Distribution Characteristics of Lead and Its Affecting Factors in the Tea Garden Soils of Fenghuang Mountain,East of Guangdong Province

LI Zhang-wei; YI Ben-liang; LIU Zhi-xiang

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Distribution Characteristics of Lead and Its Affecting Factors in the Tea Garden Soils of Fenghuang Mountain,East of Guangdong Province

更新时间：2024-11-07

- Distribution Characteristics of Lead and Its Affecting Factors in the Tea Garden Soils of Fenghuang Mountain,East of Guangdong Province
- Vol. 25, Issue 4, (2011)
- 作者机构：
  
  韩山师范学院化学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
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LI Zhang-wei, YI Ben-liang, LIU Zhi-xiang. Distribution Characteristics of Lead and Its Affecting Factors in the Tea Garden Soils of Fenghuang Mountain,East of Guangdong Province[J]. 2011, 25(4).
DOI：

LI Zhang-wei, YI Ben-liang, LIU Zhi-xiang. Distribution Characteristics of Lead and Its Affecting Factors in the Tea Garden Soils of Fenghuang Mountain,East of Guangdong Province[J]. 2011, 25(4). DOI：

摘要

通过对粤东凤凰山茶区12个大型茶园土壤和茶叶进行采样

采用连续提取法将茶园土壤Pb分为可交换态、碳酸盐结合态、铁锰氧化态、有机束缚态和残渣态

探讨茶园土壤Pb的5种化学形态分布与土壤理化性质、茶叶Pb含量的相关性关系。结果发现

土壤中Pb的5种化学形态分布的规律为残渣态>铁锰氧化态>交换态>有机束缚态>碳酸盐态。土壤有机质与可交换态Pb含量呈显著负相关

与碳酸盐结合态Pb呈极其显著负相关

而土壤pH值与土壤可交换态Pb呈显著负相关

与碳酸盐态Pb和有机束缚态Pb呈极其显著正相关。茶区12个茶园土壤样品的Pb生物有效性系数范围在0.029～0.113

平均值为0.061;Pb可迁移性系数范围在0.021～0.078

平均值为0.044。凤凰山茶叶Pb含量的范围在1.39～1.82 mg/kg之间

平均为1.56 mg/kg。茶叶中的Pb含量与土壤氧化物结合态Pb、有机束缚态Pb呈显著正相关

与土壤有机质呈极其显著正相关。

Abstract

The fractionation of Pb in tea garden soils and the relationships between Pb fraction and soil properties

Pb contents in tea leaves were studied by collecting the tea garden soils from 12 tea gardens of Fenghuang mountain in east of Guangdong province.The results showed that the distribution of chemical fractions of Pb in the tea garden soils were decreased in the order: Residual-Pb>Fe/Mn oxides-Pb>exchangeable-Pb>organic-Pb>carbonate-Pb.Correlation analyses showed that soil organic matter was significantly...

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