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. 2018 Mar 28;9:589. doi: 10.3389/fmicb.2018.00589

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Copyright © 2018 Qin, Wu, Li, Li, Zhang and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Distribution of OTUs with different occurrence frequency. (A) Relative abundance of OTUs with different occurrence frequency in five sampling time points. (B) Relative abundance of OTUs with different occurrence frequency in seven sampling heights. (C) The percentage of OTUs number with different occurrence frequency, the according numbers of OTUs were presented in the brackets.