- 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 491 to 500 of 4507 (0.022 seconds)| 491 |
The consolidation of soft clays : an experimental and analytical investigationEl-Bahey, Mohamed Essam January 1987 (has links)
No description available.
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| 492 |
Physiological responses of acacia seeds to salt stressShafiq-ur-Rehman January 1997 (has links)
No description available.
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| 493 |
Movement of urea and its products in soilRachhpal-Singh January 1984 (has links)
No description available.
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| 494 |
Brittle fracture in soil cuttingAluko, O. B. January 1988 (has links)
No description available.
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| 495 |
Biodegradation of synthetic 2-stroke lubricants in soilHaigh, Susan D. January 1989 (has links)
No description available.
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| 496 |
Some aspects and applications of electrically conductive geosynthetic materialsHamir, Rosli Bin January 1997 (has links)
No description available.
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| 497 |
Nitrogen fixation (acetylene reduction) in plant rhizospheres with special reference to the effects of oxygenHollinshead, Paul January 1989 (has links)
No description available.
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| 498 |
DEM creation for application in precision agricultureRussell, David C. January 2001 (has links)
No description available.
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| 499 |
Comparative studies of selected semi-arid soils near Mosul, IraqAl-Juburi, Kadhim Daud January 1973 (has links)
No description available.
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| 500 |
Biogeochemistry of Icelandic AndosolsGuicharnaud, Rannveig A. January 2009 (has links)
Studying biological parameters of northern latitude soils is of importance because of their high capacity to sequester organic matter. A consequence of climate change and the resulting increasing temperatures in the Arctic may be the shift from such soils being carbon sinks to becoming unmanageable carbon sources. Despite the relative harshness of the climate and the limited growing season, Icelandic soils are productive when cultivated and there is evidence of the emergence of a warmer and wetter climate. A key issue will be a consideration of the impact of intensive cultivation on the soils, landscape and general environmental parameters. This thesis studied the effect of climate, land use, fertilisation and soil pedological properties on Icelandic Andosols biology. Icelandic agricultural soils biological parameters were affected by land use were fertilisation seamed to suppress nitrogen mineralisation in cultivated fields. Furthermore, there were indications that an increase in soil moisture content promoted either nitrogen immobilisation or denitrification limiting inorganic N availability to the standing vegetation. They were adapted to perform around the freezing point. Soil respiration and enzymatic activities were measured down to a soil temperature of -10°C. Around the freezing point enzymatic activities and soil respiration was governed by availability of labile carbon. The soil microbial biomass carbon pool was not affected by different climatic variables (rainfall, air and soil temperatures) or fertilisation treatments. In comparison to other soils sampled in Scotland, Icelandic soils had a considerably larger microbial biomass carbon pools but their biological activity was significantly lower. This was mainly related to their pedological properties promoting high carbon sequestration and low C availability to microorganisms.
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