杭州湾海水碱度研究  

The Alkalinity of Seawater in Hangzhou Bay

作　　者：李福荣[1] 陈国华[1] 陈景 

机构地区：[1]青岛海洋大学,青岛266003

出　　处：《中国海洋大学学报（自然科学版）》1999年第S1期55-62,共8页Periodical of Ocean University of China

基　　金：国家自然科学基金

摘　　要：用ｐＨ法测定了杭州湾海水的碱度。结果表明，１９９４ 年５ 月份，杭州湾海水在盐度１２ ．０９７～２６ ．３９７ 之间的碱度变化范围为１．５５ ～２．２３ｍｍｏｌ．ｄｍ － ３ ，平均值为１ ．７５７ｍｍｏｌ．ｄｍ － ３ 。相应的比碱度变化范围为０．１０６ ～０ ．３２４，平均值为０．２０２ ． 碱度高值出现在北岸上海石化总厂附近。因受北岸工业废水排放影响，湾内碱度自西北向东南降低。丰水期湾内海水比碱度显著增大，主要受径流的影响。枯水期湾内碱度和比碱度与盐度或氯度呈负相关关系。The alkalinity of water samples in Hangzhou Bay was measured with the method of pH. The results indicate that the variation range of alkalinity is 1.5～ 2.23mmol·dm -3 with an average value of 1.75mmol·dm -3 within the salinity range 12.097～26.397 in May 1994. The variation range of specific alkalinity is 0.106～0.324 with an average value of 0.202. The highest value of alkalinity (2.23mmol·dm -3 ) is found in the proximity area of Shanghai Petro Chemical Works. The horizontal distribution of alkalinity in Hangzhou Bay indicates that the variation of alkalinity is affected by the polluted water discharged from the factory. The influence of river water on the alkalinity in the flood season of Hangzhou Bay is obvious, when the alkalinity increases and the specific alkalinity increases remarkably. The correlation between alkalinity with salinity and chlorinity is negative. A correlation equation is obtained.

关 键 词：杭州湾 碱度 比碱度 河口化学 

分 类 号：P733[天文地球—物理海洋学]