Evidence map›Paper›PMID 35444183›Full record

ArticleNature communications2022

A new conceptual framework for the transformation of groundwater dissolved organic matter.

Liza K McDonough, Martin S Andersen, Megan I Behnke, Helen Rutlidge, Phetdala Oudone, Karina Meredith, Denis M O'Carroll, Isaac R Santos, Christopher E Marjo, Robert G M Spencer and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
43.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 238 citations in OpenAlex.

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  6. Boundary conditions for exploiting the cooperation ofApplied and environmental microbiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Liza K McDonoughAustralian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Rd, Lucas Heights, NSW, 2234, Australia. lizam@ansto.gov.au.ORCID http://orcid.org/0000-0001-7323-5108
Martin S AndersenConnected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.
Megan I BehnkeDepartment of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, 32310, USA.ORCID http://orcid.org/0000-0002-9654-9078
Helen RutlidgeConnected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.
Phetdala OudoneConnected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.
Karina MeredithAustralian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Rd, Lucas Heights, NSW, 2234, Australia.
Denis M O'CarrollConnected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.ORCID http://orcid.org/0000-0001-6557-226X
Isaac R SantosNational Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, 2450, Australia.
Christopher E MarjoMark Wainwright Analytical Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.ORCID http://orcid.org/0000-0003-0549-0363
Robert G M SpencerDepartment of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, 32310, USA.
Amy M McKennaNational High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310-4005, USA.ORCID http://orcid.org/0000-0001-7213-521X
Andy BakerConnected Waters Initiative Research Centre, UNSW Sydney, Sydney, NSW, 2052, Australia.ORCID http://orcid.org/0000-0002-1552-6166
UNSW Sydney · AUFlorida State University · USAustralian Nuclear Science and Technology Organisation · AUSouthern Cross University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Groundwater comprises 95% of the liquid fresh water on Earth and contains a diverse mix of dissolved organic matter (DOM) molecules which play a significant role in the global carbon cycle. Currently, the storage times and degradation pathways of groundwater DOM are unclear, preventing an accurate estimate of groundwater carbon sources and sinks for global carbon budgets. Here we reveal the transformations of DOM in aging groundwater using ultra-high resolution mass spectrometry combined with radiocarbon dating. Long-term anoxia and a lack of photodegradation leads to the removal of oxidised DOM and a build-up of both reduced photodegradable formulae and aerobically biolabile formulae with a strong microbial signal. This contrasts with the degradation pathway of DOM in oxic marine, river, and lake systems. Our findings suggest that processes such as groundwater extraction and subterranean groundwater discharge to oceans could result in up to 13 Tg of highly photolabile and aerobically biolabile groundwater dissolved organic carbon released to surface environments per year, where it can be rapidly degraded. These findings highlight the importance of considering groundwater DOM in global carbon budgets.

Indexed as

Dissolved Organic MatterGroundwaterCarbonLakesCarbonDissolved Organic Matter

Identifiers

PMID35444183
PMCPMC9021313
OpenAlexW4224241643

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.