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溶解有机物对控制海洋和淡水水生系统的化学、生物和物理特性有重要的影响.光化学降解溶解有机物改变了生态体系的溶解有机碳、有机物的分子量及光学特性,并且产生复杂的反应性氧化合物、二氧化碳、一氧化碳、小分子量的有机酸、氨基酸、二硫化碳等,对生物过程有重要的影响.本文简要综述了光化学降解溶解有机物的过程机理及其对生物过程的影响.
Dissolved organic matter plays an important role in controlling the chemical, biological and physical properties of marine and freshwater aquatic systems Photochemical degradation of dissolved organic matter alters the molecular weight and optical properties of dissolved organic carbon and organic matter in ecosystems and produces complex reactive oxygen species, Carbon dioxide, carbon monoxide, small molecular weight organic acids, amino acids, carbon disulfide and so on, have an important impact on the biological processes.In this paper, the photochemical degradation of dissolved organic matter process mechanism and its impact on biological processes.