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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 ≥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 | 2.1 | 41 | 2.4 | 38 | 2.5 | 38 | 1.4 | 50 | 5.0 | 26 | 14.2 | 16 | |
101-200 tiges/ha | 0.3 | 100 | 0.7 | 71 | 2.2 | 41 | 1.8 | 45 | 1.4 | 50 | 3.3 | 33 | 9.8 | 19 | |
201-300 tiges/ha | 1.8 | 45 | 2.3 | 38 | 1.3 | 50 | 2.8 | 35 | 1.0 | 58 | 3.4 | 33 | 12.7 | 17 | |
301-400 tiges/ha | 0.3 | 100 | 1.1 | 58 | 1.0 | 58 | 0.4 | 100 | 0.4 | 100 | 0.7 | 71 | 3.9 | 30 | |
401-500 tiges/ha | 0.0 | . | 0.4 | 100 | 0.3 | 100 | 0.7 | 71 | 0.0 | . | 0.8 | 71 | 2.1 | 41 | |
501-600 tiges/ha | 0.0 | . | 0.6 | 70 | 0.7 | 71 | 0.0 | . | 0.4 | 100 | 0.4 | 100 | 2.1 | 41 | |
>600 tiges/ha | 0.0 | . | 0.3 | 100 | 0.4 | 100 | 0.0 | . | 0.0 | . | 0.0 | . | 0.7 | 71 | |
total | 3.2 | 33 | 7.7 | 21 | 8.3 | 20 | 8.2 | 21 | 4.6 | 28 | 13.5 | 16 | 45.5 | 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 | 138.7 | 4 | 56.1 | 7 | 37.6 | 10 | 45.4 | 8 | 51.4 | 8 | 51.6 | 7 | 380.9 | 3 | |
101-200 tiges/ha | 129.4 | 4 | 62.9 | 7 | 30.2 | 11 | 26.9 | 11 | 35.6 | 10 | 32.7 | 10 | 317.7 | 3 | |
201-300 tiges/ha | 86.1 | 6 | 35.6 | 10 | 26.3 | 11 | 22.8 | 12 | 34.5 | 10 | 30.2 | 10 | 235.4 | 3 | |
301-400 tiges/ha | 42.7 | 9 | 25.4 | 11 | 20.0 | 13 | 8.6 | 20 | 16.0 | 15 | 18.0 | 13 | 130.6 | 5 | |
401-500 tiges/ha | 16.1 | 14 | 11.8 | 17 | 7.7 | 21 | 6.7 | 23 | 7.1 | 22 | 7.0 | 22 | 56.4 | 8 | |
501-600 tiges/ha | 7.6 | 21 | 6.6 | 23 | 3.9 | 30 | 2.9 | 35 | 2.8 | 35 | 4.3 | 29 | 28.2 | 11 | |
>600 tiges/ha | 1.7 | 45 | 5.1 | 26 | 5.0 | 26 | 1.8 | 45 | 1.8 | 45 | 1.5 | 50 | 16.9 | 14 | |
total | 422.2 | 1 | 203.5 | 3 | 130.8 | 5 | 115.1 | 5 | 149.2 | 4 | 145.3 | 3 | 1166.0 | 1 | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0-100 tiges/ha | 139.5 | 4 | 58.3 | 7 | 40.0 | 9 | 47.9 | 8 | 52.8 | 8 | 56.6 | 7 | 395.0 | 2 | |
101-200 tiges/ha | 129.7 | 4 | 63.6 | 7 | 32.3 | 10 | 28.7 | 11 | 37.0 | 9 | 36.0 | 9 | 327.5 | 3 | |
201-300 tiges/ha | 87.8 | 6 | 37.9 | 9 | 27.7 | 11 | 25.6 | 11 | 35.5 | 10 | 33.5 | 9 | 248.0 | 3 | |
301-400 tiges/ha | 43.0 | 9 | 26.5 | 11 | 21.1 | 12 | 9.0 | 19 | 16.3 | 14 | 18.7 | 13 | 134.6 | 5 | |
401-500 tiges/ha | 16.1 | 14 | 12.2 | 16 | 8.0 | 21 | 7.4 | 22 | 7.1 | 22 | 7.7 | 21 | 58.5 | 8 | |
501-600 tiges/ha | 7.6 | 21 | 7.2 | 22 | 4.6 | 28 | 2.9 | 35 | 3.2 | 33 | 4.7 | 27 | 30.3 | 11 | |
>600 tiges/ha | 1.7 | 45 | 5.4 | 25 | 5.4 | 25 | 1.8 | 45 | 1.8 | 45 | 1.5 | 50 | 17.6 | 14 | |
total | 425.4 | 1 | 211.2 | 3 | 139.1 | 4 | 123.2 | 5 | 153.8 | 4 | 158.8 | 2 | 1211.5 | 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. 1248940. Birmensdorf, Swiss Federal Research Institute WSL