文档介绍：Distribution and forms of copper in copper tailings as
influenced by lanthanum and Lolium perenne
*
College of Life Sciences College of Life Sciences
Anhui Normal University Anhui Normal University
Wuhu, China Wuhu, China
Fengchen2yang@ wybzl@
Abstract—The effect of lanthanum and growth of Lolium necessary to evaluate the availability and the capacity of
perenne on the distribution of different forms of copper in copper mobilization of heavy metals in soils[7]. Consequently to
tailings was studied by pot experiments. The results showed that, studies on chemical forms of metals have great significance on
the growth of Lolium perenne on the soil significantly enhanced forecasting critical content as well as their bioavailability and
the copper contents of exchangeable, bined, Fe-Mn toxicity in soil, which can further provide guidance to
bined bined forms of copper agricultural production and practices[8~10].
compared to the control group which without plant cultivation.
While the copper content of the residual form decreased At present the rare earth fertilizer were widely used in
significantly. Compare to the group which without lanthanum, agricultural production, there were many researches on the
the vast majority of copper fraction was residual form, and the biological effects of rare earth fertilizer[11]. There were