Rainfall simulation experiments on road batters in a forest catchment in New South Wales, Australia, demonstrated the limits of small scale erosion studies. Comparable erodibility studies were carried out on road surfaces, road batters constructed of soil, bedrock and unconsolidated materials and the forest surfaces. There was no significant difference in sediment loss between any type of site,...

Realistic modeling of infiltration, runoff and erosion processes from watersheds requires estimation of the effective hydraulic conductivity (Km) of the hillslope soils and how it varies with soil tilth, depth and cover conditions. Field rainfall simulation (RS) plot studies provide an opportunity to assess the surface soil hydraulic and erodibility conditions, but a standardized interpretation...

Mineral dust in the atmosphere has implications for Earth’s radiation budget, biogeochemical cycles, hydrological cycles, human health, and visibility. Currently, the simulated vertical mass flux of dust differs greatly among the existing dust models. While most of the models utilize an erodibility factor to characterize dust sources, this factor is assumed to be static, without sufficient char...

in the universal soil loss equation (usle), soil erodibility factor (k) is estimated through nomograph. using the nomograph in calcareous soils may lead to uncertainty in estimating the erodibility factor. this study was conducted in hashtrud, (north west of iran) from march 2005 to march 2006. field measurements were carried out in an agricultural area of 30 km × 30 km. thirty six land grids w...

[1] Soil erosion models are usually limited in their application to the field scale; however, the management of land resources requires information at the regional scale. Large‐scale physically based land surface schemes (LSS) provide estimates of regional scale hydrologic processes that contribute to erosion. If scaling issues are adequately addressed, coupling an LSS to a physically based ero...

investigation of desertification trend requires an understanding of phenomena that create changes singly or action and reaction together in an area that these changes were led to the desertification and land degradation. in the investigation of pedological criterion affecting on land degradation in alluvial fans, first, the map of units was created by overlaying and crossing maps of slope class...

pedological criterion affecting desertification in alluvial fans was investigated, for which the map of units was prepared by crossing maps of land use, geology, slope classes and grid layer created by the extension of et geo-wizards in arcgis 10.3. three indices of salinity, erodibility, and permeability of soil were considered and classified. weights of criteria and consistency ratio were cal...