长江河口夏季营养盐的分布、变化及锋面对营养盐的影响

Variation of Nutrients and the Impact of Fronts during Summer in Yangtze Riv

利用长江河口1988年8月■面同步调查的营养盐资料,阐述了长江河口复季营养盐西高东低、南高北低的分布大势中寓有多样的分布势态和复杂的变化特征,进而探明了径流输移是控制长江河口营养盐分布大势的主要因素,而生物过程参与物理、化学等各种过程之中,是致使营养盐分布势态多样、变化复杂的重要原因。最后探讨了锋面对营养盐分布、输移的影响。

Based on the data of nutrients collected in August 1988, It revealed that the distributions of nutrients in Yangtze estuary were characterized by high concentration in the west and south while low value in the east and north in summer. It was found that runoff of the flow was the major factor affecting the distributions of m(?)trients and the combination of physical, chemical and biological processes was the main reason of the variation. The impact of front on the distribution and transportation of nutrients was also discussed.