Analyses of Daodong Forest Farm's Forest Operation Method's Stand Structure
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.
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