大头茶种群循环更新的动态研究

Dynamics of cycling regeneration of Gordonia acuminata population

对大头茶种子雨和种子库、种子萌发过程、幼树生长时空动态研究表明，大头茶种群的更新过程可分为林窗期相、过渡期相、最适期相和终止期相；更新过程中种群在更大的时空尺度上表现为循环更新；种群对光资源的竞争是循环更新的动力之一，循环更新又与种群的生态适应对策密切相关．

Studies on seed rain, seed pool, seed germinating process and seedling growth of Gordonia acuminata population show that its regeneration process can be divided into gap, transition, optimal and terminal phases. The population is characterized by a larger temporalspatial scale cycling regeneration during its regeneration process. Competition for light resource is one of the main forces of cycling regeneration, which is closely related with the ecological adaptive strategy of the population.