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. 2021 Mar 22;12:622043. doi: 10.3389/fpls.2021.622043

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Copyright © 2021 Feng, Huang, Xu, Li and Zang.

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(s) 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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Variation partitioning for SR (species richness, A), skewness (B), d (the Berger–Parker index, C), and PS (proportion of singletons, D). Sums of values within the blue and red circles are the percentage of variations in diversity patterns explained by soil nutrients and topographical factors, respectively. Values in the overlapping areas between the two circles are the proportions of variations jointly explained by soil nutrients and topographical factors.