Volume 26, Issue 2 (ُSummer 2022)                   JWSS 2022, 26(2): 135-153 | Back to browse issues page


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malekian1 A, jafarazdeh A, oustan S, servati M. Study of Soil Change and Evolution-Landscape of Chaldoran Region, Northwest of Iran. JWSS 2022; 26 (2) :135-153
URL: http://jstnar.iut.ac.ir/article-1-4101-en.html
University of Tabriz , ashraf.malekian@gmail.com
Abstract:   (179 Views)
To study the soil-landscape change in the Chaldoran region, 9 representative soil profiles were studied in 5 dominant geomorphic units of the study area including piedmont plain, mantled pediment, alluvial fan, plain, and flood plain. The results showed that the accumulation of pedogenic carbonate in some soils was concretion and light in color. In control soils in the piedmont plain (profile 5 and 7), mantled pediment (profile 6), and flood plain (profile 8) clay transferred from the surface horizons and accumulated in the lower horizon, due to relatively good rainfall in the region and distinct dry and wet seasons has led to the formation of argillic horizons along with the formation of crust on the surfaces of aggregates and building units and has formed the Alfisoils order. Mineralogical results showed the presence of chlorite, illite, kaolinite, and smectite minerals. According to the evidence, illite, chlorite, and kaolinite minerals were inherited and smectite minerals were formed due to weathering and evolution of illite, chlorite, or palygorskite minerals. Also, the results of the CIA index in the region indicated that the soils of the region are in the stage of weak to moderate weathering. In general, the results indicated the critical role of drainage, land use, and parent materials in the soils of the study area.
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Type of Study: Research | Subject: Ggeneral
Received: 2020/12/1 | Accepted: 2021/08/14 | Published: 2022/09/1

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