title: [Wild resources survey of Marsdenia tenacissima in Honghe, Yunnan].
abstract: To ascertain current situation of wild Marsdenia tenacissima resources in Honghe, Yunnan province, the distribution, habitat characteristic and resources reserves of M. tenacissima were surveyed based on interviews and investigation. The results showed that M. tenacissima was found in 7 counties such as Jinping, Mengzi etc, and distributed mainly on the mountainsides from 800 m to 1 200 m. And distribution was affected by many factors, such as light, heat, topography, soil, and vegetation. M. tenacissima grew well in distribution areas. M. tenacissima had averagely a weight of 2.8 kg per plant. Resources reserve of M. tenacissima in Honghe was estimated to 1 300 tons by now but it reduced rapidly in resent years, the wild resources reserve may not meet demand of market. Resources protection and wildlife tending would be conducted to deal with increasing medication requirements.
authors.forename: Zhen-Gui
authors.initials: ZG
authors.lastname: Meng
authors.forename: Sheng-Chao
authors.initials: SC
authors.lastname: Yang
authors.forename: Jun-Wen
authors.initials: JW
authors.lastname: Chen
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Wang
authors.forename: Qiao-Sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Guang-Qiang
authors.initials: GQ
authors.lastname: Long
mesh_terms: D002681:China; D017753:Ecosystem; D031101:Marsdenia / Q000145:classification / Q000254:growth & development*; D010946:Plants, Medicinal / Q000145:classification / Q000254:growth & development*; D012987:Soil / Q000737:chemistry
chemical_list: D012987:Soil