Soil protistan community composition and soil environmental factors under seven N addition levels

OTU table and environmental factors under seven N addition levels (0, 10, 20, 40, 80, 120, and 160 kg N·ha⁻¹·yr⁻¹), and the corresponding taxonomy table: 1. OTU data Obtained from 18S rDNA V4 hypervariable region sequencing 2. Taxonomy data Taxonomic classification of soil protists 3.Functional Group Classification Functional group Classification for soil protists 4. Environmental factors data pH, SOC, TN, TP, MBC, MBN, MBP, and the corresponding stoichiometric ratios 5. R software code R software code for the analysis of soil protistan community and environmental factors