中文摘要：

目的：探讨当归产区土壤中矿质元素含量的分布规律及其与海拔、土壤类型的关系。方法：采用ICP-MS及AAS测定13个当归主产县共103批土壤样本中的15种矿质元素含量,采用Pearson相关、偏相关以及系统聚类分析进行研究。结果：Pearson相关分析显示,当归产区土壤中的Mg与海拔呈极显著正相关（P〈0.01）,Cd与海拔呈显著负相关（P〈0.05）,Pb、Cd、As、Cu、Cr及Ni等6种有害重金属元素与海拔呈负相关;系统聚类分析可将103批土壤样本分为5类,第Ⅰ类土壤类型以黑土、黑麻土及黑砂土为主,第Ⅱ类以黄土为主,第Ⅲ类以褐土为主,第Ⅳ类以红土及灰褐土为主,第Ⅴ类以黑土、黑麻土、灰褐土及褐土为主。结论：当归产区土壤中矿质元素的分布与海拔及土壤类型密切相关。

英文摘要：

Objective： To investigate the distribution characteristics of mineral elements in the soil of Angelica sinensis producing regions and its relationship with altitude and soil types. Methods： The contents of 15 mineral elements in 103 batches of soil from 13 counties were determined by ICP-MS or AAS. Pearson correlation analysis,partial correlation analysis and systematical cluster analysis were used to analyze the data. Results： Pearson correlation analysis showed that the content of Mg in soil and altitude showed significant positive correlation（ P〈0. 01）,the content of Cd in soil and altitude showed significant negative correlation（ P〈0. 05）,and the contents of Pb,Cd,As,Cu,Cr as well as Ni in soil and altitude showed negative correlation. The result of systematic cluster analysis showed that 103 batches of soil were clustered into 5 groups. The main soil types of group Ⅰ were black soil,haplic kastanozems and black sandy-soil,group Ⅱ was loess,group Ⅲ was cinnamon soil,group Ⅳ were red soil and grey cinnamon soil,and group Ⅴ were black soil,haplic kastanozems,grey cinnamon soil and cinnamon soil. Conclusion： The distribution of mineral elements in soil is closely related to altitude and soil types.