Fig. 3From: Nitrogen deposition experiment mimicked with NH4NO3 overestimates the effect on soil microbial community composition and functional potential in the Eurasian steppeRelative abundances of functional genes involved in C degradation. The complexity of carbon is presented in order from labile to recalcitrant. Results are reported as the mean ± se (n = 4). Different letters indicate significant (P < 0.05) differences among treatmentsBack to article page