Indicator: BD-18 Area revegetated with woody vegetation

Data

Area of woody regrowth in the Australia ('000 hectares), 1977-2004
1977 1980 1985 1988 1989 1991 1992 1995 1998 2000 2002 2004
ACT 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
NSW 482.3 247.1 417.2 285.8 199.9 181.6 197.8 342.7 232.5 140.1 158.3 220.7
NT 7.7 3.7 7.7 3.9 3.3 4.7 4.6 7.6 10.4 7.9 9.0 11.9
QLD 886.3 290.4 704.5 415.9 319.0 314.7 275.3 357.6 338.9 201.0 284.0 259.1
SA 78.1 27.7 50.3 26.4 29.0 19.3 18.9 44.9 33.0 19.1 32.1 32.8
TAS 9.2 2.8 34.7 13.7 8.9 14.1 16.6 19.6 17.4 14.3 26.3 26.5
VIC 82.3 27.7 69.2 37.8 36.7 42.0 38.4 46.2 34.6 32.5 68.2 71.0
WA 133.1 50.9 103.3 79.5 77.7 43.0 34.3 67.1 79.1 86.4 94.6 63.8
Total 1,680.9 652.3 1,389.0 865.0 676.6 621.4 587.9 887.7 747.9 503.2 674.4 687.6

Source: ERIN (Unpublished Data) 2002, SoE/ERIN remote sensing project, Contact:Elizabeth.McDonald@deh.gov.au.

Total regrowth in Australia (‘000 hectares), 1977-2004

Total regrowth in Australia (‘000 hectares), 1977-2004

Source: ERIN (Unpublished Data) 2002, SoE/ERIN remote sensing project, Contact:Elizabeth.McDonald@deh.gov.au.

Total regrowth in Australia (‘000 hectares), 1977-2004

Total regrowth in Australia (‘000 hectares), 1977-2004

Source: ERIN (Unpublished Data) 2002, SoE/ERIN remote sensing project, Contact:Elizabeth.McDonald@deh.gov.au.

Extent of regrowth of woody vegetation as a percentage of the initial (1980) area of woody vegetation

Extent of regrowth of woody vegetation as a percentage of the initial (1980) area of woody vegetation

Extent of regrowth of woody vegetation as a proportion of IBRAs

Extent of regrowth of woody vegetation as a proportion of IBRAs

Nature of major revegetation activity in South Australia - 1999-2001

Nature of major revegetation activity in South Australia - 1999-2001
Reported revegetation across NSW, 1995–2001
Reason for planting Area planted ('000 ha)
Before 1995–96 1995–96 1996–97 1997–98 1998–99 1999–00 2000–01
Revegetation on private farms (non-forestry purposes) 10 4 17 20 16 48 43
Private forestry Timber or pulp production: hardwoods 5 1 1 nd nd 3 2
Farm forestry >1 >1 >1 1 1 1 > 1
1995 1996 1997 1998 1999 2000 2001
Public forestry (State Forests of NSW) Timber or pulp production: hardwoods 0.9 2.8 4.3 7.8 5.5 3.4 3.2
Timber or pulp production: softwoods 4.7 6 6 5.6 4.9 3.9 4.2

Source: Department of Environment and Conservation (NSW) 2003, State of the Environment, Chapter 6 Biodiversity Table 6.2, Department of Environment and Conservation, Sydney, viewed 13 Oct 2005, http://www.epa.nsw.gov.au/soe/soe2003/chapter6/chp_6.2.htm.

What the data mean

Revegetation programs/regrowth have remained fairly constant across the nation over the last 30 years except in 1977 and 1985, when regrowth was significantly higher. Revegetation has not kept pace with land clearing. See Indicator Change in area and proportion of woody native vegetation . The greatest regrowth has occurred in Queensland but this has not offset clearing - the extent of woody vegetation has decreased in that State by about 5 million hectares since 1972. See indicator The proportion and area of native vegetation and changes over time .

Data Limitations

Some regrowth may bear little resemblance to the communities that were previously cleared, eg dense woody shrubs may form a monoculture.

Data derived from ERIN analysis do not distinguish between natural regrowth and revegetation programs

Woody vegetation is defined as vegetation with at least 20% canopy cover and 2 metres tall

The woody non-woody data is 'AGO Version July 2005'. This data was provided to ERIN by the AGO and was the best available information at the time. All subsequent analysis by ERIN assumes data are correct as received from the supplier. This is an 'Indicative Analysis Only' with a focus on monitoring trends through time and the comparison of the results between the IBRA regions. For this reason all results to have been rounded to the nearest 100 ha.

Issues for which this is an indicator and why

Inland Waters — Catchment scale influences - Influence of climate variability and change 

None

Other indicators for this issue: