Mechanical and microaggregate composition of irrigated meadow soils of the Karakul Oasis

Аннотация

The article shows the changes in the mechanical and microaggregate composition of the irrigated meadow soils of the Karakol oasis under the influence of anthropogenic factors. Morphological changes in the genetic layers of soils, in particular, the mechanical and microaggregate composition, are represented by methods adopted in soil science. The mechanical composition of soils has a significant impact on their following properties: physical, water, chemical, physico-mechanical, biological, thermal, etc. The moisture-retaining and load-bearing capacity of soils, heat transfer, physical and mechanical properties, soil resistivity during its processing, maturation time, viscosity, flexibility, subsidence, etc. directly depend on the mechanical composition. The mechanical composition of the soils in which scientific research is conducted is diverse, which is largely determined by the omposition of the soil-forming parent rocks and human activity. The mechanical and microaggregate composition of soils is the main indicator of morphological, reclamation, water-physical and physico-mechanical bonitation of soils and expresses the specifics for all genetic layers of soils of various types and types. According to the mechanical and microaggregate composition of soils, geomorphological areas with their own specifics are distinguished. These soils are mechanically composed of loam, light, medium, heavy loam.