Digital soil map using the capability of new technology in Sugar Beet area, Nubariya, Egypt

Due to the advances in the fields of remote sensing and GIS, a new paradigm, called digital soil mapping, is produced, where the emphasis is focused on soil attributes, assuming that these are continuously varying in space. Quantitative models have been developed within are used to describe, classify and study the spatial distribution patterns of soil as it occurs in the field.In this paper the dynamic SWERI Data Collector system (SDC) was used to determine the location of the soil profiles in the field work using HP Global Position System (GPS). The DEM was created using the geostatistical analysis. The geomorphic mapping units were created based on the result of digital elevation model using the histogram of the DEM values map. The physiographic mapping units are created by combining the most surveyed geomorphic mapping units with the geologic map.The variables of soil properties can be presented in values or classes, therefore two types of thematic maps could be identified. The first one used the values and the geostatistical analysis to create the soil variability value maps. The second type is descriptive variables such as soil classes and soil texture. The nearest point operation is a point interpolation which requires a point map as input and returns a raster map as output.The integrated methodology of this study could be considered as a ready module for applying at different locations and represents a significant participatory management tool for soil survey in Egypt.