Carbon belowground

D. B. Ringelberg, J. O. Stair, J. Almeida, R. J. Norby, E. G. O Neill, and D. C. White, Consequences of rising atmospheric carbon dioxide levels for the belowground microbiota associated with white oak. 3. Environ. Qual. 26 495 (1997). 

Jandl R, Sollins P (1997) Water extractable carbon in relation to belowground carbon cycle. Biol Fertil Soils 25 196-201... 

Ehleringer JR (1991) 13C/12C fractionation and its utility in terrestrial plant studies. In Coleman DC, Fry B (eds) Carbon isotopic techniques. Academic, New York, pp 187-200 Ehleringer JR, Buchmann RN, Flanagan LB (2000) Carbon isotope ratios in belowground carbon cycle processes. Ecol Appl 10 412-422... 

A. (1995). Belowground cycling of carbon in forests and pastures of Eastern Amazonia. Global Biogeochem. Cycles 9(4), 515-528. 

Trumbore, S. (2000) Age of soil organic matter and soil respiration radiocarbon constraints on belowground carbon dynamics. Ecol. Appl. 10, 399—411. 

Other belowground vegetative structures (i.e., roots and seed tuber) have only a relatively small proportion of the total carbon, though the root contribution is typically underestimated due to incomplete recovery during excavation. Thus, aboveground plant parts, in particular stems/branches,... 

Until recently, EOR was not thought of as a carbon storage strategy. Once the C02 has done its work and production is concluded, EOR project managers have not considered whether the C02 would remain belowground for decades, centuries, or millennia. Joint optimization of EOR and long-... 

Including food-web processes in quantitative models of carbon and nitrogen cycling of forest ecosystems. The competition between sapro-trophic and mycorrhizal fungi for resources is a key aspect of belowground functioning (Lindahl et al., 2002). Quite detailed computer models... 

Davidson, E. A., Savage, K., Bolstad, P. et al. (2002). Belowground carbon allocation in forests estimated from litterfall and IRGA-based soil respiration measurements. Agricultural and Forest Meteorology, 113, 39-51. 

In the toposequence of San Carlos de Rio Negro, Tiessen et al. (1994b) indeed found that distributions of carbon, nitrogen, and phosphorus of total plant biomass (above- plus belowground, Medina and Cuevas 1989) follow those of soil C, N,... 

Tmmbore S. E., Davidson E. A., Decamargo P. B., Nepstad D. C., and Martinelli L. A. (1995) Belowground cycling of carbon in forests and pastures of eastern Amazonia. Global Biogeochem. Cycles 9(4), 515-528. 

Curtis P. S., Zak D. R., Pregitzer K. S., Lussenhop J., and Teeri J. A. (1996) Linking above- and belowground responses to rising CO2 in northern deciduous forest species. In Carbon Dioxide and Terrestrial Ecosystems (eds. G. W. Koch and H. A. Mooney). Academic Press, San Diego, CA, pp. 41 —51. 

Figure 2 Conceptual model of carbon cycling in the litter-soil system. In each horizon or depth increment, SOM is represented by three pools labile SOM, slow SOM, and passive SOM. Inputs include aboveground litterfall and belowground root turnover and exudates, which will be distributed among the pools based on the biochemical nature of the material. Outputs from each pool include mineralization to CO2 (dashed lines), humification (labile slow passive), and downward transport due to leaching and physical mixing. Communition by soil fauna will accelerate the decomposition process and reveal previously inaeeessible materials. Soil mixing and other disturbances can also make physically protected passive SOM available to microbial attack (passive slow).

Silver W. E., Neff J., McGroddy M., Veldkamp E., Keller M., and Cosme R. (2000) Effects of soil texture on belowground carbon and nutrient storage in a lowland Amazonian forest ecosystem. Ecosystems V3(N2), 193-209. 

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