Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (2)
- Geology (2)
- Paleontology (2)
- Stratigraphy (2)
- Analytical Chemistry (1)
-
- Biochemistry (1)
- Biochemistry, Biophysics, and Structural Biology (1)
- Chemistry (1)
- Environmental Education (1)
- Environmental Health and Protection (1)
- Environmental Indicators and Impact Assessment (1)
- Environmental Monitoring (1)
- Geochemistry (1)
- Geomorphology (1)
- Geophysics and Seismology (1)
- Life Sciences (1)
- Marine Biology (1)
- Natural Resource Economics (1)
- Natural Resources Management and Policy (1)
- Natural Resources and Conservation (1)
- Oil, Gas, and Energy (1)
- Other Environmental Sciences (1)
- Paleobiology (1)
- Sedimentology (1)
- Soil Science (1)
- Sustainability (1)
- Water Resource Management (1)
- Keyword
-
- Agricultural (1)
- Analytical pyrolysis (1)
- Base‐level rise (1)
- Bioenergy; network location analysis; switchgrass; GIS-based fuzzy logic; network optimization; Missouri (1)
- Carbon (1)
-
- Carboniferous (1)
- Clathromorphum (1)
- Decomposition (1)
- Delta dynamics (1)
- Differential subsidence (1)
- Fossil and modern Rhodophyta (1)
- Lithothamnion (1)
- Meta-analysis (1)
- Natural (1)
- Nitrogen (1)
- Organic geochemistry (1)
- Parachaetetes (1)
- Phymatolithon (1)
- Plant matter accumulation (1)
- Shoreline retreat (1)
- Soil (1)
- Urban (1)
- Publication
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Biogeochemistry
A Global Analysis Of Carbon And Nitrogen Stocks In Natural And Anthropogenic Soils, Shih-Chieh Chien
A Global Analysis Of Carbon And Nitrogen Stocks In Natural And Anthropogenic Soils, Shih-Chieh Chien
Theses, Dissertations and Culminating Projects
In terrestrial biomes, soils possess the highest amount of carbon and nitrogen stocks that regulate biogeochemical processes and provide ecosystem services. The amount of carbon and nitrogen stored in soils, as a balance of nutrient influxes and outfluxes, is controlled by various environmental and soil factors, while at the same time soil carbon and nitrogen stocks can be subject to anthropogenic impacts, like nutrient storage in urban soils. To inform a better, general understanding of carbon and nitrogen distribution in urban soils, the present dissertation gathers four articles (from Chapters 2 to 5, respectively) addressing different aspects of the issue, …
Assessment Of Switchgrass-Based Bioenergy Supply Using Gis-Based Fuzzy Logic And Network Optimization In Missouri (U.S.A.), Gia Nguyen, Erik Lyttek, Pankaj Lal, Taylor Wieczerak, Pralhad Burli
Assessment Of Switchgrass-Based Bioenergy Supply Using Gis-Based Fuzzy Logic And Network Optimization In Missouri (U.S.A.), Gia Nguyen, Erik Lyttek, Pankaj Lal, Taylor Wieczerak, Pralhad Burli
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Bioenergy has been globally recognized as one of the sustainable alternatives to fossil fuels. An assured supply of biomass feedstocks is a crucial bottleneck for the bioenergy industry emanating from uncertainties in land-use changes and future prices. Analytical approaches deriving from geographical information systems (GIS)-based analysis, mathematical modeling, optimization analyses, and empirical techniques have been widely used to evaluate the potential for bioenergy feedstock. In this study, we propose a three-phase methodology integrating fuzzy logic, network optimization, and ecosystem services assessment to estimate potential bioenergy supply. The fuzzy logic analysis uses multiple spatial criteria to identify suitable biomass cultivating regions. …
Exploring The Role Of Organic Matter Accumulation On Delta Evolution, Jorge Lorenzo Trueba, Vaughan Voller, Chris Paola, Robert Twilley, Azure Bevington
Exploring The Role Of Organic Matter Accumulation On Delta Evolution, Jorge Lorenzo Trueba, Vaughan Voller, Chris Paola, Robert Twilley, Azure Bevington
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
We explore the role of plant matter accumulation in the sediment column in determining the response of fluvial-deltas to base-level rise and simple subsidence profiles. Making the assumption that delta building processes operate to preserve the geometry of the delta plain, we model organic sedimentation in terms of the plant matter accumulation and accommodation (space made for sediment deposition) rates. A spatial integration of the organic sedimentation, added to the known river sediment input, leads to a model of delta evolution that estimates the fraction of organic sediments preserved in the delta. The model predicts that the maximum organic fraction …
A Biogeochemical Comparison Of Fossil (Carboniferous) And Modern Crustose Red Algae, Michael A. Kruge, John E. Utgaard, William Ferry
A Biogeochemical Comparison Of Fossil (Carboniferous) And Modern Crustose Red Algae, Michael A. Kruge, John E. Utgaard, William Ferry
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
The nature of the contribution of the various types of algae to sedimentary organic matter continues to be a topic of research interest. Crustose red algae have however received less attention than other types. The fossil calcareous red algae (Rhodophyta) analyzed in this study are two relatively unrecrystallized specimens of Parachaetetes (Family Solenoporacea) from the lower part of the Ste. Genevieve Formation (Carboniferous, Visean) in Union County, Illinois, USA. They occurred in the patch reef phase of a small carbonate mudmound-patchreef. The three modern specimens (collected and identified by F. Collier) are the crustose algae Lithothamnion, Clathromorphum and Phymatolithon …