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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 avalanches (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 | 1.5 | 50 | 9.7 | 19 | 5.6 | 25 | 11.0 | 18 | 6.3 | 23 | 6.0 | 24 | 40.1 | 9 | |
101-200 tiges/ha | 2.9 | 35 | 6.8 | 22 | 4.5 | 28 | 9.6 | 19 | 7.2 | 22 | 5.8 | 24 | 36.7 | 9 | |
201-300 tiges/ha | 0.0 | . | 2.0 | 41 | 1.3 | 50 | 2.0 | 41 | 2.1 | 41 | 1.4 | 49 | 8.9 | 19 | |
301-400 tiges/ha | 0.0 | . | 0.7 | 71 | 1.7 | 45 | 1.4 | 50 | 0.0 | . | 0.4 | 100 | 4.2 | 29 | |
401-500 tiges/ha | 0.0 | . | 0.7 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 71 | |
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 | . | 0.0 | . | 0.4 | 100 | |
total | 4.4 | 28 | 19.8 | 13 | 13.1 | 16 | 24.3 | 12 | 15.7 | 15 | 13.6 | 15 | 90.9 | 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 | 245.5 | 2 | 90.7 | 6 | 48.8 | 8 | 46.5 | 8 | 56.3 | 7 | 73.6 | 5 | 561.3 | 2 | |
101-200 tiges/ha | 131.2 | 4 | 55.0 | 7 | 35.7 | 9 | 20.2 | 13 | 36.3 | 9 | 26.5 | 10 | 305.0 | 3 | |
201-300 tiges/ha | 23.8 | 11 | 17.0 | 14 | 16.5 | 14 | 3.7 | 30 | 9.5 | 19 | 5.9 | 24 | 76.4 | 6 | |
301-400 tiges/ha | 4.4 | 27 | 2.9 | 33 | 3.0 | 33 | 0.7 | 71 | 1.4 | 50 | 0.7 | 71 | 13.1 | 16 | |
401-500 tiges/ha | 1.1 | 58 | 0.7 | 71 | 0.6 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 2.3 | 38 | |
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 | . | 0.4 | 100 | 0.4 | 100 | |
total | 406.0 | 1 | 166.2 | 4 | 104.6 | 5 | 71.1 | 6 | 103.6 | 5 | 107.1 | 3 | 958.6 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 246.9 | 2 | 100.3 | 5 | 54.4 | 8 | 57.4 | 7 | 62.7 | 7 | 79.6 | 5 | 601.4 | 2 | |
101-200 tiges/ha | 134.1 | 4 | 61.8 | 7 | 40.2 | 9 | 29.8 | 10 | 43.6 | 8 | 32.3 | 9 | 341.7 | 3 | |
201-300 tiges/ha | 23.8 | 11 | 19.0 | 13 | 17.8 | 13 | 5.7 | 24 | 11.6 | 17 | 7.3 | 22 | 85.3 | 6 | |
301-400 tiges/ha | 4.4 | 27 | 3.6 | 30 | 4.7 | 27 | 2.1 | 41 | 1.4 | 50 | 1.1 | 58 | 17.3 | 14 | |
401-500 tiges/ha | 1.1 | 58 | 1.3 | 50 | 0.6 | 71 | 0.0 | . | 0.0 | . | 0.0 | . | 3.0 | 33 | |
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 | 410.3 | 1 | 186.1 | 3 | 117.8 | 5 | 95.4 | 5 | 119.2 | 5 | 120.7 | 3 | 1049.5 | 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. 1287715. Birmensdorf, Swiss Federal Research Institute WSL