Moisture is one of the most important parameters affecting soil polarization spectra

and is critical to soil remote sensing band selection and image interpretation. It also provides information required for soil investigation and analysis of physical and chemical properties. In this paper

we tested and analyzed the polarization spectra of soils with different moisture contents in the wavelength range of 350 nm to 2500 nm to study the relationship between soil spectral polarization data and soil moisture

to determine the spectral response and changes in soil moisture

and to establish models of the relationship between spectral data and soil moisture. We also designed an orthogonal test for the various factors that affect soil spectral polarization characteristics

in which we studied soil moisture

polarization angle

detected angle

and azimuth of the various factors and their interactions. The results showed that the most significant factors were soil moisture and the interaction of soil moisture and polarization angle

followed by the interaction between the detected angle and moisture

while the polarization angle had little impact on the soil polarization spectra.