湖北林业科技

Phoebe zhennan is a national Class II protected plant in China. To formulate targeted conservation strategies for its germplasm resources and realize efficient utilization of its timber resources, this study conducted a systematic investigation of their existing wild communities in Hukou Village, Wangjiagou and Gaoluo Town of Enshi Prefecture, Hubei Province. Indicators including plant species composition, individual quantity, diameter at breast height, tree height and crown width within the sample plots were recorded. The results showed that a total of 53 vascular plant species belonging to 47 genera and 32 families were found in three sample plots with relatively abundant species diversity. The arbor plants were divided into 6 distribution types and 4 variants, and phanerophytes accounted for 77% of the total. Among them, wild Phoebe zhennan community in Hukou Village had the lowest values of Shannon?Wiener diversity index, Simpson diversity index and Pielou evenness index, suffering from the most severe community damage. Overall, their population in Enshi Prefecture presented a survival characteristic that a large number of seedlings and saplings died while adult individuals tended to grow stably. In conclusion, their wild community resources are relatively abundant in Enshi Prefecture, whereas the population has weak natural regeneration capacity and is greatly affected by human disturbances. It is urgent to implement corresponding conservation strategies for its comprehensive protection.