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Alteration of Nitrous Oxide Emissions from Floodplain Soils by Aggregate Size, Litter Accumulation and Plant–soil Interactions by Martin Ley; Moritz F. Lehmann; Pascal A. Niklaus; Jörg Luster is a Environmental Science article available to read on EtoBox.

What is Alteration of Nitrous Oxide Emissions from Floodplain Soils by Aggregate Size, Litter Accumulation and Plant–soil Interactions about?

Abstract. Semi-terrestrial soils such as floodplain soils are considered potential hot spots of nitrous oxide (N2O) emissions. Microhabitats in the soil – such as within and outside of aggregates, in the detritusphere, and/or in the rhizosphere – are considered to promote and preserve specific redox conditions. Yet our understanding of the relative effects of such microhabitats and their interactions on N2O production and consumption in soils is still incomplete. Therefore, we assessed the effect of aggregate size, buried leaf litter, and plant–soil interactions on the occurrence of enhanced N2O emissions under simulated flooding/drying conditions in a mesocosm experiment. We used two model soils with equivalent structure and texture, comprising macroaggregates (4000–250 μm) or microaggregates (<250 μm) from a N-rich floodplain soil. These model soils were planted with basket willow (Salix viminalis L.), mixed with leaf litter or left unamended. After 48 h of flooding, a period of enhanced N2O emissions occurred in all treatments. The unamended model soils with macroaggregates emitted significantly more N2O during this period than those with microaggregates. Litter addition modulat

Who reads Alteration of Nitrous Oxide Emissions from Floodplain Soils by Aggregate Size, Litter Accumulation and Plant–soil Interactions?

Author

Martin Ley; Moritz F. Lehmann; Pascal A. Niklaus; Jörg Luster

Publisher

Copernicus GmbH; Göttingen: Copernicus Publ. (ISSN 1726-4189)

Published

2018

Language

EN

Field

Environmental Science (Physical Sciences)