- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 241 to 250 of 14563 (0.03 seconds)| 241 |
Influence of sample pretreatment on soil moisture retentionElrick, David E. January 1955 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1955. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 58-60).
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| 242 |
The variability and estimation of hydraulic conductivity in C horizons of sandy loam, glacial till soils ; Comparison of one-step outflow laboratory method to an i̲n̲ s̲i̲t̲u̲ method for measuring hydraulic conductivityJaynes, Dan B. January 1978 (has links)
Thesis (M.S.)--Wisconsin. / Includes bibliographical references.
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| 243 |
New laboratory test procedure for the enhanced calibration of constitutive modeBayoumi, Ahmed M. January 2006 (has links)
Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2006. / Paul Mayne, Committee Member ; James Tsai, Committee Member ; Glenn Rix, Committee Member ; David Frost, Committee Member ; Carlos Santamarina, Committee Chair.
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Development of on-the-go soil sensing technology for mapping soil, pH, potassium and nitrate contentsSethuramasamyraja, Balaji. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (site viewed on Sept. 12, 2006). PDF text of dissertation: viii, 128 p. : ill. ; 1.84Mb. UMI publication number: AAT 3208086. Includes bibliographical references. Also available in microfilm, microfiche and paper format.
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Development of a direct test method for dynamically assessing the liquefaction resistance of soils in situCox, Brady Ray, January 1900 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
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The return period of soil liquefaction /Mayfield, Roy T. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 214-226).
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| 247 |
Off-site costs of soil erosion in the Willamette Valley of Oregon /Moore, Walter B. January 1985 (has links)
Thesis (M.S.)--Oregon State University, 1985. / Typescript (photocopy). Includes bibliographical references (leaves 81-83). Also available on the World Wide Web.
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The dynamics of soil degradation and incentives for optimal management in the Central Highlands of EthiopiaTizale, Chilot Yirga. January 2007 (has links)
Thesis (Ph.D.)(Agricultural Economics)--University of Pretoria, 2007. / Includes summary. Includes bibliographical references. Available on the Internet via the World Wide Web.
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Soil respiration following alternative site preparation treatments in a boreal mixedwood forestHu, Duan, January 1900 (has links) (PDF)
Thesis (M. Sc.)--Lakehead University, 1996. / Includes bibliographical references.
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Predicting Soil Health and Function of the Barnes Catena Using Evapotranspiration, Vegetative, Geologic, and Terrain Attributes in the Eastern Glaciated Plains of North DakotaBohn, Meyer Patrick 06 June 2018 (has links)
<p> The benchmark Barnes soil series is an extensive northern Great Plains upland Hapludoll that is vital to the region. Accelerated erosion has degraded Barnes agricultural soil quality, but with unknown extent or severity. Samples from three extensive Barnes soil map units, stratified by evapotranspiration values, were collected to 50 cm and analyzed for chemical, morphologic, and physical properties germane to edaphic function. Multi-scale terrain attributes and remote-sensed soil proxies, and geologic covariates were implemented with Cubist to model soil properties. Best models included SOC, EC, pH, SOC-IC, and sand content. Pedons were classified with a clustering algorithm into six classes. Linear discriminant analysis of covariates and subsequent prediction of landscape grouped classes had moderate to nearly substantial agreement with field observations; only fair agreement was attained for all classes. Detailed morphologic observations confirmed extensive topsoil erosion for some landscape positions that merit investigation of soil function and potential state change.</p><p>
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