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Skip to Search Results- 1Alejandro, Alvarez
- 1Anwar, Taslima
- 1Bandara, Sasiri
- 1Campos Ruiz, Rodrigo T.
- 1Kristensen, Todd Jay
- 1Poletto, Christina Livia
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Bottom-up controls of flammability in the Canadian boreal forest at multiple temporal and spatial scales
DownloadFall 2023
Wildfires are the most common disturbances occurring in the Canadian boreal forests. Their incidence and characteristics are controlled by different factors at different temporal and spatial scales. At every scale, vegetation is an essential factor fueling fires. Despite its importance, some...
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Challenges of utilizing municipal compost as an amendment in boreal forest reclamation subsoil material
DownloadFall 2018
Forest reclamation sites are often located in areas not suited for agriculture and therefore have poor soil conditions. To assist in the rehabilitation of forests on these types of sites, organic amendments can be used. Close to large urban centers, compost derived from municipal organic waste...
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Fall 2016
The Alaska Highway through Southwestern Yukon is located in the discontinuous permafrost zone with many areas of the highway corridor associated with degrading permafrost. Given the strategic value of the corridor, it is critical to have a clear understanding of permafrost characteristics and...
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Forest Resilience to Wildfire and Harvesting: A Comparison of Microclimate & Understory Plant Diversity in Island Remnants a Decade After Disturbance
DownloadFall 2023
An important feature of ecosystem-based forest management in the boreal mixedwood of northern Alberta, Canada – and in other forests around the world - is the emulation of natural disturbances such as wildfire. Post-fire landscapes typically include unburned or partially burned patches of forest...
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Fall 2022
In order to understand permafrost and paleoenvironmental conditions in the Mackenzie Delta Region, permafrost cores were collected in the winter of 2017, near the newly developed Inuvik-Tuktoyaktuk Highway (ITH), NWT, by the NWT Geological Survey, NWT Department of Infrastructure, the University...
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Modeling the Impacts of Global Change on Tree Growth and Stand Density of Boreal Forests in Canada
DownloadFall 2022
Abstract Global change of environment and human activity has profoundly impacted boreal forests in structure, dynamics and function, imposing serious challenges for maintaining forest growth and yield in Canada. In this thesis, I address three questions important for understanding and predicting...
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Postglacial Human and Environmental Landscapes of Northeastern Alberta: An analysis of a late Holocene sediment record from Sharkbite Lake, Alberta
DownloadSpring 2019
Sharkbite Lake lies in northeastern Alberta’s lower Athabasca River Valley, within which lies the modern boundaries of the Mineable Oil Sands Region (MOSR). Much of the palaeoecological research to date has addressed the establishment of the Boreal Forest; however, the late Holocene...
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Records of atmospheric mercury deposition and post-depositional mobility in peat permafrost archives from central and northern Yukon, Canada
DownloadFall 2017
Environmental archives provide a feasible means for studying the biogeochemical cycling of heavy metals including mercury (Hg). Although many temperate peat bogs have been successfully used to reconstruct natural and anthropogenic atmospheric Hg deposition fluxes, northern circumpolar permafrost...
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Study of the Chinese loess and Siberian flood basalts: new global scale insights to the paleoclimate and geomagnetic field changes
DownloadSpring 2017
Paleomagnetism, in conjunction with other earth science methods, studies the behavior of the Earth's magnetic field, the drift of tectonic plate, climate and environmental changes. This thesis implements different applications of paleomagnetism to develop a technique to evaluate age for the...
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The Late Holocene White River Ash East Eruption and Pre-contact Culture Change in Northwest North America
DownloadSpring 2020
The White River Ash East eruption of A.D. 846-848 blanketed portions of Subarctic Yukon and Northwest Territories, Canada in volcanic ash. This dissertation examines impacts of the eruption on pre-contact hunter-gatherer social relationships. The main bodies of data on which interpretations are...