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Competing roles of rising CO2 and climate change in the contemporary European carbon balance
Competing roles rising CO2 d climate change European carbon balance
2010/1/15
Natural ecosystems respond to, and may affect climate change through uptake and storage of atmospheric CO2. Here we use the land-surface and carbon cycle model JULES to simulate the contemporary Europ...
Atmospheric CO2 modeling at the regional scale:an intercomparison of 5 meso-scale atmospheric models
Atmospheric CO2 modeling regional scale 5 meso-scale atmospheric models
2010/1/15
Atmospheric CO2 modeling in interaction with the surface fluxes, at the regional scale is developed within the frame of the European project CarboEurope-IP and its Regional Experiment component. In th...
CO2 exchange and carbon balance in two grassland sites on eutrophic drained peat soils
CO2 exchange carbon balance grassland sites eutrophic drained peat soils
2010/1/14
In this study we investigated the role of intensive and extensive dairy farm practices on CO2 exchange and the carbon balance of peatlands by means of eddy covariance (EC) measurements. Year long EC m...
CO2 flux determination by closed-chamber methods can be seriously biased by inappropriate application of linear regression
CO2 flux determination closed-chamber methods linear regression
2010/1/14
Closed (non-steady state) chambers are widely used for quantifying carbon dioxide (CO2) fluxes between soils or low-stature canopies and the atmosphere. It is well recognised that covering a soil or v...
Variability of annual CO2 exchange from Dutch grasslands
Variability annual CO2 exchange Dutch grasslands
2010/1/14
An intercomparison is made of the Net Ecosystem Exchange of CO2, NEE, for eight Dutch grassland sites: four natural grasslands, two production grasslands and two meteorological stations within a rotat...
Community shifts and carbon translocation within metabolically-active rhizosphere microorganisms in grasslands under elevated CO2
Community shifts carbon translocation metabolically-active rhizosphere microorganisms
2010/1/14
The aim of this study was to identify the microbial communities that are actively involved in the assimilation of rhizosphere-C and are most sensitive in their activity to elevated atmospheric CO2 in ...
The fate of pelagic CaCO3 production in a high CO2 ocean:a model study
fate pelagic CaCO3 production high CO2 ocean model
2010/1/14
This model study addresses the change in pelagic calcium carbonate production (CaCO3, as calcite in the model) and dissolution in response to rising atmospheric CO2. The parameterization of CaCO3 prod...
Assessing the potential long-term increase of oceanic fossil fuel CO2 uptake due to CO2-calcification feedback
potential long-term increase oceanic fossil fuel CO2-calcification feedback
2010/1/14
Plankton manipulation experiments exhibit a wide range of sensitivities of biogenic calcification to simulated anthropogenic acidification of the ocean, with the "lab rat" of planktic calcifiers, Emil...
Direct and indirect metabolic CO2 release by humanity
Direct and indirect metabolic CO2 release humanity
2010/1/14
The direct CO2 released by respiration of humans and domesticated animals, as well as CO2 derived from the decomposition of their resulting wastes was calculated in order to ascertain the direct and i...
Effects of climate warming and declining species richness in grassland model ecosystems:acclimation of CO2 fluxes
climate warming declining species richness grassland model ecosystems CO2 fluxes
2010/1/14
To study the effects of warming and declining species richness on the carbon balance of grassland communities, model ecosystems containing one, three or nine species were exposed to ambient and elevat...
On the application and interpretation of Keeling plots in paleo climate research – deciphering δ13C of atmospheric CO2 measured in ice cores
application interpretation Keeling plots paleo climate research ice cores
2010/1/13
The Keeling plot analysis is an interpretation method widely used in terrestrial carbon cycle research to quantify exchange processes of carbon between terrestrial reservoirs and the atmosphere. Here,...
Effects of free atmospheric CO2 enrichment (FACE),N fertilization and poplar genotype on the physical protection of carbon in the mineral soil of a polar plantation after five years
free atmospheric CO2 enrichment N fertilization poplar genotype physical protection
2010/1/13
Free air CO2 enrichment (FACE) experiments in aggrading forests and plantations have demonstrated significant increases in net primary production (NPP) and C storage in forest vegetation. The extra C ...
Water use strategies and ecosystem-atmosphere exchange of CO2 in two highly seasonal environments
Water use strategies ecosystem-atmosphere exchange CO2 seasonal environments
2010/1/13
We compare assimilation and respiration rates, and water use strategies in four divergent ecosystems located in cold-continental central Siberia and in semi-arid southern Africa. These seemingly unrel...
Controls over N2O,NOx and CO2 fluxes in a calcareous mountain forest soil
Controls N2O NOx CO2 fluxes calcareous mountain forest soil
2010/1/13
We measured nitrogen oxides (N2O and NOx), dinitrogen (N2) and carbon dioxide (CO2) emissions from a spruce-fir-beech forest soil in the North Tyrolean limestone Alps in Austria. The site received 10....
Diatoms and their influence on the biologically mediated uptake of atmospheric CO2 in the Arabian Sea upwelling system
Diatoms biologically mediated uptake atmospheric CO2 Sea upwelling system
2010/1/13
Sediment trap experiments have been carried out in order to study processes controlling shifts from diatom to non-diatom dominated systems in the western Arabian Sea. One of our major problems was to ...