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. 2020 Sep 28;7:316. doi: 10.1038/s41597-020-00651-7

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© The Author(s) 2020

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Fig. 3 — Sampling design. (a) Scheme of a sampling plot with subplots. The location of subplots within a 10 m × 10 m square was chosen randomly; (b) Location of a subplot with respect to the flakeboard.