The structure of plant communities with the prevalence of the Dipterocarpaceae family tree species in Binh Chau –Phuoc Buu Nature Reserve of Vietnam

This work analyzes the structure of evergreen rainforests with the prevalence of the Dipterocarpaceae family tree species in Vietnam. Four dominant formations were studied: Dipterocarpus, Shorea, Anisoptera, Vatica. The analysis of the structure of stands with the prevalence of the Dipterocarpaceae family plants was carried out based on the methodology of the stand components' weight that includes thickness of trees, cross-section and volume of the trunk. The criteria for the analysis included the distribution of trunk diameters (N-D) and heights (N-H). - The species composition of associated plants in the studied formations has different shares. The Shorea and Dipterocarpus formation has the largest number of tree species. For the four dominant plant formations, there are differences in the N / D distribution and no difference in the N / H distribution. The diameter of all trees in the main formations of the Dipterocarpaceae family vary more than the height. Forestry management requires taking into account the structural features of stands with the prevalence of the Dipterocarpaceae family tree species.