Fig. 3From: Effect of thinning intensity on the stem CO2 efflux of Larix principis-rupprechtii MayrThinning intensity variations (TI) in the wood structures (bark thickness (BT), sapwood width (SW), width ratio of heartwood to sapwood (HS) and sapwood growth rate (SR)) of 21- (a), 25- (b) and 41-year-old (c) Larix principis-rupprechtii forests. Error bars indicate the standard error, n = 9.Back to article page