Results 41 to 50 of about 1,467 (169)

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Species‐level controls of foliar methane and nitrous oxide fluxes: roles of traits and microbes in temperate trees

New Phytologist, EarlyView.
Species‐level variation in temperate tree foliar greenhouse gas exchange, showing consistent foliar CH4 uptake, N2O emission, stronger CH4 uptake in fall leaves, and contrasting methanotroph communities between the high‐CH4‐oxidizing species Tilia americana and the low‐CH4‐oxidizing species Prunus virginiana. Summary The contribution of tree foliage to
Md Rezaul Karim, Sean C. Thomas
wiley   +1 more source

Seasonal dynamics of methane in the water column of two subtropical lakes differing in trophic status

Brazilian Journal of Biology
Alterations in methane concentration in the water column of aquatic systems is closely linked to the processes of production and consumption of this gas, i.e., methanogenesis and methanotrophy respectively. The aim of this research is to evaluate methane
CC. Marinho, C. Palma Silva, EF. Albertoni, CR. Trindade, FA. Esteves   +4 more
doaj   +1 more source

A Genome-Scale Metabolic Model for Methylococcus capsulatus (Bath) Suggests Reduced Efficiency Electron Transfer to the Particulate Methane Monooxygenase

Frontiers in Microbiology, 2018
Background: Genome-scale metabolic models allow researchers to calculate yields, to predict consumption and production rates, and to study the effect of genetic modifications in silico, without running resource-intensive experiments.
Christian Lieven, Leander A. H. Petersen, Leander A. H. Petersen, Sten Bay Jørgensen, Krist V. Gernaey, Markus J. Herrgard, Nikolaus Sonnenschein   +6 more
doaj   +1 more source

Microbial Activity in Subterranean Ecosystems: Recent Advances

Applied Sciences, 2020
Of the several critical challenges present in environmental microbiology today, one is the assessment of the contribution of microorganisms in the carbon cycle in the Earth-climate system.
Tamara Martin-Pozas, Jose Luis Gonzalez-Pimentel, Valme Jurado, Soledad Cuezva, Irene Dominguez-Moñino, Angel Fernandez-Cortes, Juan Carlos Cañaveras, Sergio Sanchez-Moral, Cesareo Saiz-Jimenez   +8 more
doaj   +1 more source

Key Drivers of Soil CO2, CH4, and N2O Fluxes in Conifer and Broadleaf Afforestation Systems in the Southeastern U.S.: A Machine Learning Analysis

Global Change Biology Communications, Volume 1, Issue 3, September 2026.
Soil CO2 and CH4 emissions were higher in broadleaf than conifer afforestation systems in the southeastern U.S., particularly during the growing season. Machine learning analyses identified soil temperature, moisture, and atmospheric conditions as key drivers, emphasizing that soil greenhouse gas responses critically influence the climate mitigation ...
Jianing Liang, Austin Himes, Cade Booth, Troy Bowman, Olivia Buchanan, Gregory Bushey, Grethel Capistran, Sidnee Everhart, Natalie Dearing, Shaik Hossain, Joshua Granger, Samantha Humphrey, Dawn Lemke, Mark McConnell, Adam Polinko, Rebecca Pope, Krishna Poudel, Logan Pruitt, Nasir Qadir, Heidi Renninger, Morné le Roux, Kris Shelby, Jeremy Whigham, Jia Yang, Courtney Siegert   +24 more
wiley   +1 more source

Methanotrophy below pH 1 by a new Verrucomicrobia species

Nature, 2007
Mud volcanoes, mudpots and fumaroles are remarkable geological features characterized by the emission of gas, water and/or semi-liquid mud matrices with significant methane fluxes to the atmosphere (10(-1) to 10(3) t y(-1)). Environmental conditions in these areas vary from ambient temperature and neutral pH to high temperatures and low pH.
POL A., HEIJMANS K., HARHANGI H., TEDESCO, Dario, JETTEN M., OP DEN CAMP H.   +5 more
openaire   +3 more sources

Root oxygen mitigates methane fluxes in tropical peatlands

Environmental Research Letters, 2020
Tropical peatlands are a globally important source of methane, a potent greenhouse gas. Vegetation is critical in regulating fluxes, providing a conduit for emissions and regular carbon inputs.
Nicholas T Girkin, Christopher H Vane, Benjamin L Turner, Nicholas J Ostle, Sofie Sjögersten   +4 more
doaj   +1 more source

Elevated Spring Methane Emissions in a Sub‐Arctic Peatland Fen

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract The Arctic boreal region is rapidly shifting in response to global climate change, including rapid warming and permafrost thaw. Year‐round monitoring of carbon fluxes in these regions is crucial to understanding seasonal and annual carbon budgets, including methane (CH4), a potent greenhouse gas with 80 times the warming potential of carbon ...
Marco N. Montemayor, Kyle A. Arndt, Patrick Murphy, Mario Tenuta, Susan M. Natali   +4 more
wiley   +1 more source

Viability of enhancing methanotrophy in terrestrial ecosystems exposed to low concentrations of methane

Communications Earth & Environment
Methane is a potent but relatively short-lived greenhouse gas, with anthropogenic and natural sources and rapidly increasing atmospheric concentrations.
Eric A. Davidson, Danielle R. Monteverde, Jeremy D. Semrau   +2 more
doaj   +1 more source