Document Type : Research Paper
Authors
1 MSc, Soil Conservation and Watershed Management Research Institute, Iran
2 Scientific Board, Soil Conservation and Watershed Management Research Institute, Iran
3 Associate Professor, Soil Conservation and Watershed Management Research Institute, Iran
4 Assistant Professor, Soil Conservation and Watershed Management Research Institute, Iran
5 Assistant Professor, Soil Conservation and Watershed Management Research Institute, Iran
Abstract
Sand dunes developed in 15 provinces with an area of 4.4 million hectares and 56 Citadel, are one of the most important geomorphological features in Iran. Sand and desert stabilization technical office studies, according to project results identify focal and present four regions including Ahvaz, Dasht-e-Azadegan, Susa and the Omidiyeh in Khuzestan province. The mentioned area includes 279,505 hectares of land in Khuzestan. This study has used remote sensing technology, GIS techniques and analyzed effective recorded winds data. Toward were reviewed and analyzed the wind regime of the area for direction of source area using Windrose Diagrams. In this study, based on utilizing and composing of image processing techniques such as image enhancement, threshold, false color composition, filtering and analysis and results of wind data analysis, with other investigations is useful to find the source of sand dunes. The results from direction of source area confirm that source of sand dune located in NW to W, notice Windrose in Khuzestan. The source area are flood alluvial fan plain, alluvial fan, agriculture land, meandering rivers and sensitive formation to erosion including Aghajari formation and Bakhtiari formation that located in the in NW to W section.
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