Relationships between soil moisture content and nitrous oxide production during nitrification and denitrification

Klemedtsson, Leif; Svensson, Bo; Rosswall, T.

doi:10.1007/bf00257658

Cited by 100 publications

(89 citation statements)

References 25 publications

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“…An increase in N 2 O emission rates with increasing N fertilization has been observed both in laboratory and field studies (e.g., Skiba and Smith, 2000). Others reported a positive correlation between soil temperature and N 2 O emission rates (e.g., Smith et al, 1998), and between soil moisture and N 2 O emission rates (e.g., Klemedtsson et al, 1988). The contribution of nitrification to total N 2 O emission has been observed to increase with increasing ammonium concentrations and soil moisture (e.g., Müller et al, 1998), except under completely anaerobic conditions (Klemedtsson et al, 1988), and was observed to decrease at high temperatures (Avrahami et al, 2003).…”

mentioning

confidence: 85%

“…Others reported a positive correlation between soil temperature and N 2 O emission rates (e.g., Smith et al, 1998), and between soil moisture and N 2 O emission rates (e.g., Klemedtsson et al, 1988). The contribution of nitrification to total N 2 O emission has been observed to increase with increasing ammonium concentrations and soil moisture (e.g., Müller et al, 1998), except under completely anaerobic conditions (Klemedtsson et al, 1988), and was observed to decrease at high temperatures (Avrahami et al, 2003). Avrahami and Bohannan (2009) have observed a relationship between N 2 O emission rates and shifts in microbial community structure in response to environmental changes.…”

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confidence: 99%

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Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy

Dubowski

Harush

Shaviv

et al. 2014

Soil Science Society of America Journal

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A variety of pathways for N 2 O production are known, both biotic (autotrophic nitrification, heterotrophic nitrification, nitrifier-denitrification, denitrification, nitrate ammonification, aerobic denitrification) and abiotic (chemodenitrification) (Wrage et al., 2005). According to Baggs (2008), N 2 O production in soils is predominantly biological and can be mediated by ammonia oxidizers either during nitrification and/or during nitrifier-denitrification (Wrage et al., 2004a), or via nitrate reduction by denitrifiers (e.g., Master et al., 2004). Nitrification and nitrifier-denitrification are both performed by autotrophic ammonia-oxidizing bacteria. As a by-product of ammonia oxidation to NO 2 − , N 2 O can be produced in aerobic zones of soils. Nitrifier-denitrification is thought to occur when ammonia oxidizers are subject to oxygen deficiency and thus reduce the formed NO 2 − to N 2 O via NO. Denitrification occurs usually under anaerobic conditions through the sequential reduction of NO 3 − to NO 2 − , NO, N 2 O, and fi-

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mentioning

confidence: 85%

mentioning

confidence: 99%

Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy

Dubowski

Harush

Shaviv

et al. 2014

Soil Science Society of America Journal

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“…Similarly, Klemedtsson et al (1988) reported that at 60% water-holding capacity (WHC), soil N 2 O emissions were mostly from nitrification. Therefore, the high contribution of nitrification to N 2 O production in Andosol in the present study was because the soil was well aerated, and the results from the present experiment would be different if soil moisture was at a relatively higher WFPS (N 2 O emissions would be more dominated by denitrification derived-N 2 O) (Greenwood 1962).…”

Section: Nitrous Oxide Derived From Nitrification and Denitrificationmentioning

confidence: 99%

Contribution of nitrification and denitrification to nitrous oxide emissions in Andosol and from Fluvisol after coated urea application

Uchida

Rein

Akiyama

et al. 2013

Soil Science and Plant Nutrition

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Nitrogen (N) fertilizers applied on agricultural fields are an important source of nitrous oxide (N 2 O). The use of coated fertilizer is known to mitigate fertilizer derived N 2 O emissions; however, according to previous studies, the effectiveness of coated fertilizer as a mitigation option varies depending on the soil types. We hypothesized that this variability was due to the contribution of nitrification and denitrification to N 2 O emissions depending on the soil and fertilizer types. Two contrasting Japanese soils, Andosol and Fluvisol, were repacked in columns and treated with either urea or coated urea, and soil N 2 O emissions were monitored for 30 days at 55% water-filled pore space under laboratory conditions. Contribution of nitrification and denitrification to N 2 O emissions were determined for soils without fertilizer application and for soils at 7 and 28 days after urea or coated urea application, using a 15 N tracer technique. The results imply that >60% and >80% of N 2 O emissions in Andosol were derived from nitrification at 7 and 28 days after application, respectively, regardless of the fertilizer types used. In Fluvisol, nitrification-derived N 2 O contributed 59 AE 55% and 82 AE 8% of soil N 2 O emissions at 7 and 28 days after application, respectively, when coated urea was applied, whereas the domination of nitrification-derived N 2 O to soil N 2 O emissions was not observed when urea was applied to Fluvisol. Soil ammonium (NH þ 4 ) was depleted at 4 weeks after fertilizer application in Andosol, but was still available in Fluvisol at the same period, regardless of fertilizer types used. In Andosol, nitrification-derived N 2 O emissions increased when the NH þ 4 availability was high but this was not the case for Fluvisol, when urea was applied, and we believe that the response of nitrifying microbes to the amount of available NH þ 4 controls the differing trend of N 2 O emissions after the application of urea or of coated urea.

