In this paper the population dynamics of dominant tropical rain forest species Vatica hainanenses (V. astrotricha ) in Hainan Island is studied by Lifkovitch's matrix technique,A matrix model of the population growth is developed and possible changes in the population growth are simulated with the model.The dominant latent root for the initial matrix of V.hainanensis is 1.0004 by computing, which is remarkably close to the theoretical value of 1.0 for population stability.The relative distributions of initi...