Zoning Risk of Mass Movements using Information Value Model, Surface Density and LNRF in the Watershed Zohreh

Iran because of its natural characteristics and morphology has been exposed to many natural hazards. Mass movements and slope instability are major dangers to human activity that often leads to loss of economic resources, damage to property are established. These issues need mass movement’s hazard zonation as the first step in the right environmental management explains this phenomenon. The study aimed to zonation of mass movement’s hazard in Venus watershed of Fars Province.  At first important factor affecting the data layers 10 in the mass movements such as lithology, slope, elevation, current use of the land, rainfall, temperature, slope, distance from roads, distance from fault, and distance from the river preparation and were digitized. Then, using aerial photo interpretation and field work, all the mistakes in the field, identifying and maps were presented.  The integration of independent and dependent variables of mass movements and the weighting factor classes in each class, based on the models of intelligence value, density and LNRF took place. Finally hazard map for a mass movement to integrate the various layers of weightlessness on different models.  The results show that the method further intelligence value in terms of compliance with the mass movements of high-risk zones as well as the ability to separate classes of risk, performance is better than the other two methods, especially methods LNRF.