APPLICATION OF MEDALUS METHOD TO DEVELOP A REGIONAL MODEL FOR DESERTIFICATION ASSESSMENT AND MAPPING

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SEPEHR A.; MOAYERI M.; EKHTESASI M.R.; AGHAJANI S.

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Paper Information

Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2008 | Volume:61 | Issue:3 Page(s): 537-554

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Information Journal Paper

Title

APPLICATION OF MEDALUS METHOD TO DEVELOP A REGIONAL MODEL FOR DESERTIFICATION ASSESSMENT AND MAPPING

Author(s)

SEPEHR A. | MOAYERI M. | EKHTESASI M.R. | AGHAJANI S. | Issue Writer Certificate

Keywords

DESERTIFICATIONQ3

MEDALUSQ3

GISQ3

FIDOYEH-GARMOSHTQ3

Abstract

The present study attempts to assess quantitatively the DESERTIFICATION process to develope a regional model in Fidoyeh- Garmosht plain in Fars province with area of 43000 ha as a case study. In this study, based on the MEDALUS method and according to the characteristics of child: area a regional model was developed using GIS. In the first step, all major factors affecting DESERTIFICATION were determined. These main six indicators (layers) included: soil, climate, erosion, plant cover, groundwater and management (for human activities). Then a number of sub-layers for each main layer affecting the quality of main layers were identified. To each sub-layer a number between "1 to 2" according to the MEDALUS method was denoted. These denoted numbers were considered as a weight for each sub-layer. GIS (ArcGIS 9) then was used to analyze data to prepare the main layer status maps using geometric mean for the sub layers and the main layers. Ultimately, the maps were combined and based on the geometric mean of the main layers, a DESERTIFICATION potential status map was developed. The results indicated that 12% of total study area classified as a very severe class, 81% is classified as a severe class and 7% of area classified as a moderate class of DESERTIFICATION. The results showed that plant cover and groundwater quality are the most important parameters that affecting DESERTIFICATION process in the Fidoyeh- Garmosht plain.

Cites

ASSESSMENT OF CURRENT DESERTIFICATION USING MODIFIED MICD MODEL (CASE STUDY: FAKHRABAD-MEHRIZ PLAIN)

References

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APA: Copy

SEPEHR, A., MOAYERI, M., EKHTESASI, M.R., & AGHAJANI, S.. (2008). APPLICATION OF MEDALUS METHOD TO DEVELOP A REGIONAL MODEL FOR DESERTIFICATION ASSESSMENT AND MAPPING. IRANIAN JOURNAL OF NATURAL RESOURCES, 61(3), 537-554. SID. https://sid.ir/paper/23177/en

Vancouver: Copy

SEPEHR A., MOAYERI M., EKHTESASI M.R., AGHAJANI S.. APPLICATION OF MEDALUS METHOD TO DEVELOP A REGIONAL MODEL FOR DESERTIFICATION ASSESSMENT AND MAPPING. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2008;61(3):537-554. Available from: https://sid.ir/paper/23177/en

IEEE: Copy

A. SEPEHR, M. MOAYERI, M.R. EKHTESASI, and S. AGHAJANI, “APPLICATION OF MEDALUS METHOD TO DEVELOP A REGIONAL MODEL FOR DESERTIFICATION ASSESSMENT AND MAPPING,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 61, no. 3, pp. 537–554, 2008, [Online]. Available: https://sid.ir/paper/23177/en

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