【摘要】 随着稀土的大规模使用 ,天然水体中的稀土积累越来越多 ,稀土对水生态体系的影响引起了人们的广泛关注。本文模拟稀土镧积累的水体环境 ,研究此种情况对塔玛亚历山大藻生长的影响 ,结果显示低浓度镧的积累对塔玛亚历山大藻的生长有促进作用 ,并呈一定的时间、剂量效应关系。更多还原

【Abstract】 With the wide use of rare earth,more and more rare earth accumulate in natural water,so the effect of rare earth on water environment has moved into the spotlight in bioinorganic chemistry of rare earth.This paper simulates water environment,under which lanthanum accumulates,to aim at studying the effect of lanthanum-accumulating environment on growth of alexandrium tamarense,which may excrete paralytic sellfish poisons.The result shows that the accumulation of lanthanum has an active effect on growth of alexandrium tamarense in dose dependent manners,moreover,the longer time algae grow,the more apparent the active effect is.更多还原