Aquatic Ecodynamics


Lake Toolibin

Lake Toolibin is a 300 ha wetland listed under the RAMSAR Convention as a Wetland of International Importance. It has been adversely impacted by the land clearing and an altered hydrological regime that intensified the natural salinisation processes of its surrounding catchment. Efforts to remediate the impact of wetland salinisation and water table raise on the co-dominant plant species C. obesa and M. strobophylla included groundwater and surface water interventions, such as groundwater pumping and surface water diversion. To date, those management efforts have caused some improvement in vegetation health, especially for the species C. obesa, in some parts of the wetland. However, an understanding of why M. strobophylla had failed to recover despite management efforts is still needed.

WET0D has been applied in Lake Toolibin to predict the growth and mortality of the two co-dominant vegetation species in response to the management interventions that had been practiced in Lake Toolibin. The aim in using this ecohydrological model was not only to quantify the effectiveness of those interventions but also to understand their underlining control mechanisms, which is expected to manifest via hydrology, salinity and vegetation competition. This understanding helps to create a more specific and useful basis for wetland hydrology management.

An animation of Lake Toolibin"s hydrology validation. here
Decision Support System for Toolibin Catchment can be found here
Toolibin Management Scenarios can be found here
The report can be found here