Mechanism of geomorphologic creation and development of gullyin the winter-quarter of Haj Mohammad in the northern slope ofkhoroslu in Ardebil
Duo to the status quo and capability of eradication with respect to lithology,pedology and topography, the northern part of Khoroslu region has but an extremepotential of gully erosion regarding to mass movements such as slip, slide, etc. for itsunstable soil. Because of Soil erosion and degradation in this region a large amount ofcultivatable soil is in danger. Nevertheless it is of great significance to study andscrutinize the important factors in creation and development of gullies in the region.In evaluating the origin and features of gully creation and development the role oftopographic and morphogenesis elements is regarded. According to examinations onthe studied region, slope, height, difference and existing materials have been known asthe most important factors in gully creation and development. In this research 29active gullies regarding geomorphologic features are selected. Length, depth, widthand height of the gullies as well as the height of their slope is determined and the dataare analyzed by means of Excel Spss software. The result shows that 0.1% of thechanges in gullies is because of changes in length which compared to the heightchanges is less effective. So the increase in height raises the slope and the congestionof soil then the development of gullies is reduced. Finally the long and deep gullies inhigher slope areas are less common compared to lower slope.
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