Fig. 2From: Comparative studies of the response of larch and birch seedlings from two origins to water deficitMean monthly precipitation and temperature (mean, maximum and minimum) of seed origins from 1971 to 2000. Eastern larch and paper birch are from NB (New Brunswick), eastern Canada (a); Prince Rupprecht’s larch and white birch are from Shanxi, northern China (b)Back to article page