Soil carbon dioxide partial pressure and dissolved inorganic carbonate chemistry under elevated carbon dioxide and ozone

  title={Soil carbon dioxide partial pressure and dissolved inorganic carbonate chemistry under elevated carbon dioxide and ozone},
  author={Noah J. Karberg and Kurt S. Pregitzer and John S. King and Alexander L. Friend and John R. I. Wood},
Global emissions of atmospheric CO2 and tropospheric O3 are rising and expected to impact large areas of the Earth’s forests. While CO2 stimulates net primary production, O3 reduces photosynthesis, altering plant C allocation and reducing ecosystem C storage. The effects of multiple air pollutants can alter belowground C allocation, leading to changes in the partial pressure of CO2 (pCO2) in the soil , chemistry of dissolved inorganic carbonate (DIC) and the rate of mineral weathering. As this… 
Elevated air carbon dioxide concentrations increase dissolved carbon leaching from a cropland soil
Increasing leaching losses of carbon from soils due to accelerated weathering and increasing concentrations of dissolved carbon as a result of intensified soil respiration are suspected to provide a
Significance of the carbon sink produced by H2O–carbonate–CO2–aquatic phototroph interaction on land
One of the most important questions in the science of global change is how to balance the atmospheric CO2 budget. There is a large terrestrial missing carbon sink amounting to about one billion
No overall stimulation of soil respiration under mature deciduous forest trees after 7 years of CO2 enrichment
The anthropogenic rise in atmospheric CO2 is expected to impact carbon (C) fluxes not only at ecosystem level but also at the global scale by altering C cycle processes in soils. At the Swiss Canopy
Did elevated atmospheric CO2 alter soil mineral weathering?: an analysis of 5‐year soil water chemistry data at Duke FACE study
A principal driver of biogeochemical weathering of the Earth's crust is soil CO2, produced mainly by plant roots and soil heterotrophs, a water‐soluble gas that forms carbonic acid which reacts with
Inorganic carbon fluxes across the vadose zone of planted and unplanted soil mesocosms
The efflux of carbon dioxide (CO 2 ) from soils influences atmospheric CO 2 concentrations and thereby climate change. The partitioning of inorganic carbon (C) fluxes in the vadose zone between
Micrometeorological and biophysical parameters of chick pea under the interaction of elevated surface ozone and carbon dioxide
Increase of concentration of greenhouse gases, like carbon dioxide (CO2) and tropospheric ozone (O3), are important factors affecting the global climate change. Ground level ozone or tropospheric


Soil CO2 dynamics, acidification, and chemical weathering in a temperate forest with experimental CO2 enrichment
Soils constitute a major component of the global carbon cycle that will be affected by anthropogenic additions of CO2 to the atmosphere. As part of the Duke Forest Free‐Air CO2 Enrichment (FACE)
Elevated atmospheric CO2, fine roots and the response of soil microorganisms: a review and hypothesis
There are insufficient data to predict how microbial activity and rates of soil C and N cycling will change as the atmospheric CO 2 concentration continues to rise, and it is argued that current gaps in understanding of fine-root biology limit the ability to predict the response of soil microorganisms to rising atmosphericCO 2.
Microbial community composition and function beneath temperate trees exposed to elevated atmospheric carbon dioxide and ozone
It is found that elevated CO2 increased fungal activity and microbial metabolism of cellobiose, and that microbial processes under early-successional aspen and birch species were more strongly affected by CO2 and O3 enrichment than those under late- successional maple.
Effects of elevated atmospheric CO2 on fine root production and activity in an intact temperate forest ecosystem
The data show that the early response of a loblolly pine forest ecosystem subject to CO2 enrichment is an increase in its fine root population and a trend towards higher total RNPP after two years of CO2 fumigation.
Net primary production of a forest ecosystem with experimental CO2 enrichment
The response of this young, rapidly growing forest to carbon dioxide may represent the upper limit for forest carbon sequestration.
Atmospheric CO2, soil nitrogen and turnover of fine roots
summary In most natural ecosystems a significant portion of carbon fixed through photosynthesis is allocated to the production and maintenance of fine roots, the ephemeral portion of the root system
The objective of this experiment was to understand how atmospheric carbon dioxide (CO2) and soil-nitrogen (N) availability influence Populus tremuloides fine-root growth and morphology. Soil-N
▪ Abstract Fossil fuels play a crucial role in satisfying growing world energy demands, but their continued use could cause irreparable harm to the environment. Unless virtually all anthropogenic
Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems
This book reports on the knowledge of the sensitivities and responses of forests, wetlands and crops to airborne pollutants. Pollutants examined include: acidic depositions, heavy metal particulates,
Acclimation of photosynthesis to increasing atmospheric CO2: The gas exchange perspective
  • R. Sage
  • Environmental Science
    Photosynthesis Research
  • 2004
Under drought or humidity stress, Ci/Ca declined in high-CO2 grown plants, indicating stomata will become more conservative during stress episodes in future high CO2 environments.