黄河口泥沙和磷的环境行为研究进展

Research Progress on Environmental Behavior of Sediment and Phosphorus in the Yellow River Estuary

河口是陆地和海洋环境之间物质流动的重要界面,具有独特的生物地球化学变化特征。河口海岸带生物地球化学条件的剧烈变化会改变入海泥沙和磷复杂的迁移和转化行为过程。黄河是全球主要的含沙河流,深入分析总结河口泥沙和磷的迁移和累积规律,对提高黄河口生态环境质量变化评估和生态修复具有重要的实际意义。文章从新兴文献计量学和传统文献分析2个角度,首先聚焦了全球河口污染物研究热点,对比分析了世界河口泥沙和磷的分布特征;其次归纳了黄河口泥沙沉积及历史反演的研究进展,总结了生物地球化学条件变化(包括盐度、pH、溶解氧、氧化还原条件等)对泥沙和磷迁移转化的影响和规律;最后浅析了当前河口水质模型的研究现状和不确定性,并针对目前研究的不足,提出了未来分析和揭示河口泥沙和磷环境行为的重点。

The estuary represents a crucial interface for the flux of water and matter between the continent and the ocean,due to its unique biogeochemical properties.The dramatic change of biogeochemical conditions in the estuarine zone will alter the complex migration and transformation of sediment and phosphorus into the sea.The Yellow River is a major sediment-laden river in the world.In-depth analysis and summary of sediment and phosphorus migration and accumulation in the estuary is of great practical significance to improve the assessment of ecological environmental quality changes and ecological restoration in the Yellow River Estuary(YRE).Firstly,from the perspective of new and traditional bibliometrics,the global research hotspots of estuarine pollutants and the distribution properties of sediment and phosphorus in estuaries around the world are focused and analyzed.Secondly,the research progress of sediment deposition and historical inversion in the YRE was summarized,and the influence of biogeochemical conditions(including salinity,pH,dissolved oxygen,redox conditions,etc.)on sediment and phosphorus migration and transformation was summarized.Finally,the status and uncertainties of estuarine water quality models are analyzed.In view of the deficiencies of current studies,the emphasis of future analysis and revealing of environmental behaviors of sediment and phosphorus inestuaries isputforward.