The History Environment of Loess Plateau and Cause of Loess and Soil and Water Conservation

The loess plateau in china forms induced by conditions of the geology,geography and climate.There are discrepancy environment characteristic in diff erent natural area and forming different loess.The geological background of loes s plateau internal from the fourth age in rising makes clear a soil and water co nservation to stress chauying geologic strata against erosion ability and so on.