Results 41 to 50 of about 2,576,186 (345)

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

Animal, 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, D. Hailemariam, T. Yang, F. Miglior, F. Schenkel, Z. Wang, P. Stothard, S. Zhang, G. Plastow   +8 more
doaj   +1 more source

Temporal Variation of Ecosystem Scale Methane Emission From a Boreal Fen in Relation to Temperature, Water Table Position, and Carbon Dioxide Fluxes

Global Biogeochemical Cycles, 2018
We have analyzed decade‐long methane flux data set from a boreal fen, Siikaneva, together with data on environmental parameters and carbon dioxide exchange. The methane flux showed seasonal cycle but no systematic diel cycle.
J. Rinne, E. Tuittila, Olli Peltola, Xuefei Li, M. Raivonen, P. Alekseychik, S. Haapanala, M. Pihlatie, M. Aurela, I. Mammarella, T. Vesala   +10 more
semanticscholar   +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

Sensors
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, Mercy Mbua, Ryan Brouwer, Ethan W. Emerson, Abhinav Anand, Elijah Kiplimo, Seunfunmi Ojomu, Jui-Hsiang Lo, Daniel J. Zimmerle   +8 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

Jurnal 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, Didin Agustian Permadi   +1 more
doaj   +1 more source

Estimation of the methane emission factor for the Italian Mediterranean buffalo [PDF]

, 2008
In order to contribute to the improvement of the national greenhouse gas emission inventory, this work aimed at estimating a country-specific enteric methane (CH4) emission factor for the Italian Mediterranean buffalo.
CÓNDOR R. D., DE LAURETIS R., DE ROSA, GIUSEPPE, DI FRANCIA, ANTONIO, VALLI L.   +4 more
core   +1 more source

Rumen methanogens and mitigation of methane emission by anti-methanogenic compounds and substances

Journal of Animal Science and Biotechnology, 2017
Methanogenic archaea reside primarily in the rumen and the lower segments of the intestines of ruminants, where they utilize the reducing equivalents derived from rumen fermentation to reduce carbon dioxide, formic acid, or methylamines to methane (CH4).
A. Patra, T. Park, Minseok Kim, Zhongtang Yu   +3 more
semanticscholar   +1 more source

Addressing Low-Cost Methane Sensor Calibration Shortcomings with Machine Learning

Atmosphere
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, Stuart N. Riddick, Mercy Mbua, Aashish Upreti, Abhinav Anand, Daniel J. Zimmerle   +5 more
doaj   +1 more source

Livestock methane emissions in the United States [PDF]

Proceedings of the National Academy of Sciences, 2014
The recent study by Miller et al. (1) provides a comprehensive, quantitative analysis of anthropogenic methane sources in the United States using atmospheric methane observations, spatial datasets, and a high-resolution atmospheric transport model.
Hristov, Alexander N, Johnson, Kristen A, Kebreab, Ermias   +2 more
openaire   +4 more sources

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

Atmosphere
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, Kira B. Shonkwiler, Stuart N. Riddick, Daniel J. Zimmerle   +3 more
doaj   +1 more source

DPSR-based study and assessment of the influence pathways of Shanghai urban development level on river methane emission potential during 2011–2020

Ecological Indicators, 2023
Numerous studies have shown that urban rivers are becoming a source of methane emissions, which poses a challenge to developing a “net zero carbon city.” Most studies at this stage focus on the influence of single urban elements on river methane ...
Ziqi Zhang, Zhinan Xu, Leyi Li, Xiangrong Wang   +3 more
doaj   +1 more source