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Environmental biogeochemical behaviors of rare earth elements in soil-plant systems
Liang, T; Zhang, S; Wang, LJ; Kung, HT; Wang, YQ; Hu, AT; Ding, SM
2005
发表期刊ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
卷号27期号:4页码:#REF!
通讯作者Liang, T (reprint author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China.
文章类型Article
摘要With the continual increase in the utilization of rare earth elements ( REEs) for industrial and agricultural purposes in China, the research into the environmental biogeochemical behavior of REEs has become a pressing issue. The REEs' content in soil and various parts of wheat under different conditions in soil-plant systems were measured by INAA and ICP-MS. The results showed four aspects. ( 1) The mean value of total REEs in soil of China was 176.8 mg kg(-1). The mean ratio of Sigma LREE/Sigma HREE in soils was 8.0 and cerium accounts for 42% of the total REEs. The content of REEs in wheat seed ranged between 10(-11) and 10(-8) g g(-1), 3-4 orders of magnitude lower than that in soil. ( 2) The REEs contents in ryegrass, especially in roots, were significantly related to that of soil. The bioavailability of REEs in soil mainly depended on the exchangeable fraction of REEs, which was strongly affected by the physico-chemical properties of the soil. ( 3) Long-term foliage-dressing with Changle microfertilizer of REEs did not affect the contents and distribution patterns of REEs in soil. At the maturing stage of spring wheat, the REEs content was in the order of root > leaf > stem and crust. Compared with the control, foliage-dressing has a higher accumulation of REEs in root and leaf. However, no significant difference was found in stem and crust between the two treatments. ( 4) There was no significant accumulation with the soil-dressing method. When comparing controls in both foliage-and soil-dressing methods, no distinct residue of REEs in grains was found.
关键词biogeochemical behaviors foliage-dressing rare earth elements residue soil-dressing soil-plant system
学科领域Engineering; Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Water Resources
DOI10.1007/s10653-004-5734-9
收录类别SCI
WOS类目Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources
WOS记录号WOS:000230624800003
引用统计
被引频次:48[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227518
专题多学科研究中心
推荐引用方式
GB/T 7714
Liang, T,Zhang, S,Wang, LJ,et al. Environmental biogeochemical behaviors of rare earth elements in soil-plant systems[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2005,27(4):#REF!.
APA Liang, T.,Zhang, S.,Wang, LJ.,Kung, HT.,Wang, YQ.,...&Ding, SM.(2005).Environmental biogeochemical behaviors of rare earth elements in soil-plant systems.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,27(4),#REF!.
MLA Liang, T,et al."Environmental biogeochemical behaviors of rare earth elements in soil-plant systems".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 27.4(2005):#REF!.
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