How do methane rates vary with soil moisture and compaction, N compound and rate, and dung addition in a tropical soil?

Cardoso, Abmael da Silva; Quintana, B.; Janusckiewicz, Estella Rosseto; Brito, Liziane de Figueiredo; Morgado, Eliane da Silva; Reis, Ricardo Andrade; Ruggieri, Ana Cláudia

doi:10.1007/s00484-018-1641-0

Cited by 17 publications

(25 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reasons for the absence of a correlation between N 2 O production and mineral N in this study are not clear, but presumably, N was not a limiting factor during the experimental period, which suggests that it was soil moisture that drove the fluxes. Methane fluxes from soil are driven by initial C and N concentrations, soil moisture, temperature, dissolved N and C, and mineral N concentration [53,60]. The results did not show a clear correlation between CH 4 fluxes and any soil variable (Figure 1).…”

Section: Greenhouse Gasesmentioning

confidence: 85%

“…Soil moisture supports biological activity [52,53] and can control CO 2 and N 2 O emissions. This control is probably due to changes in root biomass, microbial decomposition, and variations in substrate supply depending on soil moisture [54].…”

Section: Greenhouse Gasesmentioning

confidence: 99%

“…This control is probably due to changes in root biomass, microbial decomposition, and variations in substrate supply depending on soil moisture [54]. Indeed, GHG emissions in tropical grasslands are extremely affected by seasonal variations in the rainfall regime [13,53,55]. Soil moisture also controls O 2 diffusivity and, consequently, aerobic conditions.…”

Section: Greenhouse Gasesmentioning

confidence: 99%

See 2 more Smart Citations

Grazing Intensity Impacts on Herbage Mass, Sward Structure, Greenhouse Gas Emissions, and Animal Performance: Analysis of Brachiaria Pastureland

et al. 2020

Self Cite

View full text Add to dashboard Cite

A 7 year experiment (2008–2014) evaluated cattle grazing intensity (sward height) effects on herbage mass, forage quality, and greenhouse gas emissions in continuously stocked pastures containing the tropical ‘Marandu’ palisade grass (Brachiaria brizantha (Hochst. ex A. Rich) Stapf cv. Marandu). The experiment consisted of three sward height treatments (15, 25, and 35 cm) and six replicates. There were four periods each year during the rearing phase. Significant effects were found for herbage mass, proportions of leaf and stem, crude protein, neutral detergent fiber, acid detergent fiber, lignin, animal performance, enteric methane (CH4), and greenhouse gas (GHG) emissions from soils. When the canopy height increased from 15 to 35 cm, the herbage mass rose from 5.23 to 9.86 kg t ha−1, leaf percentage decreased, and stem percentage increased. Crude protein content averaged 14.2%, and neutral detergent fiber averaged 58%. Average daily gain averaged 0.67, 0.81, and 0.90 kg −1 head−1, while live weight gain ha–1 was 649, 530, and 439 kg for the 15, 25, and 35 cm treatments, respectively. The weather variables explained the GHG emissions, interannual herbage mass, and structure variations.

show abstract

Section: Greenhouse Gasesmentioning

confidence: 85%

Section: Greenhouse Gasesmentioning

confidence: 99%

Section: Greenhouse Gasesmentioning

confidence: 99%

See 1 more Smart Citation

Grazing Intensity Impacts on Herbage Mass, Sward Structure, Greenhouse Gas Emissions, and Animal Performance: Analysis of Brachiaria Pastureland

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Well-aired grassland sites are CH 4 sinks, while areas susceptible to inundation are sources. Another important source of CH 4 is animal feces (Cardoso et al, 2019b;Mazzetto et al, 2014;Saggar, Bolan, Bhandral, Hedley, & Luo, 2004). Previous studies on the effect of N fertilization on CH 4 production or consumption have been inconclusive.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies on the effect of N fertilization on CH 4 production or consumption have been inconclusive. Some studies have shown that N addition increases CH 4 emissions (Bodelier & Laanbroek, 2004;Mori & Hojito, 2015), stimulates CH 4 oxidation (Cardoso et al, 2019a(Cardoso et al, , 2019bZanatta, Bayer, Vieira, Gomes, & Tomazi, 2010), or has no effect (Tate et al, 2007;Yue et al, 2016). The effect of N on CH 4 emissions is probably confounded by or differs according to soil temperature and water content.…”

