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Irrigation of DOC-rich liquid promotes potential denitrification rate and decreases N₂O/(N₂O+N₂) product ratio in a 0–2 m soil profile
(Elsevier, 2017-03)
Lack of dissolved organic carbon (DOC) is generally one of the key factors limiting denitrification in subsoil beneath the root zone. Despite a number of laboratory DOC amendment studies, the effects of in situ DOC ...
Co-application of a biochar and an electric potential accelerates soil nitrate removal while decreasing N₂O emission
(Elsevier, 2020-08-12)
Denitrification is an important mechanism for mitigating groundwater nitrate (NO3−) pollution. Our previous results showed that electric potential application (−0.5 V versus standard hydrogen electrode) accelerated subsoil ...
Abiotic processes dominate CO₂ fluxes in Antarctic soils
(Elsevier, 2012-10)
Ecosystems within the McMurdo Dry Valleys of Antarctica are highly sensitive to environmental change. Increases in soil temperature and/or moisture content may dramatically change rates of soil respiration and soil carbon ...
Flooding-induced N₂O emission bursts controlled by pH and nitrate in agricultural soils
(Elseiver, 2014-02)
Agricultural soils are a major source of the greenhouse gas nitrous oxide (N₂O) to the atmosphere. Increasing frequency and severity of flooding as predicted for large intensively cropped areas may promote temporary ...
Reply to Elberling et al.'s (2013) comments on "Abiotic processes dominate CO₂ fluxes in Antarctic soils" (Soil Biol. Biochem. 53, 99-111)
(Elsevier, 2014-08)
A Letter to the Editor in response to an article B. Elberling, L.G. Greenfield, E.G. Gregorich, D.W. Hopkins, P. Novis, A.D. Sparrow
Comments on “Abiotic processes dominate CO₂ fluxes in Antarctic soils” by Shanhun et al. ...
Advances in understanding nitrogen flows and transformations: Gaps and research pathways
(Cambridge Journals, 2014)
The nitrogen (N) cycle is one of the best studied elemental cycles. However, the N flows and transformations, in particular in aggregated soils, at small scales and in plant-soil systems are not yet fully understood. ...
Fertiliser and seasonal urine effects on N₂O emissions from the urine-fertiliser interface of a grazed pasture
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2015)
Significant areas of ruminant-grazed pastures are simultaneously covered by excreted urine and fertiliser nitrogen (N). However, the effect of overlapping N inputs on nitrous oxide (N₂O) emission factors has not been ...
Nitrification gene ratio and free ammonia explain nitrite and nitrous oxide production in urea-amended soils
(Elsevier Ltd., 2017-08)
The atmospheric concentration of nitrous oxide (N₂O), a potent greenhouse gas and ozone-depleting chemical, continues to increase, due largely to the application of nitrogen (N) fertilizers. While nitrite (NO₂⁻) is a central ...
A wood based low-temperature biochar captures NH₃⁻N generated from ruminant urine-N, retaining its bioavailability
(Springer Netherlands on behalf of the Royal Netherlands Society of Agricultural Science, 2012-04)
Aims: Ammonia (NH₃) can be volatilised from the soil surface following the surface application of nitrogenous fertilisers or ruminant urine deposition. The volatilisation of NH₃ is of agronomic and environmental concern, ...
Biochar adsorbed ammonia is bioavailable
(Springer Netherlands, under the auspices of the Royal Netherlands Society of Agricultural Science, 2012-01)
Biochar is produced as a by-product of the low temperature pyrolysis of biomass during bioenergy extraction and its incorporation into soil is of global interest as a potential carbon sequestration tool. Biochar influences ...