Results 61 to 70 of about 1,461 (167)
Eutrophication and ice phenology influence methane storage in north temperate lakes
Abstract Among lakes, eutrophication is positively related to methane emissions, but various processes can alter the seasonal conversion of primary production into stored methane. We used a series of whole‐lake enrichment and shading experiments across three years with varying ice phenology to assess how eutrophication and ice cover affect within‐year ...
Grace M. Wilkinson +8 more
wiley +1 more source
The (d)evolution of methanotrophy in the Beijerinckiaceae—a comparative genomics analysis [PDF]
Abstract The alphaproteobacterial family Beijerinckiaceae contains generalists that grow on a wide range of substrates, and specialists that grow only on methane and methanol. We investigated the evolution of this family by comparing the genomes of the generalist organotroph Beijerinckia indica, the facultative methanotroph Methylocella ...
Ivica, Tamas +3 more
openaire +2 more sources
Ecosystem‐Scale Methane Emissions From Peatlands of the Hudson Bay Lowlands
Abstract Northern peatlands are important sources of methane (CH4) in the atmosphere. However, the magnitude of CH4 emissions and their response to environmental factors are poorly constrained within the Hudson Bay Lowlands (HBL), the largest contiguous peatland complex in North America. This study investigated seasonal (April–November) eddy covariance‐
A. Bieniada, E. R. Humphreys
wiley +1 more source
Abstract Introduction Climate mitigation by peatland restoration is suggested, but data from restored forestry‐drained peatlands (FDP) is sparse. Studies using surrogate emission factors from pristine peatlands have indicated a long‐lasting warming effect of restoration of nutrient‐poor FDPs, while restoration‐specific studies are missing.
Teemu Tahvanainen
wiley +1 more source
Methane‐limited methanotrophy in tidal freshwater swamps [PDF]
We investigated the relationship between CH4 production and oxidation in two tidal freshwater wetland forests in order to determine whether CH4 oxidation efficiency was limited by O2 or CH4. Methane oxidation was measured in situ over a 16‐month period with bi‐monthly applications of the inhibitor CH3F.
J. Patrick Megonigal +1 more
openaire +1 more source
ABSTRACT Emissions from trees are an important component of the global methane (CH4) cycle, but their spatial origins (soil vs. in‐stem), transport pathways and environmental influences are not well constrained. To address these issues, this field study characterized spatial and temporal variability in stem emissions of biologically inert radon (222Rn),
Glory A. Iorliam +4 more
wiley +1 more source
Abstract Methane (CH4) production in lacustrine sediments is known to be spatially heterogeneous, varying both horizontally and vertically. Porewater methane concentrations often differ between locations within a lake and with depth within the sediment profile. The drivers of this heterogeneity are often not well understood.
Sigrid van Grinsven +10 more
wiley +1 more source
Abstract Rapid permafrost thaw in peatlands transforms the subarctic landscape into a mosaic of ponds and peat soil, varying in moisture, carbon and nutrients, and time since thaw. As subarctic permafrost degrades, ponds emerge and mature and can gradually infill with Sphagnum peat.
Melanie S. Burnett +6 more
wiley +1 more source
Advances in synthetic methanotrophy for sustainable C1 bioconversion
Published by Elsevier Science, Amsterdam [u.a.]
Tahiraj, Claudia +7 more
openaire +3 more sources
Hydrologic History Regulates Microbial Biofilm Diversity and Ecosystem Function
Hydrologic history regulates microbial biofilm diversity and ecosystem function. Historical flooding, but not drought, led to broad changes in composition and functional genes. ABSTRACT Aquatic biofilms are an understudied component of northern peatlands and are expected to play a more prominent role in ecosystem processes in areas where aquatic ...
Allison R. Rober +8 more
wiley +1 more source

