Soil organic carbon fraction mediated microbial community assembly along stand age and seasonal gradients in temperate poplar plantations - Xiangrong Liu; Changjun Ding; Lingyu Hou; Qiwu Sun; Weixi Zhang; Wenxu Zhu; Xiaohua Su; Zhongyi Pang; Rusheng Peng; Yanlin Zhang; Zhengsai Yuan (Plant and Soil, 2026)