Socio-ecological value of wetlands: the dilemma of balancing human and ecological water needs

Abstract

Humans' need for water has changed flow regimes, degraded ecosystems and depleted water resources. In the Wimmera Mallee in Victoria, the dilemma between human and ecological water requirements began in the colonial era when a channel and dam system was built to transport water. Prolonged drought prompted government to replace this with the Wimmera Mallee Pipeline. This pipeline produced a closed system, reducing water available for the environment, including on-farm wetlands. This study identifies the socio-ecological values of on-farm wetlands and the impact the changed water regime had on these. An interpretative landscape approach was used to integrate geophysical, ecological and social information on nine on-farm wetlands. This identified a range of socio-ecological values on-farm wetlands provide, including aesthetic, amenity, production and biodiversity, that are impacted by the pipeline system. A range of implications for on-farm wetland management were also identified.