Özet:

Classical statistical approaches can define the heterogeneity in soils and allow comparison of desertification tendencies of different soils. In this study, desertification tendency of a land consolidation area located in arid climate conditions with pasture and agricultural lands is evaluated by considering the coefficients of variation. In the study, coefficient of variation values were determined to define desertification tendency for sixteen soil variables at four different slopes (0-2%, 3-6%, 7-12%, > 12%). For this purpose, 1808 soil samples were collected from the Aksaray-Ortaköy district land consolidation project area. Soil texture, saturation, pH, EC, % salt, % lime, Ca+Mg, Na, SAR, ESP, B, Clay Ratio I, Clay Ratio II and Clay Ratio III contents were taken into consideration in the study. Saturation, pH, % salt, % lime, % silt, % clay, Ca + Mg, Na, SAR, ESP and B properties showed significant differences in different slope groups according to the coefficients of variance. Generally, the coefficient of variation values increased with increasing slope and this situation was considered as a higher risk of desertification. It has been concluded that, considering the coefficient of variation values, it is possible to group the soils in terms of desertification risk.

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