Abstract: By using standard sampling method, this paper studied the relationships of the plant community’s species number, area, and species diversity in Huoshan Mountain of Shanxi Province. In the stands at three different elevations, the adjusted coefficients of determination (R² values) of species(log)-area(log) curves were higher than those of species-area curves and speciesarea(log) curves. At medium elevation, the mean species number and the Margalef index (R) and Shannon-Wiener index (H′) of the community were the largest, but the Jaccard coefficient (J) was the smallest. The estimated values of the species-area curves and species-area(log) curves in the stands at the three different elevations were close to the observed values.

Key words: litter decomposition, Inner Mongolia typical steppe, grazing., soil animal community