title: [Study on ecological suitability regionalization of Eucommia ulmoides in Guizhou].
abstract: OBJECTIVE
  To study the ecological suitability regionalization of Eucommia ulmoides, for selecting artificial planting base and high-quality industrial raw material purchase area of the herb in Guizhou.
  
  
  METHODS
  Based on the investigation of 14 Eucommia ulmoides producing areas, pinoresinol diglucoside content and ecological factors were obtained. Using spatial analysis method to carry on ecological suitability regionalization. Meanwhile, combining pinoresinol diglucoside content, the correlation of major active components and environmental factors were analyzed by statistical analysis.
  
  
  RESULTS
  The most suitability planting area of Eucommia ulmoides was the northwest of Guizhou. The distribution of Eucommia ulmoides was mainly affected by the type and pH value of soil, and monthly precipitation. The spatial structure of major active components in Eucommia ulmoides were randomly distributed in global space, but had only one aggregation point which had a high positive correlation in local space. The major active components of Eucommia ulmoides had no correlation with altitude, longitude or latitude.
  
  
  CONCLUSIONS
  Using the spatial analysis method and statistical analysis method, based on environmental factor and pinoresinol diglucoside content, the ecological suitability regionalization of Eucommia ulmoides can provide reference for the selection of suitable planting area, artificial planting base and directing production layout.
authors.forename: Chuan-Zhi
authors.initials: CZ
authors.lastname: Kang
authors.forename: Qing-Qing
authors.initials: QQ
authors.lastname: Wang
authors.forename: Tao
authors.initials: T
authors.lastname: Zhou
authors.forename: Wei-Ke
authors.initials: WK
authors.lastname: Jiang
authors.forename: Cheng-Hong
authors.initials: CH
authors.lastname: Xiao
authors.forename: Yu
authors.initials: Y
authors.lastname: Xie
mesh_terms: D000220:Adaptation, Biological; D002681:China; D002980:Climate; D004463:Ecology; D031283:Eucommiaceae / Q000737:chemistry / Q000254:growth & development* / Q000502:physiology; D040362:Geographic Information Systems; D062306:Geography, Medical; D017705:Lignans / Q000032:analysis; D008962:Models, Theoretical; D024301:Plant Bark / Q000737:chemistry / Q000254:growth & development; D010946:Plants, Medicinal / Q000737:chemistry / Q000254:growth & development* / Q000502:physiology; D012987:Soil
chemical_list: D017705:Lignans; D012987:Soil; C013200:pinoresinol diglucoside