| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Dep. of Soil Science, Univ. of Manitoba, Winnipeg, MB, Canada R3T 2N2
Dep. of Land Resource Science, Univ. of Guelph, Guelph, ON, Canada N1G 2W1
*Corresponding author.
ABSTRACT
Soil is an important source for the production of greenhouse gases such as CO2 and N2O. Significant temporal trends exist in the production and concentration of these gases in temperate climates where soils are subject to freezing. We examined the effect freeze-thaw cycles had on soil profile CO2 and N2O concentrations. A multilevel sampling probe was designed to allow sampling the atmosphere composition of soil profiles. Changes in CO2 and N2O gas concentrations in the profile of a loamy sand were studied during two winter periods. Fluxes of N2O were strongly influenced by the formation of a frozen layer that segregated the soil profile into two distinct regions. The surface region was characterized by brief, intense events, which contribute to highly variable CO2 and N2O concentrations near the surface. The subsurface region beneath the ice layer allowed N2O accumulation. The highest concentrations of N2O were observed in the subsurface region following ice-layer formation, indicating that N2O production is not restricted to surface horizons in this soil. Thawing of the frozen layer in the spring resulted in the release of N2O from the subsurface region. The formation of a frozen layer influenced subsurface CO2 accumulation through its influence on water percolation.
Received for publication December 18, 1991.
This article has been cited by other articles:
|
|
 |
|
  C. Wagner-Riddle, Q. C. Hu, E. van Bochove, and S. Jayasundara Linking Nitrous Oxide Flux During Spring Thaw to Nitrate Denitrification in the Soil Profile Soil Sci. Soc. Am. J., May 29, 2008; 72(4): 908 - 916. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. P. Dusenbury, R. E. Engel, P. R. Miller, R. L. Lemke, and R. Wallander Nitrous oxide emissions from a Northern Great Plains soil as influenced by nitrogen management and cropping systems. J. Environ. Qual., March 1, 2008; 37(2): 542 - 550. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. M. DeSutter, T. J. Sauer, T. B. Parkin, and J. L. Heitman A Subsurface, Closed-Loop System for Soil Carbon Dioxide and Its Application to the Gradient Efflux Approach Soil Sci. Soc. Am. J., January 11, 2008; 72(1): 126 - 134. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Q. C. Hu, E. van Bochove, J. Warland, B. Kay, and C. Wagner-Riddle New Method to Simulate Soil Freezing and Thawing Cycles for Studying Nitrous Oxide Flux Soil Sci. Soc. Am. J., October 27, 2006; 70(6): 2106 - 2113. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Rochette, J. Dionne, Y. Castonguay, and Y. Desjardins Atmospheric Composition under Impermeable Winter Golf Green Protections Crop Sci., June 20, 2006; 46(4): 1644 - 1655. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Yu and R. D. DeLaune A Modified Soil Diffusion Chamber for Gas Profile Analysis Soil Sci. Soc. Am. J., May 23, 2006; 70(4): 1237 - 1241. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. M. Al-Kaisi and X. Yin Tillage and Crop Residue Effects on Soil Carbon and Carbon Dioxide Emission in Corn-Soybean Rotations J. Environ. Qual., March 1, 2005; 34(2): 437 - 445. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Pumpanen, H. Ilvesniemi, and P. Hari A Process-Based Model for Predicting Soil Carbon Dioxide Efflux and Concentration Soil Sci. Soc. Am. J., March 1, 2003; 67(2): 402 - 413. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. B. Neilsen, P. M. Groffman, S. P. Hamburg, C. T. Driscoll, T. J. Fahey, and J. P. Hardy Freezing Effects on Carbon and Nitrogen Cycling in Northern Hardwood Forest Soils Soil Sci. Soc. Am. J., November 1, 2001; 65(6): 1723 - 1730. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
X. Hao, C. Chang, F. J. Larney, and G. R. Travis Greenhouse Gas Emissions during Cattle Feedlot Manure Composting J. Environ. Qual., March 1, 2001; 30(2): 376 - 386. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R.M. Bajracharya, R. Lal, and J.M. Kimble Erosion Effects on Carbon Dioxide Concentration and Carbon Flux from an Ohio Alfisol Soil Sci. Soc. Am. J., March 1, 2000; 64(2): 694 - 700. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Vadose Zone Journal | Journal of Plant Registrations | ||||
| Journal of Natural Resources and Life Sciences Education |
Journal of Environmental Quality |
||||
