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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Signature of terrestrial influence on nitrogen isotopic composition ofsuspended particulate matter in the Bay of Bengal
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Signature of terrestrial influence on nitrogen isotopic composition ofsuspended particulate matter in the Bay of Bengal

机译：地面对孟加拉湾悬浮颗粒物氮同位素组成的影响

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摘要

Nitrogen concentration and its isotopic composition in surface suspended matter have been measured at 24 different locations during the post-monsoon season in the Bay of Bengal. In general, the stable nitrogen isotopic composition of surface particulate organic nitrogen (PON) in the Bay of Bengal appears to be a mixture of particulate matter from the continent and marine phytoplankton, the latter having inherited the isotopic composition of deeper nitrate. Higher delta super(15)N values of surface PON in open ocean locations could be due to the supply of nitrate with higher delta super(15)N values. However, offshore locations have been diluted by the continental influence leading to low delta super(15)N values in PON.
机译：在孟加拉湾的季风后季节期间，已在24个不同的位置测量了表面悬浮物中的氮浓度及其同位素组成。通常，孟加拉湾表面颗粒有机氮（PON）的稳定氮同位素组成似乎是大陆和海洋浮游植物的颗粒物混合物，后者已继承了深硝酸盐的同位素组成。在公海位置，表面PON的delta super（15）N值较高，可能是由于硝酸盐供应的delta super（15）N值较高。但是，近海位置已被大陆影响所稀释，导致PON中的delta super（15）N值较低。

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