A5013373801- Climate change and permafrost
- Cryospheric studies and observations
- Arctic and Antarctic ice dynamics
- Species Distribution and Climate Change
- Methane Hydrates and Related Phenomena
- Forest Management and Policy
- Groundwater and Isotope Geochemistry
- Forest ecology and management
- Microbial Community Ecology and Physiology
- Polar Research and Ecology
- Indigenous Studies and Ecology
Queen's University
2015-2017
Abstract The Arctic has experienced substantial warming during the past century with models projecting continued accompanied by increases in summer precipitation for most regions. A key impact of increasing air surface temperatures is deepening active layer, which expected to alter hydrological processes and pathways. aim this study was determine how one warmest wettest summers decade at a High watershed impacted water infiltration storage deeply thawed soil solute concentrations stream...
Permafrost disturbances (such as active layer detachment (ALD) slides) and thermal perturbation (deep ground thaw from high soil temperatures) alter Arctic surface water chemistry. However, the potential multi-year impacts on chemistry ultimate recovery time are not well understood. This study evaluates waters following disturbance of a High catchment in 2007 ALDs. We measured ion concentrations stable isotopes collected between 2006 2014 paired catchments — one disturbed other not. The...
Active layer detachments (ALDs) are permafrost disturbances associated with climate change and increased seasonal warming. Such perturbations result from thawing of the upper downslope movement overlying thawed material, including active layer. ALDs have potential to impact soil microbial community composition function in arctic ecosystems. Here we report an initial investigation ALD located at Cape Bounty on Melville Island Canadian High Arctic. We examined nutrient content as well...
Canada is the world's largest producer of maple syrup. Syrup production depends on weather and climatic conditions sugarbush. However, forest ecosystems are highly sensitive to climate change. The effect rapidly changing precipitation temperature patterns tree species concern as these long‐lived organisms cannot quickly adapt new environmental in which they find themselves. As temperatures increase it expected that there will be a change species' ranges poleward. This study uses...