稀土元素的环境生物地球化学研究现状与展望

An Overview And Prospect On The Study of Biogeochemical For Rare Earth Elements( REEs)

对稀土元素在工农业上的研究进展及稀土元素与风化成土过程、土壤、水体和植被的研究作了一系列总结,并对稀土元素在上述领域的发展趋势做了简单的说明.随着人类活动对稀土元素研究开发的深入,稀土元素已经日益深刻的影响到人类的生产生活,并引起社会的广大关注.稀土元素示踪技术对土壤坡面侵蚀过程和沉积物来源具有指示作用.稀土元素在古生物事件中起一定作用.地质方面,最新研究表明稀土元素能为找矿提供有益信息,并且在探讨矿产成因与矿产成矿机制等问题上提供了新途径.稀土元素的存在形态是生物利用性和生态环境效应的重要参数.最近国际国内对水中稀土元素已做了广泛研究,河流、湖泊和海洋中稀土分布受水体的化学参量(如PH值、有机质等)和水化学过程影响,含量高低与人类活动直接相关,天然水中稀土元素主要来源于土壤及岩石中稀土的溶出.稀土元素对植被影响表现在不同地区不同植被会有所不同.

This paper will make a series of research summaries which focus on the process of rare earth elements and weathering pedogenesis process,soil,water and vegetation, as well as the research progress of rare earth elements in industry and agriculture, and make a simple description of the trends in these areas. With the deepening of human activity on the research and development of rare earth elements, rare earth elements have increasingly profound effects on human life and have aroused wide attention. Tracer technology of rare earth elements has indicative function on slope surface erosion processes and sediment source. Rare earth elements plays a role in the paleontological incident. In terms of geology, recent study shows that rare earth elements can provide useful information for prospecting, and new ways to explore mineral resources on the causes and issues of mineral ore- forming mechanism. Existing form of rare earth elements are the important parameters of biological availability and ecological environment effects. Extensive research has already been done recently at home and abroad. The distribution of rare earth elements in rivers,lakes and oceans are influenced by water chemistry parameters （such as PH, organic matter , and so on） and hydrochemical process. The quality of the content is related to human activities. Rare earth elements in natural water mainly come from the dissolution of rare earth elements in soil and rocks. The influence of rare earth elements on vegetation is that vegetation varies in different regions.