Effect of time sequence on the size distribution of soil particles in soils located within Babylon province

Abstract

This study was conducted in the Al-Mahawil district of Babylon province, located in the central region of Iraq and extending between longitudes 44°33'13" to 45°01'51" east and latitudes 32°25'26" to 32°49'54" north. 22 auger hole locations were identified with an auger hole to a depth of 0 - 30 cm. After that, eight pedons were detected and their coordinates were determined using a GPS device. Two pedons were detected in each cultivated soil for 5 years, with one cultivated pedon and the other left for control, with two pedons in soil. Cultivated for 10 years, one cultivated , the other left for comparison, and two pedons in soil cultivated for 15 years, one cultivated , the other left for comparison, and two pedones in a period of time of 20 years, one cultivated , and the other left for comparison. The horizons of the pedons were described morphologically, and samples were obtained from each location to conduct the necessary laboratory analyzes on themThe results of the morphological description of the soils of the study area indicated that they are soils with a recently formed sedimentary parent material, with an almost flat topography, with a hot, dry continental climate in the summer and a cold, little rain in the winter. The prevailing type of structure is the blocky, non-acute-angled type in the abandoned soils, and the semi-angular blocky structure in the cultivated soils. The time period had no effect on the morphological characteristics of the soil.