Abstract:The content sequence of soil mineral elements in southern Ningxia is SiO2>Al2O3>CaO>Fe2O3MgO>K2O>MnO>Zn>Cu.The space distribution of Si,A1,Fe and Ti is relatively even.Ca,Mg,K,etc.have apparent variations and uneven space distribution.It shows that residual parent materialsdeluvial parent materialsloess parent materials in Si,Ti,Cu,Zn and Mn element content;alluvial parent materialsresidual parent materialsloess parent materials in regard to Fe,Mg,K;diluvial and alluvial parent materialsloess parent materialsresidual parent materials; as to Al,diluvial and alluvial materialsresidual materialsloess;and that Ca is highest in loess parent materials and lowest in residual parent materials.From mountain area to diluvial fan,to upper reaches terrace,to medium and lower reaches terrance,Si,Cu,Zn,Mn element content decreases gradually but Al,Mg,Fe,Ca,K increases continually.