COMPARSION OF DIFFERENT SOIL DEVELOPMENT INDICES ALONG KERMAN-BAFT TRANSECT

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HOSSEINI S.S.; ESFANDIARPOUR BORUJENI I.; FARPOOR M.H.; KARIMI A.R.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:2 Page(s): 1-23

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Title

COMPARSION OF DIFFERENT SOIL DEVELOPMENT INDICES ALONG KERMAN-BAFT TRANSECT

Author(s)

HOSSEINI S.S. | ESFANDIARPOUR BORUJENI I. | FARPOOR M.H. | KARIMI A.R. | Issue Writer Certificate

Keywords

MAGNETIC SUSCEPTIBILITYQ2

SOIL DEVELOPMENTQ1

CLIMOTOPOSEQUENCEQ2

COLOR INDEXQ2

Abstract

Background and Objectives: Soil scientists have developed different mathematical equations and indices to be able to quantify SOIL DEVELOPMENT and to organize soil data. Soil properties will change during the SOIL DEVELOPMENT, which some changes can be made in the form of mathematical relationships as SOIL DEVELOPMENT indices. In this regard, soil morphological characteristics and laboratory data; have been considered by some researchers. Besides, attention to soil micromorphology as a method which can be associated with evidence relating to the sequence of pedogenic events and the processes which are not detectable by laboratory and field data, provided other developmental indices. The amount and distribution of extractable forms of iron in the soil profile are also indicated the stage and degree of SOIL DEVELOPMENT. The main objective of the present research was the comparison of different SOIL DEVELOPMENT indices (including forms and ratios of iron, MAGNETIC SUSCEPTIBILITY, color indices and modified Harden Index) related to different soils located on Kerman-Baft transect.Materials and Methods: Eight pedons on different geomorphic surfaces were selected during field studies. All genetic horizons of selected pedons were sampled and were transported to the laboratory for physical and chemical tests as well as MAGNETIC SUSCEPTIBILITY studies. The MAGNETIC SUSCEPTIBILITY of prepared samples in both high (chfbulk) and low (clfbulk) frequencies was measured by a Bartington magnetometer in soil science laboratory of Isfahan University of Technology. Finally, the percentage of frequency-dependent MAGNETIC SUSCEPTIBILITY (%cfd) was measured. In addition, undisturbed samples were taken from a number of horizons for soil micro morphological studies. The thin sections prepared for soil micro morphological studies were studied and interpreted based on Stoops guidline (2003) using a HP polarizing microscope.Results: Moving from Kerman toward Baft in the studied transect, due to increasing trend of elevation, more humidity was observed. That is why, pedogenic processes were also increased and iron forms and ratios showed this development trend regardless of local conditions. Due to effect of parent material lithology on soil minerogenic MAGNETIC SUSCEPTIBILITY, no significant relationship between this property and SOIL DEVELOPMENT indices was found. Correlation of various forms of Iron with three color indices of Harst, Torent and Alexunder showed that Harst Index was better than the other two indices for the study area. Moreover, since the parent materials of different pedons were not the same, the modified Harden Index was not adopted with SOIL DEVELOPMENT trend.Conclusion: Regarding the relationship between evolution and the age of the soil with various forms of iron, increasing the crystalline iron oxides from soil profile number 1 (dry climate) to soil profile number 8 (moist climate), represents a further evolution of soils.

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APA: Copy

HOSSEINI, S.S., ESFANDIARPOUR BORUJENI, I., FARPOOR, M.H., & KARIMI, A.R.. (2015). COMPARSION OF DIFFERENT SOIL DEVELOPMENT INDICES ALONG KERMAN-BAFT TRANSECT. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(2), 1-23. SID. https://sid.ir/paper/209943/en

Vancouver: Copy

HOSSEINI S.S., ESFANDIARPOUR BORUJENI I., FARPOOR M.H., KARIMI A.R.. COMPARSION OF DIFFERENT SOIL DEVELOPMENT INDICES ALONG KERMAN-BAFT TRANSECT. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(2):1-23. Available from: https://sid.ir/paper/209943/en

IEEE: Copy

S.S. HOSSEINI, I. ESFANDIARPOUR BORUJENI, M.H. FARPOOR, and A.R. KARIMI, “COMPARSION OF DIFFERENT SOIL DEVELOPMENT INDICES ALONG KERMAN-BAFT TRANSECT,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 2, pp. 1–23, 2015, [Online]. Available: https://sid.ir/paper/209943/en

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