以亚热带富稀土背景区的赣南水系为研究对象, 通过ICP-MS测定, 探讨了赣南小流域水体中溶解态稀土元素的含量及分布模式, 结果表明: 赣南小流域溶解态稀土(DREE)含量均值为1.2845 μg·L-1, 其浓度高于长江、珠江等内陆天然河流, 这反映了其富稀土背景的特点. 该区溶解态稀土元素分布模式表现出Ce明显的负异常和Eu正异常, 这与同一背景下表土层中的Ce正异常和Eu负异常是相对应的. 溶解态稀土元素的页岩标准化分布模式表现为中重稀土(MREE/HREE)富集型, 这是由于该区富含重稀土矿物的易风化的氟碳钙钇矿的存在引起的.
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