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Catchment constrictions are a narrowing in the width and/or depth of the catchment resulting in the formation of a catchment ‘throat’ which acts as a bottle-neck. Often groundwater above a catchment constriction is shallower due to the restriction of groundwater flow through the constriction point. There may also be a widening of the floodplain up-gradient of a catchment constriction due to the restriction of sediment flow through the constriction point.
Unconsolidated sedimentary aquifers may provide a range of ecosystems with water required to support their faunal and floral communities, ecological processes and delivery of ecosystem services.
Last updated: 18 December 2015
This page should be cited as:
Catchment constrictions, WetlandInfo 2013, Queensland Government, Queensland, viewed 1 February 2017, .