The global carbon sink: a grassland perspective

@article{Scurlock1998TheGC,
  title={The global carbon sink: a grassland perspective},
  author={Jonathan Scurlock and Dale O. Hall},
  journal={Global Change Biology},
  year={1998},
  volume={4}
}
The challenge to identify the biospheric sinks for about half the total carbon emissions from fossil fuels must include a consideration of below‐ground ecosystem processes as well as those more easily measured above‐ground. Recent studies suggest that tropical grasslands and savannas may contribute more to the ‘missing sink’ than was previously appreciated, perhaps as much as 0.5 Pg (= 0.5 Gt) carbon per annum. The rapid increase in availability of productivity data facilitated by the Internet… 

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References

SHOWING 1-10 OF 36 REFERENCES

Carbon storage by introduced deep-rooted grasses in the South American savannas

ESTIMATES of the global carbon dioxide balance have identified a substantial 'missing sink' of 0.4–4.3 Gt per year1. It has been suggested that much of this may reside in the terrestrial biosphere2.

Climate Change and Productivity of Natural Grasslands

Natural grasslands, especially in the tropics, urgently need more detailed study in order to determine the response of this undervalued major ecosystem type to possible climate changes. Feedback

Rapid Exchange Between Soil Carbon and Atmospheric Carbon Dioxide Driven by Temperature Change

Comparison of 14C (carbon-14) in archived (pre-1963) and contemporary soils taken along an elevation gradient in the Sierra Nevada, California, demonstrates rapid (7 to 65 years) turnover for 50 to

A Large Northern Hemisphere Terrestrial CO2 Sink Indicated by the 13C/12C Ratio of Atmospheric CO2

A study of weekly samples from a global network of 43 sites defined the latitudinal and temporal patterns of the two carbon sinks and identified those processes that would cause the terrestrial biosphere to absorb carbon dioxide in such large quantities.

Terrestrial ecosystems and the carbon cycle

The terrestrial biosphere plays an important role in the global carbon cycle. In the 1994 Intergovernmental Panel Assessment on Climate Change (IPCC), an effort was made to improve the quantification

Primary Production in Grasslands and Coniferous Forests with Climate Change: An Overview.

  • S. LongP. Hutchin
  • Environmental Science
    Ecological applications : a publication of the Ecological Society of America
  • 1991
It is concluded that there is insufficient information to predict accurately the response of primary production to climate change, and mechanistic models of production compound the errors associated with individual process responses with uncertainties surrounding interaction and scaling up.

Possibilities for carbon sequestration in tropical and subtropical soils

Soil organic matter is a key component of all terrestrial ecosystems, and any variation in its composition and abundance has important effects on many of the processes that occur within the system.

A latitudinal gradient in carbon turnover times in forest soils

ATTEMPTS to model the global carbon cycle, and anthropogenic modifications to carbon flow between the atmospheric, oceanic and terrestrial carbon reservoirs, commonly rely on values assumed for the

Terrestrial carbon storage resulting from CO2 and nitrogen fertilization in temperate grasslands

A temperate grassland model has been used to simulate carbon sequestration under various environmental conditions. The results suggest that the CO2 and nitrogen fertilization that has occurred may

Organic Carbon in Soils of the World

The C stored in soils is nearly three times that in the aboveground biomass and approximately double that in the atmosphere. Reliable estimates have been difficult to obtain due to a lack of global