Fig. 5
Spatial pattern and frequency distribution of partial correlation coefficient between the end of growing season (EGSsif) and climatic factors: a, d precipitation (Pre), b, e maximum temperature (Tmax) and c, f minimum temperature (Tmin). The methods of the left panel and the right panel are derivative and dynamic threshold methods respectively. The percentages of positive (P) and negative (N) correlations (P < 0.05, percentage of significant correlations in parentheses) are provided