Nitrous oxide emissions from temperate grassland ecosystems in the Northern and Southern Hemispheres

Müller, Christoph; Sherlock, Robert R.

doi:10.1029/2003gb002175

Cited by 54 publications

(39 citation statements)

References 51 publications

(79 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nitrous oxide emissions are episodic, and high N 2 O fluxes can occur over a wide range of WFPS values, between 0.60 to 0.90 m 3 m -3 (Dobbie et al, 1999;Davidson et al, 2000;Müller and Sherlock, 2004). This makes it difficult to predict when high fluxes will occur.…”

Section: Discussionmentioning

confidence: 99%

Nitrous Oxide Fluxes and Soil Oxygen Dynamics of Soil Treated with Cow Urine

Owens

Clough

Laubach

et al. 2017

Soil Science Soc of Amer J

View full text Add to dashboard Cite

Abbreviations: CWC, cold water carbon; DOE, day of experiment; DI, deionized water; HWC, hot water carbon; GLM, general linear model; N 2 OR, nitrous oxide reductase; SWLR, structure-dependent water-induced linerar reduction model; WFPS, water-filled pore space. N itrous oxide is a potent greenhouse gas (GHG) that contributes to climate change, and it is projected to be the dominant ozone-depleting substance emitted in the 21st century (Ravishankara et al., 2009). Increases in atmospheric N 2 O concentrations are linked to N-based fertilizer inputs and excretal returns from grazing ruminant livestock to agricultural soils. High inputs of N from these sources can cause soil N concentrations to be greater than plant requirements. This excess soil N is available for microbial processes such as nitrification, denitrification, and nitrifier-denitrification, the latter two processes dominate the production of N 2 O (Wrage et al., 2001;Davidson, 2009;Kool et al., 2010;Zhu et al., 2013).Nitrous oxide is produced from denitrification and nitrifier-denitrification when soil O 2 is low (Goreau et al., 1980;Firestone and Davidson, 1989;Venterea, 2007;Zhu et al., 2013). Soil O 2 distribution in situ is variable (Butterbach-Bahl et al., 2013) as even soils considered aerobic can have anaerobic microsites where N 2 O production may occur (Robertson et al., 1989;Laughlin and Stevens, 2002; Core Ideas• Heavy irrigation, surface flooding, and urine decrease soil oxygen.• When soil oxygen decreases, N 2 O fluxes rapidly increase when nitrogen is available.• Nitrous oxide fluxes are explained well using relative soil gas diffusivity.

show abstract

Section: Discussionmentioning

confidence: 99%

Nitrous Oxide Fluxes and Soil Oxygen Dynamics of Soil Treated with Cow Urine

Owens

Clough

Laubach

et al. 2017

Soil Science Soc of Amer J

View full text Add to dashboard Cite

show abstract

“…In contrast, Gagnon et al (2011) measured a significantly higher N 2 O emission following application of urea ammonium nitrate or calcium ammonium nitrate compared with anhydrous ammonia in a poorly drained clay soil of Canada. In a German grassland ecosystem, Müller and Sherlock (2004) found that the emissions for an ammonium-based fertilizer were lower than those for a nitrate-based fertilizer. These researchers suggested that higher emissions from nitrate-based fertilizers were due to the propensity of the fine-textured clay soil to become anaerobic following rainfall and a strong fixation of NH + 4 in clay lattices reducing NH + 4 available for N 2 O production (Chantigny et al, 2004).…”

Section: Nitrous Oxide Emissions As Affected By Nitrogen Sourcesmentioning

confidence: 99%

Nitrous oxide emission and nitrogen use efficiency in response to nitrophosphate, N-(n-butyl) thiophosphoric triamide and dicyandiamide of a wheat cultivated soil under sub-humid monsoon conditions

Ding

Chen

et al. 2015

Biogeosciences

View full text Add to dashboard Cite

Abstract.A field experiment was designed to study the effects of nitrogen (N) source and urease inhibitor N-(nbutyl) thiophosphoric triamide (NBPT) or nitrification inhibitor dicyandiamide (DCD) on nitrous oxide (N 2 O) emission and N use efficiency (NUE) in a sandy loam soil. Six treatments including no N fertilizer (control), N fertilizer urea alone (U), urea plus NBPT (NBPT), urea plus DCD (DCD), urea plus NBPT and DCD (NBPT plus DCD) and nitrate-based fertilizer nitrophosphate (NP) were designed and implemented separately during the wheat growth period. Seasonal cumulative N 2 O emissions with urea alone amounted to 0.49 ± 0.12 kg N 2 O-N ha −1 and were significantly (P < 0.05) reduced to 0.28 ± 0.03, 0.31 ± 0.01 and 0.26 ± 0.01 kg N 2 O-N ha −1 by application of DCD, NBPT and NBPT plus DCD, respectively. Cumulative N 2 O emissions from NP were 0.28 ± 0.01 kg N 2 O-N ha −1 . A single N 2 O flux peak was identified following basal fertilization, and DCD and/or NBPT inhibition effects mainly occurred during the peak emission period. The NP application significantly (P < 0.05) increased wheat yield by 12.3 % and NUE from 28.8 % (urea alone) to 35.9 %, while urease and/or nitrification inhibitors showed a slight increase effect. Our results clearly indicated that the application of urea as basal fertilizer, but not as supplemental fertilizer, together with DCD and NBPT is an effective practice to reduce N 2 O emissions. The application of NP instead of urea would be an optimum agricultural strategy for reducing N 2 O emissions and increasing crop yield and NUE for wheat cultivation in soils of the North China Plain.

show abstract

“…Soil moisture and aeration: Soil moisture contents and aeration correlates to each other, change in moisture level adversely affect the soil air and denitrification rate. It is potentially increased when soil moisture contents reach above the field capacity (Müller and Sherlock, 2004;Saggar et al, 2009). However, denitrification losses are more pronounced in winter or early spring when soil moisture level is high.…”

Section: Denitrificationmentioning

confidence: 99%

Nitrogen Management in Calcareous Soils: Problems and Solutions

Maqsood¹,

Awan²,

Aziz³

et al. 2016

PAKJAS

View full text Add to dashboard Cite

Nitrogen (N) is the most widely applied plant nutrient and is a key constituent of animal manures. Improvement in crop yields and high economic returns have been made possible through supplementation of crops with organic and inorganic fertilizers. The movement of N in the environment has been extensively studied and documented. The fate of N ranges from nitrification, denitrification, nitrous oxide formation, leaching of nitrate, and volatilization of ammonia. Even with this knowledge the variation in N movement within the soil, air and water varies greatly with changed edaphic factors. For instance the fate of N fertilizer under calcareous soil systems still has not been investigated widely. We reviewed the sporadic information available on N fate and management in calcareous soils especially in Pakistan. We discussed the sources and fate of N in calcareous soils of Pakistan and also the currently adopted and newly developed method to reduce the N losses.

show abstract

Nitrous oxide emissions from temperate grassland ecosystems in the Northern and Southern Hemispheres

Cited by 54 publications

References 51 publications

Nitrous Oxide Fluxes and Soil Oxygen Dynamics of Soil Treated with Cow Urine

Nitrous Oxide Fluxes and Soil Oxygen Dynamics of Soil Treated with Cow Urine

Nitrous oxide emission and nitrogen use efficiency in response to nitrophosphate, N-(n-butyl) thiophosphoric triamide and dicyandiamide of a wheat cultivated soil under sub-humid monsoon conditions

Nitrogen Management in Calcareous Soils: Problems and Solutions

Contact Info

Product

Resources

About