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région économique | |||||||||||||||||||||||||||||||
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Ouest du Jura | Est du Jura | Ouest du Plateau | Centre du Plateau | Est du Plateau | Ouest des Préalpes | Centre des Préalpes | Est des Préalpes | Nord-ouest des Alpes | Centre des Alpes | Nord-est des Alpes | Sud-ouest des Alpes | Sud-est des Alpes | Sud des Alpes | Suisse | |||||||||||||||||
forêt de protection contre des coulées de boue/glissements de terrain (2022) | surface de la plus grande trouée (5 classes) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . |
pas de trouée (<100 m2) | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
petite trouée (100-500 m2) | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
trouée moyenne (500-1000 m2) | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
grande trouée (1000-5000 m2) | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
très grande trouée (>5000 m2) | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
total | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | |
à l'intérieur | pas d'indication | 2.5 | 2.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 8.3 | 8.0 | 1.2 | 1.2 | 1.7 | 1.7 | 4.7 | 2.3 | 2.0 | 0.7 |
pas de trouée (<100 m2) | 44.7 | 7.9 | 28.4 | 17.0 | 0.0 | . | 48.9 | 20.4 | 21.1 | 18.6 | 47.4 | 16.9 | 15.3 | 9.9 | 34.0 | 9.8 | 29.2 | 8.2 | 22.0 | 9.7 | 22.7 | 11.6 | 14.0 | 3.7 | 20.0 | 5.4 | 38.9 | 5.4 | 27.9 | 2.3 | |
petite trouée (100-500 m2) | 37.5 | 7.7 | 43.0 | 18.7 | 54.1 | 35.1 | 34.8 | 19.6 | 39.8 | 21.9 | 23.4 | 14.5 | 55.5 | 13.5 | 49.3 | 10.3 | 44.5 | 8.9 | 46.7 | 11.5 | 38.7 | 13.6 | 37.6 | 5.3 | 26.6 | 5.9 | 35.7 | 5.4 | 37.8 | 2.5 | |
trouée moyenne (500-1000 m2) | 7.7 | 4.3 | 0.0 | . | 45.9 | 35.1 | 16.3 | 14.9 | 19.1 | 17.3 | 10.8 | 10.2 | 14.6 | 9.7 | 16.7 | 7.7 | 9.9 | 5.4 | 21.1 | 9.4 | 22.3 | 11.5 | 20.6 | 4.4 | 24.9 | 5.8 | 4.9 | 2.4 | 14.9 | 1.8 | |
grande trouée (1000-5000 m2) | 7.7 | 4.3 | 28.7 | 17.2 | 0.0 | . | 0.0 | . | 19.9 | 17.9 | 18.3 | 12.0 | 14.6 | 9.7 | 0.0 | . | 13.0 | 6.1 | 10.2 | 6.9 | 8.0 | 7.7 | 26.6 | 4.8 | 25.2 | 5.8 | 15.9 | 4.1 | 16.9 | 1.9 | |
très grande trouée (>5000 m2) | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 3.3 | 3.2 | 0.0 | . | 0.0 | . | 0.0 | . | 1.6 | 1.5 | 0.0 | . | 0.5 | 0.3 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
à l'extérieur | pas d'indication | 0.5 | 0.4 | 0.0 | . | 0.8 | 0.8 | 0.5 | 0.5 | 0.0 | . | 3.7 | 1.7 | 2.8 | 1.0 | 2.9 | 1.3 | 6.7 | 1.9 | 13.4 | 3.5 | 9.7 | 2.9 | 7.0 | 1.5 | 4.1 | 0.9 | 11.9 | 1.5 | 4.5 | 0.4 |
