Почвоведение и агрохимия
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Почвоведение и агрохимия, №4, 2020 Table № 3 -Scale of the degree of stability of agricultural landscapes К ust degreeofstability 0,33 unstable 0,34…0,50 lowresistance 0,51…0,66 medium-stable 0,67…1,00 stable In accordance with the carried out expert evaluation of the coefficient of eco- logical stability ameliorated agrobiocenosis after reclamation amounted to K ust =0,51<0,66; and belongs to the catego- ry of "medium-stable", because of the con- stant impact of a number of factors of influ- ence (close occurrence of mineralized gro- undwater, the presence of pressure feed, saline profile of soils, significant evapora- tion of moisture against a high tempera- ture regime, etc.), as a result, it is necessary to constantly maintain the optimal soil rec- lamation regime through the use of envi- ronmentally sound agromeliorative mea- sures. CONCLUSION An assessment of the dynamics of humus content in reclaimed soils of the massif over the period under review (30 years) showed a slight increase.Since there was only a simple reproduction of the humus state of the soil (ΔG=0.5%), due only to the return of part of the biomass.The increase in humus content due to increasing the productivity of agricultural crops is not significant, i.e. the expanded reproduction of humus reserves, and as a result, the growth of soil fertility without the use of fertilizers is limited. Not a significant increase in the "soil index" indicator as a result of land reclamation activities (washing, sowing, irrigation) indicates the need to develop an additional set of measures to improve soil formation processes. The problem of extended reproduction of soil fertility should be solved exclusively from the standpoint of optimizing the water-physical, physical- chemical, agrochemical properties of the soil and regulating the biological cycle, and this is possible only when using complex reclamation. They should ensure that the disturbed balance of organic matter and chemical elements in the soil is restored to the required level. Artificially created ecosystems (agrocenoses) are highly productive, but low - and medium - stable ecological systems that require constant purposeful influence for their maintenance, without which they cannot exist. In this regard, it is necessary to conduct continuous soil- reclamation monitoring of agrocenoses, i.e. a system of regular observations, asses- sments and forecasts of the quality of reclaimed soils, the quality and quantity of irrigation, drainage and ground water, as well as the technical condition of hydro- reclamation systems. REFERENCES 1 Pankova E.I.,Bazilevich N. Secondary salinization of soils in Central Asia // Pro- ceedings of the IV Congress of the DokuchaevSoil Science Society, (SSS’ 04). - Novosibirsk, 2004. – pp. 471-480. 2 Kovda, V.A. Problems of Desertification and Soil Salinization in Arid Regions of the World.- - Nauka. - 1st Edn. – Moscow, 2008. 3 Saparov A. S., Shi, T. Abduwayli. Soils of the Arid Zone of Kazakhstan: The Current State and their use. - 1st Edn. - Polygraphy and Service K. - Almaty, 2014.–pp. 440. 4 BerezinL.V., Saparov A.S., Kan V.M., Shayakhmetov M.R. Technology of Complex |