عنوان مقاله [English]
نویسنده [English]چکیده [English]
Alluvial fans are one of the most important geomorphic features in arid and semi-arid
regions. In Mighan basin, because of it’s semi- arid conditions. The Alluvial fans can
be seen everywhere. The city of Arak is located on an alluvial fan that its Radial is 13
kilometers long. In regarding, there are other large alluvial fans in the Mighan basin
that are the location of a few villages and farms. In contrast, in south western of Arak,
there are many alluvial fans that didn’t provide and positive environmental condition.
This condition depends on stability of alluvial fans. For understanding these aspects of
alluvial fans, one should study their peculier morphometric characteristics. In such
studies, situation of shape, area and slope of alluvial fans, usually is analyzed with
geomorphology of their drainage basins. In this paper, results of the study between
area and slope of 24 alluvial fans with their drainage basins have been shown by
mathematical models and regression figures.