Long-term loblolly pine land use reduces methane and net greenhouse gas emissions in a subtropical Cambisol, despite increasing nitrous oxide

Key message In loblolly pine land use of 17–32 years following forest clearing, CH 4 consumption and N 2 O emission diminished by 17 years, due to high soil moisture (~ 80% WFPS, N 2 O into N 2 ), but increased by 32 years, where medium moisture favoured methanotrophy and denitrification into N 2 O. Soil greenhouse gases (GHG) emission was positive by 17 years, but negative by 32, when soil sequestered carbon.