Groundwater discharge is associated with salinity and pollution problems. The widespread presence of millions of saline lakes in North America, Africa and Australia, shows that across the geological record, most salinity and desertification problems have been caused by saline groundwater discharge. In recent times, dryland salinity has spread widely in southern Australia, resulting in the loss of more than 50% of the fresh streams in Western Australia and causing major salinity problems in the Murray River in South Australia.
Defines the discharge mechanisms that occur in nature
Explains how and where discharge takes place, and the effects of soil, water table and vegetation on discharge
Introduces the mechanisms of biological discharge (plants, etc.) and the critical role it has in controlling groundwater recharge
Presents the various physical, chemical and isotope techniques used for determining discharge rates
Discusses the various options available for enhancing groundwater discharge.
Techniques for Discharge Determination
Estimation of Diffuse Discharge from Shallow Water Tables
Methods of Determining Source of Plant Water
Techniques for Discharge Enhancement
Landholders, integrated catchment management groups, landcare groups, extension officers, hydrologists, agronomists, hydrogeologists, local government engineers and planners, soil and agricultural scientists, academics and students.