 |
| Titel |
Biochar Mediated Mechanisms for Reducing N2O Emissions: An Overview |
| VerfasserIn |
Jim Ippolito, Claudia Kammann, Michael Schirrmann, Nicole Wrage-Mönnig, Txema Estavillo, Teresa Fuertes, Mariluz Cayuela, Nils Borchard, Jeff Novak, Kurt Spokas, Gilbert Sigua |
| Konferenz |
EGU General Assembly 2017
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250138708
|
| Publikation (Nr.) |
 EGU/EGU2017-1816.pdf |
|
|
|
|
|
| Zusammenfassung |
| Continuing land-use change (e.g., greater inorganic and organic N fertilizer use) due to increasing population growth has led to significant increases in global N2O emissions. N2O has a high global warming potential; thus, a clear need exists to lessen further emissions. Biochar, a pyrolysis by-product, holds promise as a material that can influence soil and manure N transformations and drastically reduce N2O emissions. Biochar has been shown to: 1) entrap and thus decrease NO3-N concentrations; 2) sorb and thus decrease NH4-N concentrations; 3) alter microbial community composition; 4) be a source of electrons and thus alter redox conditions; 5) potentially react with N2O; and 6) locally increase soil pH, all of which can lead to reduced N2O emissions. The purpose of this presentation is to provide overarching mechanisms behind these six points in terms of how biochar reduces N2O emissions. |
|
|
|
|
|
|