Based on the rice ecological system, the relationship of rice, pests, useful organisms, environment and management id studied, and the overall forecast is made at different growth period of rice.

On the basis of analyzing air automatic monitor data of many years,the statistical forecast pattern(many Yuan linear return) and the numerical forecasting pattern(CAPPS) were applied in the ambient forecast.

Based on the contrast of statistical forecast methods such as linear and nonlinear, discrimination -regression and threshold - regression, interpolation, distance and similar.

By using statistical method to analyze datum of air quality and surface meteorological observation in the city, it was brought about meteorological forecasting criterions and statistical forecasting models.

According to the purpose of quantity research in Physical Education, the statistical population can be divided into two categories: 1) the statistical population whose purpose is to obtain the information of research subject s characteristics.

The method for dealing with statistical problems of diverse population is discussed.

to the relativity of monitoring value of density of air pollution and synchronous weather factor, the model of statistics and forecast was established.