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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 chutes de pierres ou de blocs (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 | 1.8 | 45 | 3.2 | 33 | 2.1 | 41 | 5.3 | 26 | 1.4 | 50 | 9.6 | 19 | 23.4 | 12 | |
101-200 tiges/ha | 1.0 | 58 | 2.5 | 38 | 3.8 | 30 | 2.1 | 41 | 1.4 | 50 | 1.9 | 44 | 12.8 | 16 | |
201-300 tiges/ha | 0.0 | . | 0.7 | 71 | 1.0 | 58 | 0.0 | . | 0.0 | . | 0.0 | . | 1.7 | 45 | |
301-400 tiges/ha | 0.3 | 100 | 0.3 | 100 | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 1.0 | 58 | |
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 | 3.2 | 33 | 6.7 | 23 | 7.2 | 22 | 7.4 | 22 | 2.8 | 35 | 11.4 | 17 | 38.8 | 9 | |
à l'extérieur | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 219.3 | 3 | 103.4 | 5 | 51.7 | 8 | 55.4 | 7 | 66.8 | 7 | 76.3 | 5 | 572.9 | 2 | |
101-200 tiges/ha | 144.9 | 4 | 49.2 | 8 | 35.4 | 9 | 25.4 | 11 | 37.7 | 9 | 26.0 | 10 | 318.8 | 3 | |
201-300 tiges/ha | 38.4 | 9 | 23.0 | 12 | 20.0 | 12 | 6.0 | 23 | 9.8 | 19 | 5.8 | 24 | 103.1 | 5 | |
301-400 tiges/ha | 3.8 | 30 | 2.7 | 36 | 2.4 | 38 | 0.7 | 71 | 1.8 | 45 | 0.7 | 71 | 12.1 | 17 | |
401-500 tiges/ha | 0.0 | . | 1.0 | 58 | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.4 | 100 | 1.7 | 45 | |
501-600 tiges/ha | 0.3 | 100 | 0.0 | . | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 71 | |
>600 tiges/ha | 0.3 | 100 | 0.0 | . | 0.3 | 100 | 0.4 | 100 | 0.4 | 100 | 0.0 | . | 1.4 | 50 | |
total | 407.1 | 1 | 179.4 | 3 | 110.5 | 5 | 88.0 | 6 | 116.4 | 5 | 109.3 | 3 | 1010.7 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 221.2 | 3 | 106.6 | 5 | 53.7 | 8 | 60.7 | 7 | 68.2 | 7 | 85.9 | 4 | 596.3 | 2 | |
101-200 tiges/ha | 146.0 | 4 | 51.7 | 8 | 39.3 | 9 | 27.6 | 11 | 39.1 | 9 | 27.9 | 10 | 331.5 | 3 | |
201-300 tiges/ha | 38.4 | 9 | 23.7 | 12 | 21.0 | 12 | 6.0 | 23 | 9.8 | 19 | 5.8 | 24 | 104.7 | 5 | |
301-400 tiges/ha | 4.1 | 29 | 3.0 | 33 | 2.7 | 35 | 0.7 | 71 | 1.8 | 45 | 0.7 | 71 | 13.1 | 16 | |
401-500 tiges/ha | 0.0 | . | 1.0 | 58 | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.4 | 100 | 1.7 | 45 | |
501-600 tiges/ha | 0.3 | 100 | 0.0 | . | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 71 | |
>600 tiges/ha | 0.3 | 100 | 0.0 | . | 0.3 | 100 | 0.4 | 100 | 0.4 | 100 | 0.0 | . | 1.4 | 50 | |
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. 1249912. Birmensdorf, Swiss Federal Research Institute WSL