تحليل و بررسي نقش عوامل توپوگرافي و مرفوژنز در خندق زايي /مطالعه موردي : دامنه هاي شمالي قوشه داغ بين اهر و مشكين شهر)

The Analysis and Research on Role of Topographical and Morphological on Gulling

As the result of gully invention and development in study area, more amount of susceptible soil for cultivation, delivering on slopes into drainage density. Because, for this reason, research and study on invention and development of gullies in study area, are very very important. The role of morphogenic and topographic factors, taking into account in the research of cause and factors of gulling. The gradient, length and shape of slopes .relative relief-as the most important topographical factors influence on runoff and increase or decrease power of erosive force of runoff, playing the most important role. In this article have been analyzed the role of topographical factors on regression head of gullies by used of quantities methods .The results of this analysisʹs show that, the shore of slopʹs lengthen on development of head gullies in study area is more than other topographical factors .So that as ,if slop of length increase and hold constant other factors, potential of soil erosion on slopes will increase to .equal 2.5 times.