E-Dissertationen: Search
Now showing items 1-10 of 14
Funktionelle Morphologie und Abnutzungsmuster prätribosphenischer Molaren am Beispiel der Dryolestida (Mammalia, Cladotheria)
(2012-03-09)
Für die Dryolestida, primitive mesozoische Säugetiere, sind die mesiodistal verkürzten und buccolingual verbreiterten Molaren in Ober- und Unterkiefer kennzeichnend. Die Molaren sind in Form von alternierenden Dreiecken ...
Der Einfluss von Vulkanausbrüchen auf die Vegetationsentwicklung und die agrarische Nutzung seit dem Weichselspätglazial in Ostanatolien anhand von palynologischen Untersuchungen an lakustrinen Sedimenten des Vansees (Türkei)
(2012-08-07)
Die Auswirkungen heutiger Vulkaneruptionen auf die Vegetation sind seit langem im Fokus ökologischer Untersuchungen. Um Aussagen über Ablauf und Dauer der postvulkanischen Vegetationsentwicklungen zu treffen, bedarf es ...
Dynamical and Mechanistic Effects of High Pressure Fluids in the Earth's Crust
(2012-03-16)
Overpressurized fluids in the lithosphere play a significant role in a diverse range of globally observed natural hazards. Their occurrence during volcanic eruptions or earth degassing processes is apparent, but their ...
Rainforest change analysis in Eastern Africa: A new multisourced, semi-quantitative approach to investigating more than 100 years of forest cover disturbance
(2012-01-11)
Forest change and disturbance of the past strongly influence the state of today’s forests and their biodiversity. However, knowledge of former forest landscape states can be subject to misunderstanding and the practical ...
Pastoralism under Pressure: Vulnerability of Pastoral Nomads to Multiple Socio-political and Climate Stresses – The Shahsevan of Northwest Iran
(2012-07-18)
Pastoral nomadism is a livelihood source for over 200,000 families in Iran. They rear over 24 million head of animals such as sheep and goats throughout cycles of seasonal migration and thereby utilize over 40% of the ...
Experimental and numerical studies on solute transport in unsaturated heterogeneous porous media under evaporation conditions
(2012-08-31)
Groundwater level rise, root water uptake, or evaporation induces local upward water and solute fluxes in soils, causing soil salinization and rise of contaminants to the soil surface, and influencing the migration of ...
Effect of iron and sulfur on the solubility of highly siderophile elements in silicate melts
(2012-07-13)
An important aspect in highly siderophile element (HSE - Os, Ir, Ru, Rh, Pt, Pd, Re, Au) geochemistry is their solubility in silicate melts. Knowing the solubility of HSE in silicate melts can potentially give insights on ...
Geoinformationssysteme zur Lageanalyse und Risikobewertung
(2012-05-11)
Geoinformationssysteme zur Lageanalyse und Risikobewertung sind ein wichtiges Werkzeug zur Unterstützung des Krisenmanagements. Sie liefern allen Beteiligten wichtige Hinweise und ermöglichen angemessene Reaktionen. Diese ...
Spatial and temporal variability of soil CO2 efflux in a spruce-dominated forest in the Eifel National Park, Germany
(2012-05-18)
The objective of this study was the analysis of temporal and spatial patterns of soil respiration on a catchment scale. This study is part of the DFG-financed project Transregio 32, which deals with the analysis of spatial ...
Multi-scale modeling of sediment and nutrient flow dynamics in the Ouémé catchment (Benin) - towards an assessment of global change effects on soil degradation and water quality
(2012-09-24)
Beyond aspects such as the quantification of soil and water degradation, this work investigated impacts of differences in the input boundary conditions (e.g. soil map, land use) on the performance of the Soil and Water ...