Abstract:This paper describes the relationship between aboveground net primary productivity (ANPP) and precipitation in Leymus chinensis community based on the observations made in Inner Mongolia grassland from 1981 to 1994. Our results showed significant differences in annual and seasonal precipitation patterns. Most of the annual precipitation was distributed between June and August with the highest in July. A quadratic relationship was discovered between the ANPP and the accumulative precipitation from the Octob...