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C8 Nyon-St-Cergue



A case from western Switzerland


General information on the forests of Nyon-St-Cergue.

Forest communityCôte du Jura: mixed beech (Fagus sylvatica), and silver fir (Abies alba). Mountain forests: mixed Norway spruce (Picea abies), silver fir, and beech
Total forest area1391 ha
Main management typesProgressive shelterwood cutting (“coupe d’abri cuttings”) (Côte du Jura) and selection cutting system (mountain forests)
Total volume250 m³/ha (Côte du Jura), 340 m³/ha (mountain forests)
Annual growth6.2 m³/ha (Côte du Jura), 5.4 m³/ha (mountain forests)
Annual use4.3 m³/ha (1977–2016: 3273 m³ by Nyon and 2650 m³ by St-Cergue)
Deadwood (standing and lying)12–15 m³/ha
Altitude600–1500 m
OwnershipCommunity forest
GeologyHard limestone (Malm era), often outcropping with different karst forms (lapiez); marly limestone; Quaternary moraine on the Jura slopes
Forest reserves70 ha (in progress)
Old-growth islands32 ha (in progress)
Habitat trees150 (in progress)
Protective function43 ha