The Role of Surface Water Drainage in Environmental Change: a Case Example of the Upper South East of South Australia; an Historical Review

摘要: The role of surface water drainage in environmental change Australia is rarely appreciated. Drains can modify hydrology, not only altering flow regimes but also rapidly dispersing contaminants and the natural hydrological balance associated flora fauna. Yet continues to be considered a viable management strategy rather than as cause land degradation. impact an inherently saline area South Australia, Upper East, investigated. Surface drains were constructed by developers attempt increase available for agricultural use. Drainage strategies altered direction, magnitude frequency flow. East has experienced periods both increased flooding, deficit, past one hundred years. region now receives less under pre-European conditions, local runoff channelled into through wetlands more before European settlement. Future are likely continue this trend, detriment remnant wetlands.