Physics
Scientific paper
Feb 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3304809b&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 4, CiteID L04809
Physics
19
Atmospheric Composition And Structure: Troposphere: Composition And Chemistry, Biogeosciences: Biosphere/Atmosphere Interactions (0315), Biogeosciences: Trace Gases
Scientific paper
We sampled air in the canopy layer of undisturbed upland forests during wet and dry seasons at three sites in the Brazilian Amazon region and found that both methane (CH4) and carbon dioxide (CO2) mixing ratios increased at night. Such increases were consistent across sites and seasons. A canopy layer budget model based on measured soil-atmosphere fluxes of CO2 was constructed to estimate ecosystem CH4 emission. We estimate that net CH4 emission in upland forests ranged from 2 to 21 mg CH4 m-2 d-1. While the origin of this CH4 source is unknown, these ground based measurements are consistent with recent findings based on satellite observations that indicate a large, unidentified source of CH4 in tropical forest regions.
Braga do Carmo Janaina
Camargo Plínio Barbosa de
Crill Patrick
Dias Jadson Dezincourt
Keller Michael
No associations
LandOfFree
A source of methane from upland forests in the Brazilian Amazon does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A source of methane from upland forests in the Brazilian Amazon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A source of methane from upland forests in the Brazilian Amazon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1491934