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région de production | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jura | Plateau | Préalpes | Alpes | Sud des Alpes | Suisse | ||||||||
âge du peuplement (classes de 40 ans) | stabilité du peuplement | % | ± | % | ± | % | ± | % | ± | % | ± | % | ± |
pas d'indication | pas d'indication | . | . | . | . | . | . | . | . | . | . | . | . |
critique | . | . | . | . | . | . | . | . | . | . | . | . | |
amoindrie | . | . | . | . | . | . | . | . | . | . | . | . | |
stable | . | . | . | . | . | . | . | . | . | . | . | . | |
total | . | . | . | . | . | . | . | . | . | . | . | . | |
0 (sans boisement) | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 0.0 | . | 8.4 | 8.0 | 0.0 | . | 7.9 | 5.4 | 20.3 | 18.2 | 7.7 | 3.7 | |
amoindrie | 33.7 | 27.4 | 50.4 | 14.5 | 40.4 | 18.4 | 26.6 | 8.7 | 59.3 | 22.1 | 37.3 | 6.6 | |
stable | 66.3 | 27.4 | 41.2 | 14.2 | 59.6 | 18.4 | 65.4 | 9.3 | 20.3 | 18.2 | 55.0 | 6.8 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
1-40 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.4 | 1.9 | 3.3 | 1.3 | 7.4 | 2.7 | 3.9 | 1.9 | 8.2 | 5.6 | 4.5 | 0.9 | |
amoindrie | 47.4 | 5.3 | 57.0 | 3.7 | 57.5 | 5.3 | 56.3 | 4.8 | 76.4 | 8.5 | 56.2 | 2.3 | |
stable | 49.2 | 5.3 | 39.7 | 3.7 | 35.1 | 5.1 | 39.8 | 4.8 | 15.4 | 7.1 | 39.3 | 2.2 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
41-80 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 6.7 | 2.9 | 8.6 | 2.4 | 4.3 | 2.5 | 9.0 | 2.6 | 8.5 | 2.6 | 7.8 | 1.2 | |
amoindrie | 44.2 | 5.8 | 52.0 | 4.2 | 64.1 | 5.7 | 60.6 | 4.4 | 67.9 | 4.3 | 58.3 | 2.1 | |
stable | 49.1 | 5.8 | 39.5 | 4.1 | 31.5 | 5.5 | 30.4 | 4.2 | 23.6 | 3.8 | 33.9 | 2.0 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
81-120 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 0.7 | 0.7 | 1.1 | 0.8 | 7.1 | 2.4 | 1.7 | 1.2 | 0.0 | . | 2.2 | 0.6 | |
amoindrie | 37.3 | 4.0 | 43.8 | 3.7 | 55.0 | 4.7 | 54.8 | 4.6 | 54.9 | 9.4 | 47.0 | 2.1 | |
stable | 62.1 | 4.0 | 55.0 | 3.7 | 37.9 | 4.6 | 43.5 | 4.6 | 45.1 | 9.4 | 50.7 | 2.1 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
121-160 ans | pas d'indication | 1.6 | 1.6 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.3 | 0.3 |
critique | 1.8 | 1.8 | 1.8 | 1.8 | 3.9 | 2.2 | 4.5 | 2.0 | 3.5 | 3.5 | 3.3 | 1.0 | |
amoindrie | 33.9 | 6.0 | 37.2 | 6.6 | 56.7 | 5.6 | 47.9 | 4.7 | 39.2 | 9.2 | 44.9 | 2.7 | |
stable | 62.7 | 6.2 | 61.0 | 6.7 | 39.4 | 5.5 | 47.6 | 4.7 | 57.3 | 9.4 | 51.4 | 2.7 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
>160 ans | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.6 | 3.5 | 0.0 | . | 0.0 | . | 1.8 | 1.0 | 2.5 | 2.5 | 1.7 | 0.8 | |
amoindrie | 51.5 | 9.7 | 50.7 | 17.7 | 64.8 | 6.4 | 43.5 | 3.9 | 43.1 | 7.6 | 48.2 | 2.9 | |
stable | 44.9 | 9.6 | 49.3 | 17.7 | 35.2 | 6.4 | 54.7 | 3.9 | 54.4 | 7.6 | 50.1 | 2.9 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
peuplements inéquiens | pas d'indication | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . |
critique | 3.8 | 1.7 | 1.6 | 1.6 | 2.9 | 1.4 | 0.8 | 0.6 | 1.2 | 1.2 | 1.9 | 0.5 | |
amoindrie | 31.0 | 4.0 | 45.7 | 6.0 | 42.7 | 4.1 | 41.0 | 3.0 | 50.3 | 5.4 | 41.1 | 1.9 | |
stable | 65.2 | 4.1 | 52.6 | 6.0 | 54.4 | 4.1 | 58.2 | 3.0 | 48.6 | 5.4 | 56.9 | 1.9 | |
total | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | 100.0 | . | |
total | pas d'indication | 0.2 | 0.2 | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | . | 0.0 | 0.0 |
critique | 3.0 | 0.7 | 3.6 | 0.7 | 4.5 | 0.9 | 3.2 | 0.6 | 4.9 | 1.2 | 3.7 | 0.3 | |
amoindrie | 38.7 | 2.1 | 49.3 | 2.0 | 54.4 | 2.1 | 48.0 | 1.7 | 57.2 | 2.7 | 48.9 | 0.9 | |
stable | 58.1 | 2.1 | 47.1 | 2.0 | 41.1 | 2.1 | 48.7 | 1.7 | 37.9 | 2.6 | 47.4 | 0.9 | |
total | 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. 1380498. Birmensdorf, Swiss Federal Research Institute WSL