渭南市土壤微量元素铷、锶、锆含量的分布

Content and Distribution of Microelements Rb,Sr and Zr in Soil of Weinan

通过在渭南市实地采集土壤样品,研究了渭南市土壤中铷、锶、锆的含量及空间分布特征。其分布特征如下:①渭南市土壤铷平均含量为76.76 ng/kg,中北部高,东西偏低,自南向北递增。②渭南市土壤锶平均含量为172.02 ng/kg,分布规律是北部含量最高,浦城县的土壤中锶的平均含量高达204.30 ng/kg;东西低,自中部向南北递减。③渭南市土壤锆平均含量为172.20 ng/kg,各县差异不大。

Soil samples were collected from Weinan area to study the content and space distribution of rubidium（Rb）, stron- tium（Sr） and zirconium（Zr）. Resuhs showed that average content of Rb in soil in Weinan was 76.76 ng/kg, which was higher in central-north area than in east-west area, and showed an increasing trend from south to north. Average concentration of Sr in soil was 172.02 ng/kg, which was the highest in north area, low in east and west area, and decreased from central area to south and north area. The average Sr content in Pucheng county was up to 204.30 ng/kg. Average concentration of Zr in soil was 172.20 ng/kg; the difference among areas was not significant.