Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"Carbon pools"”.
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Carbon Pools, Dynamics and Budget of the Bruce Peninsula
… However, there is little research done on the carbon pools, their dynamics and the soil carbon budget. A more comprehensive understanding of the processes regulating the uptake and release of carbon dioxide with the atmosphere is needed. This thesis aims to 1) quantify how much carbon is stored …
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Carbon Pools and Fluxes as an Indicator of Riparian Restoration
… riparian forest restoration based on the various carbon pools/fluxes that may represent restoration success. This study was implemented on the Savannah River Site, an Environmental Research Park, where several riparian forests are recovering from thermal disturbances. The streams in these forests …
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The quantification and characterization of soil carbon pools in biofuel agriculture.
… of mechanisms involved in terrestrial carbon cycling. Agricultural land management strategies such as fertilization, tillage, and crop selection affect soil organic carbon (SOC) storage through the quantity and quality of soil organic matter (SOM) fractions. A small perturbation in the …
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Measuring the temperature response of soil respiration from two distinct carbon pools in soil.
As soils contain a large store of terrestrial carbon, understanding the dynamics and stability of this important carbon reserve and how it may change with regards to future changes in temperature is of global interest. It is primarily understood that carbon exists in different pools within soil, …
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Effects of Elevated Atmospheric CO₂ on Scrub-Oak Root Carbon Pools and Soil Microbial Processes
… of elevated CO<sub>2</sub> on soil biomass pools, microbial response and nutrient limitations. Elevated CO<sub>2</sub> did not affect total biomass of roots as of May 2002. There was less biomass of the smallest roots (2 in the top 10 cm. The C and N contents of root and organic matter pools …
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Genetics by Nutrient Availability Interactions on Short-term Carbon Pools and Fluxes in Young Pinus taeda Plantations
… study each split into above- and below-ground pools and fluxes. Both the greenhouse and field experiment showed differences between contrasting genotypes in gas exchange parameters and C partitioning patterns, but genetic by nutrient availability interactions were only observed in the field. In …
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Biogeochemical effects of an invasive grass across a land-use gradient: linking alterations of nitrogen cycling to depleted soil carbon pools
… (N) cycling is linked to declines in soil carbon (C) stocks and 2) whether this mechanism explains variability in the invader’s impacts on soil C across a land-use gradient. To do this, I quantified the effects of M. vimineum on belowground C and N dynamics and enzyme activities in forests …
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Projecting Carbon Pools in Aboveground Woody Accumulations and Harvested Wood in Loblolly Pine Plantations of the Southern United States: From Stand-level to Regional Scales
Accounting for in-woods carbon storage in carbon accounting systems may be insufficient when substantial amounts of sequestered carbon are harvested and converted to long-lived wood products and landfills. The potential for offsetting greenhouse gas (GHG) emissions by storing carbon in managed …
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The Effects of Mechanical Site Preparation Treatment and Species Selection on Survival and Carbon Pools in 12-Year-Old American Sycamore (<i>Platanus occidentalis</i>) and Willow Oak (<i>Quercus phellos</i>) Riparian Plantations in the Southeastern U.S. Piedmont
… food and fiber supply, wildlife habitat, and carbon sequestration. In recent years, riparian forests have received increased attention and funding for riparian forest restoration projects. Unfortunately, failures of riparian restoration efforts are likely due to mortality of planted trees. …
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Exploring the Impact of Climate and Productivity on Soil Carbon Across the Native Range of Loblolly Pine
… to pursue climate mitigation through soil carbon sequestration require accurate estimates of soil carbon stocks and projections of how carbon pools will change with future climate. In this study, the process model MIMICS-CN was utilized to explore the potential changes in bulk soil organic …
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Vegetation Dynamics of an Old-growth Mixed Mesophytic Forest in Southeastern Ohio, USA
… and abundances of natural resources, carbon pools, and species. Here, results are presented from the second sampling effort at Dysart Woods, an old-growth, mixed-mesophytic remnant tract in southeastern Ohio. In 2011, trees, saplings, shrubs, herbs, and soils were sampled in permanent …
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Towards a paradigm shift in the modeling of soil organic carbon decomposition for earth system models
<p>Soils are the largest terrestrial carbon pools and contain approximately 2200 Pg of carbon. Thus, the dynamics of soil carbon plays an important role in the global carbon cycle and climate system. Earth System Models are used to project future interactions between terrestrial ecosystem carbon …
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Multi-scale analysis of carbon stocks and process indicators in the agro-ecosystem of Canterbury, New Zealand
Increasing interest in characterising carbon dynamics in the agricultural landscape has been driven by the clear need for greenhouse gas mitigation strategies in response to global climate change. However, little quantitative information is available about carbon stocks and processes in …
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Effects of Forested Streamside Management Zone Widths and Thinning on Carbon Dynamics and Benthic Macroinvertebrates for Pine Plantations in the Piedmont of Virginia
… the effects these SMZ treatments had on carbon pools, carbon fluxes and environmental conditions in the SMZ. The benthic macroinvertebrate populations present within the stream were also examined because of their relationship to ecosystem carbon dynamics. Carbon storage in plant …
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The effect of protozoan grazers on the cycling of polychlorinated biphenyls (PCBs) in marine systems
Processes affecting organic carbon distribution and composition can control the speciation of organic contaminants such as polychlorinated biphenyls (PCBs) and ultimately determine their residence time in a particular environment. In marine systems, the microbial loop influences organic carbon …
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The Influence of Switchgrass Establishment on Soil Organic Matter Pools in an Agricultural Landscape
… on global biogeochemical cycles, particularly carbon and nitrogen. Conventional row-crop agriculture accelerates the decomposition of soil organic matter, contributing to atmospheric carbon and declining soil fertility. Planting perennial warm season grasses is a useful management alternative …
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Novel analytical strategies for tracing the organic carbon cycle in marine and riverine particles
Particulate organic carbon (POC) in the ocean and mobilized by rivers on land transfers ~0.1% of global primary productivity to the deep ocean sediments. This small fraction regulates the long-term carbon cycle by removing carbon dioxide from the atmosphere for centuries to millennia. This thesis …
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Novel analytical strategies for tracing the organic carbon cycle in marine and riverine particles
Particulate organic carbon (POC) in the ocean and mobilized by rivers on land transfers -0. 1% of global primary productivity to the deep ocean sediments. This small fraction regulates the long-term carbon cycle by removing carbon dioxide from the atmosphere for centuries to millennia. This thesis …
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