Fig. 2: Relationship between the saGPP reduction and the SM decline.
From: Gross primary productivity is more sensitive to accelerated flash droughts
a Variation in saGPP reduction rates across different timescales of flash droughts onset phases. The Mann–Whitney U test was employed to determine the significant difference (P < 0.01) between flash drought onset timescales. The red lines above each bar indicate the range of uncertainty across five different datasets. b A cubic relationship between saGPP reduction rates and intensification rates of flash drought onset phase. The navy dots represent the mean value of saGPP rates in the corresponding SM depletion rate category from the five datasets. The blue ribbon represents the 95% confidence interval, reflecting the structural uncertainty of the cubic spline models.
