Short Technical Report, Evaluation of desertification hazard potential in the Jaz-Murian region using wind-water erosion criteria

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SOLEIMANI SARDO M.; Ranjbar Forduei A.; MUSAVI S.H.

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Journal: Journal of Water and Soil Conservation Year:2019 | Volume:25 | Issue:6 Page(s): 303-310

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Title

Short Technical Report, Evaluation of desertification hazard potential in the Jaz-Murian region using wind-water erosion criteria

Author(s)

SOLEIMANI SARDO M. | Ranjbar Forduei A. | MUSAVI S.H. | Issue Writer Certificate

Keywords

IRIFR methodQ1

IMDPA modelQ1

Jaz-MurianQ2

Soil erosionQ2

Vegetation coverQ1

Abstract

Background and Objectives: Soli erosion plays an important role in desertification process that its evaluation leads to better understanding of desertification potential. The sparse Vegetation cover, low humidity and the scarcity of rainfall can make Jaz-Murian region prone to Soil erosion and desertification. The purpose of this study was to assess the potential of desertification in the Jaz-Murian region on the basis of erosion criteria and using IMDPA model. Materials and Methods: In this research, the work unit map was created using geology, land use maps and Landsat 8 satellite imagery data. Water erosion indices were weighted based on the IMDPA method and the IRIFR model was applied to evaluate wind erosion. Finally, in order to represent desertification hazard, the water and wind erosion criteria were combined with each other in ArcGIS 10. 1 software by calculating geometric mean of their indices. Results: The findings of this research showed that the largest area in this region (approximately 5674 km2) classified in high class of desertification hazard. This means that the erosion factor play an important role in desertification process in the Jaz-Murian region. The research findings showed that in comparison with water erosion, the wind erosion has a higher effects on desertification. The most important reasons for this are the low level lands, recent droughts and subsequently the reduction of the humidity that can help to separate the soil particles and increase the erodibility. Also, the results of estimation of erosion rate showed that the work units including: "clay plain covered by degraded Nebka and Reboh” , “ clay flat with separated Tamarix and Prosopis species” , “ clay and salty lands covered by dominant vegetation of Seidlitzia rozmarinus and Hamada salicornica” and “ Erg and sand dunes” showed the highest sensitivity to wind erosion that priority should be given to desertification plans aimed at controlling this phenomenon. Conclusion: According to the results obtained in this study, the majority of the studied area (97. 2%) is considered as a severe erosion criterion for desertification. In this regard, the need for more emphasis on the role of Soil erosion factor in the development of management plans to control the phenomenon of desertification in the region is of great importance. Therefore, restoring vegetation and protecting it from degradation, taking ecological considerations and prioritizing areas that are sensitive to erosion, can help to reduce the effects of erosion in the region and desertification.

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APA: Copy

SOLEIMANI SARDO, M., Ranjbar Forduei, A., & MUSAVI, S.H.. (2019). Short Technical Report, Evaluation of desertification hazard potential in the Jaz-Murian region using wind-water erosion criteria. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 25(6 ), 303-310. SID. https://sid.ir/paper/156430/en

Vancouver: Copy

SOLEIMANI SARDO M., Ranjbar Forduei A., MUSAVI S.H.. Short Technical Report, Evaluation of desertification hazard potential in the Jaz-Murian region using wind-water erosion criteria. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2019;25(6 ):303-310. Available from: https://sid.ir/paper/156430/en

IEEE: Copy

M. SOLEIMANI SARDO, A. Ranjbar Forduei, and S.H. MUSAVI, “Short Technical Report, Evaluation of desertification hazard potential in the Jaz-Murian region using wind-water erosion criteria,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 25, no. 6 , pp. 303–310, 2019, [Online]. Available: https://sid.ir/paper/156430/en

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