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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 | 0.7 | 71 | 3.5 | 32 | 2.9 | 35 | 6.4 | 23 | 3.9 | 30 | 3.5 | 31 | 20.9 | 13 | |
101-200 tiges/ha | 1.1 | 58 | 4.4 | 28 | 3.9 | 30 | 6.4 | 23 | 5.3 | 26 | 5.3 | 25 | 26.3 | 11 | |
201-300 tiges/ha | 1.4 | 50 | 4.1 | 29 | 1.0 | 58 | 5.9 | 24 | 2.9 | 35 | 2.6 | 37 | 18.0 | 14 | |
301-400 tiges/ha | 1.1 | 58 | 2.7 | 35 | 1.9 | 41 | 2.7 | 35 | 2.5 | 38 | 1.1 | 58 | 12.0 | 17 | |
401-500 tiges/ha | 0.0 | . | 3.1 | 33 | 1.3 | 50 | 1.4 | 50 | 1.1 | 58 | 0.4 | 100 | 7.3 | 22 | |
501-600 tiges/ha | 0.0 | . | 1.0 | 58 | 1.3 | 50 | 0.7 | 71 | 0.0 | . | 0.4 | 100 | 3.4 | 32 | |
>600 tiges/ha | 0.0 | . | 1.1 | 58 | 0.7 | 71 | 0.7 | 71 | 0.0 | . | 0.4 | 100 | 2.9 | 35 | |
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 | 89.3 | 5 | 38.6 | 9 | 24.6 | 12 | 28.5 | 11 | 31.2 | 10 | 51.3 | 7 | 263.5 | 3 | |
101-200 tiges/ha | 104.3 | 5 | 41.3 | 9 | 23.6 | 12 | 19.2 | 13 | 31.8 | 10 | 23.1 | 12 | 243.2 | 3 | |
201-300 tiges/ha | 104.2 | 5 | 42.7 | 9 | 23.5 | 12 | 11.4 | 17 | 19.9 | 13 | 18.7 | 13 | 220.4 | 4 | |
301-400 tiges/ha | 63.1 | 7 | 22.9 | 12 | 14.4 | 15 | 7.8 | 21 | 11.6 | 17 | 8.5 | 20 | 128.2 | 5 | |
401-500 tiges/ha | 30.7 | 10 | 10.2 | 18 | 9.2 | 19 | 2.8 | 35 | 4.9 | 27 | 4.5 | 28 | 62.4 | 7 | |
501-600 tiges/ha | 8.0 | 21 | 4.4 | 28 | 2.8 | 35 | 1.1 | 58 | 2.8 | 35 | 1.1 | 58 | 20.3 | 13 | |
>600 tiges/ha | 6.4 | 23 | 6.1 | 24 | 6.5 | 23 | 0.3 | 100 | 1.4 | 50 | 0.0 | . | 20.6 | 13 | |
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 | 90.0 | 5 | 42.1 | 9 | 27.5 | 11 | 34.9 | 10 | 35.1 | 10 | 54.8 | 7 | 284.5 | 3 | |
101-200 tiges/ha | 105.4 | 5 | 45.6 | 8 | 27.4 | 11 | 25.5 | 11 | 37.1 | 9 | 28.4 | 10 | 269.6 | 3 | |
201-300 tiges/ha | 105.6 | 5 | 46.9 | 8 | 24.5 | 11 | 17.3 | 14 | 22.8 | 12 | 21.2 | 12 | 238.4 | 3 | |
301-400 tiges/ha | 64.2 | 7 | 25.5 | 11 | 16.4 | 14 | 10.5 | 18 | 14.1 | 16 | 9.5 | 19 | 140.2 | 5 | |
401-500 tiges/ha | 30.7 | 10 | 13.3 | 16 | 10.5 | 18 | 4.3 | 29 | 6.0 | 24 | 4.9 | 27 | 69.6 | 7 | |
501-600 tiges/ha | 8.0 | 21 | 5.4 | 25 | 4.2 | 29 | 1.8 | 45 | 2.8 | 35 | 1.5 | 50 | 23.7 | 12 | |
>600 tiges/ha | 6.4 | 23 | 7.1 | 22 | 7.2 | 22 | 1.0 | 58 | 1.4 | 50 | 0.4 | 100 | 23.5 | 12 | |
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. 1335532. Birmensdorf, Swiss Federal Research Institute WSL