No significant nitrous oxide emissions during spring thaw under grazing and nitrogen addition in an alpine grassland

2012 ◽  
Vol 18 (8) ◽  
pp. 2546-2554 ◽  
Author(s):  
Kaihui Li ◽  
Yanming Gong ◽  
Wei Song ◽  
Jinling Lv ◽  
Yunhua Chang ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrogen Addition ◽  
Alpine Grassland ◽  
Nitrous Oxide Emissions

Global meta-analysis of terrestrial nitrous oxide emissions and associated functional genes under nitrogen addition

2021 ◽  
pp. 108523
Author(s):  
Luncheng You ◽  
Gerard H. Ros ◽  
Yongliang Chen ◽  
Xue Yang ◽  
Zhenling Cui ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Meta Analysis ◽  
Nitrogen Addition ◽  
Nitrous Oxide Emissions ◽  
Functional Genes

scholarly journals Nitrous oxide emissions from European agriculture; an analysis of variability and drivers of emissions from field experiments

2012 ◽  
Vol 9 (7) ◽  
pp. 9259-9288 ◽  
Author(s):  
R. M. Rees ◽  
J. Augustin ◽  
G. Alberti ◽  
B. C. Ball ◽  
P. Boeckx ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Field Experiments ◽  
Nitrogen Addition ◽  
Greenhouse Gas Mitigation ◽  
Nitrous Oxide Emissions ◽  
Management Interventions ◽  
Management Controls ◽  
The Uk ◽  
Ipcc Default ◽  
Selection Of

Abstract. Nitrous oxide emissions from a network of agricultural experiments in Europe and Zimbabwe were used to explore the relative importance of site and management controls of emissions. At each site, a selection of management interventions were compared within replicated experimental designs in plot based experiments. Arable experiments were conducted at Beano in Italy, El Encin in Spain, Foulum in Denmark, Logården in Sweden, Maulde in Belgium, Paulinenaue in Germany, Harare in Zimbabwe and Tulloch in the UK. Grassland experiments were conducted at Crichton, Nafferton and Peaknaze in the UK, Gödöllö in Hungary, Rzecin in Poland, Zarnekow in Germany and Theix in France. Nitrous oxide emissions were measured at each site over a period of at least two years using static chambers. Emissions varied widely between sites and as a result of manipulation treatments. Average site emissions (throughout the study period) varied between 0.04 and 21.21 kg N2O-N ha−1 yr−1, with the largest fluxes and variability associated with the grassland sites. Total nitrogen addition was found to be the single most important determinant of emissions, accounting for 15% of the variance (using linear regression) in the data from the arable sites (p < 0.0001), and 77% in the grassland sites. The annual emissions from arable sites were significantly greater than those that would be predicted by IPCC default emission factors. Variability in N2O within sites that occurred as a result of manipulation treatments was greater than that resulting from site to site and year to year variation, highlighting the importance of management interventions in contributing to greenhouse gas mitigation.

scholarly journals Nitrous oxide emissions from European agriculture – an analysis of variability and drivers of emissions from field experiments

2013 ◽  
Vol 10 (4) ◽  
pp. 2671-2682 ◽  
Author(s):  
R. M. Rees ◽  
J. Augustin ◽  
G. Alberti ◽  
B. C. Ball ◽  
P. Boeckx ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Field Experiments ◽  
Nitrogen Addition ◽  
Greenhouse Gas Mitigation ◽  
Nitrous Oxide Emissions ◽  
N2o Emissions ◽  
Management Interventions ◽  
Management Controls ◽  
The Uk ◽  
Selection Of

Abstract. Nitrous oxide emissions from a network of agricultural experiments in Europe were used to explore the relative importance of site and management controls of emissions. At each site, a selection of management interventions were compared within replicated experimental designs in plot-based experiments. Arable experiments were conducted at Beano in Italy, El Encin in Spain, Foulum in Denmark, Logården in Sweden, Maulde in Belgium, Paulinenaue in Germany, and Tulloch in the UK. Grassland experiments were conducted at Crichton, Nafferton and Peaknaze in the UK, Gödöllö in Hungary, Rzecin in Poland, Zarnekow in Germany and Theix in France. Nitrous oxide emissions were measured at each site over a period of at least two years using static chambers. Emissions varied widely between sites and as a result of manipulation treatments. Average site emissions (throughout the study period) varied between 0.04 and 21.21 kg N2O-N ha−1 yr−1, with the largest fluxes and variability associated with the grassland sites. Total nitrogen addition was found to be the single most important determinant of emissions, accounting for 15% of the variance (using linear regression) in the data from the arable sites (p < 0.0001), and 77% in the grassland sites. The annual emissions from arable sites were significantly greater than those that would be predicted by IPCC default emission factors. Variability of N2O emissions within sites that occurred as a result of manipulation treatments was greater than that resulting from site-to-site and year-to-year variation, highlighting the importance of management interventions in contributing to greenhouse gas mitigation.

Effects of Straw Recycling of Winter Covering Crop on Methane and Nitrous Oxide Emissions in Paddy Field

2011 ◽  
Vol 37 (9) ◽  
pp. 1666-1675
Author(s):  
Hai-Ming TANG ◽  
Xiao-Ping XIAO ◽  
Wen-Guang TANG ◽  
Guang-Li YANG
Keyword(s):  
Nitrous Oxide ◽  
Paddy Field ◽  
Nitrous Oxide Emissions

scholarly journals Biochar and urease inhibitor mitigate NH3 and N2O emissions and improve wheat yield in a urea fertilized alkaline soil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Khadim Dawar ◽  
Shah Fahad ◽  
M. M. R. Jahangir ◽  
Iqbal Munir ◽  
Syed Sartaj Alam ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Grain Yield ◽  
Block Design ◽  
N Uptake ◽  
Nitrous Oxide Emissions ◽  
N2o Emissions ◽  
Urease Inhibitor ◽  
Alkaline Soil ◽  
Total N ◽  
N Assimilation

AbstractIn this study, we explored the role of biochar (BC) and/or urease inhibitor (UI) in mitigating ammonia (NH3) and nitrous oxide (N2O) discharge from urea fertilized wheat cultivated fields in Pakistan (34.01°N, 71.71°E). The experiment included five treatments [control, urea (150 kg N ha−1), BC (10 Mg ha−1), urea + BC and urea + BC + UI (1 L ton−1)], which were all repeated four times and were carried out in a randomized complete block design. Urea supplementation along with BC and BC + UI reduced soil NH3 emissions by 27% and 69%, respectively, compared to sole urea application. Nitrous oxide emissions from urea fertilized plots were also reduced by 24% and 53% applying BC and BC + UI, respectively, compared to urea alone. Application of BC with urea improved the grain yield, shoot biomass, and total N uptake of wheat by 13%, 24%, and 12%, respectively, compared to urea alone. Moreover, UI further promoted biomass and grain yield, and N assimilation in wheat by 38%, 22% and 27%, respectively, over sole urea application. In conclusion, application of BC and/or UI can mitigate NH3 and N2O emissions from urea fertilized soil, improve N use efficiency (NUE) and overall crop productivity.

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