The Perth Region has five Sub-regional areas defined by their natural resource characteristics.
The regions are North, North-East, East, South and Coastal. Hover your mouse over the map below to see a brief description of each area.
The North Geographic catchment area is 1270.145 km2 and comprises the Swan Coastal Plain.
The Quindalup, Spearwood and Bassendean Dune systems of the Swan Coastal Plain contain woodlands, with the Banksia dominated Bassendean Sands covering the greatest area. There is considerable floral biodiversity on all of these dunal systems, with generally high species richness of understorey plants.
Some of the issues being tackled by the North Geographic Reference Group at Perth Region NRM include land clearing, the impacts of climate change and industrial development.
The North East Geographic catchment area is 2246.356 km2 and comprises the Darling Plateau and the Dandaragan Plateau/Scarp. The Ellen Brook is the major tributary running through the area.
The Dandaragan Plateau/Scarp, on the north eastern edge of the Swan Coastal Plain contains open Marri woodlands, Jarrah, various Banksia species and Pricklybark. The Darling Plateau contains a variety of vegetation complexes including open forests and woodlands (with several Jarrah, Marri and Wandoo being the most dominant but also including several Eucalypts), shrublands, herblands, sedgelands and grasslands.
The issues that are addressed in the region vary; from the eutrophication of Ellen Brook and the Brockman River to the eradication of weeds and mitigation of introduced species. Water quality monitoring of Ellen Brook is regularly undertaken and a Fertiliser Action Plan has been developed along with nutrient filters at Ellen Brook.
The East Geographic catchment area is 2549.505 km2 and comprises the Darling Scarp and Darling Plateau. The area boarders the Avon River and encompasses the Wooroloo Brook, Helena River and the Mundaring Weir Catchment Area.
The area contains a variety of vegetation complexes including open forests and woodlands (with several Jarrah, Marri and Wandoo being the most dominant but also including several Eucalypts), shrublands, herblands, sedgelands and grasslands.
Some of the issues that are tackled in this region include biosecurity, planning for landuse, water quality, climate change and Indigenous cultural heritage.
The South Geographic catchment area is 2102.671 km2 and comprises the Darling Plateau, Darling Scarp and the Swan Coastal Plain.
The Canning River system features in the area and comprises the Southern River and Bickley Brook as its major tributaries.
The area contains a variety of vegetation complexes including open forests and woodlands (similar to those in the East Region), shrublands, herblands, sedgelands and grasslands. The Swan Coastal Plain Banksia dominated Bassendean Sands can also be found. There is considerable floral biodiversity on all of these dunal systems, with generally high species richness of understorey plants.
Members of PR NRM's South Geographic Reference Group work on a variety of issues including sediment and erosion control, weed control, water quality monitoring, groundwater contamination and monitoring as well as ensuring indigenous values are protected along the Swan and Canning Rivers.
The Coastal Geographic catchment area is 1540.800 km2 and comprises of the Swan Coastal Plain and Western Australian Marine environment.
The Quindalup, Spearwood and Bassendean Dune systems of the Swan Coastal Plain contain woodlands, with the Banksia dominated Bassendean Sands covering the greatest area. There is considerable floral biodiversity on all of these dunal systems, with generally high species richness of understorey plants.
Some of the issues being tackled by the Coastal Program at Perth Region NRM, include; educating the wider community across a range of age groups on coastal ecology and the importance of conservation, the Coastcare Program and UNESCO Sandwatch program and the Coastcare rehabilitation program.
