广西某铅锌矿区农用地铅镉富集效应及农产品质量安全研究  

作　　者：农泽喜 郭尚其 马荣锴 唐茜 曾德华 张之才 

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]广西环境污染控制理论与技术重点实验室,广西桂林541004

出　　处：《智慧农业导刊》2024年第13期39-43,共5页JOURNAL OF SMART AGRICULTURE

基　　金：广西科技重大专项(桂科AA17204047-1)。

摘　　要：为了解广西某铅锌矿区农用地土壤铅镉污染情况及其与农产品质量安全的影响关系,共采集土壤、农产品样品441件,采用正态分布、T检验等统计学手段进行分析并拟合建立土壤-农产品铅镉相关关系预测模型。结果表明,研究区农用地土壤铅、镉超标率分别为55.06%和84.23%,T检验结果显示土壤中铅、镉均为显著累积(P=0.000);水稻中铅、镉含量超标率分别为13.6%和59.09%,玉米中铅超标率为17.4%、镉含量未超标,柑橘中铅、镉含量均未超标,正态分布分析结果显示水稻中的镉、玉米中的铅含量均呈正态分布;土壤镉含量与水稻镉含量具有显著的相关性,其相关关系预测模型为y=2.5625x^(2)-0.7541x+0.4122(R^(2)=0.89)。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=2.5625x^(2)-0.7541x+0.4122(R2=0.89).

关 键 词：铅锌矿区 铅镉 农用地污染 农产品 质量安全 

分 类 号：X705[环境科学与工程—环境工程]