湘江流域土壤重金属元素地球化学背景值与基准值研究
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鲁江, 朱丽芬, 骆检兰, 刘显丽
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Geochemical background and baseline values of heavy metals in soils in the Xiangjiang River Basin
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LU Jiang, ZHU Li-Fen, LUO Jian-Lan, LIU Xian-Li
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表7 湘江流域地层单元土壤地球化学基准值和背景值
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Table 7 Soil reference value and background value of stratigraphic unitsub-area in Xiangjiang River Basin
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| 第四系 | 古近系 | 白垩系 | 侏罗系 | 三叠系 | 二叠系 | 石炭系 | 泥盆系 | 志留系 | 奥陶系 | 寒武系 | 震旦系 | 样本 数 | 背景值/10-6 | 597 | 140 | 2317 | 781 | 813 | 1848 | 1735 | 5639 | 614 | 837 | 763 | 460 | | 基准值/10-6 | 148 | 34 | 571 | 197 | 205 | 456 | 399 | 1385 | 153 | 207 | 187 | 115 | | As | 背景值/10-6 | 15.15 | 16.09 | 10.50 | 10.27 | 10.64 | 13.60 | 17.79 | 14.60 | 10.50 | 9.38 | 14.90 | 13.90 | | 基准值/10-6 | 14.25 | 13.43 | 9.76 | 10.77 | 8.80 | 12.83 | 17.40 | 15.04 | 10.44 | 10.97 | 15.03 | 15.76 | | 比值 | 1.06 | 1.20 | 1.08 | 0.95 | 1.21 | 1.06 | 1.02 | 0.97 | 1.01 | 0.86 | 0.99 | 0.88 | | Cd | 背景值/10-6 | 0.40 | 0.41 | 0.39 | 0.28 | 0.34 | 0.42 | 0.48 | 0.38 | 0.25 | 0.24 | 0.24 | 0.22 | | 基准值/10-6 | 0.09 | 0.10 | 0.13 | 0.11 | 0.13 | 0.13 | 0.21 | 0.16 | 0.12 | 0.12 | 0.13 | 0.11 | | 比值 | 4.44 | 4.10 | 3.00 | 2.55 | 2.54 | 3.23 | 2.29 | 2.41 | 2.08 | 2.00 | 1.85 | 1.94 | | Cr | 背景值/10-6 | 89.00 | 79.60 | 72.60 | 40.00 | 56.50 | 91.00 | 97.70 | 79.70 | 53.00 | 69.60 | 78.00 | 82.70 | | 基准值/10-6 | 83.00 | 74.90 | 70.20 | 44.60 | 53.15 | 87.00 | 89.00 | 81.00 | 57.00 | 73.70 | 79.00 | 89.00 | | 比值 | 1.07 | 1.06 | 1.03 | 0.90 | 1.06 | 1.05 | 1.10 | 0.98 | 0.93 | 0.94 | 0.99 | 0.93 | | Cu | 背景值/10-6 | 28.50 | 31.55 | 28.93 | 20.20 | 26.80 | 35.80 | 31.60 | 28.70 | 24.00 | 27.20 | 30.30 | 32.00 | | 基准值/10-6 | 23.70 | 23.60 | 23.80 | 17.00 | 21.00 | 28.00 | 26.30 | 27.00 | 22.40 | 27.00 | 28.80 | 31.80 | | 比值 | 1.20 | 1.34 | 1.22 | 1.19 | 1.28 | 1.28 | 1.20 | 1.06 | 1.07 | 1.01 | 1.05 | 1.01 | | Hg | 背景值/10-6 | 0.13 | 0.12 | 0.10 | 0.11 | 0.11 | 0.14 | 0.17 | 0.15 | 0.10 | 0.11 | 0.13 | 0.14 | | 基准值/10-6 | 0.06 | 0.06 | 0.06 | 0.08 | 0.08 | 0.08 | 0.13 | 0.12 | 0.08 | 0.09 | 0.12 | 0.11 | | 比值 | 2.10 | 1.86 | 1.67 | 1.38 | 1.49 | 1.71 | 1.34 | 1.30 | 1.26 | 1.23 | 1.16 | 1.19 | | Ni | 背景值/10-6 | 28.10 | 26.10 | 25.10 | 14.00 | 20.30 | 31.20 | 33.98 | 28.50 | 22.16 | 28.94 | 30.53 | 32.20 | | 基准值/10-6 | 27.60 | 25.80 | 24.80 | 16.30 | 20.10 | 32.10 | 34.80 | 31.60 | 23.63 | 31.39 | 31.70 | 34.05 | | 比值 | 1.02 | 1.01 | 1.01 | 0.86 | 1.01 | 0.97 | 0.98 | 0.90 | 0.94 | 0.92 | 0.96 | 0.95 | | Pb | 背景值/10-6 | 38.20 | 38.50 | 36.00 | 56.70 | 49.25 | 40.10 | 40.50 | 39.50 | 49.00 | 36.40 | 39.00 | 34.00 | | 基准值/10-6 | 28.70 | 27.50 | 26.30 | 44.40 | 39.20 | 28.40 | 32.00 | 32.00 | 39.40 | 31.55 | 32.80 | 30.00 | | 比值 | 1.33 | 1.40 | 1.37 | 1.28 | 1.26 | 1.41 | 1.27 | 1.23 | 1.24 | 1.15 | 1.19 | 1.13 | | Zn | 背景值/10-6 | 88.00 | 89.00 | 82.00 | 88.00 | 95.00 | 94.00 | 104.0 | 93.00 | 86.00 | 88.00 | 88.00 | 83.00 | | 基准值/10-6 | 74.00 | 64.00 | 67.00 | 78.00 | 82.00 | 81.00 | 92.00 | 87.00 | 79.00 | 87.00 | 88.00 | 84.00 | | 比值 | 1.19 | 1.39 | 1.22 | 1.13 | 1.16 | 1.16 | 1.13 | 1.07 | 1.09 | 1.01 | 1.00 | 0.99 | | pH | 背景值 | 5.78 | 6.25 | 6.19 | 5.26 | 5.41 | 5.47 | 7.19 | 6.39 | 5.13 | 4.98 | 5.01 | 5.00 | | 基准值 | 6.51 | 6.94 | 7.01 | 5.95 | 6.36 | 6.63 | 7.51 | 7.02 | 5.50 | 5.43 | 5.34 | 5.37 | | 比值 | 0.89 | 0.90 | 0.88 | 0.88 | 0.85 | 0.83 | 0.96 | 0.91 | 0.93 | 0.92 | 0.94 | 0.93 |
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