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.
Results
Showing 1 to 14 of 14 for “"peat soils"”.
-
The Character of the Peat Soils of Anoka County
University of Minnesota Masters thesis. May 1917. Advisor: F.J. Alway. 1 computer file (PDF); vii, 190 pages.
-
Impact of extreme hydrological conditions on belowground carbon cycling and redox dynamics in peat soils from a northern temperate fen
Peatlands have an important role in the global carbon cycle and constitute the largest pool of carbon stored in terrestrial ecosystems due to their disproportionally high areal soil carbon density. This globally relevant carbon stock is the result of a process mostly initiated after the last …
-
Bioremediation of chlorinated ethanes and ethenes in vertical flow engineered wetland systems
… Studies conducted with different amounts of peat and sand mixtures to investigate long term effects of organic carbon depletion in engineered wetland systems showed complete biodegradation of 1,1-DCA in all soil mixtures with no significant difference in the rate constants. However, …
-
The role of blanket peat moorland management in the generation and amelioration of discolouration of surface water supplies
… particularly those areas located on deep blanket peat soils. The principal aim of this study was to evaluate the role of catchment management in the production of discoloured surface runoff and DOC flux from catchments used as gathering grounds for public water supply. The investigation focused on …
-
Rate-induced tipping to metastable Zombie fires
… the cause of so-called Zombie fires observed in peatlands, that disappear from the surface, smoulder underground during the winter, and ''come back to life" in the spring. Here, we propose rate-induced tipping (R-tipping) to a subsurface hot metastable state in bioactive peat soils as a main …
-
Carbon fluxes at an upland blanket bog in the north Pennines
The peat soils found in blanket bogs are significant stores of carbon. The degree to which these ecosystems are currently functioning as sinks or sources of carbon is not clear. There is a paucity of measurements from suitable sites but the available evidence suggests that certain sites might be …
-
The Impacts of Heather and Grassland Burning in the Uplands: Creating Sustainable Strategies
Both nationally and globally, UK upland peat is an important store of carbon as well as a source of other important ecosystem services. However, concerns have been raised regarding the stability of these stores. Significant increases in water colour and dissolved organic carbon (DOC) from …
-
Effect of peat solidification on macronutrients in soils associated with palm oil plantation in peat area
… are factors that affect the chemicals in the peat soil stabilization through leaching. The study aims to identify the concentration of elements and nutrients on peat solidification of cement (OPC), fly ash and bottom ash. Lab scale physical model was set up in different conditions with …
-
Influence of post-cyclic loading on hemic peat
Construction on peat soils has proven to be a challenging task to civil engineers since this soil type has a significant issue that arises from common problems construction of roads, housing and embankment construction with regard to peat are stability, settlements and major problems were …
-
Characterizing channel migration habits, sediment-transport capacity and flow dynamics in peatlands: an example from Cedar Creek, Minnesota U.S.A.
Peatlands are essential to the global carbon cycle as the terrestrial carbon storage capacity of these environments may store the equivalent of two-thirds, if not more, of atmospheric carbon. Of particular importance to the carbon flux and storage capacity of a peatland are the hydrologic …
-
An investigation of the biogeochemical exchange of the macro plant nutrients phosphorus and nitrogen on rewetted peat soil on the Somerset Levels and Moors.
… of phosphate, nitrate, and iron on a peat-based agricultural wetland; the factors affecting the temporal but also spatial distribution of phosphate, nitrate, and iron; and how restoration activities on a peat-based wetland impact these concentrations. Iron can bind to bioavailable …
-
Constructed treatment wetlands: Tools to attenuate diffuse agricultural pollution and enhance the biodiversity of eutrophic peat lake ecosystems
… biodiversity, health and resilience. Shallow peat lakes in the Waikato region of New Zealand have catchment soils that are highly erodible and readily leach nutrients, with low capacity to assimilate elevated loads of N, P and SS. These lakes have some of the poorest water quality amongst …