Spectral Reflectance Study for Assessing Soil Properties of Spatially Associated Red and Black Soils of Saptdhara Watershed, Nagpur, India

要旨

Soil reflectance behavior can be used to understand soil quality and further soil mapping. An attempt has been made in the Nagpur district, India to measure the spectral reflectance of spatially associated red and black soils using ISCO (Model S.R.) Spectroradiometer for assessing soil quality. Spectral reflectance from red and black soils increases with increase in wavelength and red soils reflects more compared to black. Soil color (hue), Fe203, sand and clay have significant correlation with spectral reflectance while organic carbon, value and chroma have non-significant correlation. Highest negative correlation of hue on soil reflectance was observed at 900 and 1200 nm wavelength. The clay has negative correlation while sand has positive and the significant effect of both has been observed at 900 and 1200 nm wavelength. Fe203 have significant positive correlation between 625 to 900 and 1050 to 1200 nm wavelength regions. The above wavelength bands can be the indicators for differentiating kinds of soil based on their properties.