Wetland area development model is not only a non-stationary time series,but also a non-divergence seasonal period correlate series,and its character is strong correlate at seasonal time lag.

<Abstrcat>The hydrology and aerography indexes change in the middle of the rainy season in dry-hot valley are explored in this paper, which involves the mean ground temperature, relative humidity, runoff on trunk, rainfall, evaporation quantity, etc.