Analyses of Soil Cadmium and Copper Contents on a Region of Burgundy in France
2000
Kim Sangdeog A. Joongbu University, Kumsan-gun (Korea Republic) Alain Bermond Institut National Agronomique Paris-Grignon (INA P-G), Paris, France
The aim of present research was to know Cd availability. As a first report of this work, we present some results of analysing soil Cd and Cu contents on a part of Burgundy in France. Soil samples were collected from surface-ploughed layer in fields across the southern part of the Yonne district, Burgundy, France. From the first extractable Cd content on a ratio (soil:EDTA=1:10), the soil Cd values on carixien soil series decreased to a-third or to a-fourth of those Cd values on a lower ratio (soil:EDTA=1:5). While the extractable Cd of the soil samples on Sols marron soil series decreased in a smaller extent. The changes of mixing ratio from 1:50 (soil:EDTA) to 1:10 and to 1:5 (soil:EDTA) had decreased the extractable Cu contents. But the range of the decrease was not so large as that of Cd contents. Soils on some soil series were a half (Carixien) or two-thirds level (Domerien, Aubes) when comparing the extractable Cu content on 1:5 ratio to the content on 1:50 ratio. The absorbance for Cu analyses of soils on Carixien, Terres noires, Sols marron soil series varied in larger extent (expressed on standard deviation for 6 values) than that of soils on Domerien, Aubes soil series.
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