Research Article | OPEN ACCESS
Determining the Origin of Aeolian Sediments of Chah Nimeh4 Located at the Sistan Plain, Iran
1Hossein Negaresh and 2Mehdi Jadid Aleslami
1Faculty of Geography and Environmental Planning, University of Sistan and Baluchestan, Zahedan, Iran
2Department of Geology, Islamic Azad University, Zahedan Branch, Iran
Research Journal of Environmental and Earth Sciences 2013 9:516-524
Received: June 05, 2013 | Accepted: June 22, 2013 | Published: September 20, 2013
Abstract
In order to combat and control wind erosion of Sistan Plain, with an area of 8117 km2 and with a poor and dry climate, understanding the origin or areas of its wind deposits is of particular importance. To determine the origin of the sediments existing in reservoir of the Chah Nimeh 4, studying and comparing aerial photographs and satellite images from different periods, studying the winds in the area and its positioning include geomorphological study of the concerned area, sediment sampling of the sediments and performing required mineralogical tests. This study includes collecting local information about erosion, studying the general geomorphology and winds in the area. Therefore, an important purpose of this study was to identify the critical wind erosion Association (origins) and identification of the deleterious effects of wind. According to the obtained results, occurring drought in the area of Sistan and consequently reducing vegetation and making Hamoun Lake drought as well as 120-day winds have provided favorable conditions for wind erosion and occurring dust storms. It was estimated that the origin of existing sediments in the reservoir of Chah Nimeh is the erosive winds in the area from north to north-west and with 330 to 360º. The most important areas of deposits are abandoned land, sandy land-fields and puffy salt lake basin plain of Hamoun Lake and northern plains (in Afghanistan) in that sand storms and moving sandy plains are considered as threatening factors in the area.
Keywords:
120-day winds, chah nimeh 4, determining the origins, sand dunes, zabol,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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