风成砂覆盖区地电化学提取前后土壤中元素赋存状态变化研究

孙彬彬, 曾道明, 刘占元, 周国华, 贺灵

Variation of modes of occurrence of elements in soil before and after the geo-electrochemical extraction in eolian sand covered area

Bin-Bin SUN, Dao-Ming ZENG, Zhan-Yuan LIU, Guo-Hua ZHOU, Ling HE

表1 电提取前后土壤中各元素含量均值及比值统计(n=43)

元素 Au Ag As Bi Cd Co Cr Cu La Mo w前 0.73 62.9 7.76 0.176 77.5 4.96 27.5 8.96 17.2 0.390 w后 0.65 84.1 8.17 0.231 102.1 6.06 28.4 11.5 20.4 0.472 w后/w前 0.90 1.34 1.05 1.31 1.32 1.22 1.03 1.28 1.18 1.21 元素 Ni Pb Sb Se Ti U Zn Al2O3 Fe2O3 K2O w前 11.4 18.4 0.479 0.116 2549 1.08 31.7 9.37 2.07 2.54 w后 14.3 23.4 0.579 0.130 2588 1.30 38.6 9.17 2.15 2.62 w后/w前 1.25 1.27 1.21 1.12 1.02 1.20 1.22 0.98 1.04 1.03