The NO 3 − -N showed an increasing trend with the growing season, with a significantly higher amount in autumn (11.29 mg·kg −1 ) than that of the spring (6.34 mg·kg −1 ).
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Seasonal Dynamics of Leaf Stoichiometry of <i>Phragmites australis</i>: A Case Study From Yangguan Wetland, Dunhuang, China.
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