Upgrade from aerated static pile to agitated bed systems promotes lignocellulose degradation in large-scale composting through enhanced microbial functional diversity

•A metaproteomics-based comparison of microbial degradation from ASP to AB was conducted.•Upgrading from ASP to AB increased lignocellulose degradation rates by 18.49-46.52%.•The upgrade from ASP to AB improved diversity of CAZyme-producing microbes.•AB but not ASP can produce the key enzyme for acetate conversion.•AB was superior to ASP for compost decomposition with higher cellulose.