Characteristics of the Organic Matter in Tidalvers Guangzhou

Key words: 
• tlidal action /
• bottom sediments /
• ongame matter /
• Guangzhou

Abstract: The hydrological character and water quality of the Pearler in Guangou are greatly affected bytidal action. In the Pearl River the west channel and the Liuxi river, as main water sources inGuangzhou, are in the upstream of the urban city of Guangzhou, and their water quality is greatly dete-riorated by the heavily polluted water going upstream from down stream due to tidal action, so it is ofgreat importance to investigate in what degree and in what range the source water quality is influencedby tidal action for the purpose of the protection and utilization of water resources. This paper carried outanalyses of the organic matter in bottom sediments from down stream to upstream in the water sourcearea, and was a biomarker approach to the influence of tidal action, the results revealed that tidal actionhas little influence on the water quality in the upstream of Yagang; but in Xicen and Shimen, there ex-fists obvious influence of tidal action on the water body, organic matter is caracterized by sources frompollution by human activities. The study also indicated that principles and methods organic geochemistry could be applied to the study on hydrological features and water quality in the river system.