It is noteworthy that the direct associations of environmental factors and microbial community diversity with nitrogen cycling gene abundance did not reach statistical significance.
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Seasonal variations drive microbial community structure and nitrogen cycling in sediments of tributary pumping station forebays.
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The sentences
WT, COD Mn , and TN were identified as key environmental factors significantly associated with the distribution of these functional genes, accounting for 34.2% ( P < 0.01), 8.7% ( P < 0.05), and 6.9% ( P < 0.05) of the variance explained, all of which reached significant or highly significant levels.