不同农作物种植对土壤和作物重金属的影响

黄承建, 李祥, 刘小康, 潘庭杰, 雷宁, 罗芳, 赵思毅

Effects of Different Crops Planting on Heavy Metals in Soils and Crops

Huang Chengjian, Li Xiang, Liu Xiaokang, Pan Tingjie, Lei Ning, Luo Fang, Zhao Siyi

表6 稻米重金属单因子污染指数和内梅罗综合污染指数

Table 6 Single-factor pollution index and Nemerow comprehensive pollution index of heavy metals of rice grains %

重金属 Heavy metal Pi 污染等级Pollution level PN 污染等级Pollution level Pi≤1.0 1.0<Pi≤2.0 PN≤0.7 0.7<PN≤1 1<PN≤2 Cd 0.15~1.90 0.86±0.18a 70.00 30.00 0.25~1.38 0.65±0.12 60.00 30.00 10.00 Pb 0.01~0.31 0.13±0.04b 100.00 0.00 Cr 0.04~0.10 0.06±0.01b 100.00 0.00 As 0.21~0.50 0.33±0.03b 100.00 0.00