| Take cinnamon soil in Beijing area as the study subject,the author used the six kinds of revegetation substrate materials which were super absorbent polymer,chicken manure,peatmoss,soil,straw and fast released fertilizer in different dosage and proportion to do orthogonal experiment of pot experiment and artificial rainfall simulation test,and studying the effect of growth of Festuca arundinacea and Medicago sativa and basic physicochemical properties of nine formulas. Screening by synthetic grade method and synthetic equilibrium method,it was shown that the optimal formula were A1B2C3D3 and A3B3C3D3 in the group of Festuca arundinacea and Medicago,namely which the dosage of super absorbent polymer was 1.5g,the dosage of chicken manure was16.2g,the proportion of peatmoss,soil,straw was 40:40:20,and the proportion of fast released fertilizer was 3:1:3 was the best. And by the artificial rainfall simulation test,the author studied the erosion resistance on soil slope in different dosage of adhesive,slope,rainfall intensity and grass species characters.It was shown that the optimal formula were A2B3C3D1 through range method.Namely which the dosage of adhesive was 0.4g,the slope was45°,rainfall intensity was213mm/h,and planting Festuca arundinacea was the best.
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