1Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an, Shaanxi, 710075, China
2Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co, Ltd., Xi’an, Shaanxi, 710075, China
3Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Natural Resources, Xi’an, Shaanxi, 710075, China
4Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xi’an, Shaanxi, 710075, China
5Land Engineering Technology Innovation Center, Ministry of Natural Resources, Xi’an, Shaanxi, 710075, China
6Land Engineering Quality Testing of Shaanxi Land Engineering Construction Group Co, Ltd., Xi’an, Shaanxi, 710075, China
Iron is an essential element for plant life activities, and is deeply involved in the material cycle of plant-water-soil. Therefore, it is necessary to understand the iron isotope behavior and fractionation law of iron in the cycle of plant-water-soil, to trace the migration and circulation of iron in the surface biosphere, and to trace the relationship between the biosphere where plants are located and the various plastids in nature. Issues such as interaction play an important role. This paper summarizes the representation methods and basic storage information of iron isotopes, and summarizes two different strategies for absorbing iron from soils and their characteristics of iron isotope fractionation. The results showed that when strategy I plants absorb iron, they will reduce ferric iron first, and absorb light iron isotopes preferentially; while strategy II plants absorb iron after chelating iron without obvious fractionation; some plants can have two iron isotopes at the same time. an absorption mechanism. Iron isotopes have great application potential in the research on the absorption mechanism of iron by plants, and may also have great prospects in future research scenarios such as iron transport in plants and iron distribution in tissues and organs.
Iron isotopes, Plants, Strategy I, Strategy II
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