There was less vegetation on the barren slope due to less nutrition in the soil so that wind erosion and desertification occurred more badly.The experimentation was carried into execution to design different eco-grassland models to prevent wind erosion and improve soil physical and chemical properties in the barren slope in the Miyun reservoir watershed.The results showed that there was more 2 246.9 kg/hm2 of overground biomass in the year when eco-grasslands were planted.And it added to 5 941.6 kg/hm2 grea...