Evaluation of the Relationship Between Indices Obtained from Different Satellite Data and Soil Erosion Parameters

Abstract

Objective: The relationship between the indices and reflectances obtained by using different satellite images (Triplesat, Landsat 8), and soil erosion parameters (erosion rate, dispersion rate, structure stability, clay ratio, aggregate stability, and soil crust index) within the boundaries of Vezirköprü district of Samsun province. is to be revealed. Material and Methods: It was carried out in three stages: analyzing soil erosion sensitivity on a total of 32 soil samples taken at 100 x 100 m grid intervals from the study area, obtaining indices and reflectances of Triplesat and Landsat satellite images, and comparing the analysis results with the indices of satellite images." Results: The correlations between the reflectance values obtained from the Red, Green and Blue bands of the Landsat satellite data and the erosion rate were determined to be higher than the reflectances of the Triplesat satellite. No significant correlations were obtained between the aggregate stability and crust ratio properties of the soils and the indices. Higher positive correlations were determined between erosion rate and dispersion rate and indices. Conclusion: It has been seen that the aggregate stability (AS) contents of the soils are in a higher relationship with the indices obtained from Triplesat satellite images, and the erosion rate is higher with the indices obtained from Landsat satellite images. © 2023 The Author(s).