Carbon fluxes within tree-crop-grass agroforestry system: 13C field labeling and tracing separately with 13CO2 for 6 h, and 13
C was traced in shoots, roots, topsoil (0–15 cm) and subsoil
Drivers of microbially and plant-derived carbon in topsoil and subsoilPlant- and microbially derived carbon (
C) are the two major sources of soil organic matter (SOM