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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 | 2.1 | 31 | 11.5 | 13 | 4.9 | 20 | 12.1 | 13 | 10.6 | 14 | 7.8 | 15 | 48.9 | 6 | |
101-200 tiges/ha | 2.5 | 29 | 6.7 | 17 | 5.5 | 19 | 9.3 | 14 | 6.3 | 18 | 4.8 | 20 | 35.1 | 7 | |
201-300 tiges/ha | 0.0 | . | 3.0 | 26 | 2.7 | 27 | 2.9 | 26 | 2.2 | 30 | 1.0 | 45 | 11.7 | 13 | |
301-400 tiges/ha | 0.0 | . | 0.0 | . | 0.6 | 58 | 0.4 | 71 | 0.2 | 100 | 0.6 | 57 | 1.8 | 33 | |
401-500 tiges/ha | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.4 | 71 | |
501-600 tiges/ha | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
>600 tiges/ha | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.4 | 71 | |
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 | 231.3 | 2 | 99.4 | 4 | 60.8 | 6 | 66.1 | 5 | 82.5 | 4 | 109.2 | 3 | 649.3 | 1 | |
101-200 tiges/ha | 147.2 | 3 | 55.5 | 6 | 38.0 | 7 | 19.1 | 10 | 33.6 | 7 | 25.1 | 8 | 318.4 | 2 | |
201-300 tiges/ha | 36.8 | 7 | 19.7 | 10 | 15.2 | 11 | 4.9 | 20 | 8.9 | 15 | 4.7 | 20 | 90.2 | 4 | |
301-400 tiges/ha | 5.6 | 19 | 5.6 | 19 | 3.8 | 23 | 0.6 | 58 | 1.2 | 41 | 0.2 | 100 | 16.9 | 11 | |
401-500 tiges/ha | 1.4 | 38 | 0.8 | 50 | 0.6 | 58 | 0.0 | . | 0.0 | . | 0.2 | 100 | 3.1 | 26 | |
501-600 tiges/ha | 0.2 | 100 | 0.4 | 71 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.8 | 50 | |
>600 tiges/ha | 0.4 | 71 | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.2 | 100 | 0.0 | . | 0.8 | 50 | |
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 | 233.4 | 2 | 110.9 | 4 | 65.7 | 5 | 78.1 | 5 | 93.1 | 4 | 117.0 | 3 | 698.3 | 1 | |
101-200 tiges/ha | 149.7 | 3 | 62.2 | 5 | 43.5 | 6 | 28.3 | 8 | 39.9 | 7 | 29.9 | 7 | 353.5 | 2 | |
201-300 tiges/ha | 36.8 | 7 | 22.6 | 9 | 17.9 | 10 | 7.8 | 15 | 11.0 | 13 | 5.8 | 18 | 102.0 | 4 | |
301-400 tiges/ha | 5.6 | 19 | 5.6 | 19 | 4.4 | 21 | 1.0 | 45 | 1.4 | 38 | 0.8 | 50 | 18.7 | 10 | |
401-500 tiges/ha | 1.4 | 38 | 1.0 | 45 | 0.6 | 58 | 0.0 | . | 0.2 | 100 | 0.2 | 100 | 3.4 | 24 | |
501-600 tiges/ha | 0.2 | 100 | 0.4 | 71 | 0.2 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.8 | 50 | |
>600 tiges/ha | 0.4 | 71 | 0.2 | 100 | 0.2 | 100 | 0.2 | 100 | 0.2 | 100 | 0.0 | . | 1.1 | 41 | |
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. 1396067. Birmensdorf, Swiss Federal Research Institute WSL