The biomass forming law of Leymus chinensis community in salinized habitat and the effects of the soil salinization extent were explored by investigating the L. chinensis communities growing on the soil with different level of salinization, and continually monitoring at fixed sample plots, and then the relationship among soil salinization extent, noncapillary porosity the biomass and ecological dominace of the L. chinensis community were analysed. The results showed that no essential change appeared in sali...