Volume 24, Issue 3 (Fall 2020)                   JWSS 2020, 24(3): 209-222 | Back to browse issues page

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Shahabinejad N, Mahmoodabadi M, Jalalian A, Chavoshi E. The Influence of Soil Properties on the Wind Erosion Rate at Different Regions of Kerman Province. JWSS. 2020; 24 (3) :209-222
URL: http://jstnar.iut.ac.ir/article-1-3941-en.html
2. Department of Soil Science, Agriculture Faculty, Shahid Bahonar University of Kerman, Kerman, Iran. , mahmoodabadi@uk.ac.ir
Abstract:   (1430 Views)
Wind erosion is known as one of the most important land degradation aspects, particularly in arid and semi-arid regions. Soil properties, by affecting soil erodibility, can control the wind erosion rate. The aim of this study was to attribute the soil physical and chemical properties to the wind erosion rate for the purpose of determining the most important property. To this aim, wind erosion rates were measured in-situ at 60 points of Kerman province using a portable wind tunnel facility. The results indicated that wind erosion rates varied from 0.03 g m-2 min-1 to 3.41 g m-2 min-1. Threshold wind velocity decreased wind erosion rate following a power function (R2=0.81, P<0.001). Clay and silt particles, shear strength, mean weight diameter (MWD), surface gravel, dry stable aggregates (DSA<0.25mm), soil organic carbon (SOC), calcium carbonate equivalent (CCE) and the concentrations of the soluble Ca2+, K+ and Mg2+ were inversely proportional to the wind erosion rates following nonlinear functions. On the other hand, Wind erosion was significantly enhanced with increasing the sand fraction, soluble Na+, electrical conductivity (EC) and sodium adsorption ratio (SAR). According to the final results, among the studied soil properties, SAR and MWD were s the most effective properties controlling wind erosion in the soils of Kerman province. Therefore, it is recommended to consider suitable conservation practices in order to prevent the sodification and degradation of arid soils.
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Type of Study: Research | Subject: Ggeneral
Received: 2019/10/5 | Accepted: 2020/04/8 | Published: 2020/11/30

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