云南省安宁地区土壤重金属等元素生态地球化学调查与评价
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范晨子, 袁继海, 刘成海, 郭威, 孙冬阳, 刘崴, 赵九江, 胡俊栋, 赵令浩
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Eco-geochemical survey and evaluation of heavy metals and other elements in soil in Anning City, Yunnan Province
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FAN Chen-Zi, YUAN Ji-Hai, LIU Cheng-Hai, GUO Wei, SUN Dong-Yang, LIU Wei, ZHAO Jiu-Jiang, HU Jun-Dong, ZHAO Ling-Hao
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表2 安宁地区土壤重金属地累积指数等级比例
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Table 2 Geoaccumulation index of soil heavy metals in Anning
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重金属元素 | 各元素不同地累积指数级别样品数占比/% | Igeo<0 | 0≤Igeo<1 | 1≤Igeo<2 | 2≤Igeo<3 | 3≤Igeo<4 | 4≤Igeo<5 | Igeo≥5 | 无 | 较弱 | 弱 | 中等 | 较强 | 强烈 | 极强 | Cr | 63.52 | 4.21 | 7.61 | 4.63 | 3.51 | 2.48 | 14.0 | Ni | 90.84 | 1.03 | 2.10 | 1.57 | 0.05 | 0.05 | 3.55 | Cu | 90.80 | 3.34 | 1.98 | 0.74 | 0.70 | 0.54 | 1.90 | Zn | 54.81 | 19.19 | 12.01 | 4.17 | 2.60 | 1.49 | 5.74 | As | 71.16 | 5.41 | 8.02 | 4.26 | 2.23 | 1.40 | 7.52 | Cd | 56.37 | 23.79 | 9.22 | 3.25 | 2.59 | 0.92 | 3.86 | Pb | 50.04 | 32.66 | 8.34 | 2.73 | 1.82 | 0.83 | 3.59 | Hg | 45.16 | 29.03 | 12.99 | 5.09 | 0.91 | 1.36 | 5.46 |
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