Distribution,accumulation and transportation of rare earth elements in soil-Dicranopteris linearis system at South Jiangxi
稀土元素在赣南非稀土矿区和不同稀土矿区土壤-铁芒萁(Dicranopteris linearis)系统中的分布、累积和迁移

The contents of 15 REEs in soils and Dicranopteris linearis, which were obtained from 4 rare earth mining areas and 1 non mining area located in the south of Jiangxi Province,have been determined by ICP MS.The distribution patterns and transportation characteristics of REEs of different soil profiles and different parts of Dicranopteris linearis were studied.The results showed that in the soil profiles,the REEs contents of the C layer were the highest,but Ce was relatively concentrated in the A layer.The REEs contents of different parts of Dicranopteris linearis were leaf,root>stem>leaf stalk.The REEs distribution patterns of Dicranopteris linearis root was similar with the patterns of the A layer of their host soils,especially with the soluble REEs distribution patterns of the A layer of their host soils.The REEs were obviously fractionated in their transportation procedure in Dicranopteris linearis, HREEs in the stem,leaf stalk,leaf were depletion.