张巧玲;陈志强;陈志彪;冯柳俊;

• 1:湿润亚热带山地生态国家重点实验室培育基地福建师范大学地理科学学院

摘要(Abstract)：

为探讨南方离子型稀土矿区马尾松地上部分各器官稀土元素的分布与富集特征,采集福建省长汀县濯田镇马尾松下的土壤样品和地上部分各器官(树皮、树干、树枝和树叶)样品,测定其稀土元素。结果表明:马尾松下的土壤稀土元素含量平均值为275.15 mg·kg~(-1),轻重稀土元素分异明显, Ce元素富集明显, Eu元素相对亏损;马尾松地上部分各器官稀土元素含量普遍较低, LREE高于HREE,轻重稀土元素分异。马尾松地上部分各器官稀土元素球粒陨石分布模式中, Ce元素和Eu元素明显正异常,马尾松树干、树叶重稀土元素标准化后明显波动分布,呈锯齿状,马尾松树皮和树枝波动幅度小;其δCe(δEu)均大于1, Ce和Eu元素明显富集。马尾松地上部分各器官稀土元素的吸收系数均较小,该地区稀土元素由土壤到植物的迁移程度低,马尾松地上部分各器官对稀土元素的富集能力弱,但其生物量和提取稀土元素的能力不容忽视,可尝试将植物提取技术运用于该地区的稀土净化。

关键词(KeyWords)： 离子型稀土矿区;马尾松;分布特征;富集特征;长汀县

Abstract:

Keywords:

基金项目(Foundation): 福建省自然科学基金项目(2017J01462)资助

作者(Author): 张巧玲;陈志强;陈志彪;冯柳俊;

Email:

DOI:

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