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“…Denitrification fluxes, which led to underestimated nitrification rates (see equations), might not be high in such a silty well-drained soil [44,52]. As temperature increased after harvest and soil moisture was high inside the cylinders, denitrification may have increased and may have led to the apparent decrease in net nitrification [18,45]. Dry deposition after the harvest was not calculated, and was supposed to be lower than before as interception by canopy was considerably reduced.…”

Section: Limits Of the In Situ Incubation Methodsmentioning

confidence: 99%

Effects of a clear-cut on the in situ nitrogen mineralisation and the nitrogen cycle in a 67-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation

et al. 2004

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-In situ net nitrogen mineralisation, deposition, uptake and leaching fluxes were determined in a 67-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation in the Beaujolais mountains. Measurements were performed during five years before the clear-cut of the stand and two years after the clear-cut. Deposition and mineralisation of N decreased after the harvest. The drastic decrease in tree N uptake was counteracted by the developing understorey vegetation. Microbial immobilisation, favoured by the input of organic matter and the increase in temperature, was probably the cause of a decrease in the net mineralisation of N. Leaching of mineral N at 15 cm depth decreased after the harvest. However, fluxes of Mg and Ca leached at 60 cm depth did not vary after the harvest.nitrogen cycle / clear-cut / Pseudotsuga menziesii / leaching / soil Résumé -Effet de la coupe à blanc d'une plantation de Douglas (Pseudotsuga menziesii (Mirb.) Franco) de 67 ans, sur la production in situ d'azote minéral et sur le cycle de l'azote. La minéralisation nette, les dépôts, l'absorption et le drainage d'azote ont été mesurés in situ dans une plantation de Douglas (Pseudotsuga menziesii (Mirb.) Franco) de 67 ans, située sur sol acide dans les monts du Beaujolais. Les mesures ont été effectuées pendant cinq ans avant la coupe à blanc du peuplement, puis pendant 2 ans après la coupe. Les dépôts d'azote atmosphérique et la minéralisation de l'azote diminuent après la récolte. La diminution du prélèvement d'azote par les racines est limitée par le développement de la végétation herbacée. L'immobilisation microbienne de l'azote, favorisée par les apports de matière organique et l'augmentation de la température, est supposée être la cause de cette diminution de la minéralisation nette. En conséquence, le drainage d'azote minéral à 15 cm de profondeur est réduit après la coupe. Toutefois, les flux de Mg et Ca dans les solutions gravitaires à 60 cm de profondeur ne sont pas modifiés après la coupe. cycle de l'azote / coupe à blanc / Pseudotsuga menziesii / drainage / sol

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Relationships between soil moisture content and nitrous oxide production during nitrification and denitrification

Cited by 100 publications

References 25 publications

Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy

Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy

Contribution of nitrification and denitrification to nitrous oxide emissions in Andosol and from Fluvisol after coated urea application

Effects of a clear-cut on the in situ nitrogen mineralisation and the nitrogen cycle in a 67-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation

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Relationships between soil moisture content and nitrous oxide production during nitrification and denitrification

Cited by 100 publications

References 25 publications

Real Time Monitoring of N2 O Emissions from Agricultural Soils using FTIR Spectroscopy

Real Time Monitoring of N2 O Emissions from Agricultural Soils using FTIR Spectroscopy

Contribution of nitrification and denitrification to nitrous oxide emissions in Andosol and from Fluvisol after coated urea application

Effects of a clear-cut on the in situ nitrogen mineralisation and the nitrogen cycle in a 67-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation

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Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy

Real Time Monitoring of N₂ O Emissions from Agricultural Soils using FTIR Spectroscopy