Survey of the Balance of Equilibrium Erosion in the Hajiabad River Watershed (Hormozgan Province) using the Entropy Model

  Erosion is a surface-leveling phenomenon where thetransportof sediments from being washed off the land or by the force of gravity move from elevated areas. During different periods, in Iran, constantly flowing water has been affected by erosion. Thus it is important to address the erosionproblem. This research attempts to assess and identify the parameters affecting erosion in Haji Abad Watershed (Hormozgan Province). Investigation of the kind of mathematics-based analytics determined the most important parameters affecting erosion: slope, geology, soil type, and plant. In the basin, this study identified and subsequently used AHP and health weight category, which were important to all evaluated classes, which were statistically determined. Next, by using the Entropy Shanonmodel, the amount of distribution of unbalanced classes in each one of the effective parameters of erosion in the basin under study were clear. The results show that in a slope greater than 15%,with the entropy coefficient of 0.53 there is a balanced distribution in the basin and the amount of erosion in different parts of the basin are influenced by the slope. The geological formation in the basin, the quaternary formation and erosion are more susceptible than the entropy factor of 0.635 distribution in the basin, which are almost balanced. In addition, to soils with light texture (ratio: 0.94), and on land and pasture catchment (ratio 0.90), both of which have a high erosion, have a normal distribution. We presented methods for erosion management in the watershed.