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. 2022 Aug 25;12:14490. doi: 10.1038/s41598-022-18773-w

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© The Author(s) 2022, corrected publication 2022

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(a) global direct soil emissions (TgN2O) calculated using different emission factors; (b) regional direct soil emissions (TgN2O) calculated using different emission factors. Grey bars indicate standard deviation.