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Showing 1 to 20 of 138 for “"topsoil"”.
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Topsoil thickness impact on corn, soybean, and switchgrass productivity and soil nutrient management
Topsoil thickness, or depth to claypan (DTC), is a major contributing factor to variability in corn (Zea mays L.) and soybean (Glycine max [L.]) yield, profit, and nutrient dynamics on claypan soils. Understanding how and when DTC affects these factors across the landscape is crucial for improving …
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Evaluation of Topsoil Substitutes for Restoration of Appalachian Hardwoods on Strip Mined Land
… (GUH) were compared with undisturbed forest topsoil (UFT) to determine their suitability for tree growth. Half of each of the four media was inoculated with a 2.5-cm layer of topsoil. BWS was the optimal spoil material for the growth of F. americana, Q. rubra and microbial populations. Foliar …
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An Experiment Assessing the Potential for Compost-Amended Lawn Topsoil to Inhibit Storm Quickflow
… (TRCA) to examine the usefulness of increased topsoil depth and organic matter content (using compost) in improving soil characteristics and limiting quickflow discharge from lawns. Results indicated each lawn met TRCA-recommended soil guidelines, but the addition of compost did not produce …
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Transposição de topsoil e serapilheira para restauração ecológica no Parque Nacional da Serra do Itajaí, SC
… no campo em cinco tratamentos de serapilheira e topsoil. Os tratamentos estabelecidos foram: Controle, sem material (CTR); serapilheira (SER); topsoil (TOP); topsoil coberto com serapilheira (ORG); e a serapilheira misturada com topsoil (MIS). As amostras do banco de sementes (topsoil + …
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Dynamics and Characterization of Soil Organic Matter on Mine Soils 16 Years after Amendment with Topsoil, Sawdust, and Sewage Sludge
… were (i) to determine the comparative ability of topsoil, sawdust, and sewage sludge amendments, after 16 years, to positively affect mine soil quality using the following key soil quality variables: organic matter content, aggregate stability, and mineralizable nitrogen, (ii) to determine the …
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Investigating the Relationships Between Age and Depth of Stockpiled Topsoil with Its Nutrient Content: An Analysis of Responsible Factors and Potential Consequences
Storing topsoil in stockpiles is intended to preserve the quality of soils for reclamation purposes. Literature review revealed inconsistent and sometimes conflicting data that points to potential degradation concerns. The research completed included analyzing soil samples from three different ages …
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Human and environmental health risks associated with eleven metal(loid)s evaluated in topsoil and wild mushrooms sampled from across Leicestershire, UK.
… and Pb, that are of toxicological importance in topsoil and their bioaccumulation in wild mushrooms, used as biomonitors from parks across Leicestershire, UK. Moreover, the study assessed human, and ecological health risks to metal(loid) exposure from these sources. Topsoil and wild mushroom …
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Organic amendment effects on carbon and nitrogen mineralization in an Appalachian minesoil
The use of blasted rock overburden as a topsoil substitute during surface-mined land reclamation is practiced in areas with thin, unrecoverable topsoil. The long-term productivity of topsoil substitutes has often been difficult to maintain under forage and row crops. The objective of this project …
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Influence of fly ash and other treatments on acid mine drainage from coal refuse
… AMD mitigation treatments including fly ash, topsoil, lime, and rock-P. Two types of fly ash were tested, one at four blending rates, the other at two rates. Conventional lime plus topsoil, lime without topsoil, topsoil only, topsoil with fly ash, rock-P plus topsoil, and rock-P plus fly ash …
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Mine soil genesis and tall fescue nutrient status as a function of overburden type and cultural amendment
… infertile. This often makes use of natural topsoil for surface coal mine reclamation impractical. Sandstone (SS) and siltstone (SiS) topsoil substitute materials in mixed and pure treatments were compared to ascertain their effects on soil genesis and tall fescue (Festuca arundinaceae …
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Environmental and agronomic aspects of municipal solid waste heavy fraction used for turfgrass production
… after seeding were greater for sod grown in topsoil amended with heavy fraction than for turf grown in topsoil only. These results imply that the use of this by-product for turfgrass production may reduce the time required to produce a harvestable sod. In a container study, physical …
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Rehabilitation of Severely Compacted Urban Soil to Improve Tree Establishment and Growth
… soil (UN); minimum effort (ME) (10 cm topsoil); enhanced topsoil (ET) (ME + rototilling); and profile rebuilding (PR) (compost, subsoiling, topsoil and rototilling). Pretreatment included removing topsoil and compacting subsoil to 1.95 g/cm3 bulk density. Acer rubrum L. (red maple), …
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Restoration of Prime Farmland Disturbed by Mineral Sand Mining in the Upper Coastal Plain of Virginia
… with processed material (Pit 3). To evaluate topsoil replacement vs. organic amendment, each pit was split into two experiments, and an adjacent undisturbed control was established. One half of each pit was covered with approximately 30 cm of topsoil, and the other half of each pit received …
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Heathland Restoration after Mineral Extraction
… survival of plants was observed in the stored topsoil, followed by stored topsoil with commercial ErM. DNA analysis confirmed the presence of ErM fungi in the order Heliotales on root hairs of plants grown in the ErM treated soil. Chemical analyses of topsoil stored in soil berms for up to five …
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Groundwater effects of land applied alum residuals
… lime and plant nutrients incorporated into the topsoil. A weekly dose of rainwater was applied to each column over a six month period. Leachate and soil constituents were analyzed to evaluate migration of specific constituents from the alum residuals through the soil profile and into the …
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Restoration of nitrogen and carbon cycling in an Appalachian mine spoil
… to which inorganic N fertilization, native topsoil replacement, or whole-tree wood-chip amendment affected the restoration and reforestation of an Appalachian mine-soil system through changes in C and ~ dynamics. Eighteen concrete tank lysimeters filled with mine spoils served as …
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Pedogenesis on the Sefton Coastal Dunes, NW England
… seasonal monitoring by fixed point photography. Topsoil (0-5 cm) physico-chemical characteristics are presented in a series of baseline GIS maps, displaying spatial pedo-property variation across the dune landscape. Combined with vegetation data, topsoil analysis identifies 10 distinct …
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Remediation and restoration of ocean exposed cliff-top, in the context of Dounreay (Scotland) nuclear power plant decommissioning
… of bioreceptors at the surface, however, topsoil availability is limited.<br/>The cliff top site, and exposure to salt spray driven by strong winds, meant the identification of suitable vegetation communities for different areas could be crucial to its success. Vegetation and soil surveys …
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Properties and Potentials of Coal Mine Soils in Southwest Virginia 29 Years After Establishment
… two studies, a rock mix study (RM) comparing topsoil substitutes created from different ratios of local overburden [pure sandstone (SS), pure siltstone (SiS), 2:1 SS to SiS, 1:1 SS to SiS, and 1:2 SS to SiS], and a surface amendment study (SA) comparing organic amendments [control (CON), …
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