Purpose: Microbial exoenzyme activity (EEA) and stoichiometry (EES) are of great significance to soil health through their influence on carbon (C), nitrogen (N), and phosphorus (P) cycling. However, when agricultural soil is contaminated by cadmium (Cd), the underlying mechanisms and effects on EEA and EES are still poorly understood. Materials and methods: Here, we examine the effect of different remediation treatments (no amendment, 0.3% lime application, and 1.0% biochar application) on EEA and EES and the driving factors in a Cd-contaminate...
