Retrieval of Soil Salt Content and pH using Hyperspectral Remote Sensing in Inner Mongolia

In order to study the application of hyperspectral remote sensing in retrieval of soil salinity and pH,topsoil samples in Yichang irrigation district of Inner Mongoliawere collected randomly to analyse the inverse of soil salt content and pH from laboratory's hyperspectral remote sensing in three different methods.The results demonstrated that the models based on partial least square method were the most stable(R2 were 0.957 for salt content and 0.987 for pH)and had the greatest predictive ability(RMSE were 0.682,0.108 for salt and pH),while the other two methods were not good.Inverse salinity and pH of soil by means of hyperspectral remote sensing was feasible.