THE STUDY OF EFFECTS OF URMIA LAKE ON PHYSICO-CHEMICAL PROPERTIES AND CLAY MINERALOGY OF SOILS IN DIZADJ DOL REGION OF URMIA

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KHANI M.; MANAFI SH.

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Journal: Journal of Water and Soil Conservation Year:2016 | Volume:23 | Issue:1 Page(s): 65-82

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Title

THE STUDY OF EFFECTS OF URMIA LAKE ON PHYSICO-CHEMICAL PROPERTIES AND CLAY MINERALOGY OF SOILS IN DIZADJ DOL REGION OF URMIA

Author(s)

KHANI M. | MANAFI SH. | Issue Writer Certificate

Keywords

WEST AZERBAIJANQ2

NATRIC HORIZONQ1

CLAY MINERALSQ2

NEOFORMATIONQ1

Abstract

Background and Objectives: In the soils of areas close to saline lakes, due to the transport of salts from saline water of lake, salinization of soils occurs and depending on cationic composition of these lakes, different types of soils such as saline, sodic and saline- sodic soils develop around saline lakes. Recognition of morphological, physico-chemical and mineralogical properties of these soils has a great of importance for their sustainable management.Materials and Methods: In order to study the effects of Urmia Lake on physicochemical and mineralogical properties of soils in Dizadj Dol region, 24 soil profiles in two soil sequences with the similar parent material, topography and climate were investigated. One of these sequences is affected by Urmia Lake and the other one is not affected.Results: According to the results, all of the profiles which have been affected by the Lake have NATRIC HORIZONs. NATRIC HORIZONs in these soils have been formed due to high amounts of sodium ions resulted from Urmia Lake. Varivace analysis of physico-chemical properties of these soils showed that the values of soil organic carbon, CEC, EC, exchangeable Na, ESP and pH of the two sequences were significantly different (P£0.01), but soil depth, clay content and calcium carbonate equivalent were not significantly different. Analysis of clay mineralogy showed that the clay mineral composition in these sequences were mostly smectite, illite, kaolinite, chlorite and vermiculite. Smectites and vermiculites in these soils are mainly of pedogenic origin and have been formed via transformation of illite. In the soils which have been affected by Urmia Lake, the main origin of smectites was NEOFORMATION process from soil solution. Illites, chlorites and kaolinite are inherited from parent material.Conclusion: Comparison of results in these two sequences showed that the uprise of Urmia Lake has led to low amount of organic carbon and to high amounts of EC, exchangable sodium, ESP, CEC, pH and higher amounts of smectite in the soils affected by Urmia Lake.

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APA: Copy

KHANI, M., & MANAFI, SH.. (2016). THE STUDY OF EFFECTS OF URMIA LAKE ON PHYSICO-CHEMICAL PROPERTIES AND CLAY MINERALOGY OF SOILS IN DIZADJ DOL REGION OF URMIA. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 23(1), 65-82. SID. https://sid.ir/paper/156585/en

Vancouver: Copy

KHANI M., MANAFI SH.. THE STUDY OF EFFECTS OF URMIA LAKE ON PHYSICO-CHEMICAL PROPERTIES AND CLAY MINERALOGY OF SOILS IN DIZADJ DOL REGION OF URMIA. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2016;23(1):65-82. Available from: https://sid.ir/paper/156585/en

IEEE: Copy

M. KHANI, and SH. MANAFI, “THE STUDY OF EFFECTS OF URMIA LAKE ON PHYSICO-CHEMICAL PROPERTIES AND CLAY MINERALOGY OF SOILS IN DIZADJ DOL REGION OF URMIA,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 23, no. 1, pp. 65–82, 2016, [Online]. Available: https://sid.ir/paper/156585/en

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