Coherent responses of terrestrial C:N stoichiometry to drought across plants, soil, and microorganisms in forests and grasslands

Carbon (C) and nitrogen (N) are key to biogeochemical cycles in terrestrial ecosystems. Despite the negative effects of drought on multiple ecosystem processes, our understanding of the responses of C and N in plants, soil, and microorganisms to drought remains incomplete. Our meta-analysis of 379 observations from 79 studies revealed that the C and N concentrations and C:N ratios of plant organs, litter, and soil, and activities and...