title: [Restricting effects of geologic background system on genuine crude drugs in Sichuan].
abstract: The distribution, growth, output and quality of genuine crude drugs are restricted by geologic background system (GBS), whose extensional vector system "rock-->soil-->medicinal plants" accomplishes the unity of geological grand cycle and biological pulmonary circulation. This article describes how genuine crude drugs in Sichuan, such as Coptis chinensis, etc. for example, are restricted by GBS.
authors.affiliation: Sichuan Institute of Chinese Materia Medica, Chongqung.
authors.forename: J
authors.initials: J
authors.lastname: Fan
authors.forename: S
authors.initials: S
authors.lastname: Yi
authors.forename: A
authors.initials: A
authors.lastname: Zhang
authors.forename: P
authors.initials: P
authors.lastname: Zhao
authors.forename: Z
authors.initials: Z
authors.lastname: Lou
authors.forename: X
authors.initials: X
authors.lastname: Xiao
authors.forename: Z
authors.initials: Z
authors.lastname: Li
mesh_terms: D000818:Animals; D001599:Berberine / Q000032:analysis*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000633:toxicity; D055593:Geological Phenomena; D005844:Geology; D007928:Lethal Dose 50; D051379:Mice; D010946:Plants, Medicinal / Q000737:chemistry* / Q000254:growth & development
chemical_list: D004365:Drugs, Chinese Herbal; D001599:Berberine