DETERMINATION THE MOST IMPORTANT PHYSICAL AND MECHANICAL SOIL PROPERTIES ON INCREASING CROSS SECTIONS IN ARDEBIL PROVINCE

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SHAHAB H.; EMAMI H.; HAGH NIA GH.H.; ESMALI A.

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Journal: Journal of Water and Soil Year:2017 | Volume:30 | Issue:6 Page(s): 2060-2077

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Title

DETERMINATION THE MOST IMPORTANT PHYSICAL AND MECHANICAL SOIL PROPERTIES ON INCREASING CROSS SECTIONS IN ARDEBIL PROVINCE

Author(s)

SHAHAB H. | EMAMI H. | HAGH NIA GH.H. | ESMALI A. | Issue Writer Certificate

Keywords

FACTOR ANALYSISQ2

HEAD CUTQ1

TOPOGRAPHIC THRESHOLDQ2

TUNNEL EROSIONQ1

Abstract

Introduction: Gully erosion is an important type of soil erosion in Iran and Ardebil province (Moghimi and Salami, 2011; Khatibi, 2006). Increasing the cross section of gullies is an indicator for gully developing (Deng et al, 2015). Topography and soil properties are two important factors in gully developing in various regions of worldwide (Poesena et al, 2003). Despite the importance of soil properties in gully erosion, the direct effect of these agents was less investigated and few researches have been carried out to the effect of physical and mechanical soil properties on gully erosion. Therefore, the objectives of this research were to determine 1) the effect of topography on gully erosion, 2) effect of surface and subsurface soil physical and mechanical properties on increasing the cross section of gullies and 3) to select the most important soil properties affect developing the cross section of gullies in three regions of Ardebil province (Ortadagh, Molla Ahmad, and Sarcham). In addition, the relationship between the most soil properties and topographic agents was investigated.Materials and Methods: The effect of topography on gully erosion was investigated by using of two methods i.e. TOPOGRAPHIC THRESHOLD of gully forming (as S = aAb, where A and S is gully watershed cross section and slop, respectively, a and b is local coefficients) and the relationship between slope classes with gullies density. In regard to catchment characteristics, a set of similar gullies was selected in each region and the changes of cross section area for gullies in four points along its length were measured as indicator of gully development during two years.17 physical and mechanical of surface and subsurface soil properties in each point were measured and the most important properties that affect on gully development were selected based on principle component analysis (PCA) method. Finally, the stepwise regression model was fitted to the soil properties selecting from PCA for gully's development in each region.

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APA: Copy

SHAHAB, H., EMAMI, H., HAGH NIA, GH.H., & ESMALI, A.. (2017). DETERMINATION THE MOST IMPORTANT PHYSICAL AND MECHANICAL SOIL PROPERTIES ON INCREASING CROSS SECTIONS IN ARDEBIL PROVINCE. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 30(6 ), 2060-2077. SID. https://sid.ir/paper/141801/en

Vancouver: Copy

SHAHAB H., EMAMI H., HAGH NIA GH.H., ESMALI A.. DETERMINATION THE MOST IMPORTANT PHYSICAL AND MECHANICAL SOIL PROPERTIES ON INCREASING CROSS SECTIONS IN ARDEBIL PROVINCE. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2017;30(6 ):2060-2077. Available from: https://sid.ir/paper/141801/en

IEEE: Copy

H. SHAHAB, H. EMAMI, GH.H. HAGH NIA, and A. ESMALI, “DETERMINATION THE MOST IMPORTANT PHYSICAL AND MECHANICAL SOIL PROPERTIES ON INCREASING CROSS SECTIONS IN ARDEBIL PROVINCE,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 30, no. 6 , pp. 2060–2077, 2017, [Online]. Available: https://sid.ir/paper/141801/en

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