The Variations of Nitrogen and Phosphorus Concentrations in the Monitoring Stations of the Three Major Rivers in China
DUAN Shui-wang, ZHANG Shen
SCIENTIA GEOGRAPHICA SINICA ›› 1999, Vol. 19 ›› Issue (5) : 411-416.
The Variations of Nitrogen and Phosphorus Concentrations in the Monitoring Stations of the Three Major Rivers in China
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