Greenhouse gas emissions from the enteric fermentation and manure storage of dairy and beef cattle in China during 1961–2010

Gao, Zhiling; Zhi, Lin; Yang, Yuanyuan; Ma, Wenqi; Liao, Wenhua; Li, Jianguo; Cao, Yufeng; Roelcke, Marco

doi:10.1016/j.envres.2014.08.033

Cited by 27 publications

(18 citation statements)

References 31 publications

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“…Asia 66.0 NA NA 83 100 [ 70 ] 18 0 [ 70 ] 0 0 [ 70 ] 0 0 [ 70 ] Oceania 78.0 90.0 [ 70 ] NA 84 95 [ 70 ] 1 0 [ 70 ] 16 5 [ 70 ] 0 0 [ 70 ] Latin America 78.0 NA NA 99 99 [ 73 ] 1 1 [ 73 ] 0 0 [ 73 ] 0 0 [ 73 ] E.–S.E. Asia 68.0 NA 10.0 d 56 66 [ 59 ] 38 25 [ 9 ] 4 0 [ 59 ] 2 9 [ 59 ] Africa 79.0 …”

Section: Methodsmentioning

confidence: 99%

“…Asia NA NA NA 78 86 [ 70 ] 23 14 [ 70 ] 0 0 [ 70 ] 0 0 [ 70 ] Oceania NA NA NA 100 100 [ 70 ] 0 0 [ 70 ] 0 0 [ 70 ] 0 0 [ 70 ] Latin America NA NA NA 100 100 g 0 0 g 0 0 g 0 0 g E.–S.E. Asia NA NA NA 100 98 [ 59 ] 0 0 [ 59 ] 0 0 [ 59 ] 0 2 [ 59 ] Africa NA NA NA 100 100 g 0 …”

Section: Methodsmentioning

confidence: 99%

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Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Wolf

Asrar

West

2017

Carbon Balance Manage

151

103

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BackgroundLivestock play an important role in carbon cycling through consumption of biomass and emissions of methane. Recent research suggests that existing bottom-up inventories of livestock methane emissions in the US, such as those made using 2006 IPCC Tier 1 livestock emissions factors, are too low. This may be due to outdated information used to develop these emissions factors. In this study, we update information for cattle and swine by region, based on reported recent changes in animal body mass, feed quality and quantity, milk productivity, and management of animals and manure. We then use this updated information to calculate new livestock methane emissions factors for enteric fermentation in cattle, and for manure management in cattle and swine.ResultsUsing the new emissions factors, we estimate global livestock emissions of 119.1 ± 18.2 Tg methane in 2011; this quantity is 11% greater than that obtained using the IPCC 2006 emissions factors, encompassing an 8.4% increase in enteric fermentation methane, a 36.7% increase in manure management methane, and notable variability among regions and sources. For example, revised manure management methane emissions for 2011 in the US increased by 71.8%. For years through 2013, we present (a) annual livestock methane emissions, (b) complete annual livestock carbon budgets, including carbon dioxide emissions, and (c) spatial distributions of livestock methane and other carbon fluxes, downscaled to 0.05 × 0.05 degree resolution.ConclusionsOur revised bottom-up estimates of global livestock methane emissions are comparable to recently reported top-down global estimates for recent years, and account for a significant part of the increase in annual methane emissions since 2007. Our results suggest that livestock methane emissions, while not the dominant overall source of global methane emissions, may be a major contributor to the observed annual emissions increases over the 2000s to 2010s. Differences at regional and local scales may help distinguish livestock methane emissions from those of other sectors in future top-down studies. The revised estimates allow improved reconciliation of top-down and bottom-up estimates of methane emissions, will facilitate the development and evaluation of Earth system models, and provide consistent regional and global Tier 1 estimates for environmental assessments.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Wolf

Asrar

West

2017

Carbon Balance Manage

151

103

View full text Add to dashboard Cite

show abstract

“…Ammonia emissions are a result of nitrogen excretion via urinary and fecal production. A number of equations have been developed to predict nitrogen excretion in beef cattle ( Waldrip et al, 2013 ), and it has been concluded that ammonia flux from beef cattle is related to many factors, including nitrogen intake, animal housing conditions, and manure storage facilities ( Todd et al, 2011 ; Gao et al, 2014 ). Less focus has been dedicated to the relationship of growth-promoting management strategies in reducing gas emissions and, in particular, ammonia emissions.…”

