Present research was conducted with the aim of determination of significant effect of soil properties on natural regeneration of Haloxylon aphyllum and correlation coefficient and linear relation between soil variables and natural regeneration of Haloxylon aphyllum. Firstly, geomorphologic units were prepared in the areas under cultivation of Haloxylon aphyllum in Ardestan. Two cultivated lands...

the proposal of geomorphologic matters in relation to tourism is one of interdisciplinary research approaches that has been considered in recent years. in this manner, geomorphological sites are defined as geomorphological landforms and processes that have acquired a scenic/aesthetic, scientific, cultural/historical and/or a social/economic value due to human perception of geological, geomorpho...

condition of contour lines in topographic maps, explains more geomorphologic issues such as effective processes in the land forms found in nature. change in the curvature of the transverse profile of a valley in mountainous areas, the peak of the mountain range, also reflect the geomorphologic features and expresses the tectonic events and climate changes occurring in the region. these changes ...