Annual nitrous oxide fluxes from temperate forest soils in the northeastern United States
Journal Article
·
· Journal of Geophysical Research; (USA)
- Ecosystems Center, Woods Hole, MA (USA)
- Univ. of New Hampshire, Durham (USA)
Nitrous oxide (N{sub 2}O) fluxes were measured from soils in a red pine plantation and a mixed hardwood stand in the northeastern US. On an annual basis, the pine stand had an efflux of 0.010 {plus minus} 0.015 kg N/ha/yr and the hardwood stand had an efflux of 0.017 {plus minus} 0.017 kg N/ha/yr. Low net nitrification rates in both stands are suggested as the reason for the low rates of N{sub 2}O emissions. Slight seasonal trends were noted in both stands, with highest efflux rates in early summer and late fall. Both stands showed small but extended periods of uptake during summer and early fall. Diel patterns were not observed in either stand. This study suggests that on a global basis, a lower limit for N{sub 2}O emissions from temperate forests is 0.012 Tg N/yr, contributing less than 1% of the estimated total emissions from terrestrial sources.
- OSTI ID:
- 6100014
- Journal Information:
- Journal of Geophysical Research; (USA), Journal Name: Journal of Geophysical Research; (USA) Vol. 95:D9; ISSN 0148-0227; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CLIMATES
CONIFERS
DEGASSING
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
FORESTS
GLOBAL ASPECTS
GREENHOUSE EFFECT
MASS TRANSFER
NITRIFICATION
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PINES
PINOPHYTA
PLANTS
SEASONAL VARIATIONS
SOILS
TEMPERATE ZONES
TREES
USA
VARIATIONS
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CLIMATES
CONIFERS
DEGASSING
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
FORESTS
GLOBAL ASPECTS
GREENHOUSE EFFECT
MASS TRANSFER
NITRIFICATION
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PINES
PINOPHYTA
PLANTS
SEASONAL VARIATIONS
SOILS
TEMPERATE ZONES
TREES
USA
VARIATIONS