A review of fractionations of rare earth elements in plants
来源期刊：Journal of Rare Earths2008年第1期
论文作者：梁涛 丁士明 宋文冲 崇忠义
文章页码：7 - 15
摘 要：Studies were carried out on several aspects of rare earth elements （REEs）, such as the theory and practice of their applications in agriculture, their geochemical behaviors in natural and agricultural ecosystems, the mechanisms for the increase of crop yield using REE fer- tilizer, and their toxicology. However, limited knowledge was available for the transfer processes and the features and mechanisms of distri- bution and fractionations of REEs inside plants. The characteristics of REE fractionations in plants can be used to "trace" the pathway of REE transportation from soils （solution） to plants. A better understanding of the mechanisms of REE fractionations was helpful to investigate the controlling factors, including both the internal and the external ones. The characteristics and mechanisms of REE fractionations in plants and their significance were reviewed. Furthermore, the prospect for these fields was discussed, in hope of providing a new way in studying the bioavailability of REEs and heavy metals.
梁涛1，丁士明2，宋文冲1，崇忠义1
1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences2. Nanjing Institute of Geography & Lim-nology, Chinese Academy of Sciences
摘 要：Studies were carried out on several aspects of rare earth elements （REEs）, such as the theory and practice of their applications in agriculture, their geochemical behaviors in natural and agricultural ecosystems, the mechanisms for the increase of crop yield using REE fer- tilizer, and their toxicology. However, limited knowledge was available for the transfer processes and the features and mechanisms of distri- bution and fractionations of REEs inside plants. The characteristics of REE fractionations in plants can be used to "trace" the pathway of REE transportation from soils （solution） to plants. A better understanding of the mechanisms of REE fractionations was helpful to investigate the controlling factors, including both the internal and the external ones. The characteristics and mechanisms of REE fractionations in plants and their significance were reviewed. Furthermore, the prospect for these fields was discussed, in hope of providing a new way in studying the bioavailability of REEs and heavy metals.
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