TERN Gingin Banksia Woodland SuperSite - Australia

Basic Information
Site Name
TERN Gingin Banksia Woodland SuperSite
Short name
Site Manager
Operating Organisation
aboveground biomass
CO2 fluxes
Site Description
Gingin Banksia Woodland SuperSite is located on the Swan Coastal Plain, approximately 10 km southwest of Gingin, near Perth, Western Australia, sited on land traditionally owned by the Yued group of the Noongar people. The site has an elevation of 51 m and 2 km from the University of Western Australia International Gravity Wave Observatory. The Gingin Banksia Woodland SuperSite is located in a natural woodland of high species diversity (overstorey dominated by Banksia spp.) that overlays the Gnangara groundwater mound, Perth’s most important groundwater resource. The mean annual precipitation is 641mm for this coastal heath woodland. The overstorey is dominated by Banksia spp. mainly B. menziesii, B. attenuata, and B. grandis with a height of around 7 m and leaf area index of about 0.8. There are occasional stands of eucalypts and acacia that reach to 10 m and have a denser foliage cover. There are many former wetlands dotted around the woodland, most of which were inundated all winter and some had permanent water 30 years ago. The water table has now fallen below the base of these systems and they are disconnected and are no longer permanently wet. The fine sediments, sometimes diatomaceous, hold water and they have perched water tables each winter. There is a natural progression of species accompanying this process as they gradually become more dominated by more xeric species. The soils are mainly Podosol sands, with low moisture holding capacity. Field capacity typically about 8 to 10%, and in summer these generally hold less than 2% moisture. The water table is at about 8.5 m below the surface, and a WA Dept of water long-term monitoring piezometer is near the base of the OzFlux tower. The Swan Coastal Plain bioregion consists of five main geomorphic entities that are roughly located parallel to the coastline including three coastal sand dune systems with ages increasing inland from the coast. Banksia Woodlands is restricted to the Swan Coastal Plain IBRA bioregion and immediately adjacent areas, including the Dandaragan plateau. Vegetation consists of a prominent tree layer of Banksia with scattered eucalypts and other tree species present within or emerging above the Banksia canopy, and a diverse understorey including sclerophyllous shrubs, graminoids and forbs. The Gingin SuperSite is collocated with the Land Ecosystem Atmosphere Program (LEAP) - Gingin.
Last modified
2020-06-29 10:06:10
General Characteristics, Purpose, History
Site Status
Year Established
An eddy-covariance flux tower has been installed on this site since 2011. TERN OzFlux will maintain the flux tower instrumentation that continuously measures exchanges of carbon dioxide, water vapour and energy between the terrestrial ecosystem and atmosphere. The eddy covariance instruments are mounted at 14.8 m with fluxes of carbon dioxide, water vapour and heat quantified with open-path eddy covariance instrumentation. Ancillary measurements include temperature, air humidity, wind speed and direction, precipitation, incoming and outgoing shortwave radiation, incoming and outgoing long wave radiation, incoming total and diffuse Photosynthetically Active Radiation (PAR) and reflected PAR. Soil water content and temperature are measured at six soil depths. Surface soil heat fluxes are also measured. The tower was erected in May 2011 with flux data collected since Oct 2011.
The Gingin flux station is located approximately 80km north of Perth, Western Australia. It was established by CSIRO in June 2011 and the flux instrumentation is now managed by Richard Silberstein of Edith Cowan University.
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