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Showing 1 to 10 of 10 for “"soil classes"”.
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Estimating scale dependence of saturated hydraulic conductivity in soils
… of scale on hydraulic and physical properties of soils has broad applications to scaling problems in hydrogeology, soil physics, and environmental engineering. The scale dependence of flow and transport is attributed to spatial heterogeneities, such as pore-size distribution and pore connectivity …
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Hydrogeology of the Kalahari in north-eastern Namibia
… shrinkage cracks and rootlets. Five substratum classes have been soil physically studied: Pans and vleis, brown to red soils, dune sand, soil with an aeolian influence, and calcrete. Aeolian sands are most promising for the development of direct diffuse recharge. Recharge by preferred flow might …
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Septic regulations and suburban development patterns : an analysis based on soil data in Norfolk County, Massachusetts
… suburban and exurban development. I grouped soil types into seven interpretive classes based on their limitations for wastewater disposal; and created a Soil Development Index, which represents the relative proportion of soil classes in available and developed land over time. I found that …
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The Maya Footprint: Soil Resources of Chunchucmil, Yucatan, Mexico
… Yucatán are constrained by climate, thin soils, and low fertility. Despite this, the ancient Maya city of Chunchucmil Yucatán, Mexico, boasted an immense, dense, and wealthy population during the Middle Classic period (ca A.D. 400-700). Soil physical and chemical properties were explored …
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Mapping and Assessment of Land Use/Land Cover Using Remote Sensing and GIS in North Kordofan State, Sudan
… the dynamics of change of land use/land cover classes. The study attempts also to improve classification accuracy by using different data transformation methods like PCA, TCA and CA. In addition it tries to investigate the most reliable methods of pre-classification and/or post-classification …
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Determining seismic response of mid-rise building frames considering dynamic soil-structure interaction
Structures are often mounted on layers of soil unless bedrock is very close to the ground surface. Based on the fact that seismic waves pass through kilometres of bedrock and usually less than 100 meters of soil, soil layers play a significant role in assigning the characteristics of the ground …
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Soil and permafrost distribution, soil characterisation and soil vulnerability to human foot trampling, Wright Valley, Antarctica
Soils and shallow permafrost in Wright Valley, Antarctica were mapped at a scale of 1:50 000 to depict their spatial distribution, and sampled to determine the main drivers for the soil classification. In the cold desert of Wright Valley the Gelisol order of Soil Taxonomy was used to classify the …
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Impacts of forest harvesting on the performance of soil-landscape modelling in a radiata pine forest, northern New Zealand
… on the spatial distribution of certain target soil properties and locally significant soil classes in order to implement sustainable and site-specific forest management practices. Soil-landscape modelling has been identified as a potentially useful tool for collecting this information. However, …
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Terrestrial Si dynamics in the Arctic: a study on biotic and abiotic controls
… (as amorphous Si) and subsequent storage in soil, has been realized. Due to the high prevalence of high Si-accumulating plants, cold temperatures and perenially frozen soil conditions, Arctic terrestrial ecosystems is hypothesized to store a significant fraction of the global soil ASi stock. …
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The Influence of the Recommended LRFD Guidelines for the Seismic Design of Highway Bridges on Virginia Bridges
… of the bridge was also calculated. After the soil class of the bridge was determined, the design response spectrum curve of the bridge was drawn. The spectral acceleration obtained from the design spectrum curve was used to calculate the equivalent earthquake loads, which were applied to the …