Investigation of Pedological criterion Affecting on Desertification in Alluvial Fans Using Nonparametric Tests, Case Study: South of Rude-Shoor Watershed Area

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SALEHPOUR JAM AMIN; SALEHPOUR JAM AMIN; MOSAFFAIE JAMAL; TABATABAEI MAHMOUDREZA

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Journal: Journal of Spatial Analysis Environmental Hazards Year:2019 | Volume:6 | Issue:3 Page(s): 1-14

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Title

Investigation of Pedological criterion Affecting on Desertification in Alluvial Fans Using Nonparametric Tests, Case Study: South of Rude-Shoor Watershed Area

Author(s)

SALEHPOUR JAM AMIN | SALEHPOUR JAM AMIN | MOSAFFAIE JAMAL | TABATABAEI MAHMOUDREZA | Issue Writer Certificate

Keywords

Erodibility_Salinity_Permeability_Prioritization_Friedman test_Kendalls' W testQ1

Abstract

Investigation of desertification trend needs an understanding phenomena creating changes singly or action and reaction together in the manner that these changes end up in land degradation and desertification. In the investigation of pedological criterion affecting on land degradation in alluvial fans, first, maps of slope classes, land use and geology were created, then a map of units was founded by overlaying and crossing these maps and grid layer created by extension of ET GeoWizards in ArcGIS 10. 3 software. In this research three indices of erodibility, salinity and permeability of soil were considered, finally according to the seven level scales, each of them was shown as the classified map. In this research, nonparametric methods of Friedman and Kendalls' W rank tests were used to prioritize the options, in the manner that after defining crisp numbers in seven level scales, the rank means were calculated. The rank means obtained from Friedman and Kendalls' W rank tests alter from 7/00 to 17/33. Obtained results from the nonparametric methods showed that 74/18 % (4245/77 ha) and 25/82 % (1477/67 ha) of the area were classified into two classes of medium and very heigh desertification potential, respectively. The results also showed that the youngest and old gravel fans of the area have desertification potential of very high (798/75 ha) and low (152/23 ha), respectively.

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APA: Copy

SALEHPOUR JAM, AMIN, MOSAFFAIE, JAMAL, & TABATABAEI, MAHMOUDREZA. (2019). Investigation of Pedological criterion Affecting on Desertification in Alluvial Fans Using Nonparametric Tests, Case Study: South of Rude-Shoor Watershed Area. JOURNAL OF SPATIAL ANALYSIS ENVIRONMENTAL HAZARTS, 6(3 ), 1-14. SID. https://sid.ir/paper/379911/en

Vancouver: Copy

SALEHPOUR JAM AMIN, MOSAFFAIE JAMAL, TABATABAEI MAHMOUDREZA. Investigation of Pedological criterion Affecting on Desertification in Alluvial Fans Using Nonparametric Tests, Case Study: South of Rude-Shoor Watershed Area. JOURNAL OF SPATIAL ANALYSIS ENVIRONMENTAL HAZARTS[Internet]. 2019;6(3 ):1-14. Available from: https://sid.ir/paper/379911/en

IEEE: Copy

AMIN SALEHPOUR JAM, JAMAL MOSAFFAIE, and MAHMOUDREZA TABATABAEI, “Investigation of Pedological criterion Affecting on Desertification in Alluvial Fans Using Nonparametric Tests, Case Study: South of Rude-Shoor Watershed Area,” JOURNAL OF SPATIAL ANALYSIS ENVIRONMENTAL HAZARTS, vol. 6, no. 3 , pp. 1–14, 2019, [Online]. Available: https://sid.ir/paper/379911/en

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