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河口硅酸盐物理化学过程研究——Ⅳ、河口活性硅转移机理的分析

, PP. 43-56

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Abstract:

河水带下较多量的溶解硅酸盐(用“硅钼黄法”测出量称为“活性硅”),在河口处与海水混合过程中,溶解硅酸盐有没有一部分转移到非溶解相?是生物吸收转移为主还是无机化学转移为主?最后转移形成什么物质并归宿到何处?有多大部分重新参加硅的地球化学循环?如何循环?这些过程搞清楚,对研究硅在海洋中的地球化学、河口及近海海底沉积的形成与性质、港湾的淤积与变迁、生物的初级生产力以及河口各种水化学特征(进而涉及到河口各种污染物质的分布转移机理),都会有所帮助.它们一直是近十几年来国际上海洋化学工作者所注意的问题之一,然而直到现在仍然争论不休,没有取得一致见解.

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