Sources and Delivery of Suspended Sediment and Phosphorus to Australian Rivers

Product Information

“Combining tracers and landscape modelling to predict sediment and phosphorus from different landuses and erosion processes.”

Sedimentation in streams and rivers draining agricultural land has resulted in severe environmental degradation. Eutrophication is a major associated issue, and the persistent occurrence of algal blooms has been linked with excess available P. The total amount of P in these systems has been shown to be dominated by the sediment bound load derived from erosion of diffuse sources, although fertiliser P has also been implicated. In this NEMP sponsored project we determine the relative contributions of both sediment and sediment bound P from these different landuses and erosion sources in two contrasting catchments.