Study Permeable Pavement And Rainfall Runoff Features In Red Soil Region

Subtropical red soil region rich in water and heat resources, However, the area is weak in seasonal precipitation of uneven distribution, rain heat in different period, soil water holding capability and so on which seriously restrict the sustainable development and the ecological environment improvement Especially for less than the national water resources in the eighth Kunming. The article analy the red soil of Kunming city, reasonable design experiment, convert the water evaporation to the land surface evaporation by meteorological data and Kai Jiang model, using Hydrus-1D simulation to verify consistency with the measured results, and further analysis of the applicability of Hydrus model Indoor experiment and theoretical model analysis method of combining explore and analyze the use of the rainwater resources, and provide a good reference for the solution to the current water shortage problems.the preliminary results are as follows:(1) By reading the literature at home and abroad, combined with the actual situation of using adaptive determination method, theoretical analysis method to get a series of related parameters of soil.(2) Utilization of Chinese Meteorological Yearbook, weather data provided by Kunming meteorological station, analyzing the relationship between the climatic factors in Kunming area And verify the trustworthiness of the land and water surface evaporation with Kai Jiang model results.(3) Based on the measured outdoor experimental results, analysis the rainfall runoff characteristic under permeable pavement and pave the way for Numerical simulation.(4) Combination of the above test results, using Hydrus-1D software for numerical simulation and measured, by contrast, Software simulation results is very good and can be applied to further explore analyse.