Abstract: By the use of the principles and methods of fractal geometry, the relationship between aboveground biomass and plant height of Aneurolepidium chinense population was studied. The results show that there is a good static fractal relationship between them, and the resulted fractal dimension is an efficient description of foe accumulation of aboveground biomass in each organ. Their dynamic fractal relationship shows that during the whole growing season, the increase of aboveground biomass has a selfsimilarily, being a fractal growth process, and the pattern of this increase is the fractal dimension D. Baed on these results, a fractal growth model of AAneurolepidium chinense population is established, which regards the mature grass as the result of the amplification of seedling growth.

Key words: Aneurolepidium chinense population, Abovegroud biomass, Plant height, Fractal, cold resistance, Carex, semi-lethal temperature, physiological response