北京师范大学学报（自然科学版）2009，Vol.45Issue(5)：559-563,5.
茶园土壤中铅形态分布与茶叶中铅质量分数关系的研究
RELATIONSHIP BETWEEN Pb CONTENT IN TEA LEAVES AND Pb SPECIES DISTRIBUTION IN TEA GARDEN SOILS
摘要
Abstract
On the basis of Pb content at different layers of soil in tea garden from 0 to 100 cm, and total Pb content in tea leaves, the content and distribution of Pb in different forms in various soil layers, and correlation between Pb content in different forms in soil and total Pb content in tea leaves were investigated by using grey scale correlation analysis. Results show that in the studied soil profile, averaged Pb content in different forms was: residual lead>oxide lead>organic combined lead>carbonate lead>exchangeable lead. Pb distribution characteristics in the same profile was:exchangeable lead, organic combined lead and residual lead had higher content in the surface layer than that in the substrate, while the content of carbonate lead and oxide lead were higher in the bottom layer. The proportion of different forms of Pb varies along with their content in different layers. Therefore, the content of exchangeable lead had the lowest proportion in various layers while that for residual lead had the highest proportion (except in substratum). Grey scale correlation analysis revealed that Pb content in tea leaves had positive correlation with Pb content in each soil profiles, exchangeable lead showed maximum correlation while organic combined lead showed the second, especially Pb content in surface layer of soil has the greatest effect on Pb content in tea leaves.关键词
茶园/土壤/茶叶/铅质量分数/相关性Key words
tea garden/soil/tea/Pb content/distribution分类
农业科技引用本文复制引用
朱江,周俊,徐宗学,陈兴仁,贾十军,毕守东,柴如山..茶园土壤中铅形态分布与茶叶中铅质量分数关系的研究[J].北京师范大学学报（自然科学版）,2009,45(5):559-563,5.基金项目
安徽省自然科学基金资助项目(070411003) （070411003）
安徽省重点地区富硒土壤资源调查资助项目(200815) （200815）
