我国新疆北部积雪中痕量元素的时空分布及污染评估
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王鑫,王宁练,王俊杰,申保收
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Spatial and temporal distribution of trace elements in the snow cover and pollution assessment in northern Xinjiang
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Xin WANG,Ninglian WANG,Junjie WANG,Baoshou SHEN
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表2 新疆北部各时期积雪痕量元素含量 (ng·g-1)
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Table 2 Concentration of trace elements in snow cover of different periods in northern Xinjiang
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| 积累期(样品数=45) | 稳定期(样品数=49) | 消融期(样品数=41) |
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元素 | 最大值 | 最小值 | 平均值 | SD | | 最大值 | 最小值 | 平均值 | SD | | 最大值 | 最小值 | 平均值 | SD | Al | 6 286 | 50.7 | 1 359 | 1 180 | 9 462 | 111.3 | 1 737 | 1 838 | 8 721 | 50.9 | 1 347 | 1 631 | Fe | 5 379 | 39.1 | 1 206 | 987.1 | 1 1184 | 121.2 | 1 650 | 2 033 | 9 723 | 62.7 | 1 262 | 1 676 | Mn | 212.3 | 3.6 | 48.9 | 39.7 | 400.0 | 6.0 | 62.8 | 75.2 | 290.6 | 1.9 | 40.5 | 53.1 | Sr | 136.7 | 3.1 | 33.8 | 32.3 | 126.9 | 3.5 | 30.3 | 26.2 | 103.6 | 1.3 | 21.5 | 21.3 | Li | 10.8 | 0.07 | 2.2 | 1.9 | 15.5 | 0.12 | 3.0 | 3.0 | 10.9 | 0.06 | 1.9 | 2.0 | Be | 0.54 | 0.004 | 0.09 | 0.1 | 0.4 | 0.01 | 0.1 | 0.1 | 0.42 | 0.002 | 0.07 | 0.1 | Cr | 8.7 | 0.08 | 2.2 | 1.6 | 14.0 | 0.18 | 2.8 | 2.8 | 18.2 | 0.22 | 4.0 | 3.8 | Co | 5.6 | 0.06 | 0.95 | 0.9 | 5.7 | 0.09 | 1.1 | 1.1 | 5.3 | 0.04 | 0.81 | 1.0 | Ni | 15.4 | 0.19 | 2.6 | 2.5 | 12.2 | 0.34 | 3.1 | 2.8 | 9.2 | 0.17 | 2.5 | 1.9 | Cu | 26.1 | 0.28 | 3.4 | 3.8 | 40.6 | 0.46 | 4.2 | 6.0 | 14.1 | 0.26 | 3.4 | 3.0 | Zn | 85.2 | 2.4 | 17.6 | 14.0 | 36.5 | 2.5 | 14.5 | 7.9 | 51.2 | 3.24 | 16.3 | 12.5 | Ga | 3.1 | 0.02 | 0.6 | 0.5 | 3.1 | 0.07 | 0.68 | 0.6 | 3.2 | 0.02 | 0.57 | 0.7 | As | 10.7 | 0.12 | 1.6 | 1.7 | 11.4 | 0.14 | 1.4 | 1.6 | 3.6 | 0.06 | 0.88 | 0.8 | Cd | 0.6 | 0.01 | 0.06 | 0.1 | 0.55 | 0.01 | 0.06 | 0.1 | 0.2 | 0.001 | 0.05 | 0.01 | Ba | 143.8 | 4.0 | 29.9 | 27.5 | 88.1 | 3.0 | 27.3 | 18.3 | 119.6 | 3.0 | 26.9 | 28.1 | Pb | 26.3 | 0.29 | 4.8 | 4.8 | 14.0 | 0.76 | 4.8 | 2.8 | 117.3 | 0.51 | 15.6 | 22.5 |
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