【摘要】 根据1987年6月、8月、11月和1988年2月的历史资料,估算了伶仃洋水域活性硅酸盐的输入通量,研究了活性硅酸盐与盐度间的相互关系及磷、氮和硅之间的比值。结果表明,通过四大口门输入伶仃洋的硅通量为185×10~4t/a;回归分析的结果表明,除1988年2月外,其他航次硅酸盐与盐度间呈高度显著负相关,呈保守性,枯水期(1988—02)硅酸盐存在生物转移.转移量为18.2％。磷、氮、硅之间的平均比值,丰水期表层1:62:149,底层为1:47:90;枯水期表层为1:98:175,底层为1:93:172。更多还原

【Abstract】 The fluxes of silicate arc estimated through four mouthes to Lingdingyang and the relationship between reactive silicate and salinity as well as the ratio of P: N : Si are studied. The results show that the amount of silicate input to Lingdingyang is 184 x 10 /a and there is a good negative correlation between reactive silicate and salinity with the confidence level of 99.9%, except in February 1988. Using regression analysis, the results show that there is biological removal with an amount of 18. 2% in the dry season ( 1988 02) . In the flood sea son (1987 06 and 1987-08), the mean mol ratio of P: N: Si in the surface and bottom water is about 1: 62: 149 and 1: 47: 90, respectively; and in the dry season (1987 11 and 1988 02), it is about 1: 98: 175 and 1: 93: 172, respectively.更多还原