WinnSpace Repository

Snow covered soils produce N₂O that is lost from forested catchments prior to snowmelt

Show simple item record

dc.contributor.author Enanga, E.M.
dc.contributor.author Creed, I.F.
dc.contributor.author Fairweather, T.
dc.contributor.author Casson, N.J.
dc.date.accessioned 2018-09-25T22:03:55Z
dc.date.available 2018-09-25T22:03:55Z
dc.date.issued 2016-08-25
dc.identifier.citation Enanga, E.M., I.F. Creed, T. Fairweather, and N.J. Casson. “Snow covered soils produce N₂O that is lost from forested catchments prior to snowmelt.” Journal of Geophysical Research – Biogeosciences 121 (9) (September 2016): 2356–2368. DOI: 10.1002/2016JG003411. en_US
dc.identifier.issn 2169-8953
dc.identifier.uri http://hdl.handle.net/10680/1573
dc.description.abstract The magnitude of net soil nitrous oxide (N₂O) production from a snow‐covered catchment in a northern temperate forest was investigated. There was considerable net soil N₂O‐N production and consumption through the snowpack, ranging from −6.6 to 26.2 g‐N ha⁻¹ d⁻¹. There was no difference in net N₂O production among topographic positions despite significant variation in soil moisture, reduction‐oxidation conditions, and pore water dissolved organic carbon and nitrate. Soil temperatures did not vary among topographic positions, suggesting that temperatures at or above the freezing point allow N₂O production to proceed under the snowpack. Redox conditions were lower at wetland positions compared to lowlands and uplands, suggesting that the biogeochemical pathway of N₂O production varies with topography. Over the entire nongrowing season, 1.5 kg of N₂O‐N was exported to the atmosphere from the 6.33 ha catchment, representing 31% of the growing season N₂O‐N production. These results suggest that winter is an active time for gaseous N production in these forests and that N₂O production under the snowpack represents an often unmonitored flux of N from catchments. en_US
dc.description.sponsorship "This research was funded by an NSERC Discovery grant to I.F. Creed (217053-2009 RGPIN)." en_US
dc.description.uri https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JG003411 en_US
dc.language.iso en en_US
dc.publisher American Geophysical Union en_US
dc.subject BIOGEOSCIENCES: Nitrogen cycling en_US
dc.title Snow covered soils produce N₂O that is lost from forested catchments prior to snowmelt en_US
dc.type Article en_US
dc.identifier.doi 10.1002/2016JG003411 en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search WinnSpace


Browse

My Account