Fig. 4: Changes in drought characteristics as a function of psl fraction changes. | Communications Earth & Environment

Fig. 4: Changes in drought characteristics as a function of psl fraction changes.

From: Drought frequency, intensity, and exposure have increased due to historical land use and land cover changes

Fig. 4: Changes in drought characteristics as a function of psl fraction changes.

Changes in drought frequency (a), duration (b), severity (c), and intensity (d) binned by the fraction changes in primary and secondary land (psl) at intervals of 10%. Negative (positive) psl fraction changes denote deforestation (reforestation). Black dots are the multi-model mean (MMM) values of each bin, while vertical lines denote the 95% CI of each bin. The red lines are least-squares linear regressions based on the MMM values of each bin, with the slope and correlation coefficient values (r) shown at the upper-right corner of each panel. The red shaded regions are the 95% regression estimates based on a bootstrap technique. The inserted gray bar plot in (a) is land fractions of each bin relative to the global land (without Antarctica) on a logarithmic scale.

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