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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 | |||||||||
groupe d'essences dominantes | âge du peuplement (classes de 40 ans) | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0 (sans boisement) | 0.0 | . | 17.4 | 9.2 | 25.8 | 10.1 | 21.7 | 9.6 | 19.7 | 12.5 | 20.3 | 10.5 | 14.7 | 3.3 | |
1-40 ans | 87.6 | 5.8 | 66.1 | 11.4 | 64.2 | 11.0 | 72.8 | 10.4 | 80.3 | 12.5 | 53.6 | 12.9 | 73.1 | 4.2 | |
41-80 ans | 3.1 | 3.1 | 11.1 | 7.4 | 0.0 | . | 0.0 | . | 0.0 | . | 13.0 | 8.6 | 4.3 | 1.9 | |
81-120 ans | 3.0 | 3.0 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.9 | 0.9 | |
121-160 ans | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | |
>160 ans | 0.0 | . | 0.0 | . | 5.0 | 4.9 | 0.0 | . | 0.0 | . | 0.0 | . | 0.9 | 0.9 | |
peuplements inéquiens | 6.2 | 4.3 | 5.5 | 5.4 | 4.9 | 4.8 | 5.5 | 5.4 | 0.0 | . | 13.0 | 8.6 | 6.1 | 2.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
résineux | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0 (sans boisement) | 0.4 | 0.3 | 1.7 | 0.6 | 0.5 | 0.5 | 1.2 | 0.7 | 2.4 | 0.8 | 1.1 | 0.8 | 1.2 | 0.2 | |
1-40 ans | 21.7 | 1.6 | 13.5 | 1.7 | 15.2 | 2.3 | 10.9 | 1.9 | 13.3 | 1.8 | 8.3 | 2.1 | 15.2 | 0.8 | |
41-80 ans | 14.4 | 1.4 | 11.4 | 1.6 | 10.7 | 1.9 | 10.5 | 1.9 | 10.3 | 1.6 | 14.9 | 2.6 | 12.2 | 0.7 | |
81-120 ans | 23.0 | 1.7 | 15.5 | 1.7 | 23.6 | 2.7 | 8.7 | 1.8 | 12.7 | 1.7 | 10.2 | 2.3 | 16.8 | 0.8 | |
121-160 ans | 16.4 | 1.5 | 13.5 | 1.6 | 18.7 | 2.4 | 12.8 | 2.1 | 16.6 | 1.9 | 11.5 | 2.4 | 15.2 | 0.8 | |
>160 ans | 3.2 | 0.7 | 9.1 | 1.4 | 9.5 | 1.9 | 15.2 | 2.3 | 15.6 | 1.9 | 14.2 | 2.6 | 9.8 | 0.6 | |
peuplements inéquiens | 21.0 | 1.7 | 35.4 | 2.3 | 21.8 | 2.7 | 40.6 | 3.1 | 29.0 | 2.4 | 39.7 | 3.7 | 29.6 | 1.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
feuillus | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0 (sans boisement) | 1.3 | 0.5 | 0.9 | 0.9 | 0.8 | 0.8 | 0.0 | . | 2.5 | 2.5 | 0.0 | . | 0.9 | 0.3 | |
1-40 ans | 22.0 | 1.6 | 22.7 | 3.6 | 25.0 | 4.0 | 38.4 | 6.6 | 40.8 | 7.6 | 21.9 | 2.6 | 23.8 | 1.2 | |
41-80 ans | 21.1 | 1.7 | 15.8 | 3.1 | 21.3 | 3.8 | 29.1 | 6.1 | 14.4 | 5.4 | 39.8 | 3.2 | 24.5 | 1.2 | |
81-120 ans | 31.9 | 1.9 | 20.0 | 3.4 | 25.2 | 3.9 | 5.5 | 3.1 | 6.7 | 3.8 | 5.4 | 1.5 | 22.2 | 1.2 | |
121-160 ans | 8.0 | 1.1 | 10.2 | 2.6 | 5.7 | 2.1 | 1.6 | 1.6 | 8.9 | 4.2 | 1.4 | 0.8 | 6.4 | 0.7 | |
>160 ans | 1.1 | 0.4 | 0.6 | 0.6 | 2.5 | 1.4 | 0.0 | . | 0.0 | . | 1.7 | 0.8 | 1.2 | 0.3 | |
peuplements inéquiens | 14.7 | 1.5 | 29.9 | 3.9 | 19.6 | 3.7 | 25.4 | 5.9 | 26.7 | 6.8 | 29.8 | 3.0 | 21.1 | 1.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
0 (sans boisement) | 0.8 | 0.3 | 2.0 | 0.6 | 1.9 | 0.7 | 2.1 | 0.8 | 2.9 | 0.8 | 1.1 | 0.5 | 1.6 | 0.2 | |
1-40 ans | 23.8 | 1.0 | 17.3 | 1.6 | 20.8 | 2.1 | 18.9 | 2.1 | 17.6 | 1.8 | 17.3 | 1.8 | 20.2 | 0.6 | |
41-80 ans | 17.2 | 1.1 | 12.4 | 1.4 | 13.5 | 1.7 | 13.1 | 1.9 | 10.5 | 1.5 | 28.7 | 2.2 | 16.2 | 0.6 | |
81-120 ans | 26.7 | 1.2 | 16.0 | 1.5 | 22.9 | 2.1 | 7.7 | 1.5 | 11.8 | 1.6 | 7.2 | 1.3 | 18.1 | 0.6 | |
121-160 ans | 11.9 | 0.9 | 12.3 | 1.3 | 13.7 | 1.7 | 10.2 | 1.7 | 15.4 | 1.7 | 5.5 | 1.1 | 11.6 | 0.5 | |
>160 ans | 2.1 | 0.4 | 6.8 | 1.0 | 7.1 | 1.3 | 11.9 | 1.8 | 13.7 | 1.7 | 6.8 | 1.2 | 6.5 | 0.4 | |
peuplements inéquiens | 17.5 | 1.1 | 33.1 | 2.0 | 20.2 | 2.1 | 36.1 | 2.7 | 28.1 | 2.2 | 33.4 | 2.3 | 25.8 | 0.7 | |
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. 1322112. Birmensdorf, Swiss Federal Research Institute WSL