Abstract:In order to understand the survival situation of plant community in Jinggang Mountain, the spatial patterns and interspecific relationship of dominant species were studied, and the protection strategy was discussed. The results showed that four dominant species with top importance value, such as Rhododendron ovatum, Castanopsis eyrei, Litsea elongate and L. elongata var. faberi, had different size structures, as well as in vertical distribution. Based on relative neighborhood density index (Ω r) analyses, the spatial distribution of Rhododendron ovatum, Litsea elongate and L. elongata var. faberi showed significantly aggregated distribution at most scales, while that of Castanopsis eyrei was random distribution. The upper canopy species Castanopsis eyrei had only significant positive correlation with under canopy species Rhododendron ovatum at small scale (<6 m), and Castanopsis eyrei provide refuge for Rhododendron ovatum within a certain range. However, most Litsea elongate and L. elongata var. faberi individuals in the middle canopy had obvious competitive relationship, which the two species showed significantly negative correlation at 9-13 m scale. Therefore, there were no significant competition among dominant species in Jinggang Mountain communities. If taking reasonable and scientific protection, the diversity of plant community will continue to improve.