浮游生物对某些化学物质在海洋微表层中富集所起的作用

本文综合分析了浮游生物对有机物、痕量金属、氮磷营养盐在海洋微表层中富集所起的作用。浮游植物和部分浮游细菌释放的溶解有机物大部分具有表面活性且能与痕量金属络合,它们能靠Gibbs吸附富集于微表层,并促成与络合的痕量金属的富集。浮游细菌对微表层中富集的含氮和含磷有机物的分解可能是促成氮磷营养盐在微表层中富集的重要原因。

EFFECTS OF PLANKTON ON THE ENRICHMENT OF SOME CHEMICAL SUBSTANCES IN THE SEA SURFACE MICROLAYER

The effects of plankton on the enrichment of organic matter, trace metals,nitrogenous and phosphoric nutritious salts in the sea surface microlayer are analyzed comprehensively. Most of the DOM released by phytoplankton and somebacterioplankton is surface active and can complex with trace metals, which can be enriched in the microlayer by Gibbs adsorption making the complexed tracemetals enriched. The decomposition of nitrogenous and phosphoric organic substances by bacterioplankton is probably an important reason for the enrichment of nitrogenous and phosphoric nutritious salts.