中国主要河流控制站氮、磷含量变化规律初探

段水旺, 章申

The Variations of Nitrogen and Phosphorus Concentrations in the Monitoring Stations of the Three Major Rivers in China

DUAN Shui-wang, ZHANG Shen

地理科学 . 1999, (5): 411 -416 . DOI: 10.13249/j.cnki.sgs.1999.05.411