This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
Search
Skip to Search Results- 1Burd, Katheryn
- 1Chen, Yingxiu
- 1Critchley, Michael D
- 1Frei, Rebecca J
- 1James, Lindsay M
- 1Shewan, Renae L
-
Changes in peatland plant community composition and stand structure due to road induced flooding and desiccation
DownloadFall 2017
Roads built through peatlands with horizontal water flow can to act as dams that affect local hydrology and thus vegetation composition and structure. On the ‘upstream’ side of roads, soils can become waterlogged causing either increased tree mortality, or stunted tree growth; conversely, the...
-
Consequences of peatland disturbance for dissolved organic matter and nutrient transport and fate in northern catchments
DownloadFall 2023
Northern peatlands contain ~415 Pg of carbon (C) in soil organic matter and are significant sources of dissolved organic matter (DOM) in inland waters. DOM includes a range of molecules that are C-rich and may also contain nitrogen (N) and phosphorus (P). The escalating disturbance of peatlands...
-
Examination of Wet Meadow Creation as a Restoration Option for Extracted Peatland Sites in Alberta
DownloadSpring 2014
Question: Can a wet meadow plant community be established on abandoned peatlands through broadcast plant diaspore spreading in western Canada? Does fertilization impact the development and establishment of the wet meadow? Location: Evansburg, Alberta, Canada Methods: Wet meadow vascular and...
-
Formation and maintenance of permanent perched wetlands in the Boreal Plain of Western Canada
DownloadSpring 2017
The Boreal Plains Ecozone is characterized by a moisture deficit climate, as regional precipitation is less than potential evapotranspiration. Perched peatlands situated 20 m above regional groundwater have been identified as common features across the landscape in the Utikuma Region Study Area...
-
Fall 2019
Within the Boreal Plains of north-central Alberta, catchments situated within low permeability glacial terrain are composed of a mosaic of landscape units including ponds, peatlands, and upland aspen forest ecosystems within a sub-humid climatic zone where water deficit conditions are frequent. ...
-
Influence of wildfire and permafrost thaw on dissolved organic carbon (DOC) in northern peatlands; implications for lability and downstream transport
DownloadFall 2017
Peatlands in Canada’s western boreal forest are a major source of dissolved organic carbon (DOC) to downstream ecosystems, where DOC regulates carbon cycling, and can affect ecosystem productivity and habitat quality. Subarctic ecosystems are becoming increasingly vulnerable to the effects of...
-
Landscape influences on downstream concentrations of mercury, methylmercury, and dissolved organic carbon in permafrost peatland catchments
DownloadFall 2024
Thawing permafrost in northern regions threatens to increase the downstream delivery of mercury (Hg) and its organic form, methylmercury (MeHg). Permafrost thaw may mobilize large Hg and dissolved organic carbon (DOC) stores from permafrost soils. Once mobilized, inorganic Hg (Hg(II)) can be...
-
Fall 2013
Boreal peatlands are widely considered as an important carbon sink. Peat moisture is important for controlling carbon sequestration and smouldering combustion. Retrieving surface moisture is of great interest for carbon budget modelling and fire management in peatlands. To monitor at a large...
-
Spring 2015
A field experiment from 2012 to 2013 at two locations in northeastern Alberta examined the short-term success of different fen revegetation strategies following the removal of infrastructure (road and well-pad) associated with oil extraction. Although all treatments resulted in limited overall...