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No Longer Anchored, Antarctic Ice Stream Surges to Sea--Under-Ice Sub Finds Ridge That May Have Held Back Pine Island Glacier（图）
Antarctic Ice Stream Sea Ice Sub Back Pine Island Glacier
2010/6/22
Satellite tracking has shown that the Pine Island Glacier, one of Antarctica's largest ice streams, is accelerating and thus contributing a growing share of the melt water raising sea levels worldwide...
Chronic nitrogen addition causes a reduction in soil carbon dioxide efflux during the high stem-growth period in a tropical montane forest but no response from a tropical lowland forest on a decadal time scale
Chronic nitrogen addition soil carbon dioxide efflux the high stem-growth period a tropical montane forest a tropical lowland forest
2010/1/21
Atmospheric nitrogen (N) deposition is rapidly increasing in tropical regions. We studied the response of soil carbon dioxide (CO2) efflux to long-term experimental N addition (125 kg N ha−1 yr&...
No detectable aerobic methane efflux from plant material,nor from adsorption/desorption processes
aerobic methane efflux plant material adsorption desorption processes
2010/1/18
In early 2006, Keppler et al. (Nature, 439:187–191) reported a novel finding that plant leaves, and even simple organic materials, can release methane under aerobic conditions. We investigated here wh...
综述了近年来南极冰盖雪冰中NO－ 3浓度的影响因素、NO－ 3的来源、沉积后变化及其浓度的时空变化特征的最新研究进展。尽管质子事件、超新星活动、陨石事件、火山喷发和核试验等各种突发事件都可能对南极雪冰中NO－ 3浓度产生影响，但综述和模拟结果表明中低纬度对流层闪电和极地平流层来源可能是南极雪冰中NO－ 3浓度本底的主要来源。综合研究表明，南极冰盖雪冰中记录的NO－ 3浓度可能是其来源、传输路径、沉...
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...
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...