Abstract: An ecological investigation was made on the natural Taiwania flousiana population in Leigong Mountain of Guizhou Province by using checkerboard frame method, and the life table of the population was established by the method of spatial series substituting for time series. There was a fluctuation in the structure of T. flousiana population. The individuals at adult stage were abundant, and the survival curve of the population trended to the type of Deevey Ⅱ. The mortality rate curve and the disappearance rate curve in the lifespan had the similar variation trend, with the peaks in 6th and 12th age class periods. The survival rate of the population decreased monotonically, whereas the cumulative mortality rate was in adverse. Four survival functional curves showed that T. flousiana population grew stably in middle age period but declined in old age period.

Key words: Mangrove, Biomass, Net primary productivity