Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"water retention capacity"”.
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Development and Use of Moisture-Suction Relationships for Geosynthetic Clay Liners
… tests, and relative humidity tests, then fitting water retention curves (WRCs) to the data. WRCs were determined for wetting processes and drying processes in terms of gravimetric moisture content and volumetric moisture content.</p> <p>The effects of GCL type, hydration solution, wet-dry cycles, …
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A Study of the Ecological Factors Influencing the Efficiency of the Activated Sludge System for Treating Organic Wastes
A study of the activated sludge process of wastewater treatment was carried out to determine the effect of specific ecological factors on the efficiency of the system. Laboratory and pilot plant tests were employed to determine the effect of changes in plant layout, biomass loading, characteristics …
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Factors influencing phosphorus losses in agroecosystems dominated by tile drainage
… of phosphorus losses at the sub-field and watershed scales are not fully understood. The overall goal of this study is to determine the effect on phosphorus losses of topography, soil phosphorus, management practices, meteorological conditions, and hydrologic characteristics in agricultural …
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The long-term effect of elevated CO₂ on grassland biomass production
… contents (which could have an effect on plant wateruse efficiency) and carbon isotope discrimination values were determined at the three sites. The results show that elevated CO₂ had a significant effect on the monocotyledenous dry matter production, but had no significant effect on any of the …
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Hydrologic Regime and Soil Property Interactions in a Forested Peatland
… these distinct layers, we integrated continuous water level data, peat profile characterization, and analyzed soil physical and hydraulic properties. The transition from upper to lower peat soil layers typically occurred at depths below contemporary water level observations, suggesting that the …
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Atributos físicos e biológicos do solo sob diferentes condições de uso nas várzeas de Sousa (PB)
… and micro porosity, and total porosity, and water retention in the soil, specifically, field capacity, wilting point, and available water. According to the results obtained, it can be seen that the biological part of the overall microbial diversity was larger in the area under native …
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Flood Processes, Forest Dynamics, and Disturbance In the Congaree River Floodplain, South Carolina
… flood extent, depth, frequency and flood water retention capacity. These data were incorporated with structural and compositional forest surveys, additional environmental data, and historic logging information to compare forest patterns and other factors controlling succession in abandoned …
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Effect of 1B/1R Chromosomal Translocation on Dough Rheology of Soft Red Winter Wheat Flour
… for protein, ash, and moisture content, alkaline water retention capacity (AWRC), cookie diameter, tensile stress and strain, and by ¹³C nuclear magnetic resonance (¹³C-NMR) spectroscopy techniques. Significant (p = 0.0001) negative correlations were found between AWRC and cookie diameter of SRWWs …
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Feeding the soil to feed the planet: soil health outcomes from novel amendments to residue management
… soils are the foundation for the continued capacity of agricultural lands to supply essential ecosystem services while also meeting demands for food, fuel and fiber. From academia to policymakers and other key stakeholders, attention towards soil health continues to rise due to global …
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Development of co-disposal methods for coal discards and fine waste for the prevention of acid mine drainage
… drainage (ARD). Far reaching consequences on water systems, vegetation, people and wildlife ensue as a result. To minimise the environmental burden, the acidic water resulting from the oxidation of sulphide minerals present in wastes from both active and abandoned mines is often treated with …