IRAQI JOURNAL OF DESERT STUDIES

Abstract

Semi-detailed soil survey map, for east Al-Haffar project, which Located in Al-Dewania governorate. The land of this project Located between is of longitude (°44 51- 00= , °44 38- 00=) and latitudes (°33 38- 00= and 33° 57- 30=). The area of this project was 50000 hectare which was surveyed in 2015 by Ministry of Water Resources Department of Ecological Studies. Ninety two Soil pedon were Chosen. The spatial variability of some physical and chemical and morphological properties was studied using kriging method. The results were as follows: The spherical model was more suitable to describe soil properties. The soil samples number that represent studied transect was between 5 – 28 samples, while the low sample was for SAR content in the case of spatial dependency. Furthermore, number of samples was larger than 771 samples (randomizing low dependency,) which was the highest number was for Gypsum.