Transformation of arable soils of Zhambyl region under the influence of agricultural use

The purpose of the research is to study changes in the morphological, physicochemical properties of irrigated and rainfed soils of different types on the foothill plains of the Zhambyl region in the conditions of their intensive use with the identification of the main factors leading to their transformation. The object of the study is the soils of the Zhambyl region, which are undergoing anthropogenic transformation in the conditions of agricultural use. On the basis of a comparative analysis of paired sections of virgin and arable lands, a study of agrochemical and physicochemical indicators for chestnut, serozem, meadow and meadow-serozem soils was carried out. It has been established that degradation has a complex nature and is expressed in dehumification, a decrease in the content of mobile phosphorus and potassium, and a change in the acid-base regime. The most intensive degradation processes are recorded in chestnut and serozem soils, where humus losses reach 50–55%, and phosphorus - 30–35%. In meadow and floodplain-meadow soils, salinization is observed.

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