Assessment of the Soil Cover in the Dried Aral Seabed in Kazakhstan and Climate Change in the Region
Issanova G. Abuduwaili J. Tynybayeva K. Kalybayeva A. Kaldybayev A. Tanirbergenov S. Ge Y.
December 2022Institute for Ionics
Water, Air, and Soil Pollution
2022#233Issue 12
The dried Aral seabed is a newly developed anthropogenic salty desert (Aralkum). It is a catastrophic region for all of Central Asia, including Kazakhstan. This research allows us to obtain a better understanding of the transported material properties from the dried seabed during soil deflation caused by storms. The seabed is mainly flat plains and undulating ridge plains. The main soil types of the desert are saline soils, including different kinds of solonchaks and sands. The soil texture is sandy loam, and the soils are calcareous and alkaline (pH 7.7–8.6). Carbonates in the soils range from 4.86 to 8.51%, and the soils are susceptible to deflation processes. The humus content in soils is very low (< 2%). The soil cover is contaminated with heavy metals such as Cd, Zn, Cu, and Mn, which can lead to air/water pollution and vegetation/soil degradation. The monitoring of climatic parameters has indicated aridification in the region. The mean monthly temperature and potential evaporation in the region increased by 2 °C (23.81%) and 76 kg m−2 (7.81%), respectively, from 1986 to 2020.
Aral Sea , Aralkum , Climate change , Heavy metals , Solonchak
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U.U. Uspanov Kazakh Research Institute of Soil Science and Agrochemistry, Almaty, 050060, Kazakhstan
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 818 South Beijing Road, Xinjiang, Urumqi, 830011, China
Faculty of Geography and Environmental Sciences, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Research Centre for Ecology and Environment of Central Asia, Almaty, 050060, Kazakhstan
U.U. Uspanov Kazakh Research Institute of Soil Science and Agrochemistry
Xinjiang Institute of Ecology and Geography
Faculty of Geography and Environmental Sciences
Research Centre for Ecology and Environment of Central Asia
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