基于大数据的中国土壤背景值与基准值及其变化特征研究——写在《中国土壤地球化学参数》出版之际
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奚小环, 侯青叶, 杨忠芳, 叶家瑜, 余涛, 夏学齐, 成杭新, 周国华, 姚岚
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Big data based studies of the variation features of Chinese soil’s background value versus reference value: A paper written on the occasion of Soil Geochemical Parameters of China’s publication
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XI Xiao-Huan, HOU Qing-Ye, YANG Zhong-Fang, YE Jia-Yu, YU Tao, XIA Xue-Qi, CHENG Hang-Xin, ZHOU Guo-Hua, YAO Lan
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表5 中国土壤地球化学背景值
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Table 5 Geochemical background value of soil in China
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指标 | 含量 单位 | 土壤第一环境 | 土壤第二环境 | 原始数据 (n=95588) | 剔除异常值数据 (n=95471~77535) | 原始数据 (n=376743) | 剔除异常值数据 (n=375854~312184) | | | 平均值 | 标准差 | 变异系数 | 平均值 | 标准差 | 变异系数 | 平均值 | 标准差 | 变异系数 | 平均值 | 标准差 | 变异系数 | Ag | 10-9 | 250 | 3713 | 14.8 | 66 | 17 | 0.3 | 297 | 4216 | 14.2 | 74 | 20 | 0.3 | As | 10-6 | 10.8 | 12.9 | 1.2 | 9.5 | 3.9 | 0.4 | 10.3 | 14.5 | 1.4 | 9.1 | 3.7 | 0.4 | Au | 10-9 | 1.7 | 2.5 | 1.5 | 1.5 | 0.5 | 0.4 | 2.0 | 7.0 | 3.5 | 1.6 | 0.6 | 0.4 | B | 10-6 | 50 | 26 | 0.5 | 48 | 19 | 0.4 | 51 | 29 | 0.6 | 48 | 20 | 0.4 | Ba | 10-6 | 518 | 196 | 0.4 | 512 | 113 | 0.2 | 510 | 253 | 0.5 | 504 | 117 | 0.2 | Be | 10-6 | 2.2 | 0.8 | 0.4 | 2.1 | 0.5 | 0.2 | 2.1 | 0.8 | 0.4 | 2.0 | 0.4 | 0.2 | Bi | 10-6 | 0.40 | 1.60 | 4.0 | 0.29 | 0.10 | 0.3 | 0.46 | 1.92 | 4.2 | 0.33 | 0.11 | 0.3 | Br | 10-6 | 2.9 | 3.7 | 1.3 | 2.3 | 1.0 | 0.5 | 4.5 | 5.9 | 1.3 | 3.3 | 1.5 | 0.5 | Cd | 10-9 | 127 | 308 | 2.4 | 96 | 40 | 0.4 | 205 | 613 | 3.0 | 150 | 68 | 0.5 | Ce | 10-6 | 75 | 25 | 0.3 | 71 | 16 | 0.2 | 75 | 43 | 0.6 | 72 | 16 | 0.2 | Cl | 10-6 | 233 | 1022 | 4.4 | 63 | 27 | 0.4 | 317 | 1611 | 5.1 | 72 | 26 | 0.4 | Co | 10-6 | 13.4 | 8.4 | 0.6 | 12.4 | 4.5 | 0.4 | 12.2 | 6.4 | 0.5 | 11.7 | 4.3 | 0.4 | Cr | 10-6 | 68 | 39 | 0.6 | 65 | 21 | 0.3 | 66 | 46 | 0.7 | 63 | 22 | 0.3 | Cu | 10-6 | 24 | 17 | 0.7 | 22 | 8 | 0.4 | 25 | 32 | 1.3 | 23 | 9 | 0.4 | F | 10-6 | 534 | 267 | 0.5 | 512 | 137 | 0.3 | 521 | 325 | 0.6 | 501 | 147 | 0.3 | Ga | 10-6 | 17.2 | 4.2 | 0.2 | 16.9 | 3.4 | 0.2 | 16.3 | 3.8 | 0.2 | 16.1 | 3.1 | 0.2 | Ge | 10-6 | 1.4 | 0.3 | 0.2 | 1.4 | 0.2 | 0.2 | 1.4 | 0.2 | 0.2 | 1.4 | 0.2 | 0.1 | Hg | 10-9 | 46 | 385 | 8.3 | 28 | 18 | 0.6 | 76 | 466 | 6.1 | 50 | 31 | 0.6 | I | 10-6 | 2.5 | 2.4 | 0.9 | 2.0 | 1.1 | 0.6 | 2.4 | 2.5 | 1.1 | 1.8 | 0.8 | 0.5 | La | 10-6 | 38 | 13 | 0.3 | 37 | 8 | 0.2 | 38 | 22 | 0.6 | 37 | 7 | 0.2 | Li | 10-6 | 36 | 16 | 0.4 | 35 | 11 | 0.3 | 34 | 15 | 0.4 | 33 | 11 | 0.3 | Mn | 10-6 | 650 | 384 | 0.6 | 605 | 230 | 0.4 | 580 | 308 | 0.5 | 552 | 206 | 0.4 | Mo | 10-6 | 0.89 | 1.19 | 1.3 | 0.68 | 0.27 | 0.4 | 0.86 | 2.00 | 2.3 | 0.67 | 0.26 | 0.4 | N | 10-6 | 489 | 291 | 0.6 | 444 | 176 | 0.4 | 1172 | 591 | 0.5 | 1117 | 450 | 0.4 | Nb | 10-6 | 16 | 6 | 0.4 | 16 | 4 | 0.2 | 16 | 7 | 0.4 | 15 | 4 | 0.2 | Ni | 10-6 | 29 | 22 | 0.8 | 28 | 10 | 0.4 | 27 | 20 | 0.7 | 26 | 10 | 0.4 | P | 10-6 | 479 | 276 | 0.6 | 460 | 177 | 0.4 | 707 | 359 | 0.5 | 686 | 256 | 0.4 | Pb | 10-6 | 27 | 39 | 1.4 | 23 | 5 | 0.2 | 30 | 90 | 3.0 | 25 | 7 | 0.3 | Rb | 10-6 | 109 | 37 | 0.3 | 103 | 19 | 0.2 | 104 | 37 | 0.4 | 99 | 18 | 0.2 | S | 10-6 | 233 | 668 | 2.9 | 129 | 58 | 0.5 | 353 | 746 | 2.1 | 259 | 104 | 0.4 | Sb | 10-6 | 0.94 | 1.60 | 1.7 | 0.76 | 0.30 | 0.4 | 1.02 | 2.15 | 2.1 | 0.80 | 0.31 | 0.4 | Sc | 10-6 | 11.2 | 3.6 | 0.3 | 11.1 | 3.0 | 0.3 | 10.7 | 3.5 | 0.3 | 10.5 | 2.9 | 0.3 | Se | 10-6 | 0.17 | 0.19 | 1.1 | 0.13 | 0.07 | 0.5 | 0.26 | 0.22 | 0.8 | 0.22 | 0.09 | 0.4 | Sn | 10-6 | 3.6 | 3.9 | 1.1 | 3.0 | 0.8 | 0.3 | 4.3 | 8.7 | 2.0 | 3.2 | 0.9 | 0.3 | Sr | 10-6 | 157 | 108 | 0.7 | 152 | 83 | 0.5 | 154 | 110 | 0.7 | 148 | 79 | 0.5 | Th | 10-6 | 13.5 | 6.9 | 0.5 | 12.3 | 3.2 | 0.3 | 12.9 | 6.1 | 0.5 | 11.9 | 3.0 | 0.3 | Ti | 10-6 | 4458 | 2069 | 0.5 | 4240 | 1068 | 0.3 | 4419 | 2191 | 0.5 | 4193 | 1044 | 0.2 | Tl | 10-6 | 0.7 | 0.3 | 0.4 | 0.6 | 0.1 | 0.2 | 0.6 | 0.3 | 0.4 | 0.6 | 0.1 | 0.2 | U | 10-6 | 2.8 | 1.6 | 0.6 | 2.4 | 0.7 | 0.3 | 2.8 | 15.1 | 5.4 | 2.4 | 0.7 | 0.3 | V | 10-6 | 87 | 37 | 0.4 | 83 | 24 | 0.3 | 84 | 36 | 0.4 | 79 | 24 | 0.3 | W | 10-6 | 2.12 | 3.08 | 1.5 | 1.78 | 0.55 | 0.3 | 2.18 | 7.45 | 3.4 | 1.77 | 0.55 | 0.3 | Y | 10-6 | 25.6 | 8.1 | 0.3 | 25.0 | 5.0 | 0.2 | 25.4 | 7.0 | 0.3 | 24.9 | 5.0 | 0.2 | Zn | 10-6 | 67 | 34 | 0.5 | 64 | 20 | 0.3 | 71 | 49 | 0.7 | 67 | 23 | 0.3 | Zr | 10-6 | 261 | 68 | 0.3 | 257 | 55 | 0.2 | 276 | 85 | 0.3 | 269 | 63 | 0.2 | SiO2 | % | 63.88 | 6.65 | 0.1 | 63.94 | 6.03 | 0.1 | 64.96 | 7.52 | 0.1 | 64.96 | 7.01 | 0.1 | Al2O3 | % | 13.98 | 3.15 | 0.2 | 13.62 | 2.31 | 0.2 | 13.14 | 2.65 | 0.2 | 12.96 | 1.96 | 0.2 | TFe2O3 | % | 4.79 | 1.81 | 0.4 | 4.64 | 1.35 | 0.3 | 4.49 | 1.72 | 0.4 | 4.35 | 1.28 | 0.3 | MgO | % | 1.52 | 0.76 | 0.5 | 1.50 | 0.71 | 0.5 | 1.48 | 0.80 | 0.5 | 1.46 | 0.75 | 0.5 | CaO | % | 2.99 | 2.97 | 1.0 | 2.90 | 2.76 | 0.9 | 2.85 | 2.75 | 1.0 | 2.79 | 2.58 | 0.9 | Na2O | % | 1.28 | 0.76 | 0.6 | 1.28 | 0.75 | 0.6 | 1.28 | 0.77 | 0.6 | 1.27 | 0.75 | 0.6 | K2O | % | 2.41 | 0.58 | 0.2 | 2.40 | 0.42 | 0.2 | 2.36 | 0.63 | 0.3 | 2.36 | 0.44 | 0.2 | TC | % | 0.90 | 0.72 | 0.8 | 0.84 | 0.55 | 0.6 | 1.63 | 0.85 | 0.5 | 1.54 | 0.58 | 0.4 | SOC | % | 0.37 | 0.33 | 0.9 | 0.31 | 0.16 | 0.5 | 1.15 | 0.71 | 0.6 | 1.07 | 0.49 | 0.5 | pH(中位数) | 8.03 | | | 8.04 | | | 7.67 | | | 7.67 | | |
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