THE STUDY ON THE VARIATION OF SOME PHYSICAL INDICES OF THE LOESS SOILS QUALITY ALONG CLIMATIC TRANSECT IN GOLESTAN PROVINCE

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JAFARI HONAR A.; KIANI F.; KHORMALI F.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:5 | Issue:3 Page(s): 65-79

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Title

THE STUDY ON THE VARIATION OF SOME PHYSICAL INDICES OF THE LOESS SOILS QUALITY ALONG CLIMATIC TRANSECT IN GOLESTAN PROVINCE

Author(s)

JAFARI HONAR A. | KIANI F. | KHORMALI F. | Issue Writer Certificate

Keywords

ERODIBILITY INDICESQ2

LOESS SOILSQ2

SOIL SPECIFIC SURFACEQ2

AGGREGATE STABILITYQ2

Abstract

Background and Objectives: According to the difficulty of the soil erodibility concept, some indicators have been used for its evaluation. Climate as one of the soil formation factors, has a major impact on the indicators. The present study was done in order to determine the effect of different climates on physical indicators of the quality of LOESS SOILS in Golestan province.Materials and Methods: In order to the study, a climosequence of north-east to south-west in the sloping loess hills of the Province with pasture and in different climate conditions was chosen. Samples were taken from seven areas with six replications and from the depths of 0 to 30 and 30 to 60 cm along the climosequence. Amezketa, plasticity, SOIL SPECIFIC SURFACE, cation exchange capacity and soil texture indicators were measured.Results: The results showed that the changes in some of the indicators in the climosequence follow a particular trend. The changes in the average of the Amezketa index, along the climosequence, was variable from 0.05 to 0.23 and do not follow a specific trend. The changes in the SOIL SPECIFIC SURFACE were variable from 51.95 to 145.52 m2/gr. The changes in the plasticity, SOIL SPECIFIC SURFACE and cation exchange capacity along both transect increased and Amezketa index, by increasing the rainfall, increased along climosequence.Conclusion: According to the results, aggregate formation and AGGREGATE STABILITY with the soil particle size ratio, caused the changing of the ERODIBILITY INDICES of LOESS SOILS.

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APA: Copy

JAFARI HONAR, A., KIANI, F., & KHORMALI, F.. (2015). THE STUDY ON THE VARIATION OF SOME PHYSICAL INDICES OF THE LOESS SOILS QUALITY ALONG CLIMATIC TRANSECT IN GOLESTAN PROVINCE. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(3), 65-79. SID. https://sid.ir/paper/209803/en

Vancouver: Copy

JAFARI HONAR A., KIANI F., KHORMALI F.. THE STUDY ON THE VARIATION OF SOME PHYSICAL INDICES OF THE LOESS SOILS QUALITY ALONG CLIMATIC TRANSECT IN GOLESTAN PROVINCE. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;5(3):65-79. Available from: https://sid.ir/paper/209803/en

IEEE: Copy

A. JAFARI HONAR, F. KIANI, and F. KHORMALI, “THE STUDY ON THE VARIATION OF SOME PHYSICAL INDICES OF THE LOESS SOILS QUALITY ALONG CLIMATIC TRANSECT IN GOLESTAN PROVINCE,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 5, no. 3, pp. 65–79, 2015, [Online]. Available: https://sid.ir/paper/209803/en

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