Title: Alberta Bog Net Nitrogen Mineralization, 2013-2015
Citation: Stuart, J., R. Wieder, and M. Vile. 2018. Alberta Bog Net Nitrogen Mineralization, 2013-2015 ver 2. Environmental Data Initiative. https://doi.org/10.6073/pasta/6d1222f36fec96a3f5f26713441f14d5
Study Site: Alberta, Canada
Purpose: Alberta bogs are subject to periodic wildfire. Although these bogs have persisted under low atmospheric nitrogen deposition (less than 2 kg N/ha/yr), nitrogen deposition in northern Alberta is increasing due to ongoing oil sands development. This study examined how time since fire and experimental N deposition affects nitrogen mineralization in near-surface bog peat.
Abstract: Net nitrogen mineralization (ammonification, nitrification, dissolved organic N production) was quantified using the buried bag technique in 5 Alberta bogs differing in time since fire. At each site, 24 2.4 _ 4.8 m plots were established, with 6 replicate plots receiving one of four N addition treatments: controls (receiving no water or N), H2O controls (receiving water, but no N; 0 kg N ha-1 yr-1), and 10 and 20 kg N ha-1 yr-1, applied as NH4NO3 dissolved in 15 L of H2O and applied via backpack sprayer eight times during each summer field season. We established plots and began N additions in 2011 at the Utikuma Bog site and in 2013 for the other four sites.
Supplemental Information Summary:
Research:
Further Info: Stuart, J.E.M., Wieder, R.K. & Vile, M.A. Net nitrogen mineralization in Alberta bog peat is insensitive to experimentally increased nitrogen deposition and time since wildfire. Biogeochemistry 138, 155–170 (2018). https://doi.org/10.1007/s10533-018-0437-y
Status: Complete
Keywords:
effects of disturbance,
Bog,
Nitrogen,
Geographical coordinates: North: 56.37445146387556, South: 54.77109857180812 East: -112.1989313753438 West: -115.28295120874444
Bounding Temporal Extent: Start Date: 2013-06-24, End
Date: 2015-10-15
