The primary research on dried soil layer in the Loess Plateau

Abstract

In this paper,on the basis of describing the phenomena and style of dried soil layer,the causes of formation of dried soil layer are analyzed,which are low precipitation and high transpiration,loss of soil and water,inappropriate to choose vegetation styles,exorbitant productivity of community,and too high community density.Meanwhile,the hazards of dried soil layer are put forward,which leads to microclimate environment to drought,soil degradation,declining of vegetation growth,bad natural sowing,and difficult afforestation and so on.Finally the significance for recovering and reconstruction of eco environment on the Loess Plateau of solving the problem of dried soil layer is suggested.