Indicator protocols: the extent of present native vegetation by IBRA sub-region (measured in hectares) 2008-08-11T23:25:14Z 2008-09-04T04:59:57Z Indicator protocols: the extent of present native vegetation by IBRA sub-region (measured in hectares) Native vegetation extent and distribution National Land and Water Resources Audit National Land and Water Resources Audit <p>The extent and distribution of present native vegetation is a key indicator of the status of our natural resource base. Native vegetation binds and nourishes soils; shelters and sustains wildlife; protects streams, wetlands, estuaries, and coastlines; absorbs carbon dioxide and emits oxygen.</p> PN21530 PN21530