Fig. 4From: Long-term nitrogen deposition enhances microbial capacities in soil carbon stabilization but reduces network complexityAssociation networks of microbial functional genes associated with C degradation, C fixation, and N cycling in a control samples and b N deposited samples. C degradation genes are shown in green circles, C fixation genes are shown in blue circles, and N cycling genes are shown in red circles. Positive links between genes are in red and negative links are in blueBack to article page