Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
Environ Geochem Health. 2024 Jul 29;46(9):341. doi: 10.1007/s10653-024-02126-9.
Selenium (Se) has a dual nature, with beneficial and harmful effects on plants, essential for both humans and animals, playing a crucial role in ecosystem regulation. Insufficient Se in specific terrestrial environments raises concerns due to its potential to cause diseases, while excess Se can lead to severe toxicity. Thus, maintaining an optimal Se level is essential for living organisms. This review focuses first on Se transformation, speciation, and geochemical properties in soil, and then provides a concise overview of Se distribution in Chinese soil and crops, with a focus on the relationship between soil Se levels and parent materials. Additionally, this paper explores Se bioavailability, considering parent materials and soil physicochemical properties, using partial least squares path modeling for analysis. This paper aimed to be a valuable resource for effectively managing Se-enriched soil resources, contributing to a better understanding of Se role in ecosystems.
硒（Se）具有双重性质，对植物既有有益影响又有有害影响，对人类和动物都是必需的，在生态系统调节中起着关键作用。特定陆地环境中硒不足会引起人们的关注，因为它可能导致疾病，而过量的硒则会导致严重的毒性。因此，维持生物体的最佳硒水平至关重要。本综述首先关注土壤中硒的转化、形态和地球化学特性，然后简要概述中国土壤和作物中的硒分布，重点关注土壤硒水平与母质的关系。此外，本文还探讨了硒的生物可利用性，考虑了母质和土壤物理化学特性，并使用偏最小二乘路径模型进行分析。本文旨在为有效管理富硒土壤资源提供有价值的信息，帮助更好地理解硒在生态系统中的作用。
