广西全州县富硒土壤地球化学特征

Geochemical characteristics of selenium-rich soil in Quanzhou county of Guangxi

依据广西全州县土地质量地球化学调查数据,研究了表层土壤中硒的总体分布特征、受控因素及生态效应。结果表明,广西全州县存在大面积的富硒土壤,土壤硒平均含量为0.60×10^(-6),足硒和富硒土壤面积分别占17.38%和81.88%。土壤硒含量的分布明显受成土母质、土壤质地、pH值等影响,主要受控于成土母质,具有明显的继承性。研究区土壤环境质量良好,富硒农产品丰富,富硒土地资源具有良好的开发前景。

Based on evaluation of surface soils in Quanzhou county of Guangxi and studied characteristics of selenium overall distribution,controlled factors and ecological effect of soils were presented.The results show that there has a large area of selenium-rich soils.The average selenium content is 0.60x10 6.Selenium-sufficient and selenium-rich soil’s area occupies 17.38%and 81.88%of the total area.The distribution of selenium in soils is affected by soil parent material,soil type,pH value and so on,which mainly controlled by soil parent material and has obviously inherited.The soil environment quality of the study area is good and the selenium-enriched agricultural products are rich,which has good development prospect.