USE OF THE 7BE RADIONUCLIDE FOR ESTIMATING SOIL REDISTRIBUTION RATES ON DRY FARMING LAND IN KERMANSHAH PROVINCE

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KHODADADI M.; GORJI M.; GHANADI MARAGHEH M.; SAMANI BAHRAMI A.; MIRSEYED HOSSEINI H.; ZAHEDI AMIRI GH.; MEFTAHI M.

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Journal: Journal of Soil Management and Sustainable Production Year:2015 | Volume:4 | Issue:4 Page(s): 127-148

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Title

USE OF THE 7BE RADIONUCLIDE FOR ESTIMATING SOIL REDISTRIBUTION RATES ON DRY FARMING LAND IN KERMANSHAH PROVINCE

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Keywords

7BEQ2

SOIL EROSIONQ2

FALLOUT RADIONUCLIDESQ2

PROFILE DISTRIBUTION MODELQ2

KERMANSHAH PROVINCEQ1

Abstract

Over the past decades, the FALLOUT RADIONUCLIDES 137Cs, 210Pbex and 7Be are increasingly being used to quantify SOIL EROSION and sedimentation rates. Although studies using 137Cs and to some extent 210Pbex are now well-documented, there is a need for further work aimed at exploring the use of 7Be, particularly in arid and semi-arid areas. Investigating SOIL EROSION processes occurring over shorter timescales, particularly individual storm events or short periods of heavy rainfall is the major advantages of 7Be method over the two other radionuclides. A hillslope 200 meter length, average slope of 8 percent and mean annual rainfall of about 480 mm, located in south west of Kermanshah was selected. Soil sampling was performed in April 2011, after occurring 150 mm rainfall in 40 days, along three transects. The 7Be activity in soil samples was measured by gamma spectrometry. The net erosion rate was estimated to be 6.8t ha-1 yr-1 by using PROFILE DISTRIBUTION MODEL. According to the short period, the high net SOIL EROSION rate is most likely the result of the mismanagement of the dry farm, cultivation operation along the main slope direction, the heavy rainfall occurring during the late winter and early spring seasons without major vegetative cover and the steep topography. The sediment delivery ratio was about 80 percent indicating that significant part of the mobilized soil was removed from field by erosion. The results confirm the potential for use of the 7Be technique to determine the soil redistribution associated with short periods in semi-arid area.

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APA: Copy

KHODADADI, M., GORJI, M., GHANADI MARAGHEH, M., SAMANI BAHRAMI, A., MIRSEYED HOSSEINI, H., ZAHEDI AMIRI, GH., & MEFTAHI, M.. (2015). USE OF THE ⁷BE RADIONUCLIDE FOR ESTIMATING SOIL REDISTRIBUTION RATES ON DRY FARMING LAND IN KERMANSHAH PROVINCE. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 4(4), 127-148. SID. https://sid.ir/paper/209878/en

Vancouver: Copy

KHODADADI M., GORJI M., GHANADI MARAGHEH M., SAMANI BAHRAMI A., MIRSEYED HOSSEINI H., ZAHEDI AMIRI GH., MEFTAHI M.. USE OF THE ⁷BE RADIONUCLIDE FOR ESTIMATING SOIL REDISTRIBUTION RATES ON DRY FARMING LAND IN KERMANSHAH PROVINCE. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION[Internet]. 2015;4(4):127-148. Available from: https://sid.ir/paper/209878/en

IEEE: Copy

M. KHODADADI, M. GORJI, M. GHANADI MARAGHEH, A. SAMANI BAHRAMI, H. MIRSEYED HOSSEINI, GH. ZAHEDI AMIRI, and M. MEFTAHI, “USE OF THE ⁷BE RADIONUCLIDE FOR ESTIMATING SOIL REDISTRIBUTION RATES ON DRY FARMING LAND IN KERMANSHAH PROVINCE,” ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, vol. 4, no. 4, pp. 127–148, 2015, [Online]. Available: https://sid.ir/paper/209878/en

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