森林与环境学报2016,Vol.36Issue(4):423-428,6.DOI:10.13324/j.cnki.jfcf.2016.04.007
武夷岩茶主产区土壤及茶叶微量元素分布特征
Distribution characteristics of trace elements in the soils and tea leaves in Wuyi Yantea Provenance
摘要
Abstract
In order to study the distribution characteristics of trace elements in the soils and tea leaves in Wuyi Yantea provenance ( Mingyan and Danyan) of Wuyishan City, tea garden soils and the corresponding tea samples were collected, and the contents of 10 trace elements including Co, Mo, Se, Zn, Cu, Cr, Pb, Cd, As and Hg were determined. In addition, correlation analysis was conducted to examine the effect of the content of trace element in tea garden soils on the trace element enrichment in tea leaves. The results showed that:there were higher contents of trace element, except As, in Danyan soil than that of Mingyan soil. Enrichment factors in tea leaves varied fiercely among elements. The enrichment ability of Cu and Hg is the highest, followed by Zn, Se and Cd, and non ̄essential elements such as As, Pb and Cr is the lowest. Between Mingyan and Danyan, the most obvious difference of trace element content was found at Hg and Co. The trace element contents in soil had a great influence on that in tea leaves. Element contents of soil and tea leaves from Mingyan were all under the national standard. In Danyan, contents of Cu and Cr of several soil samples were beyond the permitted limit of national standard, while element contents of tea samples were conformed to the safe range, although with high Co content.关键词
微量元素/富集系数/土壤/岩茶/武夷山Key words
trace elements/enrichment coefficient/soil/Yancha/Wuyishan分类
农业科技引用本文复制引用
叶宏萌,郑茂钟,李国平,李灵,刘养斌..武夷岩茶主产区土壤及茶叶微量元素分布特征[J].森林与环境学报,2016,36(4):423-428,6.基金项目
福建省教育厅科技项目(JA14311, JK2013056);福建省科技厅重点项目(2014N0030);福建省科技创新平台建设计划项目(2013N2009)。 (JA14311, JK2013056)