稀土元素在环境中的行为及其生态效应

随着稀土元素广泛的开发利用,稀土进入环境中的数量急剧增加.外源稀土进入环境以后必然会通过食物链进入人体、动物体和植物体内,但是到目前为止还没有证据说明稀土是人体的必需元素,因而稀土对生态环境和人体健康的影响是稀土农用必须关注的重点.本文从稀土元素的地球化学特征入手,对稀土在环境中的循环过程及其产生的生态效应进行了研究,为合理的施用稀土微肥提供科学依据.

Ecological Effect and Behavior of REE in Environment

With widely developed and utilized,more and more REE have entered the environment.After that,it will come into the boides of plants,animals and human beings through the food chain.However there is not enough evidence so far to prove REE is the essential element in a human's body.So move attention should be paid to the effect of REE on the environment and human's healch.The recycle of REE and the ecological effect on the evironment were discussed,and the instructive basis of the application of REE manure was made.