This study focuses on the mixed forests of Casuarina equisetifolia in classes 45,47,and 62 of Daodong Forest Farm,and analyzes their stand structure and species richness.The study's findings are as fol-lows:(1)Class 45's vertical structure is primarily distributed between 8 and 12 meters of the forest layer and breast-height diameter is primarily distributed in the horizontal structure between 6 and 20 meters.The diame-ter at breast height is primarily spread in the horizontal structure of 10cm to 20cm,while the verticalstructure of Classes 47 and 62 is primarily distributed in forest layer of 8 m to 14 m.(2)The Class 45 understory contains a total of 10 families,13 genera,and 13 species of herbaceous plants,with Niujin Grass,Pseudostink Grass,and Vietnamese Phyllanthus as the dominant species.In the understory of Class 47 and 62,there are a total of 10 families,14 genera,and 15 species of herbaceous plants,with Feipeng Grass and Pseudostink Grass serving as the dominant species.(3)In the three classes of Acacia grandiflora,the proportion of trees with a diameter bigg-ger than the peak is relatively high,meaning there are more trees with a diameter greater than the peak,accord-ing to the skewness of distribution.
NETL
NSTL
万方数据
