Search for dissertations about: "dissolved Si DSi"
Showing result 1 - 5 of 7 swedish dissertations containing the words dissolved Si DSi.
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1. Isotope-based reconstruction of the biogeochemical Si cycle : Implications for climate change and human perturbation
Abstract : The global silicon (Si) cycle is of fundamental importance for the global carbon cycle. Diatom growth in the oceans is a major sequestration pathway for carbon on a global scale (often referred to as the biological pump). READ MORE
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2. Silicon cycling in the Baltic Sea : Trends and budget of dissolved silica
Abstract : The dissolved silicon (DSi) has a crucial role for growth of a large group of primary producers – diatoms and, hence, impact on functioning of the aquatic food web. This thesis contributes to an increased understanding of the modifications of the DSi cycling in the Baltic Sea. READ MORE
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3. Diatom-rich sediment formation in lakes
Abstract : Unicellular photosynthetic golden algae called diatoms are one of the most abundant silicifying organisms. Diatoms take up silicon and build their frustules, in the form of biogenic silica (BSi), which have high preservation potential, and thus are found in sediments. READ MORE
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4. Integrating fluvial processes into the global Si cycle
Abstract : Silicon (Si) is ubiqutious in natural waters as dissolved silica (DSi) and is used as a nutrient by many plant and animal species. DSi ultimately derives from the weathering of silicate minerals, a process which also consumes atmospheric CO2 and couples the silicon and carbon cycles. READ MORE
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5. Marine silicon cycle through the Cenozoic
Abstract : Silicon (Si) cycle is one of Earth's major biogeochemical cycles. Furthermore, the dissolved form of Si (DSi) is an essential nutrient for both terrestrial and marine ecosystems. READ MORE