Amplicon Sequencing of Poplar Rhizosphere Soil
The study site was located in the southern Jiangsu hilly region (33.089167 N, 119.615278 E) in China. The study focused on plantations of black poplar in southern Jiangsu with different stand ages but consistent site conditions, including young stands (HY, no more than 5 years old), middle-aged stands (HH, 6-10 years old), and nearly mature stands (HN, 11-15 years old).First, the litter was removed from the soil surface, and the soil samples were then collected from the 0-15 cm layers. The soil samples from the same plot were thoroughly mixed by layer .