Changes in global groundwater organic carbon driven by climate change and urbanization

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dc.contributor.authorMcDonough, LKen_AU
dc.contributor.authorSantos, IRen_AU
dc.contributor.authorAndersen, MSen_AU
dc.contributor.authorO'Carroll, DMen_AU
dc.contributor.authorRutlidge, Hen_AU
dc.contributor.authorMeredith, KTen_AU
dc.contributor.authorOudone, PPen_AU
dc.contributor.authorBridgeman, Jen_AU
dc.contributor.authorGooddy, DCen_AU
dc.contributor.authorSorensen, JPRen_AU
dc.contributor.authorLapworth, DJen_AU
dc.contributor.authorMacDonald, AMen_AU
dc.contributor.authorWard, Jen_AU
dc.contributor.authorBaker, AAen_AU
dc.date.accessioned2023-02-10T00:46:36Zen_AU
dc.date.available2023-02-10T00:46:36Zen_AU
dc.date.issued2020-03-09en_AU
dc.date.statistics2022-11-22en_AU
dc.descriptionOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License.en_AU
dc.description.abstractClimate change and urbanization can increase pressures on groundwater resources, but little is known about how groundwater quality will change. Here, we use a global synthesis (n = 9,404) to reveal the drivers of dissolved organic carbon (DOC), which is an important component of water chemistry and substrate for microorganisms that control biogeochemical reactions. Dissolved inorganic chemistry, local climate and land use explained ~ 31% of observed variability in groundwater DOC, whilst aquifer age explained an additional 16%. We identify a 19% increase in DOC associated with urban land cover. We predict major groundwater DOC increases following changes in precipitation and temperature in key areas relying on groundwater. Climate change and conversion of natural or agricultural areas to urban areas will decrease groundwater quality and increase water treatment costs, compounding existing constraints on groundwater resources. © 2020, The Author(s)en_AU
dc.description.sponsorshipThis work was supported by the Australian Research Council [DP160101379], the Australian Government Research Training Program Scholarship and a scholarship provided by ANSTO. A large portion of the Australian DOC data was also made possible by grants from the Federal Government initiative National Collaborative Research Infrastructure Strategy (NCRIS), the Cotton Catchment Community (CRC-CCC), the NSW Department of Primary Industries Office of Water and support for students via the National Centre for Groundwater Research and Training (NCGRT). D.J.L. and D.C.G. were funded through the LOCATE NERC grant NE/N018087/1. Ethiopia data used in the global dataset comparison was funded by Hidden Crisis 2 NE/M008606/1. Iceland data was funded through BGS-NERC Earth Hazards and Systems Directorate. Kenya data collection was funded through funded through HyCRISTAL NE/M020452/1. Mali and Nigeria data collection were funded through UK Department for International Development, GA/09 F/094, Groundwater resilience to climate change in Africa. Malawi data collection was funded through TRIGR, REACH programme and Hidden Crisis 2 NE/M008606/1. Nepal data collection was funded through UK Department for International Development, Groundwater Resources in the Indo-Gangetic Basin, Grant 202125-108. Senegal data collection was funded through AfriWatSan, Royal Society DFID Africa Capacity Building Initiative, ref: AQ140023. Uganda data collection was funded through HyCRISTAL NE/M020452/1 and Hidden Crisis 2 NE/M008606/1. Brazil, Argentina and a number of Australian data used in the global analysis were collected with funding from the Australian Research Council (FT170100327).en_AU
dc.identifier.articlenumber1279en_AU
dc.identifier.citationMcDonough, L. K., Santos, I. R., Andersen, M. S., O’Carroll, D. M., Rutlidge, H., Meredith, K., Oudone, P., Bridgeman, J., Gooddy, D. C., Sorensen, J. P. R., Lapworth, D. J., MacDonald, A. M., Ward, J. & Baker, A. (2020). Changes in global groundwater organic carbon driven by climate change and urbanization. Nature communications, 11(1), 1-10, 1279. doi:10.1038/s41467-020-14946-1en_AU
dc.identifier.issn2041-1723en_AU
dc.identifier.journaltitleNature communicationsen_AU
dc.identifier.pagination1-10en_AU
dc.identifier.urihttps://doi.org/10.1038/s41467-020-14946-1en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14645en_AU
dc.identifier.volume11en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectGround wateren_AU
dc.subjectCarbonen_AU
dc.subjectClimatic changeen_AU
dc.subjectEnvironmental impactsen_AU
dc.subjectGeochemistryen_AU
dc.subjectUrban areasen_AU
dc.subjectWater qualityen_AU
dc.subjectLand useen_AU
dc.titleChanges in global groundwater organic carbon driven by climate change and urbanizationen_AU
dc.typeJournal Articleen_AU
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