Long-term measurements of CH{sub 4} and N{sub 2}O fluxes in the Colorado short grass steppe
- USDA/Agricultural Research Service, Ft. Collins, CO (United States)
- Colorado State Univ., Ft. Collins, CO (United States); and others
The fluxes of CH{sub 4} and N{sub 2}O and various soil parameters were measured weekly, year-round in grasslands in northeastern Colorado from April, 1990 until the present. Many of the flux measurement sites were imposed upon long-term N fertilization and tillage studies. The studies demonstrate the interannual variations in gas fluxes and show that the winter-time component contribute 15-40% of the total annual N{sub 2}O emissions and CH{sub 4} consumption in these soils. Both tillage and N fertilization 5-13 years earlier increased N{sub 2}O emissions and decreased soil consumption of atmospheric CH{sub 4}. Ecosystem stabilization following disturbance from plowing and N fertilization appears to require 20 to 50 years in this grassland.
- OSTI ID:
- 95853
- Report Number(s):
- CONF-9507129--
- Journal Information:
- Bulletin of the Ecological Society of America, Journal Name: Bulletin of the Ecological Society of America Journal Issue: 2 Vol. 76; ISSN BECLAG; ISSN 0012-9623
- Country of Publication:
- United States
- Language:
- English
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