pas de trouée (<100 m2) | 34.2 | 2.4 | 45.8 | 4.6 | 35.5 | 4.3 | 24.4 | 2.9 | 36.5 | 2.7 | 25.0 | 3.9 | 22.4 | 2.5 | 28.1 | 3.2 | 25.1 | 3.3 | 25.7 | 4.4 | 33.2 | 4.6 | 22.4 | 2.4 | 20.4 | 1.9 | 31.9 | 2.1 | 28.5 | 0.8 | |
petite trouée (100-500 m2) | 44.0 | 2.5 | 39.4 | 4.6 | 38.6 | 4.5 | 49.0 | 3.4 | 49.0 | 2.8 | 33.9 | 4.2 | 40.7 | 3.0 | 42.4 | 3.6 | 37.3 | 3.6 | 25.8 | 4.4 | 30.2 | 4.5 | 28.9 | 2.6 | 27.6 | 2.1 | 28.5 | 2.1 | 36.6 | 0.8 | |
trouée moyenne (500-1000 m2) | 12.8 | 1.7 | 4.4 | 1.9 | 11.1 | 2.9 | 16.3 | 2.5 | 8.4 | 1.6 | 23.5 | 3.8 | 14.3 | 2.1 | 9.5 | 2.1 | 16.6 | 2.8 | 13.3 | 3.5 | 9.8 | 2.8 | 20.2 | 2.3 | 19.0 | 1.8 | 12.3 | 1.5 | 14.2 | 0.6 | |
grande trouée (1000-5000 m2) | 8.5 | 1.4 | 10.4 | 2.9 | 11.3 | 3.0 | 9.8 | 2.0 | 6.2 | 1.4 | 13.8 | 3.1 | 19.3 | 2.3 | 17.1 | 2.7 | 13.7 | 2.6 | 20.7 | 4.1 | 16.3 | 3.6 | 20.5 | 2.3 | 27.6 | 2.1 | 15.1 | 1.6 | 15.6 | 0.6 | |
très grande trouée (>5000 m2) | 0.0 | . | 0.0 | . | 2.6 | 1.5 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 0.4 | 0.0 | . | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 0.6 | 1.3 | 0.5 | 0.4 | 0.3 | 0.5 | 0.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | pas d'indication | 0.7 | 0.4 | 0.0 | . | 0.8 | 0.8 | 0.4 | 0.4 | 0.0 | . | 3.5 | 1.5 | 2.7 | 0.9 | 2.6 | 1.1 | 5.8 | 1.6 | 11.3 | 2.9 | 9.5 | 2.7 | 5.7 | 1.2 | 3.9 | 0.8 | 10.8 | 1.3 | 4.3 | 0.3 |
pas de trouée (<100 m2) | 35.1 | 2.3 | 44.8 | 4.5 | 34.9 | 4.3 | 25.1 | 2.9 | 36.2 | 2.7 | 26.5 | 3.8 | 22.1 | 2.5 | 28.7 | 3.1 | 25.7 | 3.0 | 25.1 | 4.0 | 32.1 | 4.3 | 20.6 | 2.0 | 20.4 | 1.8 | 32.9 | 1.9 | 28.4 | 0.7 | |
petite trouée (100-500 m2) | 43.4 | 2.4 | 39.6 | 4.4 | 38.9 | 4.4 | 48.6 | 3.3 | 48.8 | 2.8 | 33.2 | 4.1 | 41.4 | 2.9 | 43.2 | 3.4 | 38.4 | 3.4 | 29.2 | 4.2 | 31.1 | 4.2 | 30.8 | 2.3 | 27.5 | 2.0 | 29.6 | 2.0 | 36.7 | 0.8 | |
trouée moyenne (500-1000 m2) | 12.3 | 1.6 | 4.2 | 1.8 | 11.7 | 2.9 | 16.3 | 2.5 | 8.6 | 1.6 | 22.6 | 3.7 | 14.3 | 2.0 | 10.3 | 2.1 | 15.6 | 2.5 | 14.6 | 3.3 | 11.1 | 2.8 | 20.3 | 2.0 | 19.7 | 1.8 | 11.2 | 1.3 | 14.3 | 0.6 | |
grande trouée (1000-5000 m2) | 8.5 | 1.3 | 11.5 | 2.9 | 11.1 | 2.9 | 9.5 | 2.0 | 6.4 | 1.4 | 14.1 | 3.0 | 19.1 | 2.3 | 15.2 | 2.5 | 13.6 | 2.4 | 19.0 | 3.6 | 15.4 | 3.3 | 21.8 | 2.1 | 27.3 | 2.0 | 15.2 | 1.5 | 15.8 | 0.6 | |
très grande trouée (>5000 m2) | 0.0 | . | 0.0 | . | 2.5 | 1.4 | 0.0 | . | 0.0 | . | 0.0 | . | 0.4 | 0.4 | 0.0 | . | 0.9 | 0.6 | 0.8 | 0.8 | 0.9 | 0.9 | 0.8 | 0.4 | 1.3 | 0.5 | 0.4 | 0.2 | 0.5 | 0.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . |
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. 1413607. Birmensdorf, Swiss Federal Research Institute WSL