STUDY ON MODEL OF SELF THINNING LAW OF PINUS TABULAEFORMIS POPULATION
油松植物种群自疏规律模型的研究

Based on the density theory of plant growth and related biological hypothesis,a new model of self thinning law of plant population was proposed,i.e. N =exp( a ln 2 B b ln B c ),where N and B is population density and weight mean plant or mean basal area at DBH and a,b and c are parameters.It was proved that the model fitted observed data very well from Pinus tabulaeformis population,and which was very simple.Therefor,the model is a satisfactory expression of self thinning law of plant po pulation .