Supplementary Online Material Legends
Supplementary Online Material 1 Data extracted from 178 papers.
Supplementary Online Material 2 List of 178 papers used in the meta-analysis.
Supplementary Online Material 3 Global distribution of the 178 field experiments sites around the world.
Supplementary Online Material 4 Relationship between soil microbial characteristics (lnRR ) and other factors.
Supplementary Online Material 5 Meta-Analysis Code.
Supplementary Online Material 6 Influence of addition with different types of N fertilizers on soil microbial characteristics.
Supplementary Online Material 7 Detailed information of the influence of addition with different N types on soil microbial characteristics under different ecosystems.
Supplementary Online Material 8 . Relationship between N fertilized rate and ΔpH.
Supplementary Online Material 9 Relationship between actinomycete biomass and ΔpH.
Supplementary Online Material 10 Effects of MAP on the total microbial biomass after addition of different N types.