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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 | 11.0 | 18 | 6.0 | 24 | 12.0 | 17 | 9.2 | 19 | 7.0 | 22 | 46.7 | 8 | |
101-200 tiges/ha | 2.9 | 35 | 7.1 | 22 | 5.2 | 26 | 10.3 | 18 | 7.6 | 22 | 6.1 | 24 | 39.2 | 9 | |
201-300 tiges/ha | 0.3 | 100 | 2.3 | 38 | 1.3 | 50 | 2.0 | 41 | 2.1 | 41 | 1.4 | 49 | 9.5 | 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 | 4.7 | 27 | 21.8 | 12 | 14.2 | 15 | 26.1 | 11 | 18.9 | 13 | 14.9 | 15 | 100.6 | 5 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 256.1 | 2 | 107.1 | 5 | 62.9 | 7 | 70.7 | 7 | 82.6 | 6 | 108.9 | 4 | 688.3 | 2 | |
101-200 tiges/ha | 134.8 | 4 | 59.6 | 7 | 39.5 | 9 | 21.6 | 12 | 39.6 | 9 | 28.0 | 10 | 323.1 | 3 | |
201-300 tiges/ha | 24.5 | 11 | 17.7 | 13 | 17.5 | 14 | 4.1 | 29 | 11.3 | 17 | 5.9 | 24 | 81.0 | 6 | |
301-400 tiges/ha | 4.4 | 27 | 3.6 | 30 | 3.6 | 30 | 0.7 | 71 | 1.4 | 50 | 0.7 | 71 | 14.4 | 15 | |
401-500 tiges/ha | 1.1 | 58 | 1.4 | 50 | 0.9 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 3.4 | 32 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 100 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 100 | 0.4 | 100 | |
total | 420.8 | 1 | 189.4 | 3 | 124.8 | 5 | 97.1 | 5 | 134.9 | 4 | 143.9 | 3 | 1110.9 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 257.5 | 2 | 118.1 | 5 | 68.9 | 7 | 82.8 | 6 | 91.8 | 6 | 115.9 | 4 | 735.0 | 1 | |
101-200 tiges/ha | 137.7 | 4 | 66.7 | 7 | 44.7 | 8 | 31.9 | 10 | 47.2 | 8 | 34.1 | 9 | 362.3 | 2 | |
201-300 tiges/ha | 24.8 | 11 | 20.0 | 13 | 18.9 | 13 | 6.1 | 23 | 13.4 | 16 | 7.3 | 22 | 90.5 | 6 | |
301-400 tiges/ha | 4.4 | 27 | 4.3 | 28 | 5.3 | 25 | 2.1 | 41 | 1.4 | 50 | 1.1 | 58 | 18.6 | 13 | |
401-500 tiges/ha | 1.1 | 58 | 2.0 | 41 | 0.9 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 4.0 | 29 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 100 | |
>600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 100 | 0.0 | . | 0.4 | 100 | 0.7 | 71 | |
total | 425.4 | 1 | 211.2 | 3 | 139.1 | 4 | 123.2 | 5 | 153.8 | 4 | 158.8 | 2 | 1211.5 | 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. 1287736. Birmensdorf, Swiss Federal Research Institute WSL