Fig. 8From: Climatic effects on radial growth of major tree species on Changbai MountainCorrelations of the first six principal component score time series (PC1-PC6) with: a monthly PDSI, and b annual average of monthly climate variables (October of previous year to current-year September) for the period of 1902–2000 (PDSI of 1912–2000). Dashed lines indicate significant correlations at p < 0.05 and p < 0.01, respectivelyBack to article page