Global ammonia distribution derived from infrared satellite observations

Nature Geoscience, Journal Year: 2009, Volume and Issue: 2(7), P. 479 - 483

Published: June 21, 2009

Language: Английский

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Influence of biochars on flux of N2O and CO2 from Ferrosol

Soil Research, Journal Year: 2010, Volume and Issue: 48(7), P. 555 - 555

Published: Jan. 1, 2010

Biochars produced by slow pyrolysis of greenwaste (GW), poultry litter (PL), papermill waste (PS), and biosolids (BS) were shown to reduce N2O emissions from an acidic Ferrosol. Similar reductions observed for the untreated GW feedstock. Soil was amended with biochar or feedstock giving application rates 1 5%. Following initial incubation, nitrogen (N) added at 165 kg/ha as urea. Microcosms again incubated before being brought 100% water-filled porosity held this water content a further 47 days. The flooding phase accounted majority (<80%) total emissions. control soil released 3165 mg N2O-N/m2, 15.1% available N N2O. Amendment 5% significantly reduced 1470 636 respectively. This equivalent 8.6 3.8% applied N. 350°C least effective in reducing emissions, resulting 1625 1705 N2O-N/m2 amendments. BS had greatest impact, 518 2.2% over incubation period. Metabolic activity measured CO2 production could not explain differences between controls amendments, nor NH4+ NO3– concentrations biochar-amended soils. A decrease following is likely have been responsible amendment. Reduction soils attributed increased adsorption NO3–. Small are possible due improved aeration leading lower levels denitrification Alternatively, pH observed, which can drive through dinitrogen during flooding.

Language: Английский

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The potential of organic fertilizers and water management to reduce N2O emissions in Mediterranean climate cropping systems. A review

Agriculture Ecosystems & Environment, Journal Year: 2012, Volume and Issue: 164, P. 32 - 52

Published: Nov. 23, 2012

Language: Английский

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A Review of the Environmental Impacts of Biobased Materials

Journal of Industrial Ecology, Journal Year: 2012, Volume and Issue: 16(s1)

Published: April 1, 2012

Summary Concerns over climate change and the security of industrial feedstock supplies have been opening a growing market for biobased materials. This development, however, also presents challenge to scientists, policy makers, industry because production materials requires land is typically associated with adverse environmental effects. article addresses impacts in meta‐analysis 44 life cycle assessment (LCA) studies. The reviewed literature suggests that one metric ton (t) saves, relative conventional materials, 55 ± 34 gigajoules primary energy 3 1 t carbon dioxide equivalents greenhouse gases. However, may increase eutrophication by 5 7 kilograms (kg) phosphate equivalents/t stratospheric ozone depletion 1.9 1.8 kg nitrous oxide equivalents/t. Our findings are inconclusive regard acidification (savings 2 20 sulfur equivalents/t) photochemical formation 0.3 2.4 ethene equivalents/t). variability results studies highlights difficulties drawing general conclusions. Still, common most caused application fertilizers pesticides during biomass cultivation. Additional use impacts, such as potential loss biodiversity, soil depletion, erosion, deforestation, well gas emissions from indirect not quantified this review. Clearly these should be considered when evaluating performance

Language: Английский

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Irrigation, soil organic carbon and N2O emissions. A review

Agronomy for Sustainable Development, Journal Year: 2013, Volume and Issue: 33(4), P. 733 - 749

Published: Feb. 19, 2013

Language: Английский

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Effect of biochar amendment on the soil-atmosphere exchange of greenhouse gases from an intensive subtropical pasture in northern New South Wales, Australia

Plant and Soil, Journal Year: 2011, Volume and Issue: 345(1-2), P. 47 - 58

Published: March 8, 2011

Language: Английский

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Cover cropping affects soil N2O and CO2 emissions differently depending on type of irrigation

Agriculture Ecosystems & Environment, Journal Year: 2010, Volume and Issue: 137(3-4), P. 251 - 260

Published: March 25, 2010

Language: Английский

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Short-term effect of increasing nitrogen deposition on CO2, CH4 and N2O fluxes in an alpine meadow on the Qinghai-Tibetan Plateau, China

Atmospheric Environment, Journal Year: 2010, Volume and Issue: 44(24), P. 2920 - 2926

Published: May 13, 2010

Language: Английский

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Annual emissions of nitrous oxide and nitric oxide from a wheat–maize cropping system on a silt loam calcareous soil in the North China Plain

Soil Biology and Biochemistry, Journal Year: 2012, Volume and Issue: 48, P. 10 - 19

Published: Jan. 24, 2012

Language: Английский

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Impact of agricultural land use in Central Asia: a review

Agronomy for Sustainable Development, Journal Year: 2016, Volume and Issue: 36(1)

Published: Jan. 7, 2016

Language: Английский

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