|
|
|
|
|
| Skinner, Colin; Gattinger, Andreas; Müller, Adrian; Mäder, Paul; Fließbach, Andreas; Stolze, Matthias; Ruser, Reiner; Niggli, Urs. |
| It is anticipated that organic farming systems provide benefits concerning soil conservation and climate protection. A literature search on measured soil-derived greenhouse gas (GHG) (nitrous oxide and methane) fluxes under organic and non-organic management from farming system comparisons was conducted and followed by a meta-analysis. Up to date only 19 studies based on field measurements could be retrieved. Based on 12 studies that cover annual measurements, it appeared with a high significance that area-scaled nitrous oxide emissions from organically managed soils are 492 ± 160 kg CO2 eq. ha− 1 a− 1 lower than from non-organically managed soils. For arable soils the difference amounts to 497 ± 162 kg CO2 eq. ha− 1 a− 1. However, yield-scaled nitrous... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Air and water emissions. |
| Ano: 2014 |
URL: http://orgprints.org/24506/1/Skinner-etal-2014-SciTotalEnviron-468-469-p553-563.pdf |
| |
|
|
| Harter, Johannes; Krause, Hans-Martin; Schüttler, Stefanie; Ruser, Reiner; Fromme, Markus; Scholten, Thomas; Kappler, Andreas; Behrens, Sebastian. |
| Nitrous oxide (N2O) contributes 8% to global greenhouse gas emissions. Agricultural sources represent about 60% of anthropogenic N2O emissions. Most agricultural N2O emissions are due to increased fertilizer application. A considerable fraction of nitrogen fertilizers are converted to N2O by microbiological processes (that is, nitrification and denitrification). Soil amended with biochar (charcoal created by pyrolysis of biomass) has been demonstrated to increase crop yield, improve soil quality and affect greenhouse gas emissions, for example, reduce N2O emissions. Despite several studies on variations in the general microbial community structure due to soil biochar amendment, hitherto the specific role of the nitrogen cycling microbial community in... |
| Tipo: Journal paper |
Palavras-chave: Air and water emissions; Soil. |
| Ano: 2014 |
URL: http://orgprints.org/25755/1/Harter_et_al_ISMEJ_2013.pdf |
| |
|
| |
|
|
| Krauss, Maike; Perrochet, Frederic; Lori, Martina; Ruser, Reiner; Müller, Torsten; Zikeli, Sabine; Gruber, Sabine; Claupein, Wilhelm; Mäder, Paul; Gattinger, Andreas. |
| Die Umstellung vom Pflug auf eine reduzierte Bodenbearbeitung wird als Möglichkeit zur Minderung des Klimawandels im Zusammenhang mit einer erhöhten Humusanreicherung diskutiert. Ob reduzierte Bodenbearbeitungssysteme im biologischen Landbau zu einer erhöhten Lachgas-Entwicklung (N2O) führen, wurde bisher nur wenig beleuchtet. Im Langzeit-Bodenbearbeitungsversuch des FiBL in Frick wurden daher N2O-Emissionen über zwei Jahre hinweg und die Humusvorräte dreizehn Jahre nach Versuchsbeginn bis in eine Tiefe von 50 cm gemessen und mit weiteren mitteleuropäischen Studien verglichen. Die kürzlich publizierte Studie von Krauss et al. (2017) zeigt, dass es bei den N2O-Emissionen in der Weizen- und Kunstwiesenperiode keine Unterschiede zwischen den... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Soil quality; Soil tillage; Air and water emissions. |
| Ano: 2017 |
URL: http://orgprints.org/32117/1/Krauss-etal-2017-AgrarforschungSchweiz-Vol8-Nr6-p226-231.pdf |
| |
|
| |
|
|
|
