خصائص الترب في منطقتي العلم وتكريت

Abstract

The soil properties in Tikrit and Al-Alam districts were studied using Geographic Information Systems (GIS) techniques. They are located within the boundaries of Salah al-Din Governorate, and naturally within the undulating area and the alluvial plain, and occupied an area of ​​(2567.45/km2). Astronomically, they are located at longitude 43°7'6.53"E east to longitude 44°6'16.87"E east, and from latitude 34°26'30.06"N north to latitude 35°4'26.94"N north. The study aims to study the soil properties in the study area through soil analysis. To achieve this, soil samples were collected and a chemical and physical analysis of their physical properties was conducted. The color is affected by the type of minerals and organic matter, and the texture depends on the size of the particles (sand, clay, silt). Density expresses the weight relative to the volume, and affects the soil's ability to retain water and the soil's ability to allow water and air to pass through. As for the chemical, the degree of salinity affects the availability of nutrients for plants; acidic or alkaline soils contain essential elements such as nitrogen, phosphorus, and potassium and cation exchange capacity (CEC): expresses the ability of the soil to retain nutrients and then take those samples and project them onto a map of the study area to produce maps of their spatial distribution.