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南海北部沉降颗粒氨基酸通量及生物地球化学意义

, PP. 57-64

Keywords: 沉降颗粒,氨基酸通量,氨基酸组合意义

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Abstract:

对1987年9月到1988年10月放置于南海北部的3套沉积物捕获器样品(共39个)进行了氨基酸通量及组成的研究.氨基酸通量与总通量的变化一致,均呈现季节性的不同,并与南海季风有显着关系.氨基酸组合特征及季节性变化指示沉降颗粒有机物质主要来源于海洋浮游生物,其中浅层捕获器浮游植物为主要来源,而深层则浮游动物的贡献大.颗粒物质存在着快速沉降的机制,表明由南海季风气候控制的海洋真光层季节性的物理、化学条件变化引起的生物响应,一定程度上控制着海洋颗粒物质的产生、传输和沉积.

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