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Physical and Environmental Geography Commons™
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Full-Text Articles in Physical and Environmental Geography
Spatial Relationships Of Carbon Dioxide Exchange In An Upland Forested Wetland Complex In The Western Boreal Plain, Alberta, Canada, Danielle M. Solondz
Spatial Relationships Of Carbon Dioxide Exchange In An Upland Forested Wetland Complex In The Western Boreal Plain, Alberta, Canada, Danielle M. Solondz
Theses and Dissertations (Comprehensive)
This study examined the midday (10:00 - 16:00) growing season (April - October) surface cover CO2 relationships with different canopy closures and microtopography (lawn and depression) in a forested upland - peatland - pond complex in the Western Boreal Plain, north - central Alberta, Canada. A dynamic - closed chamber technique was used to: evaluate the relative contributions of heterotrophic and autotrophic respiration and photosynthesis and assess the relative roles of substrate, plant communities, hydrology, and microclimates on CO2 exchange.
Large differences were observed among the forest floors of landscape units with different canopy covers with respect to …
Evapotranspirative Controls In A Low Arctic Tundra Environment, Daring Lake, Nwt, Canada, Shawn Lecompte
Evapotranspirative Controls In A Low Arctic Tundra Environment, Daring Lake, Nwt, Canada, Shawn Lecompte
Theses and Dissertations (Comprehensive)
Determining the extent to which changes in vegetation assemblages influence evapotranspiration in the Arctic could potentially contribute to a more realistic estimation of evaporation in a warming climate.
This project aims to determine whether variations in PET and AET rates measured at six tundra vegetation communities can be attributed to the differing vegetation. This will provide a more realistic estimate of change in the water and energy cycles, as well as evaporative processes for a warmer future, caused by enhanced global warming. Predictions of temperature and precipitation regarding future climate in Canada’s Western low Arctic vary greatly. The majority of …