Methanogenesis and Methanotrophy in Soil: A Review

Serrano-Silva, Nancy; Sarria-Guzmán, Yohanna; Dendooven, Luc; Luna‐Guido, Marco

doi:10.1016/s1002-0160(14)60016-3

Cited by 251 publications

(147 citation statements)

References 142 publications

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“…Higher emissions methane emissions in soils with moisture higher than 40% is a phenomenon consistent with higher methanogenesis and lower diffusion of O 2 and subsequent methanotrophy in those soils (Dalal et al, 2008;Serrano-Silva et al, 2014). As for the previously described pathways, diffusive emissions from the drawdown area were also higher during the WD season, here a consequence of the highest extent of the drawdown area during that season.…”

Section: Drawdown Area Emissionssupporting

confidence: 78%

Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways

et al. 2016

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-Hydro-reservoirs are recognized as potentially significant emitters of methane at the global scale. However, there are still large uncertainties in estimating such emissions at this scale due to the lack of comprehensive measurements of methane emissions in a wide range of climatic zones, for hydro-reservoirs with variable characteristics, and including all emissions pathways. This study presents an assessment of methane emissions for the 2013 year, that is four years after commissioning, for the Nam Theun 2 hydro-system, a 489 km² subtropical reservoir with a large drawdown area. All of the major pathways have been computed here, i.e., ebullition, diffusion, degassing, emissions from the drawdown area, and diffusion from downstream, and included in an emission budget. Emissions from the upstream area strongly dominate when compared to the downstream ones, a feature quite specific to the Nam Theun 2 reservoir. The drawdown area and the emissions by diffusion downstream represented a small contribution to the total emissions. About half of the methane is emitted during the four months of the warm dry season (from mid-February to Mid-June). Total methane emissions in NT2 have decreased from 35.6±2.6 Gg(CH 4 ) year -1 in 2010 to 24.5±1.5 Gg(CH 4 ) year -1 in 2013 though this difference was not found to be quite statistically significant.

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Section: Drawdown Area Emissionssupporting

confidence: 78%

Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways

et al. 2016

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“…Conversely, wetland zones of the native prairie catchments consistently exhibited some of the highest CH 4 fluxes. Wetland zone WFPS was similar among land uses, excluding drained cropland catchments, so these relatively high fluxes likely were associated with other factors such as, microbial and plant communities, available organic carbon, water table elevation, pH, and soils (Segers, 1998;Le mer and Roger, 2001;Whalen, 2005;Kayranli et al, 2010;Laanbroek, 2010;Bridgham et al, 2013;Serrano-Silva et al, 2014).…”

Section: Land Use Effectsmentioning

confidence: 99%

“…These abiotic and biotic factors are linked to weather and climate, groundwater interactions (e.g., recharge, discharge), and geomorphology, and can vary by landscape positions which span the wetland to upland transitional gradient. Land use also can have considerable effects on these factors (Euliss and Mushet, 1996;Gleason and Euliss, 1998;van der kamp et al, 2003;Gleason et al, 2009;Liu and Greaver, 2009;Kumar et al, 2014;Serrano-Silva et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effects of land use on greenhouse gas fluxes and soil properties of wetland catchments in the Prairie Pothole Region of North America

Tangen

Finocchiaro

Gleason

2015

Science of The Total Environment

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“…CO 2 , which serves as the major greenhouse gas contributor, supplies 60% of the greenhouse effect from humans, CH 4 and N 2 O contribute 15% and 5%, respectively [5]. In the global warming potential for the one hundred year horizon in terrestrial ecosystems, the contribution of CH 4 and N 2 O is 25 and 298 times larger than CO 2 respectively [6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Irrigation Regime and Nitrogen Fertilizer Management on CH4, N2O and CO2 Emissions from Saline–Alkaline Paddy Fields in Northeast China

Tang

Wang

et al. 2018

Sustainability

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Irrigation regime and fertilizer nitrogen (N) are considered as the most effective agricultural management systems to mitigate greenhouse gas (GHG) emissions from crop fields, but few studies have involved saline-alkaline paddy soil. Gas emitted from saline-alkaline paddy fields (1-year-old and 57-year-old) was collected during rice growing seasons by the closed chamber method. Compared to continuous flooding irrigation, lower average CH 4 flux (by 22.81% and 23.62%), but higher CO 2 flux (by 24.84% and 32.39%) was observed from intermittent irrigation fields. No significant differences of N 2 O flux were detected. Application rates of N fertilizer were as follows: (1) No N (N0); (2) 60 kg ha −1 (N60); (3) 150 kg ha −1 (N150); and (4) 250 kg ha −1 (N250). The cumulative emissions of GHG and N fertilizer additions have positive correlation, and the largest emission was detected at the rate of 250 kg N ha −1 (N250). Global warming potential (GWP, CH 4 + N 2 O + CO 2 ) of the 57-year-old field under the N250 treatment was up to 4549 ± 296 g CO 2 -eq m −2 , approximately 1.5-fold that of N0 (no N application). In summary, the results suggest that intermittent irrigation would be a better regime to weaken the combined GWP of CH 4 and N 2 O, but N fertilizer contributed positively to the GWP.

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Methanogenesis and Methanotrophy in Soil: A Review

Cited by 251 publications

References 142 publications

Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways

Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways

Effects of land use on greenhouse gas fluxes and soil properties of wetland catchments in the Prairie Pothole Region of North America

Effects of Irrigation Regime and Nitrogen Fertilizer Management on CH4, N2O and CO2 Emissions from Saline–Alkaline Paddy Fields in Northeast China

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