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dc.contributorQadir, Manzooren_US
dc.contributorNoble, Andrewen_US
dc.contributorVyshpolsky, F.en_US
dc.contributorAnzelm, Karlen_US
dc.creatorKarimov, Akmalen_US
dc.identifier.citationAkmal Karimov, Manzoor Qadir, Andrew Noble, F. Vyshpolsky, Karl Anzelm. (1/6/2009). Development of Magnesium-Dominant Soils Under Irrigated Agriculture in Southern Kazakhstan. Pedosphere, 19 (3), pp. 331-343.en_US
dc.description.abstractIrrational irrigation practices in the Arys Turkestan Canal command area in the southern part of Kazakhstan have led to the formation of soils with poor physical and chemical properties. To study whether irrigation and leaching practices and/or groundwater rise have contributed to the accumulation of Mg2+ on the cation exchange complex of these soils, historical changes in soil and groundwater quality were used as source data and the Visual MINTEQ model was applied to analyze the chemical composition of water and soils in the study area. The imposed irrigation regime and the leaching of light sierosem soils led to the dissolution and subsequent leaching of inherent gypsum and organic matter from the soil profile. Further, the domination of bicarbonate in the irrigation water promoted weathering of the carbonate minerals present as calcite. The higher concentrations of Mg2+ in comparison to Ca2+ in the irrigation water resulted in the replacement of Na+ by Mg2+ on the cation exchange complex. In the lower part of the command area, shallow groundwater has contributed to the accumulation of Na+ and to a large extent of Mg2+ on the cation exchange sites.en_US
dc.sourcePedosphere;19,(2009) Pagination 331,343en_US
dc.subjectexchangeable magnesiumen_US
dc.subjecthigh-magnesium soil and wateren_US
dc.titleDevelopment of Magnesium-Dominant Soils Under Irrigated Agriculture in Southern Kazakhstanen_US
dc.typeJournal Articleen_US
cg.subject.agrovocland degradationen_US
cg.contributor.centerInternational Water Management Institute - IWMIen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerMinistry of Agriculture of Kazakhstan, The Kazakh Research Institute of Water Management - KazNIIIVHen_US
cg.contributor.centerThe Regional Environmental Centre for Central Asia - CARECen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionCentral Asiaen_US
dc.identifier.statusLimited accessen_US

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