National nitrogen flows in Germany
Emissions of reactive nitrogen (Nr) cause a bundle of severe environmental damages. For the development of remediation measures it is necessary to quantify sources, sinks and flows of Nr. Therefore the National Nitrogen Budget was compiled for Germany and nearly 150 N...
Nitrogen budget estimation in the East Europe: A case study for Dniester and Prut catchments
Development of N budget at regional scale seems to be a valuable tool for policymakers and stakeholders to distinguish concrete N source sectors/ sinks causing higher environmental impacts. This study goal is to assess N budget within Dniester and Prut catchments...
Reduced soil N2O emission and enhanced denitrifier community size by growing grass versus bare soil
Background and objectives In terrestrial ecosystems, nitrogen (N) fertilization is the major source of nitrous oxide (N2O) emissions. Previous incubation experiments on soil N2O emission were mostly conducted without plants and, therefore, plant-microbe-soil...
Impact of climate change on nitric oxide and nitrous oxide emission from typical landuses in Scotland
Within this work we studied soil fluxes of NO and N2O in typical landuses across Eastern Scotland and the Highlands under simulated climate change conditions. We found that drought significantly increased N2O emissions in all landuses except treegrowing areas and...
Oxygen regulates nitrous oxide production directly in agricultural soils
The effects of in situ oxygen (O2) dynamics on nitrous oxide (N2O) production was investigated in a typical intensively managed Chinese cropping system under a range of environmental conditions (temperature, moisture, ammonium, nitrate, carbon etc.). Soil O2...
Effect of organic carbon and nitrogen addition on the emission of nitrous oxide in aggregates from straw-incorporated soil
Vegetable field is one of the important sources of N2O emission. Effect of exogenous organic carbon and nitrogen input on the N2O emissions in different sizes of soil aggregates collected from protected field with/without corn straw incorporation was investigated...
Nitrous oxide emissions from Soddy podzolic sandy loam soil after long-term fertilizer and manure application
The objective of this study was to estimate direct N2O emissions from Soddy podzolic sandy loam soil after long-term manure and N-fertilizer application. Closed chamber technique was used to measure the fluxes from the soil with different treatments: (1) Control, (2)...
The global distribution of soil nitrification and the fraction of associated N2O emissionby using stochastic gradient boosting models
Nitrification is one of pathways of N2O production in soils. Using stochastic gradient boosting models based on a global database, we quantified the global spatial distributions of gross nitrification rate and the fraction of associated N2O emission. We found that the...
Global estimates of N2O emissions associated with plant- and animal-based food production
Food production is a major contributor to climate change and land-use change. Current estimates of greenhouse gas (GHG) emissions from the food system are mostly based on “top-down” approaches and restricted to agriculture and land use sectors. Here we use a fully...
Variability of atmospheric ammonia and its sources over Indian region
This study will present the spatial and temporal variability of the atmospheric ammonia gas (NH3) over one of the major hotspots for NH3 in the world i.e. Indo Gangetic Plain (IGP) region. Due to limited ground observations from India, we have always been dependent on...