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Soil CO2 flux in response to elevated atmospheric CO2 and nitrogen fertilization: patterns and methodsAuthor(s): James M. Vose; Katherine J. Elliott; D.W. Johnson
Source: Advances In Soil Science: Soils and Global Change, p. 199-208
Publication Series: Miscellaneous Publication
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DescriptionThe evolution of carbon dioxide (CO2) from soils is due to the metabolic activity of roots, mycorrhizae, and soil micro- and macro-organisms. Although precise estimates of carbon (C) recycled to the atmosphere from belowground sources are unavailable, Musselman and Fox (1991) propose that the belowground contribution exceeds 100 Pg y-1 globally. This represents a major component of C flux in the global C cycle. Belowground C cycling processes and subsequent soil CO2 fluxes are equally important at ecosystem scales; however, we have limited knowledge of the magnitude of fluxes within and across ecosystems. Increased knowledge of the magnitude of C fluxes, as well as the factors which regulated these fluxes is critical for understanding ecosystem C cycling and potential responses to factors such as climatic change. In this study, we quantified soil CO2 flux from soils growing ponderosa pine (Pinus ponderosa L.) Under conditions of elevated atmospheric CO2 and soil nitrogen (N).
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CitationVose, James M.; Elliott, Katherine J.; Johnson, D.W. 1995. Soil CO2 flux in response to elevated atmospheric CO2 and nitrogen fertilization: patterns and methods. Advances In Soil Science: Soils and Global Change, p. 199-208
- Soil respiration response to three years of elevated CO2 and N fertilization in ponderosa pine (Pinus ponderosa Doug. ex Laws.)
- Among-provence variability of gas exchange and growth in response to long-term elevated CO2 exposure
- Effects of elevated CO2 and N fertilization on soil respiration from ponderosa pine (Pine ponderosa) in open-top chambers
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