You are here

Pressure pumping of carbon dioxide from soil

Posted date: May 29, 2015
Publication Year: 
2000
Authors: Takle, E. S.; Brandle, J. R.; Schmidt, R. A.; Garcia, R.; Litvina, I. V.; Doyle, G.; Zhou, X.; Hou, Q.; Rice, C. W.; Massman , William J. , Jr
Publication Series: 
Paper (invited, offered, keynote)
Source: In: 24th Conference on Agricultural and Forest Meteorology; 14th Conference on Biometeorology and Aerobiology; 2000 August 14-18; Davis, CA. Boston, MA: American Meteorological Society. p. 190-191.

Abstract

Recent interest in atmospheric increases in carbon dioxide have heightened the need for improved accuracy in measurements of fluxes of carbon dioxide from soils. Diffusional movement has long been considered the dominant process by which trace gases move from the subsurface source to the surface, although there has been some indication that atmospheric pressure fluctuations also might play a role (Clark and Waddington, 1991 , and Massman et al, 1997). A related question centers on what possible influence the C02 measurement chamber might have on the microscale pressure field at the measurement site. We have measured carbon dioxide fluxes and atmospheric pressure fluctuations concurrently at the soil surface under conditions of natural and artificial pressure pumping with the intent of providing some answers to these questions.

Citation

Takle, E. S.; Brandle, J. R.; Schmidt, R. A.; Garcia, R.; Litvina, I. V.; Doyle, G.; Zhou, X.; Hou, Q.; Rice, C. W.; Massman, W. J. 2000. Pressure pumping of carbon dioxide from soil. In: 24th Conference on Agricultural and Forest Meteorology; 14th Conference on Biometeorology and Aerobiology; 2000 August 14-18; Davis, CA. Boston, MA: American Meteorological Society. p. 190-191.