Search for dissertations about: "soils"

Showing result 1 - 5 of 161 swedish dissertations containing the word soils.

  2. 1. Radium distribution in soils, analysed with chemical sequential extraction, and its effect on radon emanation

    University dissertation from Institutionen för anläggning och miljö

    Author : Cecilia Edsfeldt; KTH.; [1998]
    Keywords : Soils; Radons;

    Abstract : .... READ MORE

  4. 2. Thermodynamics of freezing soils theory and application

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Daichao Sheng; Luleå tekniska universitet.; Luleå University of Technology.; [1994]
    Keywords : ;

    Abstract : .... READ MORE

  5. 3. Geotechnical aspects of buildings on expansive soils in Kibaha, Tanzania : preliminary study

    University dissertation from Stockholm : Byggvetenskap

    Author : Charles Lucian; KTH.; [2006]
    Keywords : TEKNIKVETENSKAP; TECHNOLOGY; expansive soils; soil properties; potential swell; Soil-Structure Interaction SSI ; and superstructure and substructure.;

    Abstract : The focus of this study is on potential problems resulting from construction on expansive soils in Kibaha region, Tanzania. For the fact that most of the affected structures are founded on expansive soils, a clear understanding of the soil behaviour and their interaction with structures, specifically as they relate to shallow foundations, has been of more interest to the study in order to evaluate properly the source of the problem. READ MORE

  6. 4. Unsaturated Solute Transport in a Semiarid Catchment - Nonlinear Analyses and Modelling

    University dissertation from Department of Water Reources Engineering, Lund University

    Author : Pernilla Öhrström; Lunds universitet.; Lund University.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hydrogeologi; teknisk geografi; teknisk geologi; unsaturated zone; Hydrogeology; geographical and geological engineering; solute transport; scaling; soils; semiarid regions; heterogeneity; preferential flow; fractals;

    Abstract : Unsaturated solute transport is highly variable and therefore difficult to predict. In semi-arid areas, where water resources are limited, the presence of macropores is of great importance for crop production. The bromide ion (Br-) and dye tracers are useful for studies of water movement. READ MORE

  7. 5. Wild plants can improve their rhizosphere chemistry in acid soils

    University dissertation from Plant Ecology, Ecology Building, SE-223 62 Lund

    Author : Marion Schöttelndreier; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING; NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Växtekologi; wild plants.; time pattern; soil heterogeneity; rhizotrons; rhizosphere; pH; oxalic acid; nutrient availability; malic acid; hydroponics; citric acid; 14C; biodegradation; acid soils; aluminium toxicity; Soil Science; agricultural hydrology; Lantbrukshydrologi; marklära; Plant biochemistry; Växtbiokemi;

    Abstract : Growth conditions on acid soils may be hampered by low nutrient availability and phytotoxic Al (aluminium) concentrations. In this thesis I present my studies on adaptation mechanisms of wild plants to acid soils in the close root environment, the rhizosphere. READ MORE