This book summarizes the outcomes of research results based on field works and recent studies related to soil cover of the dried Aral seabed in Kazakhstan. The purpose of the work was to conduct a comprehensive assessment of the current state of the soil cover in the dried bed of the Aral Sea in order to study the processes that are occurring in the local soils as a result of anthropogenic impacts inducing soil degradation and desertification (e.g., soil salinization and deflation). Additionally, the book analyzes morphological characteristics and chemical-physical properties of soils in the dried bottom of the Northern Aral Sea in order to know how material properties can be transported during soil deflation in dust/sand/salt storms in the region, as well as to identify changes in long-term dynamics of aridization and climatic parameters such as temperature, precipitation and evapotranspiration in the Aral Sea region.
The novelty of this research is reflected in the latest information on the vertical and spatial distributions of soils and their chemical properties in the region containing the dried bed of the Aral Sea in Kazakhstan. Consequently, an updated soil map (soil salinization and salinization degree, land degradation) of the seabed was obtained according to the collected field data and satellite-derived images such as those recorded by Landsat-8. The book is mainly addressed to scientists and researchers who study soil cover in the dried Aral Seabed and its region, as well as soil degradation and desertification in the dried lake playas and aridization in other arid regions. The book will also be useful for students and planners who feel responsible for the sustainable development and sustainable use of natural resources in Central Asian countries.
Author(s): Gulnura Issanova, Jilili Abuduwaili, Kuralay Tynybayeva
Publisher: Springer
Year: 2023
Language: English
Pages: 96
City: Cham
Preface
Content and Structure of the Book
Acknowledgments
Contents
About the Authors
Abbreviations
Chapter 1: Introduction and Background on Environmental Changes in the Dried Aral Sea Region
1.1 Background of Research on Soil Cover and Environmental Changes in the Aral Sea and Its Region
1.2 Data Sources on Soil Cover and Research Methods
Field Soil Sampling
Chemical Lab Analysis of the Soils
Climate Data Mapping
Cartographic Materials and Satellite Data
References
Chapter 2: Environmental Conditions of the Aral Sea Region
2.1 Geographical Location
2.2 Geological Structure, Rock Formations, and Soil-Forming Rocks
2.3 Surface and Groundwaters and Their Quality/Quantity Changes
2.4 Climatic Conditions and Climate Change in the Region
2.5 Vegetation Cover and Its Degradation
References
Chapter 3: Origin of the Aralkum Desert (Dried Aral Seabed)
3.1 Shrinkage of the Aral Sea
3.2 Aralkum as a Source of Dust and Salt Storms
References
Chapter 4: Soil Cover of the Dried Aral Seabed (Aralkum)
4.1 Morphological Properties of the Soils
4.2 Chemical Composition of the Soils
Humus Content, Carbonates, and Acidity in Different Soil Types
Salts in the Soils and Salt Profiles
Heavy Metals in the Soils
4.3 Soil Texture
References
Chapter 5: Formation, Degradation, and Mapping
5.1 Soil-Forming Processes
5.2 Soil Types and Soil Transformation in Soil Properties and Types
5.3 Soil Degradation Processes
5.4 Soil Maps of the Seabed (1980s and 2020s)
References
Chapter 6: Conclusions
Chapter 7: Recommendations for the Rational Use of the Land and Water Resources in the Dried Aral Seabed Region
Index