Abstract: To approach the characteristics of endemic species Beilschmiedia tungfangensis population structure in Hainan, a 20.4hm² experimental site was installed in Jianfengling forest region of Hainan, with the population diameter structure, static life table, survival curve, and spatial distribution pattern analyzed. The diameter class distribution of the B. tungfangensis population showed a reverse “J” type, suggesting that this population was of increasing type. The life expectancy was the highest at the third stage (DBH: 10-15 cm), and showed a decreasing trend to both the big and the small age classes. The survival curve was a concave one, similar to Deevey type III, whereas the mortality rate curve and hazard rate curve showed “V” type. The analyses with different methods all showed that the spatial distribution pattern of the B. tungfangensis population tended to be aggregated, and the aggregation intensity was strong. The patchiness index showed “sine or cosine” curve with diameter class.

Key words: geostatistical feature,