搜索结果: 1-15 共查到“理学 Nitrous oxide”相关记录27条 . 查询时间(0.078 秒)
Nitrous oxide emission from riparian buffers in agricultural landscapes of Indiana
Nitrous oxide riparian agriculture denitrification
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2015/1/16
Riparian buffers have well documented capacity to remove nitrate (NO3-) from runoff and subsurface flow paths, but information on field-scale N2O emission from these buffers is lacking. This study mon...
No laughing matter: Nitrous oxide rose at end of last ice age
No laughing matter Nitrous oxide end of last ice age
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2014/12/30
CORVALLIS, Ore. – Nitrous oxide (N2O) is an important greenhouse gas that doesn’t receive as much notoriety as carbon dioxide or methane, but a new study confirms that atmospheric levels of N2O rose s...
Denitrification alternates between a source and sink of nitrous oxide in the hypolimnion of a thermally stratified reservoir
Denitrification alternates sink of nitrous oxide
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2014/4/2
Nitrogen loading from developed watersheds to aquatic ecosystems can stimulate microbial denitrification, a
process that reduces nitrate (NO{
3
) to dinitrogen (N2) or nitrous oxide (N2O), the latt...
Microbial dinitrogen and nitrous oxide production in a small eutrophic reservoir: An in situ approach to quantifying hypolimnetic process rates
Microbial dinitrogen and nitrous oxide production a small eutrophic reservoir An in situ approach to quantifying hypolimnetic process rates
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2014/4/8
Nitrogen (N) dynamics within the hypolimnion of a thermally stratified reservoir were examined to test an in situ approach to measuring dinitrogen (N2) and nitrous oxide (N2O) production rates wherein...
UV absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) between 210 and 350 K and the atmospheric implications
UV absorption nitrous oxide (N2O) carbon tetrachloride (CCl4) the atmospheric implications
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2010/8/16
Absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) are reported at five atomic UV lines (184.95, 202.548, 206.200, 213.857, and 228.8 nm) at temperatures in the range 210...
Control of nitrous oxide emission from Chironomus plumosus larvae by nitrate and temperature
nitrate temperature nitrous oxide emission
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2014/4/16
Aquatic invertebrates that ingest large numbers of bacteria produce substantial amounts of the greenhouse gas
N2O because of incomplete denitrification in their anoxic gut. We investigated the influe...
Methane and nitrous oxide emissions in The Netherlands: ambient measurements support the national inventories
Methane and nitrous oxide emissions Netherlands national inventories
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2009/12/31
We present net emission estimates of CH4 and N2O of The Netherlands based on measurements conducted during the period of May 2006 to April 2009 at station Lutjewad, The Netherlands (6°21' E, 53°24' ...
Equatorial transport as diagnosed from nitrous oxide variability
Equatorial transport nitrous oxide variability
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2009/11/19
The mechanisms of transport on annual, semi-annual and quasi-biennial time scales in the equatorial (10° S–10° N) stratosphere are investigated using the nitrous oxide (N2O) measurements of the space-...
Nitrous oxide production in boreal soils with variable organic matter content at low temperature – snow manipulation experiment
Nitrous oxide production boreal soils organic matter content low temperature
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2010/1/21
Agricultural soils are the most important sources for the greenhouse gas nitrous oxide (N2O), which is produced and emitted from soils also at low temperatures. The processes behind emissions at low t...
NITROUS OXIDE FLUXES FROM A CLAYPAN SOIL OVERLYING NITRATE-ENRICHED GLACIAL DRIFT
nitrous oxide glacial-drift aquifer claypan soil
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2009/10/19
The closed chamber method was used to assess nitrous oxide (N2O) fluxes from corn (Zea mays, L.) fields during the 1995 growing season. The study area was characterized by a claypan soil overlying a n...
Equatorial total column of nitrous oxide as measured by IASI on MetOp-A: implications for transport processes
Equatorial total column nitrous oxide IASI MetOp-A
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2009/6/22
In this paper we use the total columns of nitrous oxide (N2O) as retrieved from the radiance spectra as measured by the Infrared Atmospheric Sounding Interferometer (IASI) instrument aboard the MetOp-...
Comparison of CMAM simulations of carbon monoxide（CO）, nitrous oxide（N2）, and methane（CH4）with observations from Odin/SMR, ACE-FTS, and Aura/MLS
CMAM simulations carbon monoxide nitrous oxide CH4 ACE-FTS Aura/MLS
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2009/6/2
Simulations of CO, N2O and CH4 from a coupled chemistry-climate model (CMAM) are compared with satellite measurements from Odin Sub-Millimeter Radiometer (Odin/SMR), Atmospheric Chemistry Experiment F...
Denitrification and nitrous oxide cycling within the upper oxycline of the eastern tropical South Pacific oxygen minimum zone
Denitrification nitrous oxide cycling
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2014/4/17
One of the shallowest, most intense oxygen minimum zones (OMZs) is found in the eastern tropical South
Pacific, off northern Chile and southern Peru. It has a strong oxygen gradient (upper oxycline) ...
Nitrous oxide emission from a range of land uses across Europe
nitrous oxide soil water content inorganic N soil temperature
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2009/3/17
The results of a literature study examining quantitative estimates of N2O emission rates are presented for a range of land-uses across Europe. The analysis shows that the highest N2O emission rates ar...
Validation of version-4.61 methane and nitrous oxide observed by MIPAS
version-4.61 methane nitrous oxide MIPAS
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2009/3/12
The ENVISAT validation programme for the atmospheric instruments MIPAS, SCIAMACHY and GOMOS is based on a number of balloon-borne, aircraft, satellite and ground-based correlative measurements. In par...