The floristic characteristics of woody plants in Anxi Nature Reserve, Gansu

The exploration of the floristic geographical characteristics of woody plants in Anxi Nature Reserve will provide some scientific basis for the protection and utilization of woody plants resources in this area. In the present study, the woody plants species composition, floristic geographical characteristics and endemic species distribution in Anxi National Nature Reservation were analyzed combining the related documents, web data and the field investigation. The results showed that the woody plants species in the study area were very rich, where had 120 species of woody plants belongs to 47 genera in 21 families. There were 5 species of gymnosperms belonged to 2 genera in 2 families and 115 species of angiosperms belonged to 45 genera in 19 families; 7 species of arbor belongs to 4 genera in 3 families, 55 species of shrub belonged to 19 genera in 14 families. The floristic geographical composition of this area was complex which had 5 distributional types and 2 subtypes in the family level, 9 distributional types and 4 subtypes in the genera level, and 33 species of Chinese endemic species of woody plants. Woody plant in Anxi National Nature Reservation had an ancient origin, with some obvious the temperate component and the Mediterranean Sea component, which had a contact with the pantropic component. The woody plants in this area reflected the Mediterranean characteristics more obviously, while the herbaceous plants reflected the cosmopolitan characteristics and temperate characteristics more obvious.