Investigation of Changes in Clay Minerals and Soil Manganese Status in the Surface and Subsurface of Paddy Soils with Long-term Rice Cultivation in Fars Province

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SHAKERI SIROUS; BAGHERNEJAD MAJID; GHOLAMI ABDOLSAMAD; AZADI ABOLFAZL

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Journal: Iranian Journal of Soil and Water Research Year:2021 | Volume:52 | Issue:2 Page(s): 345-360

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Title

Investigation of Changes in Clay Minerals and Soil Manganese Status in the Surface and Subsurface of Paddy Soils with Long-term Rice Cultivation in Fars Province

Author(s)

SHAKERI SIROUS | BAGHERNEJAD MAJID | GHOLAMI ABDOLSAMAD | AZADI ABOLFAZL | Issue Writer Certificate

Keywords

Clay MineralsQ2

Manganese FormsQ1

Paddy and Non-Paddy SoilsQ1

Abstract

Waterlogging is an important factor, affecting soil properties. This research was conducted to evaluate the effect of waterlogging on secondary soil Clay Minerals, as well as manganese (Mn) of paddy soils with long-term rice cultivation in Fars province. In each region, two soil proﬁ les in paddy and non-paddy fields were digged on calcareous parent materials and the same landform in a pairwise manner. Analysis of the clay mineralogy indicated that the long-term rice cultivation seems to have an influence on the quantity of Clay Minerals, as indicated by higher smectite in paddy soils. But, higher chlorite, illite and palygorskite was found in non-paddy soils. Clay Minerals were probably affected more by parent materials and less by the aquatic condition. Chlorite and illite were observed in both Paddy and Non-Paddy Soils and increased with depth due to their presence in parent rocks. Transformation of illite to smectite in the A horizon increased relative abundance of smectite but it decreased with depth. The results showed that the paddy soils have more available Fe and Mn (extracted by DTPA), total Fe and Mn (extracted by HNO3), and poorly crystalline Fe and Mn oxides (extracted by Ammonium oxalate), compared to the non-paddy soils and the surface horizons of paddy soils showed the highest rates. Also, the long-term cultivation of rice decreased the content of pedogenic (extracted by CitrateBicarbonate-Dithionite) and crystalline Mn oxides.

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APA: Copy

SHAKERI, SIROUS, BAGHERNEJAD, MAJID, GHOLAMI, ABDOLSAMAD, & AZADI, ABOLFAZL. (2021). Investigation of Changes in Clay Minerals and Soil Manganese Status in the Surface and Subsurface of Paddy Soils with Long-term Rice Cultivation in Fars Province. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 52(2 ), 345-360. SID. https://sid.ir/paper/398153/en

Vancouver: Copy

SHAKERI SIROUS, BAGHERNEJAD MAJID, GHOLAMI ABDOLSAMAD, AZADI ABOLFAZL. Investigation of Changes in Clay Minerals and Soil Manganese Status in the Surface and Subsurface of Paddy Soils with Long-term Rice Cultivation in Fars Province. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2021;52(2 ):345-360. Available from: https://sid.ir/paper/398153/en

IEEE: Copy

SIROUS SHAKERI, MAJID BAGHERNEJAD, ABDOLSAMAD GHOLAMI, and ABOLFAZL AZADI, “Investigation of Changes in Clay Minerals and Soil Manganese Status in the Surface and Subsurface of Paddy Soils with Long-term Rice Cultivation in Fars Province,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 52, no. 2 , pp. 345–360, 2021, [Online]. Available: https://sid.ir/paper/398153/en

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