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
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孙彬彬, 曾道明, 刘占元, 周国华, 贺灵
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Variation of modes of occurrence of elements in soil before and after the geo-electrochemical extraction in eolian sand covered area
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Bin-Bin SUN, Dao-Ming ZENG, Zhan-Yuan LIU, Guo-Hua ZHOU, Ling HE
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表2 电提取前后土壤中各元素相态含量均值及比值统计(n=43)
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元素相态 | Au | Ag | As | Bi | Cd | Co | Cr | Cu | La | Mo | Ni | Pb | Sb | Se | Ti | U | Zn | Al | Fe | K | 水溶态 | 前 | 0.063 | 0.274 | 0.195 | 0.304 | 1.59 | 0.006 | 0.186 | 0.043 | 0.005 | 6.83 | 0.079 | 0.074 | 1.94 | 0.008 | 0.370 | 6.77 | 0.052 | 8.88 | 29.3 | 8.05 | | 后 | 0.077 | 0.507 | 0.131 | 0.472 | 2.07 | 0.006 | 0.196 | 0.055 | 0.004 | 6.70 | 0.038 | 0.095 | 3.09 | 0.008 | 0.312 | 4.76 | 0.127 | 9.35 | 31.8 | 8.65 | | 比 | 1.23 | 1.85 | 0.67 | 1.55 | 1.30 | 1.04 | 1.05 | 1.28 | 0.80 | 0.98 | 0.48 | 1.28 | 1.59 | 1.01 | 0.84 | 0.70 | 2.43 | 1.05 | 1.09 | 1.07 | 离子交 换态 | 前 | 0.080 | 0.758 | 0.073 | 0.434 | 5.21 | 0.116 | 0.264 | 0.101 | 0.011 | 11.0 | 0.145 | 0.040 | 1.30 | 0.005 | 0.215 | 7.68 | 0.196 | 10.7 | 4.89 | 95.0 | | 后 | 0.039 | 1.08 | 0.054 | 0.429 | 6.53 | 0.163 | 0.378 | 0.170 | 0.011 | 17.3 | 0.222 | 0.044 | 2.91 | 0.004 | 0.270 | 12.7 | 0.219 | 20.2 | 12.3 | 119 | | 比 | 0.49 | 1.43 | 0.74 | 0.99 | 1.26 | 1.41 | 1.43 | 1.68 | 0.93 | 1.57 | 1.54 | 1.12 | 2.24 | 0.87 | 1.25 | 1.66 | 1.11 | 1.89 | 2.51 | 1.26 | 碳酸盐 结合态 | 前 | 0.067 | 0.378 | 0.057 | 2.28 | 8.82 | 0.036 | 0.607 | 0.168 | 0.383 | 12.6 | 0.272 | 0.339 | 3.32 | 0.003 | 0.528 | 18.2 | 10.0 | 12.9 | 42.5 | 244 | | 后 | 0.073 | 0.434 | 0.042 | 2.95 | 13.9 | 0.048 | 0.752 | 0.214 | 0.579 | 13.8 | 0.377 | 0.465 | 4.50 | 0.002 | 0.793 | 28.5 | 6.97 | 19.4 | 10.5 | 278 | | 比 | 1.10 | 1.15 | 0.75 | 1.29 | 1.58 | 1.35 | 1.24 | 1.27 | 1.51 | 1.09 | 1.39 | 1.37 | 1.35 | 0.70 | 1.50 | 1.56 | 0.69 | 1.50 | 0.25 | 1.14 | 腐殖酸 结合态 | 前 | 0.206 | 0.654 | 0.127 | 6.03 | 7.33 | 0.623 | 0.285 | 0.619 | 2.30 | 37.5 | 0.546 | 0.78 | 15.2 | 0.003 | 50.4 | 42.3 | 3.72 | 220 | 206 | 67.4 | | 后 | 0.193 | 1.05 | 0.131 | 7.51 | 10.6 | 0.745 | 0.228 | 1.10 | 2.79 | 25.7 | 0.744 | 1.1 | 22.2 | 0.013 | 54.4 | 52.8 | 5.89 | 220 | 202 | 67.0 | | 比 | 0.94 | 1.61 | 1.03 | 1.25 | 1.44 | 1.20 | 0.80 | 1.78 | 1.21 | 0.68 | 1.36 | 1.42 | 1.46 | 4.18 | 1.08 | 1.25 | 1.58 | 1.00 | 0.98 | 1.00 | 铁锰氧 化物结 合态 | 前 | 0.120 | 8.28 | 0.339 | 6.11 | 7.30 | 1.21 | 1.21 | 0.500 | 1.63 | 5.04 | 2.21 | 2.25 | 3.93 | 0.012 | 6.46 | 20.6 | 2.00 | 1342 | 573 | 164 | | 后 | 0.082 | 13.3 | 0.291 | 8.56 | 12.0 | 1.58 | 1.39 | 0.715 | 2.09 | 11.4 | 2.99 | 3.33 | 5.20 | 0.011 | 7.63 | 35.6 | 3.13 | 1497 | 682 | 183 | | 比 | 0.68 | 1.60 | 0.86 | 1.40 | 1.65 | 1.30 | 1.15 | 1.43 | 1.28 | 2.27 | 1.35 | 1.48 | 1.32 | 0.89 | 1.18 | 1.73 | 1.56 | 1.11 | 1.19 | 1.12 | 强有机 结合态 | 前 | 0.467 | 4.00 | 0.074 | 11.9 | 3.79 | 0.488 | 2.27 | 0.690 | 0.601 | 38.1 | 1.48 | 1.15 | 13.7 | 0.023 | 40.7 | 34.4 | 1.40 | 966 | 530 | 183 | | 后 | 0.391 | 6.74 | 0.053 | 17.5 | 5.01 | 0.561 | 2.25 | 0.819 | 0.725 | 36.9 | 1.66 | 1.36 | 11.9 | 0.021 | 40.8 | 38.2 | 2.10 | 926 | 457 | 176 | | 比 | 0.84 | 1.69 | 0.72 | 1.47 | 1.32 | 1.15 | 0.99 | 1.19 | 1.21 | 0.97 | 1.12 | 1.18 | 0.87 | 0.89 | 1.00 | 1.11 | 1.50 | 0.96 | 0.86 | 0.96 | 残渣态 | 前 | 10.4 | 48.2 | 6.49 | 145 | 42.1 | 2.37 | 21.7 | 6.71 | 11.7 | 269 | 6.42 | 13.5 | 443 | 0.052 | 2235 | 920 | 14.5 | 47096 | 12664 | 20426 | | 后 | 9.27 | 61.7 | 7.33 | 181 | 48.9 | 2.58 | 21.7 | 7.81 | 12.5 | 328 | 7.08 | 15.1 | 509 | 0.061 | 2282 | 1026 | 19.4 | 45855 | 12720 | 20382 | | 比 | 0.89 | 1.28 | 1.13 | 1.25 | 1.16 | 1.09 | 1.00 | 1.17 | 1.07 | 1.22 | 1.10 | 1.12 | 1.15 | 1.17 | 1.02 | 1.12 | 1.34 | 0.97 | 1.00 | 1.00 |
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