Results 21 to 30 of about 1,223,966 (289)

Quantification of methane oxidation in the rice rhizosphere using 13C-labelled methane [PDF]

open access: yes, 1994
In this paper isotope ratio mass spectrometry is used to determine the methane (CH4) oxidation fraction in the rhizosphere of intact rice plant-soil systems.
Harren, F.J.M.   +11 more
core   +3 more sources

Methane oxidation and emission in Lake Lugano (Southern Switzerland) : a lipid biomarker and isotopic approach [PDF]

open access: yes, 2015
Methane is an important greenhouse gas in Earth's atmosphere. The sources of atmospheric methane are largely biogenic, being produced under anoxic conditions by methanogenic Archaea.
Blees, Hendrik Jan Reynier
core   +1 more source

Simulating the effects of grassland management and grass ensiling on methane emission from lactating cows [PDF]

open access: yes, 2009
A dynamic, mechanistic model of enteric fermentation was used to investigate the effect of type and quality of grass forage, dry matter intake (DMI) and proportion of concentrates in dietary dry matter (DM) on variation in methane (CH(4)) emission from ...
Dijkstra, J.   +18 more
core   +1 more source

Rice genotypic variation in methane emission patterns under irrigated culture

open access: yesFundamental and Applied Agriculture, 2019
Anthropogenic emission of methane under anaerobic condition of irrigated rice fields, is a global concern contributing to global warming more than any other greenhouse gases.
M. Rafiqul Islam   +4 more
doaj   +1 more source

Estimasi Emisi Metana dari Fermentasi Enterik Terhadap Potensi Pemanasan Global pada Sektor Peternakan Sapi Perah di Kecamatan Lembang Kabupaten Bandung Barat

open access: yesJurnal Serambi Engineering, 2022
Lembang District is one of the sub-districts in West Bandung Regency with the largest population of dairy cattle in West Java. an increase in the population of dairy cows will cause an increase in emissions that cause global warming.
Ricky Fahrezy Ardiansyah   +1 more
doaj   +1 more source

Comparison of Sub-Ppm Instrument Response Suggests Higher Detection Limits Could Be Used to Quantify Methane Emissions from Oil and Gas Infrastructure

open access: yesSensors
Quantifying and controlling fugitive methane emissions from oil and gas facilities remains essential for addressing climate goals, but the costs associated with monitoring millions of production sites remain prohibitively expensive.
Stuart N. Riddick   +8 more
doaj   +1 more source

Avoiding methane emission rate underestimates when using the divergence method

open access: yesEnvironmental Research Letters, 2023
Methane is a powerful greenhouse gas, and a primary target for mitigating climate change in the short-term future due to its relatively short atmospheric lifetime and greater ability to trap heat in Earth’s atmosphere compared to carbon dioxide. Top-down
Clayton Roberts   +7 more
doaj   +1 more source

Addressing Low-Cost Methane Sensor Calibration Shortcomings with Machine Learning

open access: yesAtmosphere
Quantifying methane emissions is essential for meeting near-term climate goals and is typically carried out using methane concentrations measured downwind of the source.
Elijah Kiplimo   +5 more
doaj   +1 more source

Comparative Performance of Gaussian Plume and Backward Lagrangian Stochastic Models for Near-Field Methane Emission Estimation Using a Single Controlled Release Experiment

open access: yesAtmosphere
Methane (CH4) is a major component of natural gas and a potent greenhouse gas. Increasing atmospheric methane concentrations are attributed to emissive anthropogenic activities by an average of 13 ppb per yr since 2020 and are linked to a changing global
Aashish Upreti   +3 more
doaj   +1 more source

Predicting enteric methane emission in lactating Holsteins based on reference methane data collected by the GreenFeed system

open access: yesAnimal, 2022
Methane emission is not included in the current breeding goals for dairy cattle mainly due to the expense and difficulty in obtaining sufficient data to generate accurate estimates of the relevant traits.
R. Liu   +8 more
doaj   +1 more source

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