soil metagenome
In this study, two different types of loess-paleosol profiles, Jiuzhoutai on the Loess Plateau located on the north bank of the Yellow River in Lanzhou City, Gansu Province and Renjiapo in Bailuyuan, Xi 'an City, were selected to analyze the sequences L1, S1, L3, S3, L5 and S5 respectively.