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3 不同农作物种植地土壤重金属单因子污染指数

Table 3 Single-factor pollution index of soil heavy metals in different crop planting fields

作物种植地 Crop planting field	单因子污染指数Single-factor pollution index					污染等级Pollution level (%)
作物种植地 Crop planting field	P_Cd	P_Pb	P_Cr	P_Hg	P_As	P_Cd≤1.0	1.0<P_Cd≤2.0	P_Pb≤1.0	P_Cr≤1.0	P_Hg≤1.0	P_As≤1.0
苎麻地Ramie field	0.86±0.03a	0.35±0.01a	0.45±0.02a	0.0294±0.0041b	0.08±0.01ab	81.25	18.75	100	100	100	100
间套作旱地 Intercropping and relay-cropped dryland	0.78±0.09a	0.28±0.04b	0.41±0.03a	0.0234±0.0051b	0.06±0.01b	75.00	25.00	100	100	100	100
水稻田Paddy field	0.58±0.03b	0.19±0.01c	0.24±0.00b	0.0803±0.0060a	0.10±0.00a	100.00	0.00	100	100	100	100