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Evaluation on the Fate of Cd in Soil and Plant by using Stable Isotope Methodology  

Yun, Sun-Gang (National Institute of Agricultural Science and Technology, RDA)
Jung, Gu-Bok (National Institute of Agricultural Science and Technology, RDA.)
Kim, Won-Il (National Institute of Agricultural Science and Technology, RDA.)
Lee, Jong-Sik (National Institute of Agricultural Science and Technology, RDA.)
Kim, Min-Kyeong (National Institute of Agricultural Science and Technology, RDA.)
Kim, Jin-Ho (National Institute of Agricultural Science and Technology, RDA.)
Shin, Joong-Du (National Institute of Agricultural Science and Technology, RDA.)
Lee, Deog-Bae (National Institute of Agricultural Science and Technology, RDA.)
Kim, Sam-Cwan (National Institute of Agricultural Science and Technology, RDA.)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.41, no.3, 2008 , pp. 223-227 More about this Journal
Abstract
This experiment was conducted to describe the distribution of stable isotope Cd in the mine tailing and uncultivated soils derived from different parent rocks (Igneous rock, Metamorphic rock, and Sedimentary rock) as well as the movement of Cd isotopes from soil to plants, soybean and pepper. The results showed that there was no significant difference in isotopic ratios in soil among the eight kinds of stable isotope of Cd. However the relationship among isotopic ratios of stable isotope of Cd in soils were classified to four types, linear type between $Cd^{106}/Cd^{111}$ and $Cd^{108}/Cd^{111}$, quadratic type between $Cd^{114}/Cd^{108}$ and $Cd^{111}/Cd^{110}$, reverse quadratic type between $Cd^{110}/Cd^{116}$ and $Cd^{108}/Cd^{116}$, and cluster type between $Cd^{110}/Cd^{113}$ and $Cd^{116}/Cd^{113}$. While the individual stable isotopes of Cd in root were remained except on the plot of pepper without mine tailing application. $Cd^{116}$, $Cd^{114}$, and $Cd^{112}$ played active roles among other stable isotopic Cds in bean and red pepper, and $Cd^{116}$ was ranked the highest abundance ratio. Contrary to crop itself, the abundance ratios of $Cd^{116}$ in bean and read pepper roots were decreased, and the ones of other Cds were relatively increased.
Keywords
Cd; Stable isotope; Mine tailing; Pepper; Soybean;
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