Investigation and Analysis of Threatened Plants in Baojing County
To grasp the current situation of threatened plants in Baojing County,methods such as field in-vestigation,specimen collection and organization,and literature review were adopted to investigate and analyze the threatened plants of the area.The results show that there were 70 species of threatened plants in 36 families,55 genera,of which 4 were critically endangered,21 were endangered,and 45 were vulnera-ble.Among the categories,angiosperms were the most threatened.In the composition of family and ge-nus,the threatened plants mainly belong to single species and single species.In the composition of life forms,the threatened plants were mainly herbaceous plants.The floristic composition of threatened plant genera is complex,their origin and development are closely related to tropical distribution,and East Asian components are prominent,showing subtropical characteristics.The population of threatened plants is normally distributed,and the geographical distribution is unbalanced.Habitat degradation or loss and di-rect harvesting and felling are the main risk factors for threatened plants.Three protected areas in Bao-jing County provide effective protection for threatened plants.
万方数据
维普
