Volume 21, Issue 4 (Winter 2018)                   jwss 2018, 21(4): 189-200 | Back to browse issues page


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Vali A, Roustaei F. Investigation of the Wind Erosion Trend in Central Iran using Dust Storm Index in the Last Fifty Years. jwss 2018; 21 (4) :189-200
URL: http://jstnar.iut.ac.ir/article-1-3326-en.html
1. Dept. of Combating Desertification, Faculty of Natural Resour. and Earth Sci., University of Kashan, Iran. , vali@kashanu.ac.ir
Abstract:   (8501 Views)

Wind erosion is the most important geomorphic process and the main cause of the landscape change in arid and semi-arid areas. This paper focuses on the Dust Storm Index (DSI) with the aim of monitoring wind erosion in Central Iran using meteorology data. The trend of standardized DSI and its three factors which are sever dust storm, moderate dust storm and local dust events were studied using Man-Kendal non-parametric test. It was found that wind erosion is accelerating in recent years. Compared to primary 20 years (1965-1985) DSI rate has been three times more than 30 years ago (1985-2014). The central and southern parts of Central Iran show the highest severity of wind erosion and the severity of DSI decreases by approaching the north. Therefore, considering the sensitivity of these areas, in addition to taking into account prevention programs, they should also be considered in regeneration and control programs.
 

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Type of Study: Research | Subject: Ggeneral
Received: 2016/08/28 | Accepted: 2017/03/15 | Published: 2018/02/12

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