 16 | 10.1 | 14 | 12.3 | 12 | 95.5 | 4 | |
>600 tiges/ha | 40.3 | 6 | 49.7 | 6 | 69.2 | 5 | 17.6 | 10 | 25.7 | 9 | 37.5 | 6 | 240.0 | 3 | |
total | 188.0 | 2 | 258.9 | 1 | 282.0 | 2 | 77.0 | 5 | 128.5 | 3 | 145.2 | 2 | 1079.6 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 15.7 | 10 | 33.9 | 7 | 43.0 | 6 | 13.5 | 12 | 22.0 | 9 | 24.4 | 8 | 152.4 | 3 | |
101-200 tiges/ha | 27.0 | 8 | 33.6 | 7 | 39.8 | 7 | 14.6 | 12 | 22.7 | 9 | 20.1 | 10 | 157.7 | 3 | |
201-300 tiges/ha | 31.2 | 7 | 43.0 | 6 | 45.3 | 6 | 14.1 | 12 | 22.4 | 9 | 23.7 | 9 | 179.7 | 3 | |
301-400 tiges/ha | 29.1 | 8 | 44.0 | 6 | 45.5 | 6 | 14.6 | 11 | 24.1 | 9 | 22.5 | 9 | 179.7 | 3 | |
401-500 tiges/ha | 27.0 | 8 | 33.2 | 7 | 36.2 | 7 | 10.5 | 14 | 16.2 | 11 | 15.9 | 11 | 139.0 | 4 | |
501-600 tiges/ha | 20.7 | 9 | 21.8 | 9 | 29.3 | 8 | 9.3 | 14 | 11.7 | 13 | 14.3 | 11 | 107.0 | 4 | |
>600 tiges/ha | 42.0 | 6 | 49.7 | 6 | 78.0 | 5 | 23.1 | 9 | 29.3 | 8 | 40.4 | 6 | 262.4 | 2 | |
total | 192.5 | 2 | 259.1 | 1 | 317.0 | 2 | 99.6 | 4 | 148.4 | 3 | 161.2 | 2 | 1177.9 | 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. 1309527. Birmensdorf, Swiss Federal Research Institute WSL