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Controlled surface hydrology

Controlled surface hydrology refers to the addition of activities and/or structures (e.g., bunds, pumps, etc.) consistent with water storage usage where surface hydrological flows are controlled. Typically, wetlands with controlled surface hydrology are semi-enclosed structures with pump facilities.

Controlled surface hydrology – Controlled surface hydrology outside a channel

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Controlled surface hydrology outside a channel refers to the addition of activities and/or structures (e.g., bunds, pumps, etc.) consistent with water storage usage where surface hydrological flows are controlled. Typically, wetlands with controlled surface hydrology are semi-enclosed structures with pump facilities. Unlike bunding, controlled surface hydrology completely disconnects a wetland from natural hydrological processes.

Controlled surface hydrology in a palustrine or lacustrine wetland

A palustrine or lacustrine wetland which has structures and/or activities for water storage use where surface hydrological flows are controlled. Controlled surface hydrology in a palustrine wetland may increase wetland extent and depth to such a degree converting the wetland to a lacustrine wetland system.

Applicable Wetland Habitat Hydrological Modification:

  • ‘Modified – controlled surface hydrology outside a channel – freshwater wetland with no system change’ (H2-M6-a)
  • ‘Modified – controlled surface hydrology outside a channel – freshwater wetland with system change’ (H2-M6-f)

Controlled surface hydrology in an intertidal wetland

Activities and/or structures that convert an intertidal wetland to a lacustrine or palustrine wetland upstream of a bund which is then used for water storage with surface hydrological flows are controlled. Controlled surface hydrology alters the tidal inundation regime upstream of a bund by completely excluding tidal inundation resulting in the conversion to a palustrine or lacustrine wetland system.

Applicable Wetland Habitat Hydrological Modification:

  • ‘Modified – controlled surface hydrology outside a channel – intertidal wetland with system change’ (H2-M6-b)

Last updated: 7 June 2023

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2023) Controlled surface hydrology – Controlled surface hydrology outside a channel, WetlandInfo website, accessed 1 February 2024. Available at: https://wetlandinfo.des.qld.gov.au/wetlands/ecology/processes-systems/anthropogenic/hydro-concept-mod/control-surf-hydro/out-channel.html

Queensland Government
WetlandInfo   —   Department of Environment, Science and Innovation