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Showing 1 to 15 of 15 for “"erosion models"”.
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Soil Erosion from Forest Haul Roads at Stream Crossings as Influenced by Road Attributes
… mitigate problematic road attributes and reduce erosion and sediment delivery. Three erosion models, USLE-forest, RUSLE2, and WEPP were compared to trapped sediment data from the 37 forest haul road stream crossing approaches in the first study. The second study assessed model performance from …
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A reassessment of the genesis of the Sangamon stone line and texture contrast profile in McDonough County, western Illinois
… as former surface lags fanned by hillslope erosion owed to changes in environment, mainly climate. According to erosion models, texture contrast soils with stone lines are developed in two parent materials where the stone line separates an underlying, truncated, often fine-textured …
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Temporal and Thermal Effects on Fluvial Erosion of Cohesive Streambank Soils
… United States, the annual cost of on-site soil erosion problems such as soil and nutrient losses, and off-site soil erosion problems such as sedimentation of lakes and river, loss of navigable waterways, flooding and water quality impairment, has been estimated at 44 billion USD (Pimentel, 1995; …
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Turbine blade erosion and the use of wind protection tape
… of wind turbine airfoils with leading edge erosion was investigated in this research. The tests were conducted on DU 96-W-180 wind turbine airfoil at three Reynolds numbers between 1 and 1.85 million and angles of attack spanning the low drag range of the airfoil. The airfoil was tested with …
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Urban Erosion Potential Risk Mapping with GIS
… (metals, nutrients, etc.) with it. Existing erosion models focus primarily on estimating erosion from agricultural watersheds. Methods are needed to predict areas with high erosive potential (EP) in urban watersheds. Highlighting highly erosive areas in urbanized watersheds allows for the …
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Comparing Rusle LS Calculation Methods across Varying DEM Resolutions
<p>Soil erosion is a global problem that reduces land productivity and causes environmental degradation. Soil erosion models, such as the Revised Universal Soil Loss Equation (RUSLE), are used to estimate the severity and distribution of erosion. The topographic factor (LS), which combines slope …
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Estimating Sediment Losses Generated from Highway Cut and Fill Slopes in the Lake Tahoe Basin
… nature. Therefore, understanding the erosion mechanisms (rainfall-runoff and dry ravel), the magnitude of erosion rates and the particle-size distribution (PSD) of the eroded material from these highly disturbed slopes, as well as quantifying the load reductions achieved through slope …
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The effects of selected corn-soybean tillage systems on rill cross-sectional geometry and soil erosion for two Illinois soils
… to measured sediment discharge and to soil erosion and sediment transport predicted by various models. In the experimental phase of this study, simulated rainfall and additional run-on water were applied to plots that had been subjected to alternative corn-soybean tillage treatments in two …
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Evaluation of Best Management Practices for Bladed Skid Trail Erosion Control and Determination of Erosion Model Accuracy and Applicability
… the majority of sediment is produced from erosion on highly disturbed areas, such as skid trails, haul roads, and log landings. Erosion from silvicultural activities not only has the potential to introduce sediment into waterways but can also decrease site productivity through the removal …
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Amorphous calcium phosphate nanocomplexes in dental film formulations
… was characterised using different diffusion/erosion models and was best described by a Higuchi mode with Fickian, non-Fickian and super case II transport kinetics depending on the type of ACP and the grade of HPMC used. The effect of a biofilm generated on the tooth surface to make the …
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Modelling near-bank flow hydraulics
River bank erosion models are a fundamental requirement for understanding the migration and evolution of river meanders, estimating the potential for land-loss and threat to floodplain infrastructure, and predicting the delivery of contaminated floodplain sediments to aquatic ecosystems. While …
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Soil Erosion and Modeling Following Closure Best Management Practices for Bladed Skid Trails in the Ridge and Valley Region
… operations. Roads and skid trail surfaces have erosion rates that are greater than the harvest area. Forestry best management practices (BMPs) have been developed to minimize erosion on skid trails, but few projects have compared the effectiveness of different BMPs for bladed skid trails in the …
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Advancements for the Numerical Simulation of Free Fall Penetrometers and the Analysis of Wind Erosion of Sands
… infrastructure will be subjected to increased erosion and scouring, endangering the people they are meant to protect. Understanding soil dynamics and fluid interaction is crucial to predict the effects of sand erosion. In particular, the study of wind erosion of sands in coastal dunes is …
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An Improved Water-Driven Sediment Yield Model for Cold Agricultural Regions
… world’s freshwater, typically from water-driven erosion occurring in agricultural regions, is a significant source of pollution and damage to the aquatic environment. Excess sediment erosion promotes the transport of phosphorus to lakes, which can increase cyanobacterial growth, cause …