Evaluating of Sediment Delivery Ratio on Spatial and Temporal Variabilities in Semiarid Watershed Brazil

Predication of sediment delivery ratio in a small agricultural watershed

An Investigation on Selecting Cartographic Scales on Sediment Delivery Ratio in Jamash Watershed

Multicipality inputs of different analysis of digital data in modern methods of map processing causes the changes in results of erosion and sediment models. In this context, selecting a cartographic scale as the major input of spatial data has become a challenge issue in erosion and sediment modeling. Therefore, in this study, using topographic maps and selecting to spatial scales (1:25000 and ...

Evaluating the Spatial-Temporal Variations of Rainfall Erosivity and Erosivity Density (A Case Study: Menderjan Watershed, Isfahan Province)

Rainfall erosivity is one of the factors determining the amount of water erosion in the soil. Rainfall erosivity is determined by the  total rainstorm energy and the maximum intensity in 30 minutes (I30). Since rainfall erosivity is closely related to the amount and intensity of rainfall, it is expected that the rainfall erosivity would change monthly and seasonally throughout the year. The mai...

Determination of optimized sediment rating equation and its relationship with physical characteristics of watershed in semiarid regions: A case study of Pol-Doab watershed, Iran

Managers always consider the precise estimation of sediments in watersheds due to various conditions, such assoil and water resources management, construction, infrastructure and economical and social issues. In this condition,an optimized determination of sediment rating equation (typical method until now for sediment yield estimation) isessential to investigate sediment yield in rivers. In th...

Spatial Assessing of cost-effectiveness of check dams in controlling sediment load (Case study: Kond watershed)

Extended abstract 1- Introduction Evaluation is a process of assessing the degree of achievement to determined goals. In the meantime, choosing the right method for evaluating the effects will have a significant role on the results and management strategies. Therefore, considering the importance of check dams in watershed management programs in Iran, in this study, performance of check dams i...