降水对古尔班通古特沙漠细菌群落多样性和构建过程的影响

杜芳, 荣晓莹, 徐鹏, 尹本丰, 张元明

Bacterial diversity and community assembly responses to precipitation in the Gurbantunggut Desert

Fang Du, Xiaoying Rong, Peng Xu, Benfeng Yin, Yuanming Zhang

图3 整个样带不同丰度细菌群落构建(a)及沿降水梯度不同样点细菌群落构建过程的比例(b)。群落构建的比例包括确定性过程(同质选择和异质选择)以及随机过程(扩散限制和同质扩散)的支配, 以及不受任何单一过程支配的(“非主导过程”)。CNW: 彩南西; CNN: 彩南北; YZ: 一站; SXS: 石西南; SXE: 石西东。

Fig. 3 The fraction of assembly mechanism in whole, abundant and rare bacterial subcommunities based on the null model. The percent of turnover in whole, abundant and rare bacterial community assembly governed primarily by various deterministic, including homogeneous and heterogeneous selection, and stochastic processes, including dispersal limitations and homogenizing dispersal, as well as the fraction that was not dominated by any single process (‘Undominated’).