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Showing 1 to 20 of 48 for “"soil survey"”.
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Development of Soil Survey Methods for Urban Areas
<p>Urban soils are the foundation of urban ecosystems and play a vital role in long-term urban sustainability and resiliency. Accurate soil surveys of urban areas should be done at higher resolution since extensive human activities often result in urban soil being highly disturbed and spatially …
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A suggested technique for the illustration and practical application of soil survey data to land development planning
Thesis (M.S.)--Michigan State University. Dept. of Resource Development, 1968
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Evaluation of pre-taxonomy soil surveys
A 1954 soil survey of Bland County, Virginia, was evaluated to determine if remapping was required to meet current soil survey standards. Considerable savings of time and money may be realized if a complete remap was not required. Ten random transects were chosen to study soil landscape units which …
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SOIL SALINITY AND SODICITY OF GALVESTON AND PELICAN ISLANDS, TEXAS
… of the island with seawater, causing elevated soil salinity levels that killed much of the vegetation on the island, including tens of thousands of trees. Residual salinity in soils and groundwater has hampered vegetation re-establishment in some areas.</p> <p>This project aims to create a map …
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Instructinoal Leadership Role and Responsibilities of Middle School Assistant Principals in Virginia
… tasks. The Sources of Instructional Leadership(SOIL) survey instrument was revised and used in addition to a demographic survey to collect the data. A total of 396 surveys were mailed to middle school assistant principals across the state of Virginia. The SOIL survey includes 31 instructional …
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Integrating basic remote sensing, terrain analysis and geostatistical methods to generate spatially explicate continuous soil attribute maps for Fraser Experimental Forest
Hans Jenny's Factors of Soil Formation, a system of quantitative pedology (1941), concisely summarized and illustrated many of the basic principles of pedology utilized to date (Jenny, 1941). This state factor model became the backbone for soil survey research and production because it proposed …
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Engineering classification of pedologic soil groups in Knox County, Tennessee, for residential housing
… areas requires preliminary investigations of soil conditions. It is possible to process for engineering purposes the information contained in geologic and pedologic maps and reports. In this way, adverse site conditions, such as flooding, frost action, expansion and shrinkage of soils, which …
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Optimisation of pedotransfer function models for soil hydraulic properties using an artificial neural network ensemble method
Soil hydraulic properties are very time-consuming and expensive to measure directly. Conversely, routinely collected soil survey parameters (e.g. soil texture, dry bulk density and organic matter content) are relatively cheap and easy to collect. Fortunately, mathematical regression models called …
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Wastewater Regulation: a Groundwater Protection Strategy For Christian County, Missouri
… for human consumption. Seventy-one percent of soils in Christian County are not conducive to onsite wastewater treatment systems. The soil survey of Christian County is a reference which should be used by developers and homeowners when deciding where to place an onsite wastewater treatment …
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Optimization Techniques for Soil Organic Carbon Prediction Using Mid-Infrared Spectroscopy
<p>Resource-efficient techniques for accurate soil carbon estimation are necessary to satisfy the increasing demand for spatiotemporal data. In the last thirty years, mid-infrared (MIR) soil spectroscopy has developed as an accurate, rapid, cost-effective, and non-destructive technique for soil …
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Environmental and Digital Data Analysis of the National Wetlands Inventory (NWI) Landscape Position Classification System
… properties with public domain terrain, soils, hydrology, and vegetation data within the Coastal Plain of Virginia. Environmental properties were applied to a non-metric multidimensional scaling technique to identify similarities within individual landscape positions based on wetland …
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Physical and Chemical Controls on Suffosion Development in Gypsic Soil, Culberson County, Texas
… through dissolution and transport of gypsic soils; however, no prior research has been conducted within the Delaware Basin in regard to these processes. These phenomena were evaluated in both field and laboratory settings in order to assess the parameters of suffosion development associated …
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Soil degradation: Its aspects and modelling
… region, Sudan. In order to investigate the soil degradation aspects in the study area, its causal, rate per time and mapping; the remote sensing and GIS technologies were used beside the routine soil survey and laboratory analyses. Quantitative information on soils degradation and vegetation …
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Engineering characteristics of soils of Fayette and Union Counties, Indiana, pertinent to residential housing
… are flooding, foundation failures due to adverse soil conditions, and improper location of absorption field disposal systems. This study investigates the feasibility of obtaining such preliminary soils data from available reports and maps and rates the suitability of soils in Fayette and Union …
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Reevaluating the Geologic Formations of the Upper Coastal Plain in Chesterfield County, South Carolina
… analyses of outcrops with LiDAR data, soil survey maps, ground-penetrating radar transects, and hand auger borings. Micro- and macrofossil identification and optically-stimulated luminescence (OSL) dating provided age control.</p> <p>Four distinct mappable units occur throughout the …
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Creating A Stormwater Runoff Model For The City Of Oxford, Mississippi: When It Rains, Where Does That Water Go?
… model uses data collected from rain gauges, soil data from ssurgo and published soil infiltration rates from a Lafayette County soil survey, impervious cover created from Lidar and Aerial Photography, published evapotranspiration rates, and storm drain locations provided by the city of oxford …
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Harvesting impacts on steep slopes in Virginia
… emphasis was placed on erosion, compaction and soil movement. Ten randomly selected study areas were clear-cut between September 1988 and August 1989; measurements followed between March 1989 and August 1989. Potential erosion was estimated using the Universal Soil Loss Equation and soil …
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Some properties of Washington County soils and their relation to soil type and plant growth
1. Seventy-five samples of soils were taken in Washington County, Virginia. These samples were taken while the soil survey was in progress. In this group thirty-one different soil types were included. The samples were taken from all parts of the county. Notes were made of the soil type, slope of …
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Pollution of soils by lead and its uptake and pathways in the ecosystem.
… to the distribution and pathways of lead in the soil and plant ecosystem. Methods of conducting large area soil surveys and assessing the distribution of lead and other heavy metals including cadmium, copper and zinc are also examined. A survey was conducted over a 370 km2 area of North East …
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Soil carbon dynamics in the upper Mersey estuarine floodplain, northwest England : implications for soil carbon sequestration
There have been several studies on soil carbon dynamics in estuarine floodplains. However, little attempt has been made to examine the effects of heavy metal contamination on these processes. This represents a knowledge gap that needs to be filled to understand better soil carbon decomposition in …
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