Impacts of cropping practices on yield-scaled greenhouse gas emissions from rice fields in China: A meta-analysis

► We assessed the impacts of rice cropping practices on yield-scaled GHG emissions. ► Significant differences showed in the yield-scaled GWP among rice cropping systems. ► N fertilization could reduce the yield-scaled GWP as compared to non-fertilization. ► Biogas residue, intermittent irrigation and no-tillage had lower yield-scaled GWP. ► Adjusting practices is a potential way to balance yield increase and GHG reduction.