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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 ≥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 | . | 4.5 | 28 | 2.5 | 38 | 5.0 | 27 | 5.3 | 26 | 3.5 | 31 | 20.7 | 13 | |
101-200 tiges/ha | 1.8 | 45 | 6.3 | 24 | 3.4 | 32 | 5.7 | 25 | 4.3 | 29 | 4.3 | 29 | 25.8 | 12 | |
201-300 tiges/ha | 1.5 | 50 | 3.8 | 30 | 2.5 | 38 | 8.8 | 20 | 5.7 | 25 | 3.9 | 30 | 26.2 | 11 | |
301-400 tiges/ha | 0.4 | 100 | 2.6 | 35 | 2.7 | 35 | 2.7 | 35 | 1.8 | 45 | 1.4 | 50 | 11.6 | 17 | |
401-500 tiges/ha | 1.0 | 58 | 2.0 | 41 | 1.3 | 50 | 2.4 | 38 | 1.1 | 58 | 0.7 | 70 | 8.6 | 20 | |
501-600 tiges/ha | 0.0 | . | 1.3 | 50 | 1.0 | 58 | 0.4 | 100 | 0.7 | 71 | 1.1 | 58 | 4.5 | 28 | |
>600 tiges/ha | 0.0 | . | 1.4 | 50 | 0.7 | 71 | 1.1 | 58 | 0.0 | . | 0.0 | . | 3.2 | 33 | |
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 | 139.5 | 4 | 53.8 | 8 | 37.5 | 10 | 42.9 | 9 | 47.5 | 8 | 53.1 | 7 | 374.3 | 3 | |
101-200 tiges/ha | 127.9 | 4 | 57.3 | 7 | 28.9 | 11 | 23.0 | 12 | 32.8 | 10 | 31.7 | 10 | 301.7 | 3 | |
201-300 tiges/ha | 86.4 | 6 | 34.2 | 10 | 25.1 | 12 | 16.8 | 14 | 29.8 | 11 | 29.6 | 10 | 221.8 | 4 | |
301-400 tiges/ha | 42.6 | 9 | 23.9 | 12 | 18.4 | 13 | 6.3 | 23 | 14.5 | 15 | 17.2 | 14 | 122.9 | 5 | |
401-500 tiges/ha | 15.1 | 15 | 10.2 | 18 | 6.7 | 23 | 4.9 | 27 | 6.1 | 24 | 7.0 | 22 | 49.9 | 8 | |
501-600 tiges/ha | 7.6 | 21 | 5.9 | 24 | 3.6 | 32 | 2.6 | 38 | 2.5 | 38 | 3.6 | 31 | 25.8 | 12 | |
>600 tiges/ha | 1.7 | 45 | 4.0 | 29 | 4.6 | 27 | 0.7 | 71 | 1.8 | 45 | 1.5 | 50 | 14.4 | 15 | |
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 | 139.5 | 4 | 58.3 | 7 | 40.0 | 9 | 47.9 | 8 | 52.8 | 8 | 56.6 | 7 | 395.0 | 2 | |
101-200 tiges/ha | 129.7 | 4 | 63.6 | 7 | 32.3 | 10 | 28.7 | 11 | 37.0 | 9 | 36.0 | 9 | 327.5 | 3 | |
201-300 tiges/ha | 87.8 | 6 | 37.9 | 9 | 27.7 | 11 | 25.6 | 11 | 35.5 | 10 | 33.5 | 9 | 248.0 | 3 | |
301-400 tiges/ha | 43.0 | 9 | 26.5 | 11 | 21.1 | 12 | 9.0 | 19 | 16.3 | 14 | 18.7 | 13 | 134.6 | 5 | |
401-500 tiges/ha | 16.1 | 14 | 12.2 | 16 | 8.0 | 21 | 7.4 | 22 | 7.1 | 22 | 7.7 | 21 | 58.5 | 8 | |
501-600 tiges/ha | 7.6 | 21 | 7.2 | 22 | 4.6 | 28 | 2.9 | 35 | 3.2 | 33 | 4.7 | 27 | 30.3 | 11 | |
>600 tiges/ha | 1.7 | 45 | 5.4 | 25 | 5.4 | 25 | 1.8 | 45 | 1.8 | 45 | 1.5 | 50 | 17.6 | 14 | |
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. 1333638. Birmensdorf, Swiss Federal Research Institute WSL