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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 ≥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 | . | 0.4 | 100 | 1.0 | 58 | 0.4 | 100 | 0.0 | . | 1.4 | 50 | 3.2 | 33 | |
101-200 tiges/ha | 0.4 | 100 | 0.3 | 100 | 0.7 | 71 | 0.4 | 100 | 1.4 | 50 | 0.7 | 71 | 4.0 | 30 | |
201-300 tiges/ha | 0.3 | 100 | 0.3 | 100 | 1.0 | 58 | 1.4 | 50 | 0.0 | . | 0.7 | 71 | 3.8 | 30 | |
301-400 tiges/ha | 1.0 | 58 | 1.4 | 50 | 1.3 | 50 | 0.7 | 71 | 0.3 | 100 | 2.2 | 41 | 7.0 | 22 | |
401-500 tiges/ha | 0.3 | 100 | 0.7 | 71 | 1.1 | 58 | 1.8 | 45 | 0.4 | 100 | 1.2 | 57 | 5.4 | 26 | |
501-600 tiges/ha | 0.0 | . | 1.5 | 50 | 1.4 | 50 | 0.7 | 71 | 0.0 | . | 0.3 | 100 | 3.9 | 30 | |
>600 tiges/ha | 1.1 | 58 | 2.0 | 41 | 0.7 | 71 | 2.1 | 41 | 0.7 | 71 | 4.9 | 27 | 11.5 | 18 | |
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 | 44.5 | 8 | 14.3 | 16 | 12.2 | 17 | 8.1 | 21 | 14.3 | 15 | 9.3 | 19 | 102.8 | 6 | |
101-200 tiges/ha | 71.8 | 6 | 27.4 | 11 | 16.9 | 14 | 10.6 | 18 | 15.7 | 15 | 13.3 | 16 | 155.8 | 4 | |
201-300 tiges/ha | 72.2 | 6 | 30.0 | 11 | 20.7 | 13 | 15.9 | 15 | 23.4 | 12 | 11.8 | 17 | 174.0 | 4 | |
301-400 tiges/ha | 70.5 | 6 | 28.9 | 11 | 14.9 | 15 | 13.1 | 16 | 15.8 | 15 | 17.7 | 13 | 161.0 | 4 | |
401-500 tiges/ha | 48.9 | 8 | 22.3 | 12 | 13.8 | 15 | 13.9 | 16 | 12.2 | 17 | 15.4 | 15 | 126.5 | 5 | |
501-600 tiges/ha | 37.5 | 9 | 19.4 | 13 | 8.6 | 20 | 7.1 | 22 | 10.6 | 18 | 11.8 | 17 | 95.0 | 6 | |
>600 tiges/ha | 61.7 | 7 | 37.1 | 9 | 23.5 | 12 | 19.2 | 13 | 24.4 | 12 | 29.8 | 10 | 195.7 | 4 | |
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 | 44.5 | 8 | 14.7 | 16 | 13.2 | 16 | 8.4 | 20 | 14.3 | 15 | 10.7 | 17 | 105.9 | 6 | |
101-200 tiges/ha | 72.2 | 6 | 27.8 | 11 | 17.6 | 14 | 11.0 | 18 | 17.1 | 14 | 14.0 | 15 | 159.8 | 4 | |
201-300 tiges/ha | 72.5 | 6 | 30.3 | 11 | 21.7 | 13 | 17.3 | 14 | 23.4 | 12 | 12.6 | 16 | 177.8 | 4 | |
301-400 tiges/ha | 71.6 | 6 | 30.3 | 10 | 16.2 | 14 | 13.9 | 16 | 16.1 | 14 | 20.0 | 13 | 168.0 | 4 | |
401-500 tiges/ha | 49.2 | 8 | 22.9 | 12 | 14.8 | 15 | 15.7 | 15 | 12.6 | 17 | 16.6 | 14 | 131.9 | 5 | |
501-600 tiges/ha | 37.5 | 9 | 20.9 | 13 | 10.0 | 18 | 7.7 | 21 | 10.6 | 18 | 12.2 | 17 | 98.9 | 6 | |
>600 tiges/ha | 62.7 | 7 | 39.1 | 9 | 24.2 | 12 | 21.3 | 12 | 25.1 | 12 | 34.7 | 9 | 207.2 | 4 | |
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. 1310999. Birmensdorf, Swiss Federal Research Institute WSL