Carbon Cycling
Net primary production and carbon cycling in coast redwood forests of central California
... Although mature redwoods have thick bark that allows the trees to survive moderately intense fires [6], logging removed the majority of coast redwood stands over the past 200 years [4]. Nonetheless, climate change may be ...
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Viral and metabolic controls on high rates of microbial sulfur and carbon cycling in wetland ecosystems
... regional carbon and sulfur cycling, the underlying microbial populations driving these processes and the potential controls on their activity are poorly ...and carbon-cycling microbial hosts ...
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Dynamics of nitrogen and carbon cycling associated with greenhouse gas emissions in the salt affected soils
... and carbon dynamics associated with soil-induced gas emissions under salinity are not well ...soil carbon and nitrogen cycling associated with greenhouse gas emissions, plant growth and fertilizer ...
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Influence of grazing and precipitation on ecosystem carbon cycling in a mixed-grass prairie
... Carbon cycling in grasslands has been found to respond not only to total precipita- tion (Lauenroth and Sala 1992; Milchunas et al. 1994; Bradford et al. 2006), but also to the frequency and timing of ...
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Novel Autotrophic Organisms Contribute Significantly to the Internal Carbon Cycling Potential of a Boreal Lake
... organic carbon inputs from the catchment area, the lake metabolism is expected to be dom- inated by heterotrophic ...autotrophic carbon fixation and internal carbon cycling is high throughout ...
13
Cryogenic carbon cycling at an Icelandic glacier
... glacial carbon dynamics. Firstly, meltwater acts as a vector of dissolved carbon transport, with most carbon exisiting in dissolved or particulate ...surficial carbon to the subglacial system, ...
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Permafrost soils and carbon cycling
... of carbon–climate feedbacks caused by warming of northern circumpolar regions (Koven et ...organic carbon stored in permafrost soils to climatic change, and how this varies across land-cover classes or soil ...
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Evaluation of terrestrial pan-Arctic carbon cycling using a data-assimilation system
... Arctic ecosystems play a significant role in the global car- bon (C) cycle (Hobbie et al., 2000; McGuire et al., 2012). Slow organic matter decomposition rates due to cold and poorly drained soils in combination with ...
23
Hydrothermal activity, functional diversity and chemoautotrophy are major drivers of seafloor carbon cycling
... chemosynthetic carbon was generally well assimilated into the wider food web (rather than representing a spatially concurrent, yet iso- lated, set of trophic ...to cycling efficiency, which declined with ...
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Implications of accounting for land use in simulations of ecosystem carbon cycling in Africa
... and carbon allocation to leaves, fine roots and stems (sapwood) are modelled at a yearly time step, inde- pendently for each tree, or generically for C 3 and C 4 ...
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Shifting mineral and redox controls on carbon cycling in seasonally flooded mineral soils
... C cycling in season- ally flooded soils through its combined impact on oxygen availability, root dynamics, and mineral composition; but how the relative contribution of these biogeochemical con- trols vary across ...
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Effects of eutrophication on sedimentary organic carbon cycling in five temperate lakes
... Abstract. Even though human-induced eutrophication has severely impacted temperate lake ecosystems over the last centuries, the effects on total organic carbon (TOC) burial and mineralization are not well ...
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Carbon cycling dynamics in the seasonal sea ice zone of East Antarctica
... spring/summer periods, HSSW is modified by ice melt and solar warming to form Antarctic Surface Water (ASW) (Nunes Vaz & Lennon, 1996). A complex suite of physical and biological factors drives considerable ...
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Oxygen as a control on seafloor biological communities and their roles in sedimentary carbon cycling
... environments, including an estuary, a deep Norwegian fjord (Witte et al. 2003a), the Porcupine Abyssal Plain (Witte et al. 2003b), the North Sea, and shallow and deep Mediterranean and Northeast Atlantic sites (Moodley ...
12
Land use driven change in soil pH affects microbial carbon cycling processes
... organic carbon (SOC) storage 1,2 ...largest carbon (C) pool in the terrestrial biosphere containing twice as much C as in the atmosphere, with the topsoil (0–30 cm) containing approximately half the amount ...
11
Anaerobic carbon cycling pathways in the subseafloor investigated via functional genes, chemical gradients, stable carbon isotopes, and thermodynamic calculations
... organic carbon or other isotopically light compounds of the organic carbon pool; however, this interpretation appears less likely, as lipids have been shown to represent a small portion ...
145
The role of continental shelves in nitrogen and carbon cycling: Northwestern North Atlantic case study
... Different mechanisms have been suggested by which con- tinental shelves could contribute significantly to the export of carbon to the deep ocean. In addition to the physical and bio- logical Continental Shelf ...
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An unexpected role for mixotrophs in the response of peatland carbon cycling to climate warming
... he authors would like to thank T. Sime-Ngando, J. Colombet and Karine Greiner for their help with the low cytometry, and M-L Toussaint and G. Bernard for ield assistance. his research is part of the ANR PEATWARM project ...
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Carbon cycling in the North American coastal ocean: a synthesis
... Le Quéré, C., Moriarty, R., Andrew, R. M., Canadell, J. G., Sitch, S., Korsbakken, J. I., Friedlingstein, P., Peters, G. P., Andres, R. J., Boden, T. A., Houghton, R. A., House, J. I., Keeling, R. F., Tans, P., Arneth, ...
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Effects of grazer exclusion on carbon cycling in created freshwater wetlands
... wetlands, and may fail to properly cycle carbon when intensive grazing is prevalent (Hirota et al., 2005). Herbivorous waterfowl were seen in A1N throughout the course of this study, and Lodge (2017) observed a ...
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