Extended Data Fig. 6: Temporal changes of resistance and resilience for gymnosperm and angiosperm forests during 1910-2009.

Temporal change of (a) gymnosperm resistance, (b) angiosperm resistance, (c) gymnosperm resilience, (d) angiosperm resilience. 290 gymnosperm sites in (a) and (c) and 65 angiosperm sites in (b) and (d) experiencing droughts in all four periods, i.e. before 1950, 1950-1969, 1970-1989, and 1990-2009 were used for temporal analysis. The x-axis represents the range of ln-transformed resistance (ln(Rt + 1)) and resilience (ln(Rs + 1)) at each RWI site during three periods. Histograms (left y-axis) show the distribution of ln (Rt + 1) and ln(Rs + 1) and lines (right y-axis) show the kernel density distribution of ln(Rt + 1) and ln(Rs + 1) during the period of before 1950 (gray), 1950-1969 (blue), 1970-1989 (orange), and 1990-2009 (purple). The boxplots in the inset of each panel show the distribution of temporal change in 1970-1989 (orange) and 1990-2009 (purple) relative to 1950-1969 for all sites. The yellow lines represent median values and points represent mean values in the boxes. The percentages of sites showing positive change (+) and negative change (-) are displayed in the panels. Significant differences (p < 0.05) of all sites between 1970-1989 and 1950-1969, and between 1990-2009 and 1950-1969 were identified by Kruskal-Wallis test and denoted by asterisks (*).