TY - JOUR
T1 - Advanced Molecular Techniques Provide New Rigorous Tools for Characterizing Organic Matter Quality in Complex Systems
AU - Wilson, Rachel M.
AU - Tfaily, Malak M.
N1 - Funding Information:
All data presented in this manuscript, including figure source data, are pub licly available from the SPRUCE long- term repository by accessing https://doi. org/10.25581/spruce.050/1431334. A portion of this research was performed using EMSL (proposal: Wilson ID 49279), a DOE Office of Science User Facility sponsored by the Office of Biological and Environmental Research. Funding was provided by the U.S. Department of Energy Office of Biological and Environmental Research (DESC0010580) and Terrestrial Ecosystem Science (TES) Program under contract DE-SC0012088.
Funding Information:
All data presented in this manuscript, including figure source data, are publicly available from the SPRUCE long-term repository by accessing https://doi.org/10.25581/spruce.050/1431334. A portion of this research was performed using EMSL (proposal: Wilson ID 49279), a DOE Office of Science User Facility sponsored by the Office of Biological and Environmental Research. Funding was provided by the U.S. Department of Energy Office of Biological and Environmental Research (DESC0010580) and Terrestrial Ecosystem Science (TES) Program under contract DE-SC0012088.
Publisher Copyright:
©2018. American Geophysical Union. All Rights Reserved.
PY - 2018/6
Y1 - 2018/6
N2 - Carbon flux rates are widely understood to be substrate controlled; however, characterizing substrate quality continues to be a challenge. We suggest that, while optical measurements have their place, they are not the only, or the best, tool for characterizing organic matter quality. Nominal oxidation state of the carbon provides a thermodynamically relevant measure, which could be used as a metric of organic matter quality. Calculating nominal oxidation state of the carbon requires a suite of advanced complementary analysis but is then trivial to calculate from the resulting data sets.
AB - Carbon flux rates are widely understood to be substrate controlled; however, characterizing substrate quality continues to be a challenge. We suggest that, while optical measurements have their place, they are not the only, or the best, tool for characterizing organic matter quality. Nominal oxidation state of the carbon provides a thermodynamically relevant measure, which could be used as a metric of organic matter quality. Calculating nominal oxidation state of the carbon requires a suite of advanced complementary analysis but is then trivial to calculate from the resulting data sets.
KW - dissolved organic matter
KW - FTICRMS
KW - humics
KW - OM quality
KW - optical measurements
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U2 - 10.1029/2018JG004525
DO - 10.1029/2018JG004525
M3 - Comment/debate
AN - SCOPUS:85049846860
VL - 123
SP - 1790
EP - 1795
JO - Journal of Geophysical Research: Biogeosciences
JF - Journal of Geophysical Research: Biogeosciences
SN - 2169-8953
IS - 6
ER -