نتایج جستجو برای: sensitivity to erosion

تعداد نتایج: 10666752  

Journal: :مرتع و آبخیزداری 0
ابراهیم گویلی فار غ التحصیل دورة کارشناسی ارشد مرتع داری دانشکدة منابع طبیعی دانشگاه صنعتی اصفهان محمدرضا وهابی استادیار دانشکدة منابع طبیعی دانشگاه صنعتی اصفهان فاضل امیری دانشیار گروه منابع طبیعی دانشکدة مهندسی دانشگاه آزاد اسلامی، واحد بوشهر حسین ارزانی استاد دانشکدة منابع طبیعی دانشگاه تهران

this research was conducted to recognize sibak-sardab watershed rangeland potentials, evaluate and determine of suitability classes for sheep grazing. in this research, we used the proposed method of fao (1992) and for information layers crossing used in geographical information system (gis). in this research, sensitivity to erosion, water resources and forage production are three basic compone...

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Erodibility of basin formations is depends on their resistance versus of erosion. In a basin are not the same stones, their resistance and covering area. Obviously, formations sensitivity versus of erosion are determining rate of sediment production in a river. In this research has been analysis formation erodibility versus of erosion in the Sajjadrud basin. Research methods are descriptive–ana...

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Prioritization of watershed basins includes classification of sub-basins on the basis of the existing conditions and erosion intensity, which ultimately leads to protective operations and watershed management in more significant and susceptible sub-basins. In this research, in order to prioritize Ghezel Owzan-Sefidrud sub-basins against sensitivity to erosion, linear and form-based morphometric...

Journal: Desert 2011
A Sadoddin D Akhzari V Sheikh

Wind erosion is a major environmental issue affecting land resources and socio-economic settings in Iran. This paper outlines a study undertaken to provide a new tool to manage wind erosion from physical and economic perspectives. The southern part of the Varamin Plain in south of Tehran is used as a case study. The focus of this study is on exploring the economic and physical impacts of 16 veg...

Journal: Desert 2012
H. Ahmadi M. Yadegari M.A. Saremi Naeini

In order to recognize the wind erosion situation of a region, the survey of its windiness is not sufficient and the physical characteristics of earth are of importance too. In fact, the outbreak of dust storms in a region is due to the sensitivity of earth and domination of wind in that region. In this investigation we have tried to find a way for determining the regions in which a dust storm i...

Journal: :desert 0
h. ahmadi professor, science and research branch, islamic azad university, tehran, iran m.a. saremi naeini msc graduate, university of teheran, karaj, iran m. yadegari retired engineer, abadan refinery, abadan, iran

in order to recognize the wind erosion situation of a region, the survey of its windiness is not sufficient and the physical characteristics of earth are of importance too. in fact, the outbreak of dust storms in a region is due to the sensitivity of earth and domination of wind in that region. in this investigation we have tried to find a way for determining the regions in which a dust storm i...

اسمعلی‌عوری, اباذر, حاجی, خدیجه, مصطفی‌زاده, رئوف, نظرنژاد, حبیب,

Prioritization of critical sub-watershed is an important procedure to control runoff and erosion phenomenon and considered as effective way in management of watersheds and achieving sustainable development. The main aim of this study is assessing the soil erosion-prone areas and prioritization of 30 hydrologic response unit of Rozehchai Watershed that located in West Azerbaijan province (186.41...

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