Linking soil organic carbon mineralization to soil physicochemical properties and bacterial alpha diversity at different depths following land use changes

Ecological Processes

Table 1 Basic characteristics of the study sites

Former land use pattern	Current land use pattern	Abbreviation	Tree age	Main understory species	Density
Wheat–corn system	Gingko plantation	G	16	Oxalis corniculata, Ipomoea nil	3 m × 3 m
	Wheat–corn system	W	–	Wheat, corn	–
	Metasequoia plantation	M	7	Fern	0.8 m × 0.8 m
	Gingko–wheat–corn system	GW	16	Wheat, corn	2 m × 8 m
	Gingko–metasequoia system	GM	16 (G), 7 (M)	Fern	2 m × 8 m (G), 0.8 m × 0.8 m (M)