Natural perturbations, drying–wetting and freezing–thawing cycles, and the emission of nitrous oxide, carbon dioxide and methane from farmed organic soils

Priemé, Anders; Christensen, Søren

doi:10.1016/s0038-0717(01)00140-7

Cited by 216 publications

(151 citation statements)

References 32 publications

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“…Similar with other studies (Laine et al 1996;Regina et al 1999;Prieme and Christensen 2001;Goldberg et al 2010), the drought in 2006 significantly enhanced N 2 O emissions because increased O 2 availability promoted nitrification in drier peat that increased N 2 O formation and produced NO 3 − as precursor of denitrification (Regina et al 1996). This high N 2 O emission in 2006 is also partly due to the accelerated degradation of accumulated organic maters (peat) in the fen when soil aeration increase during the drought (Gorham 1991;Prieme and Christensen 2001). During the drought-induced drainage in 2006, this fen was more available for grazing livestock which increased nitrogen input through dung and urine, resulting in an additional increase in N 2 O emissions (Cardenas et al 2007;Lin et al 2009;Hu et al 2010).…”

Section: Discussionsupporting

confidence: 92%

Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai–Tibetan Plateau: a 3-Year Study

Chen

Wang

et al. 2012

Water Air Soil Pollut

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Section: Discussionsupporting

confidence: 92%

Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai–Tibetan Plateau: a 3-Year Study

Chen

Wang

et al. 2012

Water Air Soil Pollut

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“…However, it has to be stressed that we most likely missed some freeze-thaw related N 2 O emission pulses earlier in the season, as it was clear that the soil had been already partly thawing before the measurement campaign started. These emissions could be even higher than those that were measured since the intensity of freeze-thaw induced N 2 O emission has been shown to decrease with time (Holst et al, 2008;Priemé and Christensen, 2001;Papen and Butterbach-Bahl, 1999).…”

Section: N 2 O Fluxesmentioning

confidence: 72%

Greenhouse gas fluxes in a drained peatland forest during spring frost-thaw event

et al. 2010

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Abstract. Fluxes of greenhouse gases (GHG) carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) were measured during a two month campaign at a drained peatland forest in Finland by the eddy covariance (EC) technique (CO 2 and N 2 O), and automatic and manual chambers (CO 2 , CH 4 and N 2 O). In addition, GHG concentrations and soil parameters (mineral nitrogen, temperature, moisture content) in the peat profile were measured. The aim of the measurement campaign was to quantify the GHG fluxes during freezing and thawing of the top-soil, a time period with potentially high GHG fluxes, and to compare different flux measurement methods. The forest was a net CO 2 sink during the two months and the fluxes of CO 2 dominated the GHG exchange. The peat soil was a small sink of atmospheric CH 4 and a small source of N 2 O. Both CH 4 oxidation and N 2 O production took place in the top-soil whereas CH 4 was produced in the deeper layers of the peat, which were unfrozen throughout the measurement period. During the frost-thaw events of the litter layer distinct peaks in CO 2 and N 2 O emissions were observed. The CO 2 peak followed tightly the increase in soil temperature, whereas the N 2 O peak occurred with a delay after the thawing of the litter layer. CH 4 fluxesCorrespondence to: M. K. Pihlatie (mari.pihlatie@helsinki.fi) did not respond to the thawing of the peat soil. The CO 2 and N 2 O emission peaks were not captured by the manual chambers and hence we conclude that high time-resolution measurements with automatic chambers or EC are necessary to quantify fluxes during peak emission periods. Subcanopy EC measurements and chamber-based fluxes of CO 2 and N 2 O were comparable, although the fluxes of N 2 O measured by EC were close to the detection limit of the system. We conclude that if fluxes are high enough, i.e. greater than 5-10 µg N m −2 h −1 , the EC method is a good alternative to measure N 2 O and CO 2 fluxes at ecosystem scale, thereby minimizing problems with chamber enclosures and spatial representativeness of the measurements.

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“…In winter time, the soil surface used to be frozen for the cold period and the produced trace gases are stored in the unfrozen subsoil (Müller et al 2002). For this reason the first thawing events results in high emission peaks for N 2 O (Priemé and Christensen, 2001;Müller et al 2002). In spring of 2007 N 2 O emission peak was missing as we expected because the mild winter (soil was not frozen) so the phenomenon mentioned above was not occurred.…”

Section: Modeled Soil Fluxesmentioning

confidence: 93%

Measurement and Modeling of N Balance Between Atmosphere and Biosphere over a Grazed Grassland (Bugacpuszta) in Hungary

Machon

Horváth

Weidinger

et al. 2015

Water Air Soil Pollut

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Article (refereed) -postprintMachon, Attila; Horváth, László; Weidinger, Tamás; Grosz, Balázs; Moring, Andrea; Führer, Ernő. 2015. Measurement and modeling of N balance between atmosphere and biosphere over a grazed grassland (Bugacpuszta) in Hungary. Water, Air, & Soil Pollution, 226 (3), 27. 19, pp. 10.1007/s11270-014-2271 Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner.

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Natural perturbations, drying–wetting and freezing–thawing cycles, and the emission of nitrous oxide, carbon dioxide and methane from farmed organic soils

Cited by 216 publications

References 32 publications

Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai–Tibetan Plateau: a 3-Year Study

Spatiotemporal Variations in Nitrous Oxide Emissions from an Open Fen on the Qinghai–Tibetan Plateau: a 3-Year Study

Greenhouse gas fluxes in a drained peatland forest during spring frost-thaw event

Measurement and Modeling of N Balance Between Atmosphere and Biosphere over a Grazed Grassland (Bugacpuszta) in Hungary

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