珠江口海水碱度研究  

The Alkalinity of Seawater in Zhujiang River Estuary

作　　者：李福荣[1] 陈国华[1] 纪红[1] 

机构地区：[1]青岛海洋大学化学化工学院,青岛266003

出　　处：《中国海洋大学学报（自然科学版）》1999年第S1期49-54,共6页Periodical of Ocean University of China

基　　金：国家自然科学基金

摘　　要：采用ｐＨ 电测法测定了珠江口区表层海水碱度。发现珠江河口区表层海水碱度，在盐度０ ．０８０～２５．７２２ 范围内，变化范围为０．６７０ ～１ ．９４ｍｍｏｌ·ｄｍ － ３ ，碱度平均值为１ ．４３ ±０ ．３３ｍｍｏｌ·ｄｍ － ３ 。相应比碱度变化范围为０．１０６ ～６８ ．６６７ ，平均为１１ ．３ ±２２ ．６ 。自湾北到湾外碱度随盐度增大而增大，与盐度呈密切正相关。并讨论了比碱度、碳酸碱度与硼酸碱度的分布变化。In this paper the alkalinity of seawater in the Zhu jiang River Estuary is the measured by pH electronic detection. It was found that the range of alkalinity in sea water of the Zhu jiang River Estuary is 0.67 to 1.94 mmol·dm -3 , whereas the range of salinity is 0.080 to 25.722. The average of alkalinity is 1.43±0.33mmol·dm -3 and the range and mean value of specific alkalinity is 0.106 to 68.7, 11.3±22.6, respectively. The alkali9nity greatly increases with salinity increasing from the northern part of the bay to the southern part of the bay. The correlation between alkalinity and salinity is positive. The distribution variation of specific alkalinity, carbonate alkalinity(CA) and boric(BA) are discussed in this paper.

关 键 词：珠江口 海水 碱度 比碱度 

分 类 号：P733[天文地球—物理海洋学]