2.7.2 Prioritising landscape classes for receptor impact modelling

Summary

The zone of potential hydrological change for the Gloucester subregion is defined in Section 3.3 of companion product 3-4 (impact and risk analysis) for the Gloucester subregion (Post et al., 2018). All bioregional assessment (BA) landscape classes in the ‘Economic land use’ landscape group were present within the zone of potential hydrological change, as was the ‘Native vegetation’ landscape class in the ‘Non-GDE’ landscape group. These comprised the vast majority (98.6%) of the area inside the zone of potential hydrological change. Within the zone, there were also 3.5 km² of groundwater-dependent ecosystems (GDEs), which were classified either as wet or dry sclerophyll forests, rainforests or forested wetlands; and 242 km of river, which were overwhelmingly (88%) dominated by perennial and intermittent streams with a gravel/cobble substrate. Estuarine landscape classes were not present in the zone of potential hydrological change.