Fig. 1: Effects of different periods of extreme drought on soil biochemical properties.

A–C Changes of soil C components under extreme drought events. D–F Changes of different nitrogen components in soil under extreme drought events. Values are mean ± 1.5SE, “—” represents median line, “◆” represents outliers. SOC soil organic carbon, DOC dissolved organic carbon, MBC microbial biomass carbon, TN total nitrogen.