Study on species abundance distribution m odel of the race and endangered plant Tsuga longibracteata community

This paper poses the Weibull model of species abundance distribution to simulate the species abundance distribution of the rare and endangered plant Tsuga Iongibracteata forest．The results show that the species abundance distributions of arbor layer and shrub layer of Tsuga longibracteata forest all follow the Weibull distribution，and it is feasible to use the Weibull model to simulate the species abundance distribution of the rare and endangered plant Tsuga longibracteata forest．