Results 21 to 30 of about 354,003 (282)

Energy input is primary controller of methane bubbling in subarctic lakes [PDF]

, 2014
Emission of methane (CH4) from surface waters is often dominated by ebullition (bubbling), a transport mode with high‐spatiotemporal variability. Based on new and extensive CH4 ebullition data, we demonstrate striking correlations (r2 between 0.92 and 0 ...
Anthony, Bastviken, Bastviken, Boylen, Brett F. Thornton, Callaghan, Christensen, Cole, David Bastviken, Downing, Downing, Duc, Golubyatnikov, Houser, Jackowicz-Korczynski, Karlsson, Karlsson, Kohler, Laudon, Malmer, Martin Wik, Olefeldt, Patrick M. Crill, Prowse, Repo, Rouse, Ruth K. Varner, Sally MacIntyre, Serreze, Smith, Walter, Walter, Wik, Wik, Yamamoto, Zeikus   +35 more
core   +3 more sources

Airborne observations of methane emissions from rice cultivation in the Sacramento Valley of California [PDF]

, 2012
Airborne measurements of methane (CH4) and carbon dioxide (CO2) were taken over the rice growing region of California's Sacramento Valley in the late spring of 2010 and 2011.
Andrews, AE, Atlas, EL, Blake, DR, Daube, BC, Dlugokencky, EJ, Fischer, ML, Goldstein, AH, Guha, A, Holloway, JS, Karl, T, Kofler, J, Kosciuch, E, Misztal, PK, Parrish, DD, Peischl, J, Perring, AE, Pollack, IB, Ryerson, TB, Santoni, GW, Schwarz, JP, Spackman, JR, Trainer, M, Wofsy, SC   +22 more
core   +1 more source

Fabricating a Polysulfone-ZIF-8 Composite Membrane for Separating CO2 and CH4 [PDF]

Iranian Journal of Chemical Engineering
In this research, a mixed matrix membrane based on polysulfone and zinc nitrate-methylimidazole fillers was synthesized to improve the ability of the polymer membrane for the separation of CO2 and CH4.
Pouneh Ramezani, Omid Alizadeh, Masoud Mokhtary   +2 more
doaj   +1 more source

Methanogenesis exceeds CH4 consumption in eutrophic lake sediments

Limnology and Oceanography Letters, 2021
Lakes and reservoirs collectively contribute significant amounts of methane (CH4) to the global atmosphere. If CH4 production were not at least partially balanced by consumption (oxidation) in most of these systems, they could potentially emit an order ...
Sofia L. D'Ambrosio, John A. Harrison
doaj   +1 more source

Dominance of Diffusive Methane Emissions From Lowland Headwater Streams Promotes Oxidation and Isotopic Enrichment

Frontiers in Environmental Science, 2022
Inland waters are the largest natural source of methane (CH4) to the atmosphere, yet the contribution from small streams to this flux is not clearly defined.
Andrew L. Robison, Andrew L. Robison, Wilfred M. Wollheim, Clarice R. Perryman, Annie R. Cotter, Jessica E. Mackay, Ruth K. Varner, Paige Clarizia, Jessica G. Ernakovich   +8 more
doaj   +1 more source

Patents and Competition in the Automobile Industry [PDF]

, 1948
Methane (CH4) fluxes from world rivers are still poorly constrained, with measurements restricted mainly to temperate climates. Additional river flux measurements, including spatio-temporal studies, are important to refine extrapolations.
Ballester, Maria V. R., Bastviken, David, Krusche, Alex V., Richey, Jeffrey E., Sawakuchi, Andre O., Sawakuchi, Henrique O.   +5 more
core   +3 more sources

Methane emissions from dairy heifers as affected by residual feed intake and breed : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Animal Science at Massey University, Manawatū, New Zealand [PDF]

, 2018
Figures 2.5, 2.6, 2.7, 2.8, 2.9, 3.1, 3.2 & 3.3 have been removed for copyright reasons, but may be accessed via their sources listed in the References.
Flay, Holly Ellissa
core   +1 more source

Making plant methane formation visible—Insights from application of 13C‐labeled dimethyl sulfoxide

Plant-Environment Interactions, 2022
Methane (CH4) formation by vegetation has been studied intensively over the last 15 years. However, reported CH4 emissions vary by several orders of magnitude, thus making global estimates difficult. Moreover, the mechanism(s) for CH4 formation by plants
Moritz Schroll, Katharina Lenhart, Steffen Greiner, Frank Keppler   +3 more
doaj   +1 more source

An experimental study on nonlinear seepage characteristics in coal seams during CH4 displacement through N2 and CO2 flooding

Meitian dizhi yu kantan
BackgroundCoal seams in China are generally characterized by low porosity (
Zefeng LI, Mengru HUANG, Hongzhong ZHANG, Jianping LAN, Jinsuo SONG, Shixing FAN   +5 more
doaj   +1 more source

Soil methane sink capacity response to a long-term wildfire chronosequence in Northern Sweden [PDF]

, 2015
Boreal forests occupy nearly one fifth of the terrestrial land surface and are recognised as globally important regulators of carbon (C) cycling and greenhouse gas emissions.
A Liptay, A Priemé, AJ Soja, Andy Stott, APS Adamsen, ASK Chan, C Knief, CJA Bradshaw, DA Wardle, DA Wardle, DA Wardle, DA Wardle, David A. Wardle, DS Reay, E Chuvieco, EA Holland, ES Kasischke, ES Kasischke, G Girardin, J. Colin Murrell, K Jaatinen, KA Smith, M Ohlson, MA Gathany, Md. Tanvir Rahman, N Pluchon, Niall P. McNamara, Nick J. Ostle, NP McNamara, PJ Maxfield, PSA Beck, R. Michael Lehman, RA Burke, Richard D. Bardgett, Ruth Gregg, S Sjögersten, SC Tyler, Simon Oakley, T Nakano, WS Reeburgh, Y-H Zhang, YA Teh, YA Trotsenko   +42 more
core   +3 more sources