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中文摘要：
利用在胶州湾中不同位置取得的3个水样，对溶解有色物质进行了不同时间的光脱色，探讨了有机物含量随脱色时间的变化趋势，得出有机物吸光系数和溶解有机碳随脱色时间的增长而呈指数减小，说明光脱色可以明显降低溶解有机物的含量。对不同光脱色程度的水样进行了光化学降解，测定了其主要产物一氧化碳的光致生成速率，发现在8个不同波段下一氧化碳光致生成速率与350nm的吸光系数和溶解有机碳之间均有良好的线性关系。350nm的吸光系数和溶解有机碳含量在一定程度上均可较好地表示海水中CDOM的含量。
英文摘要：
The effects of content and photobleaching degrees of choromophoric dissolved organic matter were examined based on the photoproduction rates of carbon monoxide for three water samples collected at three different locations in the Jiaozhou Bay in Qingdao. The absorption coefficient of organic compounds and dissolved organic carbon all decreased with increasing time of photobleaching, suggesting that the content of dissolved organic matter significantly decreased through photobleaching. In all eight wave bands, the photoproduction rates of carbon monoxide were significantly correlated with the absorption coefficient at 350 nm and dissolved organic carbon content. Both absorption coefficient at 350 nm and dissolved organic carbon content can represent the contents of chromophoric dissolved organic matter to some extent.
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