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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 | |||||||||
traces de chutes de pierres | degré de fermeture | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
comprimé | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
normal | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
lâche | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
aéré | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
clairièré | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
en collectifs serrés | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
en collectifs normaux | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
fermeture étagée | 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 | . | |
présentes | pas d'indication | 0.0 | . | 0.8 | 0.4 | 0.0 | . | 0.0 | . | 0.5 | 0.3 | 0.0 | . | 0.2 | 0.1 |
comprimé | 1.8 | 0.4 | 5.7 | 0.9 | 7.4 | 1.3 | 4.0 | 1.1 | 2.1 | 0.7 | 9.3 | 1.4 | 4.4 | 0.3 | |
normal | 1.6 | 0.4 | 2.5 | 0.6 | 6.6 | 1.3 | 2.0 | 0.8 | 2.6 | 0.8 | 7.5 | 1.3 | 3.3 | 0.3 | |
lâche | 0.3 | 0.2 | 0.3 | 0.2 | 2.3 | 0.8 | 2.1 | 0.8 | 1.2 | 0.5 | 1.8 | 0.6 | 1.0 | 0.2 | |
aéré | 0.9 | 0.3 | 1.2 | 0.4 | 2.6 | 0.8 | 4.5 | 1.1 | 2.8 | 0.8 | 2.1 | 0.7 | 1.9 | 0.2 | |
clairièré | 0.0 | . | 1.2 | 0.4 | 2.1 | 0.7 | 4.6 | 1.2 | 1.0 | 0.5 | 2.1 | 0.7 | 1.3 | 0.2 | |
en collectifs serrés | 0.0 | . | 1.5 | 0.5 | 1.1 | 0.5 | 0.3 | 0.3 | 1.2 | 0.5 | 3.0 | 0.8 | 1.0 | 0.2 | |
en collectifs normaux | 0.1 | 0.1 | 0.8 | 0.4 | 1.6 | 0.7 | 0.6 | 0.4 | 2.9 | 0.8 | 2.0 | 0.6 | 1.0 | 0.2 | |
fermeture étagée | 0.4 | 0.2 | 0.9 | 0.4 | 0.3 | 0.3 | 3.0 | 0.9 | 1.0 | 0.5 | 0.2 | 0.2 | 0.8 | 0.2 | |
total | 5.2 | 0.6 | 15.0 | 1.5 | 23.9 | 2.1 | 21.1 | 2.3 | 15.3 | 1.8 | 28.0 | 2.2 | 14.8 | 0.6 | |
absentes | pas d'indication | 0.8 | 0.3 | 1.4 | 0.5 | 1.9 | 0.7 | 2.4 | 0.8 | 2.4 | 0.7 | 1.1 | 0.5 | 1.4 | 0.2 |
comprimé | 28.0 | 1.3 | 18.9 | 1.6 | 20.3 | 2.0 | 17.9 | 2.1 | 7.6 | 1.3 | 24.2 | 2.0 | 21.5 | 0.7 | |
normal | 34.3 | 1.3 | 19.6 | 1.7 | 19.2 | 2.0 | 11.9 | 1.8 | 9.2 | 1.4 | 10.0 | 1.4 | 21.5 | 0.7 | |
lâche | 11.6 | 0.9 | 6.7 | 1.0 | 5.2 | 1.1 | 5.8 | 1.3 | 9.8 | 1.4 | 4.1 | 1.0 | 8.3 | 0.5 | |
aéré | 11.7 | 0.9 | 13.9 | 1.5 | 9.5 | 1.5 | 13.4 | 1.9 | 18.4 | 1.9 | 10.2 | 1.4 | 12.7 | 0.6 | |
clairièré | 4.0 | 0.6 | 8.1 | 1.1 | 6.0 | 1.2 | 11.6 | 1.8 | 14.8 | 1.7 | 10.5 | 1.4 | 7.9 | 0.5 | |
en collectifs serrés | 0.3 | 0.2 | 5.2 | 0.9 | 6.3 | 1.2 | 4.0 | 1.1 | 7.6 | 1.3 | 4.1 | 0.9 | 3.6 | 0.3 | |
en collectifs normaux | 1.0 | 0.3 | 4.8 | 0.9 | 5.7 | 1.2 | 2.1 | 0.8 | 11.4 | 1.5 | 5.5 | 1.1 | 4.2 | 0.3 | |
fermeture étagée | 3.0 | 0.5 | 6.5 | 1.0 | 1.9 | 0.7 | 9.7 | 1.6 | 3.6 | 0.9 | 2.3 | 0.7 | 4.1 | 0.3 | |
total | 94.8 | 0.6 | 85.0 | 1.5 | 76.1 | 2.1 | 78.9 | 2.3 | 84.7 | 1.8 | 72.0 | 2.2 | 85.2 | 0.6 | |
total | pas d'indication | 0.8 | 0.3 | 2.2 | 0.6 | 1.9 | 0.7 | 2.4 | 0.8 | 2.9 | 0.8 | 1.1 | 0.5 | 1.6 | 0.2 |
comprimé | 29.8 | 1.3 | 24.6 | 1.8 | 27.7 | 2.3 | 21.9 | 2.3 | 9.7 | 1.4 | 33.5 | 2.2 | 25.8 | 0.7 | |
normal | 36.0 | 1.4 | 22.1 | 1.7 | 25.8 | 2.2 | 13.9 | 1.9 | 11.8 | 1.6 | 17.5 | 1.8 | 24.8 | 0.7 | |
lâche | 11.9 | 0.9 | 7.0 | 1.1 | 7.6 | 1.4 | 7.9 | 1.5 | 11.0 | 1.5 | 5.9 | 1.1 | 9.3 | 0.5 | |
aéré | 12.6 | 1.0 | 15.1 | 1.5 | 12.1 | 1.7 | 17.9 | 2.1 | 21.2 | 2.0 | 12.4 | 1.6 | 14.6 | 0.6 | |
clairièré | 4.0 | 0.6 | 9.2 | 1.2 | 8.1 | 1.4 | 16.2 | 2.0 | 15.7 | 1.8 | 12.6 | 1.5 | 9.2 | 0.5 | |
en collectifs serrés | 0.3 | 0.2 | 6.7 | 1.1 | 7.3 | 1.3 | 4.3 | 1.1 | 8.8 | 1.4 | 7.1 | 1.2 | 4.6 | 0.4 | |
en collectifs normaux | 1.0 | 0.3 | 5.6 | 1.0 | 7.3 | 1.4 | 2.7 | 0.9 | 14.3 | 1.7 | 7.4 | 1.2 | 5.2 | 0.4 | |
fermeture étagée | 3.4 | 0.5 | 7.4 | 1.1 | 2.2 | 0.8 | 12.8 | 1.8 | 4.6 | 1.0 | 2.6 | 0.8 | 4.9 | 0.4 | |
total | 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. 1354755. Birmensdorf, Swiss Federal Research Institute WSL