Two environment problems that disturbed China have been the
sand storm climate in the spring of northern China and the soil
deposition of Yellow River.The key solution depends on the soil water protection of Huangtu plateau.The plateau keeps poorly forestry and plants.Its climate gets drier.The traditional cultivation system increases the water evaporation and inhibits the full seedling growth,which results in the low and unstable yield. The
no tillage system and mulches with crop stalks can highly preserve the rainfall in summer and autumn of last year,increasing the seedling growth rate yield(17～40)%.The surface soil can be protected from wind erosion,while in rainy summer,the soil can greatly absorb water and slow down the land surface streams and prevent the soil from being taken into the river. The water soil preservation of Huangtu plateau includes the efforts from various department and provinces.It calls for the chairmanship of the council of the state and different department as well as different provinces to spread the no tillage system and solve the problems encountered. <