@article{oai:repo.qst.go.jp:00046821,
 author = {V., Perelomov L. and S., Asainova Zh. and Yoshida, Satoshi and V., Ivanov I. and 吉田 聡},
 issue = {10},
 journal = {Eurasian Soil Science},
 month = {Oct},
 note = {The concentrations of rare-earth elements were studied in the profiles of soddy podburs and mucky-humus gley soils. The soil horizons differed significantly in the contents of Corg (0-26%), the physical clay (<0.01 mm) fraction (3-31%), the acidity (pH 4 to 5.5), and the presence/absence of Al-Fe-humus accumulations. The most significant relationship was observed between the concentrations of rare-earth elements and the physical clay content, particularly for Nd: x(Nd, mg/kg) = 7 + 1.6y (fraction <0.01 mm, %). Weak biogenic accumulations in the upper horizons were observed for Nd, Ce, and Dy; Nd, Pr, and La accumulated in the Al-Fe-humus illuvial horizon. The concentrations of rare-earth elements in the studied soils formed the following sequence (mg/kg): Nd (20-101)-Ce (10-44)-La, Sm, Gd, Dy, Yb (3-20)-Pr (1-4)-Ho (0.1-0.4)-Tm, Lu, and Tl (0.0). A clear trend was observed to higher contents of even-numbered elements as compared with odd-numbered elements, excluding La.},
 pages = {983--994},
 title = {Concentrations of Rare-Earth Elements in Soils of the Prioksko-Terrasnyi State Biospheric Reserve},
 volume = {45},
 year = {2012}
}