烟台海岸带土壤重金属定量源解析及空间预测
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吕建树
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Source apportionment and spatial prediction of heavy metals in soils of Yantai coastal zone
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LYU Jianshu
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表1 烟台海岸带土壤重金属描述性统计(mg kg-1)
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Tab. 1 Descriptive statistics of heavy metals in soils of Yantai coastal zone (mg kg-1)
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| As | Cd | Co | Cr | Cu | Hg | Mn | Ni | Pb | Zn | pH | 最小值 | 2.2 | 0.01 | 0.6 | 7.2 | 1.1 | 0.006 | 63 | 3.6 | 16.1 | 6.9 | 4.66 | 最大值 | 99.0 | 8.27 | 45.2 | 206.6 | 302.1 | 3.210 | 1634 | 144.9 | 917.6 | 493.9 | 9.35 | 平均值 | 7.8 | 0.17 | 11.2 | 58.8 | 32.3 | 0.078 | 491 | 25.3 | 34.7 | 68.0 | 6.76 | 标准差 | 6.33 | 0.28 | 4.67 | 23.41 | 23.91 | 0.17 | 153.90 | 11.87 | 38.83 | 26.60 | 0.95 | 变异系数 | 0.82 | 1.66 | 0.42 | 0.40 | 0.74 | 2.23 | 0.31 | 0.47 | 1.12 | 0.39 | 0.14 | 偏度 | 7.69 | 23.13 | 1.17 | 1.40 | 3.56 | 9.50 | 1.61 | 2.43 | 19.05 | 4.85 | -0.05 | 峰度 | 90.04 | 647.80 | 3.94 | 5.74 | 25.28 | 126.58 | 8.22 | 16.28 | 408.44 | 64.44 | -1.07 | K-S检验(P) | 0.000 | 0.000 | 0.002 | 0.001 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 山东东部土壤 重金属背景值[27] | 6.3 | 0.108 | 11.0 | 56.2 | 19.6 | 0.029 | 552 | 23.5 | 25.4 | 56.1 | - | 农用地土壤污染 风险筛选值* | 30 | 0.3 | - | 200 | 100 | 2.4 | - | 100 | 120 | 250 | - | 第一类建设用地土壤污染风险筛选值 | 20 | 20 | 20 | -** | 2000 | 8 | - | 150 | 400 | - | - |
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