期刊论文

Soil property effects on and prediction models of lead and cadmium concentrations in tobacco leaves

中文

农业环境科学学报

1672-2043

2016

35

3

449-454

10.11654/jaes.2016.03.006

湖南省株州市烟草公司资助项目

本校为第一机构

在湖南某植烟区采集代表性的土壤和烟叶样品112个,测定了土壤理化性质和样品的铅、镉含量,并通过相关性和回归分析来研究烟叶铅、镉含量与土壤因子关系。结果表明:研究区土壤Pb、Cd全量平均值为40.91、0.37 mg·kg~(-1),Pb、Cd有效态平均值分别为10.71、0.23 mg·kg~(-1),烟叶Pb、Cd含量分别为3.86、7.55 mg·kg~(-1);烟叶Pb、Cd的富集系数分别为0.094和19.84,对比富集系数可知,植烟区烟叶镉的健康风险要大于铅。相关性分析表明:烟叶中Pb与土壤Pb全量、Pb有效态含量呈正相关,与pH值呈负相关;烟叶Cd与土壤Cd全量、Cd有效态含量、有机质含量和氯离子量呈正相关,与pH值负相关。通过数据逐步回归得到...

Plant heavy metal content is greatly affected by soil properties. In this paper, 112 flue-cured tobacco leaf and corresponding soil samples were collected from typical tobacco growing areas in Hunan Province to analyze soil properties and plant lead and cadmium content. Correlationship between Pb and Cd content in tobacco leaves and soil properties were studied. Results showed that the average values of soil total Pb and Cd were 40.91 mg·kg~(-1) and 0.37 mg·kg~(-1) and those of soil available Pb and Cd 10.71 mg·kg~(-1) and 0.23 mg·kg~(-1), ...