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Showing 1 to 20 of 58 for “"infiltration rate"”.
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Artificial Intelligence-Based Prediction of Permeable Pavement Surface Infiltration Rates
… address urban stormwater runoff concerns through infiltration and storage. Overtime, sediments carried by stormwater runoff degrade the performance of these pavements and can eventually diminish the infiltration capacity to the point where no infiltration takes place. The objective of this …
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Zero tillage for cereal production on forage sods in Manitoba
… differences occurring in the surface 10 cm. Infiltration rate was higher under zero tillage than under conventional or minimum tillage when the previous forage crop consisted of approximately 30 percent alfalfa. When the previous forage contained only bromegrass, the infiltration rate into …
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Seal Development and Infiltration as Affected by Rainfall Kinetic Energy
<p>The infiltration of water into soil has been studied for more than 50 years. Much of the effort has concentrated on obtaining infiltration rate measurements for different soils and on developing equations which describe the resulting data. A portion of the infiltration literature has dealt with …
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Hydraulic Characterization of Interlocking Concrete Permeable Pavement
… Concrete Pavements, PICP explicitly infiltrate water, a new concept to engineering practice for pavements. This technology as a load-carrying surface has not yet been fully characterized nor has the decades of design and performance experience of conventional pavements. This research …
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Analysis Of Pervious Concrete As A Stormwater Management Tool Using Swmm Modeling
… of stormwater runoff. Lid controls include infiltration techniques such as pervious pavements, evaporation, and storage techniques to reduce the volume of runoff. In this study, an analysis is done for the performance of pervious concrete pavement located at the University of Mississippi Law …
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Vegetated Swales in Urban Stormwater Modeling and Management
… dam height, maximum check dam height, minimum infiltration rate, maximum infiltration rate, minimum Manning's n, maximum Manning's n, minimum longitudinal slope, and maximum longitudinal slope. Peak flow rate, volume, and time to peak for each scenario were compared to the watershed's existing …
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A Mesocosm Study of Bioretention Functionality Under Frozen Conditions
… of large impervious areas that prevent infiltration and introduce contaminants to stormwater. Bioretention is a green stormwater management strategy designed to restore natural hydrologic conditions in urban areas by promoting infiltration and removing contaminants at the source. …
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A study of infiltration trenches in unsaturated soil
Interest in infiltration structures to control peak runoff in urban areas has increased in recent years. The work reported here is a study of infiltration trenches in unsaturated soil. The infiltration rates and the water content distributions in soil calculated by Fok's model and a …
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Hydraulic design of pervious concrete highway shoulders
… hydraulic flume to determine capture discharges, infiltration rates, and by-pass flowrates for a broad range of void contents, across a broad range of pavement cross slopes. The results demonstrate that the capture discharge and infiltration rates are inversely related to the cross slope of the …
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Experimental evaluation of new pipe sleeve with weep holes for concrete leakage prevention
Mortar is a layer with high water absorption rate over concrete due to its porous structure. The mortar layer that frequently exposed to water or moisture is more likely to contain moisture in its layer. The example of area that is mostly exposed to water is the bathroom. The water infiltrated and …
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Trees and Structural Soil as a Stormwater Management System in Urban Settings
… of structural soil and trees that can be incorporated beneath pavement. Structural soil has a high load-bearing capacity yet is engineered to support tree root growth. Stormwater is directed into a structural soil reservoir below the pavement where tree roots can also thrive. Two container …
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To Mix or Not to Mix: Performance and Management of Diverse Cover Crop Mixtures
… grown in year 3 in all 12 treatments and four N rates were applied (0, 56, 112 and 156 kg N ha-1). Cover crop biomass, N accumulation, CC C:N ratio, and corn and soybean yield were measured annually. Soil bulk density, compaction, infiltration rate, pH, electrical conductivity, soil respiration, …
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Effects of tillage and mulching on selected soil properties, growth and yield of sunflower (Helianthus annuus L.)
… soil water content (SWC), bulk density (BD), infiltration rate (IR), cumulative infiltration (CI) and aggregate stability (AS). Sunflower plant parameters including plant height, leaf area index, dry matter at flowering stage (FS), total biomass at harvest maturity stage (HMS), head diameter, …
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Identifying controls on and potential solutions to storm water flooding in urban area- a case study of the UA campus
… through a field measurement campaign of infiltration rate, soil moisture, soil type, drainage system etc. The results of this analysis reveal that soil texture is quite homogeneous across campus (sandy loam) but with high degree of the spatial and temporal variation in infiltration rate …
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Switchgrass Cultivar, Harvest Frequency, Fertilizer Source, and Irrigation Effects on Near-Surface Soil Properties in West-Central Arkansas
… soil nutrients, root density, and surface infiltration. Irrigating switchgrass, which did not increase past biomass production, increased (<em>p</em> > 0.01) soil bulk density in treatment combinations where poultry litter was applied (1.40 g cm<sup>-3</sup>) compared to non-irrigated …
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Impact of Surface Application of Flue Gas Desulfurization Gypusum on Infiltration, Phophorus Behavior, and Total Sulfur in a Previously Manured Coastal Plain Soil
… experiment indicated a slight increase in final infiltration rate (FIR) at 10 and 15 Mg ha-1 application rates, however a laboratory rainfall simulation showed no significant effect of FGD gypsum on FIR. Water extractable phosphorus (WEP) decreased by 13-47% one year after application of FGD …
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Changes in soil properties and their effects on maize productivity following sesbania and pigeon pea improved fallow system in Eastern Zambia
… water aggregate stability and distribution, infiltration rate and soil water current. The highest survival seasons were recorded in S. sesban (92%) while pigeonpea had only (31%). at the end of the 10-week incubation period, the N mineralization of S.sesban (fres leaves and litter), reached …
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Análise de áreas desertificadas nos Cariris Velhos - PB.
… of Caraúbas to identify the level of the water infiltration rate. The other test was to collect soil for identifying patterns of fertility, held in Santo Domingo and Cariri Coxixola. The latter technique was based on the analysis of vegetation from a transect, held in Santo Domingo and Cariri …
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Symmetry methods applied to Richard's equations and problems of infiltration
… exploited intensively. Hence, knowledge of the infiltration process is a requirement for understanding water management.<br/><br/>The main aim here is to solve the one-dimensional nonlinear time-dependent Richard's equation for water flow in an unsaturated uniform soil. The main theory of soil …
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