Abstract: In this paper, the distribution,accumulation and translocation of rare earth elements(REEs) in soil and spring wheat are studied after foliage dressing with REEs for 12 years. The long term foliage dressing with REEs did not result in the accumulation of REEs in upper and lower soil layers. At maturing stage of spring wheat,the REEs content is in the order of root>leaf>stem and crust. Comparing with control, foliage dressing leads a higher accumulation of REEs in root, but no significant difference is found in stem and crust between these two treatments. The distribution patterns of REEs in root,stem,leaf and crust are similar to that in soil. Long term foliage dressing with REEs did not have an obvious effect on the REEs content of spring wheat grain.

Key words: Rare earth elements, Spring wheat, Distribution, Accumulation and translocation, trophic structure, food web foundation, Haizhou Bay, stable isotope