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The Golden Gift of Groundwater in Australia’s MDB

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dc.contributor.authorAdamson, D.
dc.contributor.authorAuricht, C.
dc.contributor.authorLoch, A.
dc.contributor.editorChoi, S.H.
dc.contributor.editorShin, E.
dc.contributor.editorMakarigakis, A.K.
dc.contributor.editorSohn, O.
dc.contributor.editorClench, C.
dc.contributor.editorTrudeau, M.
dc.date.issued2021
dc.description.abstractThe Murray-Darling Basin (MDB) has the second-most variable surface flows in the world. The unreliable nature of MDB surface water supply is expected to increase under climate change. To partially address this future problem, Australia’s government released 927 gigalitres (GL = 1 billion litres) of groundwater rights to agricultural users in the basin under the Murray-Darling Basin Plan (2012-2026). A key argument for that action was the perception that groundwater resources in the basin are sustainable, and more reliable, than surface water resources. Access to more reliable water often transforms agricultural cropping choices. This chapter uses an optimization model of the MDB to explore how basin agriculture may transform in response to reliable water access—particularly in the northern part of the MDB. We find that traditional opportunistic cropping systems (i.e., annuals) shift towards high-value systems (e.g., perennials) and change irrigation practices when access to groundwater resources is increased. We also examine the change in value for those new groundwater rights as climate change impacts take hold.
dc.description.statementofresponsibilityDavid Adamson, Christopher Auricht and Adam Loch
dc.identifier.citationThe Role of Sound Groundwater Resources Management and Governance to Achieve Water Security, 2021 / Choi, S.H., Shin, E., Makarigakis, A.K., Sohn, O., Clench, C., Trudeau, M. (ed./s), vol.3, Ch.6, pp.133-149
dc.identifier.isbn9789231004681
dc.identifier.orcidAdamson, D. [0000-0003-1616-968X]
dc.identifier.orcidAuricht, C. [0000-0003-4454-7799]
dc.identifier.orcidLoch, A. [0000-0002-1436-8768]
dc.identifier.urihttps://hdl.handle.net/2440/133035
dc.language.isoen
dc.publisherUNESCO
dc.publisher.placeParis, France
dc.relation.granthttp://purl.org/au-research/grants/arc/DE160100213
dc.relation.ispartofseriesGlobal Water Security Issues Series; 3
dc.rights© UNESCO / UNESCO i-WSSM 2021. This publication is available in Open Access under the Attribution-Share Alike 3.0 IGO (CC-BY-SA 3.0 IGO) license (http:// creativecommons.org/ licenses/by-sa/3.0/igo/) from the UNESCO Open Access Repository (http://www.unesco.org/new/en/unesdoc-open-access) and i-WSSM web page (http://unesco-iwssm.org).
dc.source.urihttps://www.unesco.org/en/ideas-data/publications
dc.subjectConjunctive water resources; risk and uncertainty; transformation; reliability of rights; water rights
dc.titleThe Golden Gift of Groundwater in Australia’s MDB
dc.typeBook chapter
pubs.publication-statusPublished

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