稀土农用对环境的影响

稀土在我国工业、农业应用中已有几十年的历史,人们对稀土在农作物上的增长作用及机理已逐渐了解,其在农用上的应用也越来越广泛,对环境的影响亦逐渐引起人们的关注。文章从稀土元素在环境中的含量、毒性特点、辐射水平、残留量等方面分析讨论了稀土农用对环境的影响。现有研究结果表明:稀土微肥在现行施用量的条件下,对人体健康是安全的,不会对环境、水体、农田生态环境造成污染。

ENVIRONMENTAL IMPACT OF REE APPLICATION TO AGRICULTURE

The rare-earth elements (REE) have been applied to agriculture and industry for a long time. It has been realized that the REEs play an important role in agricultural production increase. The REEs have been found wide applications in agriculture. More concern is shown with the impact of REE on the environment. The aim of this paper is to analyze and discuss the potential environment impact of REE on agricultural products and arable soils, in terms of REE concentrations, toxicities, radiation levels, and remnant contents. The research results showed that the current application of the REE-added fertilizers is safe to human health, and has no potential environmental impact on the environment, water quality and agro-ecological environment.