In order to deal with the relationship between lead and cadmium pollution of soil and the quality safety of agricultural products in a lead-zinc mining area in Guangxi,441 samples of soil and agricultural products were collected.Statistical methods such as normal distribution and T-test were used to analyze and fit to establish the prediction model of lead-cadmium relationship between soil and agricultural products.The results showed that the over-standard rates of lead and cadmium in agricultural land in the study area were 55.06%and 84.23%,respectively.The results of T-test showed that both lead and cadmium in the soil were significantly accumulated(0.000).The over-standard rate of lead and cadmium in rice was 13.6%and 59.09%respectively,the lead content in corn was 17.4%,and the content of cadmium in citrus did not exceed the standard.the results of normal distribution analysis showed that the content of cadmium in rice and lead in corn showed normal distribution.There was a significant correlation between soil cadmium content and rice cadmium content,and the correlation prediction model was y=2.562 5x2-0.754 1x+0.412 2(R2=0.89).
lead-zinc mining arealead and cadmiumagricultural land pollutionagricultural productquality safety
国家科技期刊平台
NSTL
万方数据
