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Acta Prataculturae Sinica ›› 2015, Vol. 24 ›› Issue (8): 11-23.DOI: 10.11686/cyxb2014514

• Orginal Article • Previous Articles     Next Articles

Investigation of wild vine resources in Chengbu, Hunan

WANG Ye-She, CHEN Li-Jun, YANG Xian-Jun, DUAN Lin-Dong   

  1. Department of Urban Construction, Shaoyang University, Shaoyang 422000, China
  • Online:2015-08-20 Published:2015-08-20

Abstract: This study investigates wild vine resources in Chengbu County (Hunan Province), with a view to improving their exploration and utilization. We have analyzed the species composition and diversity of wild vines using the methods of field investigation, specimen identification and literature survey. There are 40 families, 88 genera, and 277 species of wild vine in Chengbu, of which very few are ferns and gymnosperms. Only 2 families, 2 genera and 2 species of pteridophyte and only 1 family, 1 genera and 1 species of gymnosperm were found, accounting respectively for 0.72% and 0.36% of the total number of vine species in the region. There are 37 families, 85 genera and 274 species of angiosperms, most of which are dicotyledonous plants, which include 33 families, 80 genera and 245 species, accounting for 88.45% of the total. Monocotyledonous plants are in the subordinate position, with only 4 families, 5 genera and 29 species, accounting for 10.47% of the total. As regards family and genus hierarchy, the family structure is relatively concentrated while the genus structure is relatively decentralized. In terms of life-form, phanerophyte vines outnumber others, accounting for 81.59% of the total. Minority forms include underground buds, therophytes, chamaephytes and hemicryptophytes, accounting for 8.66%, 4.69%, 2.89% and 2.17% of the total respectively. In terms of climbing style, the majority are twining vines, accounting for 46.21% of the total, while the minority styles include hooking, curling and adhering vines, accounting for 24.55%, 21.30% and 7.94% respectively. In terms of floristic composition, the vines are mainly tropical plants, with their 52 genera accounting for 59.09% of the total. Temperate-zone plants constitute a reasonably large proportion, making up 29 genera and 32.95% of the total. As pantropic plants dominate, East-Asian elements are secondary. There is a duality and transition between tropical and temperate elements. Chengbu is rich in wild vine resources with great potential for utilization. Efforts should be made to strengthen the protection and exploration of these resources.