作　　者： ; ; ; ; ;

机构地区： 广东海洋大学农学院

出　　处： 《湖南林业科技》 2008年第6期25-27,共3页

摘　　要： 采用氢化物一原予荧光光谱法分析表明：特呈岛红树林中白骨壤古树群落和红海揽群落土壤无砷污染，总砷含量及五态砷合计含量均小于10mg／kg，其中以残渣态砷和Fe-结合态砷为主，后者占五种形态砷合计的25．6％-72．2％，土壤Fe-结合态砷〉交挟态砷〉AI-结合态砷〉Ca-结合态砷。 The As concentration analysis using HG-AFS showed that the soils of Ass. Avicennia rnar/na and Ass. Rhizophora stylosa wetlands in Techeng Isle, was not contaminated with As as As 〈 10 mg/kg in sampled soils, and the main fractions of As in the soils were in residual phase and in bound to iron with SEP method. As bound to iron was 25.6%-72.2% in total of the As fractions. The As contents ： As bound to iron 〉 non-specifically absorbed As 〉 Al-bound As 〉 Ca-bound As.

关 键 词： 红树林 土壤 总砷多态砷 含量 特呈岛

领　　域： [农业科学] [农业科学]