APPROACHES TO THE STUDY OF SALINIZATION DYNAMIC OF SOIL COVER’ TRANSITIONAL AREAS
The peculiarity of the North-West Caspian region soil cover is the presence of soluble salts in the soil strata dynamic in profiles, as well as in space. The most dynamic properties are transitional areas in the soil cover due to seasonal, yearly, anthropogenic influences. The discrete character of traditional cartograms makes emphasizing these areas impossible, and therefore there is a need to transform cartograms with continualization that is more correspond to the continuous nature of the phenomena. Smooth cartogramms look like the fields due to statistic relief with extremes and gradients’ meanings. First the adapted method of moving cell was used to identify the dynamic areas of soil salinity. Sequential subtraction of different times’ cartograms gives a convincing picture of salts’ dynamic in the soil cover. In this paper a method for calculating the area of ​​a circular moving cell is provided and based on the range of variation. The determination of starting point position for a grid was done with reliance on the concept of nodes in the soil cover.