Investigating dissolved organic matter cycling in High Arctic ponds and soils

• Main Author: Thiel, Gillian
• Other Authors: Geography and Planning, Lafrenière, Melissa
• Format: Thesis
• Language: English
• Published: 2018
• Subjects: dissolved organic matter; biodegradable dissolved organic carbon; incubation; fluorescence; absorbance; lability; ponds; soils; Canadian High Arctic; Arctic; Arctic Lake; Cape Bounty; polar desert; Tundra
• Online Access: http://hdl.handle.net/1974/24911

As the most bioavailable fraction of organic matter, dissolved organic matter (DOM) plays an important role in the carbon (C) cycle. Heterotrophic microorganisms degrade DOM and release it to the atmosphere as carbon dioxide (CO2) under oxygenated conditions. However, some DOM may be more readily bi...