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Probability Distributions of Radiocarbon in Open Linear Compartmental Systems at Steady-State

Chanca, Ingrid and Trumbore, Susan and Macario, Kita and Sierra, Carlos (2022). Probability Distributions of Radiocarbon in Open Linear Compartmental Systems at Steady-State. Journal of Geophysical Research: Biogeosciences. 127 :3 , e2021JG006673
[Research article]

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Abstract

Radiocarbon (C-14) is commonly used as a tracer of the carbon cycle to determine how fast carbon moves between different reservoirs such as plants, soils, rivers, or oceans. However such studies mostly emphasize the mean value (as Delta C-14) of an unknown probability distribution. We introduce a novel algorithm to compute Delta C-14 distributions from knowledge of the age distribution of carbon in linear compartmental systems at steady-state. Our results demonstrate that the shape of the distributions might differ according to the speed of cycling of ecosystem compartments and their connectivity within the system, and might contain multiple peaks and long tails. The distributions are also sensitive to the variations of Delta C-14 in the atmosphere over time, as influenced by the counteracting anthropogenic effects of fossil-fuel emissions (C-14-free) and nuclear weapons testing (excess C-14). Lastly, we discuss insights that such distributions can offer for sampling and design of experiments aiming to capture the precise variance of Delta C-14 values present in the multi-compartmental ecosystems.

Authors/Creators:Chanca, Ingrid and Trumbore, Susan and Macario, Kita and Sierra, Carlos
Title:Probability Distributions of Radiocarbon in Open Linear Compartmental Systems at Steady-State
Series Name/Journal:Journal of Geophysical Research: Biogeosciences
Year of publishing :2022
Volume:127
Number:3
Article number:e2021JG006673
Number of Pages:23
Publisher:AMER GEOPHYSICAL UNION
ISSN:2169-8953
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:radiocarbon, open systems, pool models, carbon age, transit time, ecology
URN:NBN:urn:nbn:se:slu:epsilon-p-116746
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116746
Additional ID:
Type of IDID
DOI10.1029/2021JG006673
Web of Science (WoS)000774802200001
ID Code:27604
Faculty:S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:25 Apr 2022 08:25
Metadata Last Modified:25 Apr 2022 08:31

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