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. 2020 Oct 16;15(3):623–635. doi: 10.1038/s41396-020-00801-0

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Differences in community composition of ammonia-oxidising bacteria (amoA) and nitrous oxide reducing bacteria (nosZ) across sites (A, C, respectively), and relationships between community dissimilarity and differences in soil pH (B, D, respectively). Distances were calculated on rarefied OTU tables using the Bray–Curtis dissimilarity index. In NMDS plots (A, C), points closer together indicate more similar communities, and hollow points show site-level centroids (mean axis values for each site). In B, D, points represent pairwise comparisons between rarefied communities, where 0 indicates two identical communities, whilst 1 indicates two communities with no common OTUs.