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根据1992年8月辽河口水域营养要素的实测结果,讨论了辽河口水域溶解态无机氮（NO_3 N、NO_2 N、NH_4~+-N）、活性磷酸盐（PO_4~3 P）和活性硅酸盐（SiO_3~2 -Si）的含量、分布与变化特征。结果表明:辽河口水域溶解态无机氮含量范围为12.06～98.93μmol/L,活性磷酸盐含量范围为0.71～2.8μmol/L,活性硅酸盐含量范围为3.60～47.01μmol/L。各营养盐的含量均是淡水端高于海水端,即呈现随着水体盐度值的增大而递减的变化,并均呈现保守性行为的特征。
According to the measured results of nutrient elements in Liaohe River waters in August 1992, the effects of dissolved inorganic nitrogen (NO_3N, NO_2N, NH_4 ~ + -N), active phosphate (PO_4 ~ 3P) and activated silicate Salt (SiO_3 ~ 2 -Si) content, distribution and variation characteristics. The results showed that the content of dissolved inorganic nitrogen in the Liaohe River estuary was 12.06 ~ 98.93μmol / L, the active phosphate content was 0.71 ~ 2.8μmol / L and the active silicate content was 3.60 ~ 47.01μmol / L. The content of nutrients in freshwater is higher than that in seawater, which shows the decrease with the increase of salinity value of water body, and all of them show the characteristics of conservative behavior.