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Showing 1 to 20 of 34 for “"sphagnum"”.
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Biogeochemistry of a New England Sphagnum bog.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1977.
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An Isotopic Analysis of Carbon Dynamics in Sphagnum Peat
… peat building plant in northern peatlands, Sphagnum moss, grows in these dissolved carbon rich waters. Understanding Sphagnum carbon cycles is key for radiocarbon dating, peatland restoration, and modelling of methane release from warming peatlands globally. This combined surface and …
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Introgression, Population Structure, and Systematics of the Sphagnum capillifolium complex
… question in evolution and biogeography. Sphagnum subgenus Acutifolia is one of the four major subgenera of Sphagnum peatmoss comprising numerous species with broad geographic ranges and diverse ecological niches within wetland habitats. One group of particular interest within the subgenus …
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Effect of Concentration of Sphagnum Peat Moss on Strength of Binder-Treated Soil
Organic soils are formed as deceased plant and animal wildlife is deposited and decomposed in wet environs. These soils have loose structures, low undrained strengths, and high natural water contents, and require improvement before they can be used as foundation materials. Previous researchers have …
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From Genes to Traits and Ecosystems: Evolutionary Ecology of <i>Sphagnum</i> (Peat Moss)
<p><p>Plants in the genus <i>Sphagnum</i> (peat moss) are the dominant biotic features of boreal peatlands that store nearly one-third of Earth’s terrestrial carbon. Peat mosses are ecosystem engineers and create the peatlands that they inhabit through the accumulation of peat, or partially decayed …
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Effects of soil temperature on Sphagnum moss litter quality and decomposition in a subarctic environment
… attributed to the slow decomposition rate of Sphagnum mosses that facilitates carbon sequestration through the build-up of peat. As climate change is predicted to increase soil temperatures and decomposition rates of organic matter, studying environmental and intraspecific mechanisms that …
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Restoration of lowland raised bogs damaged by peat extraction - with particular emphasis on Sphagnum regeneration.
… Experiments suggest this may severely inhibit Sphagnum growth. Lagoons may increase water storage on a bog surface and facilitate development of raised bog vegetation as floating rafts. This 'hydroseral' approach may be necessary to restore raised bog vegetation to some areas. 3. Hydrochemical …
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Quantifying Sphagnum spp. presence and distribution along a gradient in aeolian mineral deposition in Icelandic mires
… and vascular plants dominated, rather than Sphagnum-dominated. As the dust gradient (Arnalds, 2010) goes from high deposition zones near dust sources to areas with very low deposition further afield, the following study investigated whether the gradual decrease in dust deposition along the …
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SUBSTRATOS ALTERNATIVOS NA ACLIMATIZAÇÃO DE Phargmipedium sargentianum ROLFE (ORCHIDACEAE)
… a proposal for use of alternative substrates for Sphagnum, in the development of seedlings P. sargentianum during the step of acclimatization. For the acclimatization were used plants from in vitro cultivation, in MS medium supplemented with 20 gL-1 sucrose and 7 gL-1 agar, with two years of age …
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Evaluating blanket mire vegetation recovery following hydrological restoration, with specific focus on the influence of Molinia caerulea
… assemblages. Results show that aquatic Sphagnum species had rapid colonisation potential where propagules occur in flow pathways, with 76% of pools containing Sphagnum within 18 months. Sphagnum colonisation and abundance are controlled by pool depth and rainfall consistency, with …
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HORIZONTAL GENE TRANSFER (HGT) AND SPHAGNUM FALLAX: A PHYLOGENETIC LOOK INTO THE OCCURRENCE, PREVALENCE, AND IMPORTANCE OF HORIZONTAL GENE TRANSFER IN A BOG MOSS
… protein sequences from the bog moss known as Sphagnum fallax and performed phylogenetic analyses for each protein sequence/family. The topologies of each constructed phylogenetic tree were studied to find evidence of HGT involving S. fallax. Twenty-three candidate sequences were classified as …
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EFFECTS OF NITROGEN DEPOSITION ON BOREAL BOGS: A THREE YEAR NITROGEN FERTILIZATION AND TRACER EXPERIMENT
… in northern Alberta, Canada. Linear growth of Sphagnum mosses was highly variable. However, both capitulum and stem weight showed increase in weight with N addition, resulting in significant increase of capitulum and stem bulk density with N deposition. Total annual primary production, with …
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On the Recalcitrant Nature of Sphagnum's Cell Wall
… than half of this peat consists of undecomposed Sphagnum moss cell wall materials, prompting the proposal that this genus sequesters more carbon than any other plant. The extraordinary recalcitrance of Sphagnum’s cell wall is central both to the long term persistence of this carbon store and its …
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The effects of rehabilitation management on the vegetation of Fenn’s, Whixall and Bettisfield Mosses National Nature Reserve – a cut-over lowland raised mire
… increase in the target peat-forming species (Sphagnum cuspidatum, Eriophorum angustifolium and E. vaginatum) as a direct response to rehabilitation and correlating positively with a high water table. Permanent quadrat vegetation monitoring was carried out three times at five-year intervals. …
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Assessing the condition of the Flow Country peatlands to support their future protection: Monitoring blanket bog functioning during drought and mapping post-wildfire recovery
… from dominant peatland plant functional types (Sphagnum, graminoids, ericoids) and other cover types (pools and bare peat) were measured and compared across upland and low-lying blanket bog margins and centres, immediately before and during a summer drought in 2018, and over the subsequent year. …
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Developing a trait-based approach to understand <i>Sphagna</i> responses to hydrological stress in the Flow Country
… depends strongly on the traits and plasticity of Sphagnum mosses, which dominate blanket bog vegetation communities. However, the scales at which Sphagna traits vary, and how they translate to ecohydrological function remains unclear. This thesis develops a trait-based perspective for the Flow …
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Geoquímica orgánica y evolución ambiental de turberas de las rasas costeras asturianas
… zona dónde se desarrollan las turberas ácidas de Sphagnum y podría ser particularmente sensible a la variación del clima, al coincidir con el límite de las regiones climáticas Eurosiberiana y Mediterránea. En este trabajo se estudian las turberas de las rasas costeras de Asturias, que se formaron …
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Using the psba Gene as a Measure in Determining the Phylogenetic Relationship among Bryophytes.
… <em>Blasia</em>, <em>Megaceros</em>, and <em>Sphagnum</em> psbA gene sequences were generated from this research. The other 24 sequences were obtained from GenBank. The UPGMA, Neighbor-Joining, and Maximum Parsimony trees generated by molecular evolutionary genetic analysis (MEGA) supported …
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Evolution of stomata in mosses (Bryophyta): From molecules to form and function
… mosses (Takakia, Andreaea, Andreaeobryum and Sphagnum), suggesting that stomata originated in mosses independently of other plants. The occurrence of structurally unique pseudostomata in Sphagnum further confounds the resolution of homology of moss stomata with those of other plants. The five …
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An investigation into the origin and nature of some organic deposits of the Ingleborough region
… spaghum type to light brown less humified Sphagnum imbricatum. As this did not coincide with the suggested position of the VII/VIII boundary of the pollen diagram, a transition zone was postulated from the recurrence surface at 235 cms. to the start of zone VIII at 120 cms. Thieves Moss …
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