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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 ≥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 | . | 3.1 | 26 | 1.4 | 38 | 1.4 | 38 | 1.0 | 45 | 0.8 | 50 | 7.7 | 16 | |
101-200 tiges/ha | 0.2 | 100 | 2.5 | 28 | 1.7 | 33 | 2.6 | 28 | 3.4 | 24 | 3.1 | 25 | 13.5 | 12 | |
201-300 tiges/ha | 0.4 | 70 | 2.8 | 27 | 1.9 | 31 | 5.1 | 19 | 4.3 | 21 | 2.0 | 32 | 16.6 | 11 | |
301-400 tiges/ha | 0.8 | 50 | 2.3 | 29 | 1.6 | 35 | 4.3 | 21 | 3.0 | 26 | 2.9 | 26 | 14.9 | 11 | |
401-500 tiges/ha | 0.6 | 58 | 2.9 | 26 | 1.8 | 33 | 3.0 | 26 | 2.2 | 30 | 1.2 | 41 | 11.7 | 13 | |
501-600 tiges/ha | 0.8 | 50 | 3.3 | 24 | 1.5 | 35 | 2.3 | 29 | 1.8 | 33 | 1.8 | 33 | 11.5 | 13 | |
>600 tiges/ha | 1.6 | 35 | 4.7 | 20 | 3.7 | 23 | 6.1 | 18 | 3.7 | 23 | 2.5 | 27 | 22.3 | 9 | |
total | 4.5 | 21 | 21.5 | 9 | 13.7 | 12 | 24.8 | 9 | 19.5 | 10 | 14.2 | 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 | 47.9 | 6 | 24.5 | 9 | 15.1 | 11 | 15.3 | 11 | 19.7 | 10 | 22.2 | 9 | 144.7 | 3 | |
101-200 tiges/ha | 58.4 | 5 | 24.4 | 9 | 11.5 | 13 | 14.8 | 11 | 19.3 | 10 | 15.8 | 11 | 144.1 | 4 | |
201-300 tiges/ha | 69.6 | 5 | 25.3 | 9 | 18.4 | 10 | 11.1 | 13 | 18.5 | 10 | 20.2 | 9 | 163.1 | 3 | |
301-400 tiges/ha | 66.5 | 5 | 29.1 | 8 | 18.4 | 10 | 11.1 | 13 | 20.7 | 10 | 19.0 | 10 | 164.8 | 3 | |
401-500 tiges/ha | 56.4 | 6 | 20.6 | 10 | 13.9 | 12 | 9.1 | 15 | 13.5 | 12 | 13.9 | 11 | 127.3 | 4 | |
501-600 tiges/ha | 38.0 | 7 | 15.5 | 11 | 12.1 | 13 | 8.7 | 15 | 9.7 | 14 | 11.5 | 13 | 95.5 | 4 | |
>600 tiges/ha | 86.2 | 4 | 42.0 | 7 | 29.5 | 8 | 20.5 | 10 | 25.0 | 9 | 36.9 | 6 | 240.0 | 3 | |
total | 422.9 | 1 | 181.4 | 3 | 118.8 | 4 | 90.7 | 4 | 126.3 | 3 | 139.4 | 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 | 47.9 | 6 | 27.6 | 8 | 16.5 | 11 | 16.7 | 11 | 20.7 | 10 | 22.9 | 9 | 152.4 | 3 | |
101-200 tiges/ha | 58.5 | 5 | 26.9 | 8 | 13.3 | 12 | 17.4 | 11 | 22.7 | 9 | 18.8 | 10 | 157.7 | 3 | |
201-300 tiges/ha | 70.1 | 5 | 28.1 | 8 | 20.3 | 10 | 16.3 | 11 | 22.8 | 9 | 22.1 | 9 | 179.7 | 3 | |
301-400 tiges/ha | 67.3 | 5 | 31.4 | 8 | 20.0 | 10 | 15.4 | 11 | 23.7 | 9 | 22.0 | 9 | 179.7 | 3 | |
401-500 tiges/ha | 57.0 | 5 | 23.5 | 9 | 15.7 | 11 | 12.1 | 13 | 15.7 | 11 | 15.1 | 11 | 139.0 | 4 | |
501-600 tiges/ha | 38.8 | 7 | 18.8 | 10 | 13.6 | 12 | 11.1 | 13 | 11.5 | 13 | 13.3 | 12 | 107.0 | 4 | |
>600 tiges/ha | 87.9 | 4 | 46.6 | 6 | 33.2 | 8 | 26.6 | 8 | 28.7 | 8 | 39.4 | 6 | 262.4 | 2 | |
total | 427.4 | 1 | 203.0 | 2 | 132.5 | 3 | 115.5 | 4 | 145.8 | 3 | 153.7 | 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. 1309518. Birmensdorf, Swiss Federal Research Institute WSL