Greenhouse gas emissions from soils—A review

Oertel, Cornelius; Matschullat, Jörg; Zurba, Kamal; Zimmermann, Frank; Erasmi, Stefan

doi:10.1016/j.chemer.2016.04.002

Cited by 859 publications

(624 citation statements)

References 298 publications

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“…and Thomson, 2010;Mander et al, 2008), although similar values have been reported in some dry forested wetlands of Europe and North America (Harms and Grimm, 2008;Oertel et al, 2016). These substantially high CO 2 emissions observed in Font del Regàs may be attributed to high microbial respiration rates associated with relatively moist and organicmatter-enriched soils (Mitsch and Gosselink, 2007;Pacific et al, 2008;Stern, 2006).…”

Section: Microbial Processes Regulating Ghg Emissionsmentioning

confidence: 67%

Soil water content drives spatiotemporal patterns of CO2 and N2O emissions from a Mediterranean riparian forest soil

et al. 2017

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Abstract. Riparian zones play a fundamental role in regulating the amount of carbon (C) and nitrogen (N) that is exported from catchments. However, C and N removal via soil gaseous pathways can influence local budgets of greenhouse gas (GHG) emissions and contribute to climate change. Over a year, we quantified soil effluxes of carbon dioxide (CO 2 ) and nitrous oxide (N 2 O) from a Mediterranean riparian forest in order to understand the role of these ecosystems on catchment GHG emissions. In addition, we evaluated the main soil microbial processes that produce GHG (mineralization, nitrification, and denitrification) and how changes in soil properties can modify the GHG production over time and space. Riparian soils emitted larger amounts of CO 2 (1.2-10 g C m −2 d −1 ) than N 2 O (0.001-0.2 mg N m −2 d −1 ) to the atmosphere attributed to high respiration and low denitrification rates. Both CO 2 and N 2 O emissions showed a marked (but antagonistic) spatial gradient as a result of variations in soil water content across the riparian zone. Deep groundwater tables fueled large soil CO 2 effluxes near the hillslope, while N 2 O emissions were higher in the wet zones adjacent to the stream channel. However, both CO 2 and N 2 O emissions peaked after spring rewetting events, when optimal conditions of soil water content, temperature, and N availability favor microbial respiration, nitrification, and denitrification. Overall, our results highlight the role of water availability on riparian soil biogeochemistry and GHG emissions and suggest that climate change alterations in hydrologic regimes can affect the microbial processes that produce GHG as well as the contribution of these systems to regional and global biogeochemical cycles.

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Section: Microbial Processes Regulating Ghg Emissionsmentioning

confidence: 67%

Soil water content drives spatiotemporal patterns of CO2 and N2O emissions from a Mediterranean riparian forest soil

et al. 2017

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“…The temperature of the soil surface, after triticale harvest, reached 35-40°C, while the value of soil heat flux, in some cases exceeded 60 W m -2 . This can lead to higher emissions and to higher soil respiration rates resulting from increased microbial metabolism (Oertel et al, 2016). At the same time, soil moisture was very low, and it only it surpassed 0.1 m 3 m -3 on July 29.…”

Section: Resultsmentioning

confidence: 97%

Emissions of carbon dioxide and methane from fields fertilized with digestate from an agricultural biogas plant

Czubaszek¹,

Wysocka-Czubaszek²

2018

International Agrophysics

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A b s t r a c t. Digestate from biogas plants can play important role in agriculture by providing nutrients, improving soil structure and reducing the use of mineral fertilizers. Still, less is known about greenhouse gas emissions from soil during and after digestate application. The aim of the study was to estimate the emissions of carbon dioxide (CO 2 ) and methane (CH 4 ) from a field which was fertilized with digestate. The gas fluxes were measured with the eddy covariance system. Each day, the eddy covariance system was installed in various places of the field, depending on the dominant wind direction, so that each time the results were obtained from an area where the digestate was distributed. The results showed the relatively low impact of the studied gases emissions on total greenhouse gas emissions from agriculture. Maximum values of the CO 2 and CH 4 fluxes, 79.62 and 3.049 µmol s -1 m -2

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“…Microbial growth and activities are strongly influenced by pH. The optimum pH-value for methanogens is more than four and less than seven [64]. The pH was as high as 9.72 in the 1-year-old paddy, reducing methanogenic archaea and methanotroph bacteria, thus lowering CH 4 and CO 2 production.…”

Section: Relationships Between Ghg Emissions and Tillage Yearmentioning

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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Greenhouse gas emissions from soils—A review

Cited by 859 publications

References 298 publications

Soil water content drives spatiotemporal patterns of CO<sub>2</sub> and N<sub>2</sub>O emissions from a Mediterranean riparian forest soil

Soil water content drives spatiotemporal patterns of CO<sub>2</sub> and N<sub>2</sub>O emissions from a Mediterranean riparian forest soil

Emissions of carbon dioxide and methane from fields fertilized with digestate from an agricultural biogas plant

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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Greenhouse gas emissions from soils—A review

Cited by 859 publications

References 298 publications

Soil water content drives spatiotemporal patterns of CO&lt;sub&gt;2&lt;/sub&gt; and N&lt;sub&gt;2&lt;/sub&gt;O emissions from a Mediterranean riparian forest soil

Soil water content drives spatiotemporal patterns of CO&lt;sub&gt;2&lt;/sub&gt; and N&lt;sub&gt;2&lt;/sub&gt;O emissions from a Mediterranean riparian forest soil

Emissions of carbon dioxide and methane from fields fertilized with digestate from an agricultural biogas plant

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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Soil water content drives spatiotemporal patterns of CO<sub>2</sub> and N<sub>2</sub>O emissions from a Mediterranean riparian forest soil

Soil water content drives spatiotemporal patterns of CO<sub>2</sub> and N<sub>2</sub>O emissions from a Mediterranean riparian forest soil