title: [Study on mineral elements distribution in soil of Angelica sinensis producing regions and its relationship with altitude and soil types].
abstract: 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 con- tents 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.
  
  
  CONCLUSIONS
  The distribution of mineral elements in soil is closely related to altitude and soil types.
authors.forename: Zhi-rong
authors.initials: ZR
authors.lastname: Gu
authors.forename: Jun-xia
authors.initials: JX
authors.lastname: Ding
authors.forename: Xin-yue
authors.initials: XY
authors.lastname: Liang
authors.forename: Ya-ya
authors.initials: YY
authors.lastname: Zhang
authors.forename: Ya-li
authors.initials: YL
authors.lastname: Wang
authors.forename: Yu-jing
authors.initials: YJ
authors.lastname: Sun
mesh_terms: D000531:Altitude; D029971:Angelica sinensis; D008903:Minerals / Q000032:analysis*; D012987:Soil / Q000737:chemistry*
chemical_list: D008903:Minerals; D012987:Soil