搜索结果: 1-13 共查到“地球科学总论 N2O”相关记录13条 . 查询时间(0.181 秒)
Chemolithoautotrophic production mediating the cycling of the greenhouse gases N2O and CH4 in an upwelling ecosystem
Chemolithoautotrophic production the greenhouse gases N2O and CH4 an upwelling ecosystem
2010/1/21
The high availability of electron donors occurring in coastal upwelling ecosystems with marked oxyclines favours chemoautotrophy, in turn leading to high N2O and CH4 cycling associated with aerobic NH...
A single gas chromatograph for accurate atmospheric mixing ratio measurements of CO2,CH4,N2O,SF6 and CO
gas chromatograph atmospheric mixing ratio measurements CO2 CH4 N2O SF6 CO
2010/2/8
We present an adapted gas chromatograph capable of measuring simultaneously and semi-continuously the atmospheric mixing ratios of the greenhouse gases CO2, CH4, N2O and SF6 and the trace gas CO with ...
MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature,O3,HNO3,N2O,H2O and relative humidity over ice:retrievals and comparison to MLS
MIPAS reduced spectral resolution UTLS-1 mode measurements temperature O3 HNO3 N2O H2O MLS
2010/2/8
During several periods since 2005 the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat has performed observations dedicated to the region of the upper troposphere/lower str...
Retrieval of temperature,H2O,O3,HNO3,CH4,N2O,ClONO2 and ClO from MIPAS reduced resolution nominal mode limb emission measurements
Retrieval temperature H2O O3 HNO3 CH4 N2O ClONO2 ClO MIPAS reduced resolution
2010/2/8
Retrievals of temperature, H2O, O3, HNO3, CH4, N2O, ClONO2 and ClO from MIPAS reduced spectral resolution nominal mode limb emission measurements outperform retrievals from respective full spectral re...
Groundwater N2O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N2O accumulation
Groundwater N2O emission factors nitrate-contaminated N2O accumulation
2010/1/18
We investigated the dynamics of denitrification and nitrous oxide (N2O) accumulation in 4 nitrate (NOW22;3) contaminated denitrifying sand and gravel aquifers of northern Germany (Fuhrberg, Sulinge...
The fate of N2O consumed in soils
fate N2O soils
2010/1/15
Soils are capable to consume N2O. It is generally assumed that consumption occurs exclusively via respiratory reduction to N2 by denitrifying organisms (i.e. complete denitrification). Yet, we are not...
Suitability of quantum cascade laser spectroscopy for CH4 and N2O eddy covariance flux measurements
Suitability quantum cascade laser spectroscopy CH4 N2O eddy covariance flux measurements
2010/1/14
A quantum cascade laser spectrometer was evaluated for eddy covariance flux measurements of CH4 and N2O using three months of continuous measurements at a field site. The required criteria for eddy co...
Factors controlling regional differences in forest soil emission of nitrogen oxides (NO and N2O)
Factors regional differences forest soil emission nitrogen oxides
2010/1/13
Soil emissions of NO and N2O were measured continuously at high frequency for more than one year at 15 European forest sites as part of the EU-funded project NOFRETETE. The locations represent differe...
Distribution of N2O in the Baltic Sea during transition from anoxic to oxic conditions
Distribution N2O Baltic Sea transition anoxic conditions oxic conditions
2010/1/13
In January 2003, a major inflow of cold and oxygen-rich North Sea Water terminated an ongoing stagnation period in parts of the central Baltic Sea. In order to investigate the role of North Sea Water ...
Controls over N2O,NOx and CO2 fluxes in a calcareous mountain forest soil
Controls N2O NOx CO2 fluxes calcareous mountain forest soil
2010/1/13
We measured nitrogen oxides (N2O and NOx), dinitrogen (N2) and carbon dioxide (CO2) emissions from a spruce-fir-beech forest soil in the North Tyrolean limestone Alps in Austria. The site received 10....
The relationship between NH3 emissions from a poultry farm and soil NO and N2O fluxes from a downwind forest
NH3 emissions poultry farm soil NO N2O fluxes downwind forest
2010/1/13
Intensive livestock farms emit large concentrations of NH3, most of which is deposited very close to the source. The presence of trees enhances the deposition. Rates to downwind forests can exceed 40 ...
N2O,NO and CH4 exchange,and microbial N turnover over a Mediterranean pine forest soil
N2O NO CH4 microbial N Mediterranean pine forest soil
2010/1/13
Trace gas exchange of N2O, NO/NO2 and CH4 between soil and the atmosphere was measured in a typical Mediterranean pine (Pinus pinaster) forest during two intensive field campaigns in spring and autumn...
Inventories of N2O and NO emissions from European forest soils
Inventories N2O NO emissions European forest soils
2010/1/12
Forest soils are a significant source for the primary and secondary greenhouse gases N2O and NO. However, current estimates are still uncertain due to the still limited number of field measurements an...