Section: Biological Response/effects Of Safe Use In Accordance With Regulatory Approval and Gvpsmentioning

confidence: 99%

Comparison of beta-ligands used in cattle production: structures, safety, and biological effects

Dilger

Johnson

Brent

et al. 2021

Journal of Animal Science

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Technologies that increase the efficiency and sustainability of food animal production to provide meat for a growing population are necessary and must be used in a manner consistent with good veterinary practices, approved labeled use, and environmental stewardship. Compounds that bind to beta-adrenergic receptors (β-AR), termed beta-adrenergic receptor ligands (β-ligands), are one such technology and have been in use globally for many years. Though all β-ligands share some similarities in structure and function, the significance of their structural and pharmacological differences is sometimes overlooked. Structural variations in these molecules can affect absorption, distribution, metabolism, and excretion as well as cause substantial differences in biological and metabolic effects. Several β-ligands are available for use specifically in cattle production. Ractopamine and zilpaterol are beta-adrenergic agonists approved to increase weight gain, feed efficiency, and carcass leanness in cattle. They both bind to and activate β1- and β2-AR. Lubabegron is a newly developed selective beta-adrenergic modulator with unique structural and functional features. Lubabegron displays antagonistic behavior at the β1- and β2-AR but agonistic behavior at the β3-AR. Lubabegron is approved for use in cattle to reduce ammonia emissions per unit of live or carcass weight. Additionally, lubabegron can withstand prolonged use as the β3-AR lacks structural features needed for desensitization. Due to these unique features of lubabegron, this new β-ligand provides an additional option in cattle production. The individual properties of each β-ligand should be considered when making risk management decisions, as unique properties result in varying human food safety profiles that can determine appropriate safe β-ligand use.

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“…In particular, nitrogen removal processes attracted particular attention in the last years since they can be responsible for nitrous oxide (N 2 O) production and emission into the atmosphere. N 2 O is a greenhouse gas with a high global warming potential (298 times higher than that of carbon dioxide (CO 2 )), whose anthropogenic emission , needs to be reduced . The N 2 O production in wastewater treatment plants (WWTP) occurs mainly during BNR.…”

Section: Introductionmentioning

confidence: 99%

Solids and Hydraulic Retention Time Effect on N₂O Emission from Moving‐Bed Membrane Bioreactors

et al. 2018

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Biological nutrient removal was operated at different solids (SRT) and hydraulic retention times (HRT) in order to assess their influence on nitrous oxide (N 2 O) emission from a hybrid moving-bed membrane bioreactor. The observed results show that the N 2 O production decreased when the SRT/HRT was decreased. The maximum N 2 O gaseous concentration was measured in the aerobic reactor at the end of phase I, and it decreased through phases II and III. From mass balances over the reactors of the system, the aerated (aerobic and membrane) reactors were the largest producers of N 2 O, showing that the greater part of N 2 O was produced during the nitrification process.

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Greenhouse gas emissions from the enteric fermentation and manure storage of dairy and beef cattle in China during 1961–2010

Cited by 27 publications

References 31 publications

Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Comparison of beta-ligands used in cattle production: structures, safety, and biological effects

Solids and Hydraulic Retention Time Effect on N₂O Emission from Moving‐Bed Membrane Bioreactors

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Greenhouse gas emissions from the enteric fermentation and manure storage of dairy and beef cattle in China during 1961–2010

Cited by 27 publications

References 31 publications

Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Revised methane emissions factors and spatially distributed annual carbon fluxes for global livestock

Comparison of beta-ligands used in cattle production: structures, safety, and biological effects

Solids and Hydraulic Retention Time Effect on N2O Emission from Moving‐Bed Membrane Bioreactors

Contact Info

Product

Resources

About

Solids and Hydraulic Retention Time Effect on N₂O Emission from Moving‐Bed Membrane Bioreactors