The Nature of the Pedogenic and Geoinformatics Distribution of Iron Oxides in Different Physiographic Units

Abstract

The study was conducted within different physiographic units in central and northern Iraq to find out the nature of the effect of these units on the genetic distribution of iron oxides within the soil pedon. Sex Soil pedons representing the nature of the variability of the physiographic units were elected, in addition to taking 34 surface samples representing the nature of the variability of the soil units horizontally within the physiographic units to prepare maps of the spatial distribution of iron oxides based on geospatial technologies, Soil Pedons described the morphology and wavelength 5 YR for Soil pedon located within the mountainous region that was affected by iron oxides The results showed that the highest content of iron oxides was in the mountainous physiographical unit in the surface horizon Mollic horizon while the lowest content of oxides was in the physiographical unit of the river basin. The Geoinformatics distribution maps revealed 3 class of iron oxides, the low class, the medium class, and the high class. The most abundant class was the moderate class, with an estimated area of about 1051.8575.