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The Lake Eyre Basin

The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

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Page 1: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

TheLake Eyre

Basin

Page 2: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Lake Eyre Basin

Great Artesian Basin

Page 3: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Lake Eyre Basin

1.2 million square kilometres

Kati Thanda-Lake Eyre - one of the larger

terminal lakes in the world

among the last major free-flowing rivers in

the world

Dia

man

tina

Coo

per

Georgina

Page 4: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

LEB Landscapes – bioregions

Page 5: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Mitchell Grass

Downs

Page 6: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Channel Country

Page 7: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Simpson-Strzelecki

Dune Fields

Page 8: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Stony Plains

Page 9: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Macdonnell Ranges

Page 10: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Salt Lakes

Page 11: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Significant places

● Channel country

Permanent waterholes

Mound Springs

Ramsar wetlands –

Coongie Lakes

Aboriginal heritage sites

Page 12: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

High flow variability F

low

var

iab

ilit

y

Lake Eyre Basin rivers

Page 13: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

High flows ….

Page 14: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Low flows ….

Page 15: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Boom ….

Page 16: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

…. bust

Page 17: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Human footprint Towns

Geothermal energy

Oil, gas and mining

Grazing & agriculture

Tourism

Page 18: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Unsustainable practices –

Murray-Darling Basin

Chowilla

Gwydir wetlands

●Coorong

Macquarie Marshes

Page 19: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

… the Lake Eyre Basin is remarkably unscathed

Page 20: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Emerging threats

Changes to flow Vegetation clearing

Weeds

Feral pigs

Feral animals

Page 21: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Critical vulnerability….. Changes to flow

• major dams

• flow diversion

• levee banks & floodplain harvesting

• on-farm storages

Page 22: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Looking after this resource ….

Page 23: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

• Oct 2000

• Effective June 2001

• Northern Territory 2004

• reviewed June 2007

Page 24: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Catalysts for sustainability

• Proposal for World Heritage

listing (1993)

• Currareva cotton application (1995)

Page 25: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

→ Very strong community response

Supported by State and Federal governments

• Lake Eyre Catchment Protection Group

• Lake Eyre Basin Coordinating Group

• Coopers Creek and Georgina-Diamantina Catchment Committees

Page 26: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

The Lake Eyre Basin Process

• Grass-roots/bottom-up – community initiated

• Community involvement remains strong

Page 27: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Current arrangements –Agreement

Scientific

Community

Government Agencies – Water and

Environment

Intergovernmental Agreement

Ministerial Forum

Page 28: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Lake Eyre Basin Agreement

…. is about balance

Socio-economic viability

Ecological sustainability

Page 29: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

Key messages

1. The Lake Eyre Basin is unique in the world.

2. The Basin is in good condition, but vulnerable to increasing pressures

3. A genuine basin-wide approach is essential

4. Working towards real ecological and social sustainability

5. Water is the key

Page 30: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin

…. we need long-term

Government and Community

commitment

Page 31: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin
Page 32: The Lake Eyre Basin. Lake Eyre Basin Great Artesian Basin