Section: Introductionmentioning

confidence: 99%

Greenhouse gases emissions from tropical grasslands affected by nitrogen fertilizer management

et al. 2020

Self Cite

View full text Add to dashboard Cite

Greenhouse gases (GHGs) emissions from livestock systems are important because of their significant contribution to global warming. Nitrogen fertilization can improve system production; however, it alters soil gas emissions. We evaluated soil nitrous oxide (N 2 O), methane (CH 4), and carbon dioxide (CO 2) emissions to investigate how they are affected by increasing levels of N fertilizer (urea) in a productive Marandu grass [Urochloa brizantha (Hochst ex A. Rich) Stapf] pasture subjected to continuous grazing by young Nellore beef cattle (Bos indicus). The N 2 O, CH 4, and CO 2 emissions were significantly affected by increasing N fertilizer levels. The seasons also affected GHGs emissions. Nitrogen fertilizer favored CH 4 consumption relative to the control plot without N, with mean emission of 23.7 μg CH 4 −C m −2 h −1 in the fertilized plots compared to 61.6 μg CH 4 −C m −2 h −1 in the control. The N-fertilized areas presented higher CO 2 emissions compared to the control plot without N. The areas that received N fertilization showed a positive linear association between the water-filled pore space and N 2 O emission. Soil temperature drove CO 2 emissions. Increasing N fertilization in grazed marandu grass increases N 2 O and CO 2 emissions during the growing season, while reducing CH 4. The effect of fertilization during the transition season was not apparent, and perhaps other factors could provide a better explanation for the GHG emissions during this period.

show abstract

Ammonia, nitrous oxide and methane emissions from excreta of cattle receiving rumen undegradable protein

et al. 2022

Self Cite

View full text Add to dashboard Cite

We hypothesized that supplementation with rumen undegradable protein (RUP) during the rearing phase mitigates nitrous oxide (N 2 O), methane (CH 4 ), and ammonia (NH 3 ) emissions from excreta of Nellore animals in Urochloa brizantha 'Xaraés' pasture. The treatments applied to soil were urine and dung of animals supplemented without RUP or with RUP in the middle and end of the rearing phase. We assessed N 2 O and CH 4 emissions using a static closed chamber and NH 3 emissions using the semi-open static chamber method. No effects were observed for supplement, excreta type, period, or interaction on N 2 O emissions. The mean emission factor was 0.03% of N in the excreta lost as N 2 O. Higher NH 3 losses were observed for the urine treatments in the end period, regardless of the supplement type. The mean NH 3 emission factor for urine was 2.96 and 13.8% for the middle and end periods, respectively, while the mean value for dung was 3.9%. The type of supplement did not affect CH 4 emissions, and the mean dung emission factor was 0.12 kg CH 4 head -1 year -1 . In summary, the supplementation of beef cattle in pastures with RUP did not mitigate NH 3 , N 2 O, and CH 4 emissions from excreta. The excreta emission factors for the GHGs measured, regardless of differences in the type of excreta, type of supplement, and period, were lower than the default value of Intergovernmental Panel on Climate Change revised guidelines. Further studies will be needed to fully understand the mechanisms underlying the effects of RUP on greenhouse gas emissions.

show abstract

How do methane rates vary with soil moisture and compaction, N compound and rate, and dung addition in a tropical soil?

Cited by 17 publications

References 39 publications

Grazing Intensity Impacts on Herbage Mass, Sward Structure, Greenhouse Gas Emissions, and Animal Performance: Analysis of Brachiaria Pastureland

Grazing Intensity Impacts on Herbage Mass, Sward Structure, Greenhouse Gas Emissions, and Animal Performance: Analysis of Brachiaria Pastureland

Greenhouse gases emissions from tropical grasslands affected by nitrogen fertilizer management

Ammonia, nitrous oxide and methane emissions from excreta of cattle receiving rumen undegradable protein

Contact Info

Product

Resources

About