Wetlands are the largest and most uncertain biological source of atmospheric methane, with hydrological fluctuations exacerbating this uncertainty. Here we critically explore the complex relationship between hydrological fluctuations and methane emission
a threshold at which bubble-mediated fluxes begin to dominate emissions50; (2) we eliminated the most extreme emission values by capping fluxes above 2 s.d. of the mean; and (3) we reducedkin
Aerobic methane oxidation plays a significant role in controlling methane emission from the ocean to the atmosphere. However, due to scarce MOx rate measurements, quantitative estimates of this process on a global scale are unconstrained. Therefore, we extrapolated global MOx rates using RRF machine-l...
Livestock fed higher quality feed tend to produce less methane than those fed low quality feed. Swine, since they are not ruminants,have the lowest emissions factor of any class of livestock. The IPCC methane emission factor used by EPA to estimate enteric fermentation from swine is 1.5 kg met...
The coefficient of variation (CV) was greatest for emissions in oceans and estuaries, while the highest emission rate was recorded in wetlands and lakes. Efflux from coastal areas and estuaries was higher than that from upwelling areas and deep seas. Concerning wetland types, marshes showed the ...
Laboratory-Scale Measurements and Simulations of Effect of Application Methods on Soil Methyl Bromide Emission Methyl bromide (bromomethane, MeBr), which originates from the oceans, fumigation, and a few other sources, is reportedly contributing to the ozone depleti... J Gan,SR Yates,WF Spencer...
RJ Cicerone,JD Shetter,CC Delwiche - 《Journal of Geophysical Research Oceans》 被引量: 789发表: 1983年 Methane emission during a cultivation period from an Italian rice paddy CH4 release rates from rice paddies were measured in Vercelli, Italy, in 1983 during a complete vegetation period, usin...
Using correlative meteorological analyses, we show strong seasonal correlations (r = 0.6–0.8) between large-scale changes in sea surface temperature over the tropical oceans and regional variations in methane emissions (via changes in rainfall and temperature) over tropical South America and ...
Methane emission from Siberian arctic polygonal tundra: eddy covariance measurements and modeling Eddy covariance measurements of methane flux were carried out in an arctic tundra landscape in the central Lena River Delta at 72掳N. The measurements cove... C Wille,L Kutzbach,T Sachs,... - 《Glo...
Using night-light imagery from satellites, we discovered more offshore platforms in this region than are accounted for in the emission inventory. Our results demonstrate that current knowledge regarding CH4 emissions from offshore platforms in Southeast Asia has considerable uncertainty and therefore, ...