Dendroséries du pin blanc (Pinus strobus L.) et de la pruche de l'Est (Tsuga canadensis L. [Carr.]) dans la région de Québec

摘要

Reported here are two dendrochronological series, one for white pine, the Champlain series (1470-1987), the second for hemlock, the Rivière-du-Moulin series (1524-1982), which together span the period of historical colonisation for eastern North America. The construction of a long, white pine reference series was made possible by using series built locally from: 1) subfossil trees sampled in the Charlevoix region at a site where a landslide occurred after the 1663 earthquake (period 1470-1662); 2) living trees sampled in the Lotbinière region at the Rivière-du-Moulin site (period 1734-1987), and 3) wood excavated at various archeological sites in the Québec region, along with samples from the two high altars in the Ursulines' chapel, located in Old Québec city. Going back to late 17th century and early 18th century, samples from the third group bridge the gap between the Charlevoix and the Lotbinière local series. The hemlock tree-ring series (Rivière-du-Moulin) (1524-1982) was built from living trees sampled in the Lotbinière region.