Faculty Mentor(s)

Dr. Michael Philben, Geological & Environmental Science

Document Type

Poster

Event Date

4-12-2024

Abstract

Peatlands are an important carbon sink. However, climate change threatens to cause the peatlands to release their stored-up carbon. This would result in lots of carbon dioxide and methane to be released into the atmosphere due to the increased peat decomposition. This would end up forming a positive feedback loop, and thus resulting in more and more carbon lost from the peat. The biochemical composition of the peat is an indicator of the degradation state of the peat as well as its ongoing vulnerability to decomposition. In this study, we developed an HPLC method for analyzing the carbohydrate composition of peat. The method begins with acid hydrolysis to convert carbohydrate polymers to sugar monomers. The monomers are then derivatized with 1-Phenyl-3-methyl-5-pyrazolone (PMP) and then analyzed via HPLC/Diode array detection. We used the method to determine patterns of carbohydrate composition in surface peats across a climate transect of Michigan peatlands.

Comments

This research was supported by the National Aeronautics and Space Administration (NASA), under award number 80NSSC20M0124, Michigan Space Grant Consortium (MSGC) and by the Global Water Research Institute.

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