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Landclearing

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Ord River

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Broad scale clearing for agriculture remains Australia's greatest threat to biodiversity. It also contributes greatly to salinity, other soil and water degradation problems and greenhouse gas emissions.

Cockburn Range near Kununurra
Cockburn Range near Kununurra, targetted for clearing

Until recently temperate and sub-tropical woodlands have been the main ecosystems targeted, particularly in the southern states and Queensland. However, northern Australian woodlands are now facing rapidly increasing clearing and associated problems with parts of the agricultural sector targeting Northern Australia for 'greenfields development opportunities'.

Several massive schemes are in the early stages of development, while existing schemes are being expanded. The long term risk is that the Top End and the Kimberley will repeat the overclearing and irrigation problems of southern Australia, with consequent massive loss of biodiversity and soil and water degradation.

One area being targeted for such development is the Ord River region. Situated near Kununurra, the Ord River has a catchment which spans the NT and WA borders. The catchment falls predominantly within the Victoria-Bonaparte bioregion and is the traditional land of the Miriuwung and Gajerrong people.

The Ord has a history of exploitation, since the 1870s there has been pastoral interest in the region with the first herds of cattle arriving in the early 1880s. Significant land degradation occurred in the Ord Catchment as a result of overstocking. Ord Stage 1 began in the early 1960s, and was the first step of a long-term 'vision' for the agricultural development of the area. The Diversion Dam was completed in 1963, however the subsequent construction of the Ord River Dam further up the Ord River created Lake Argyle. Lake Argyle is now the biggest permanent freshwater lake in Australia.

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Fourteen thousand hectares were cleared and levelled for agriculture, mainly for cotton although research failed to find suitably viable crops for the area. The cotton industry had big hopes for the region in the late 1960s and early 1970s but the industry collapsed in the mid 70s. The collapse was due to several bad seasons of intensive insect attack from the Heliothis moth and other species, the subsequent high level use of pesticides which were very costly, the end of the Commonwealth cotton bounty program which provided subsidies to growers, and extremely high freight costs.

It is likely that traces of DDT, dieldren and other toxic chemicals remain in the region. Recently the cotton industry has made a return to the region establishing trial crops of genetically modified cotton, over the last few years with variable success.

One of the major criticisms of Ord Stage 1 has been the complete lack of analysis of the environmental, social and economic impacts of the project. The irrigation channels in some parts of the area are filled with contaminated runoff. Signs warn residents and tourists not to fish or swim in the channels as they pose a health risk, yet the runoff from the paddocks seeps into the groundwater and has breached irrigation channels and flowed into the Ord river.

The area also has a significant weed problem, both Gamba and Mission grass, escapees from cattle pasture 'improvement' are rife. It is impossible to estimate the full scale of the impacts of the developments in the area. No baseline data from before the damming of the Ord exists. It appears the same mistake is about to made again, as plans to develop Ord Stage 2 start to gain momentum.

Ord Stage 2 will comprise an area of approximately 64,000 hectares of irrigated agricultural land, about one third of which is within the NT. The area has been under pastoral lease until now and is subject to various Native Title claims by the Miriuwung and Gajerrong people. This area is divided into three sections known as: M2, Green Swamp and Mantinea Flats. There are three companies which hold the leases to these sections.

The co-proponents for M2 are Wesfarmers Ltf and Marubeni Corporation. They want to clear 33,500 hectares of land for agricultural production and irrigation channels, irrigating the area with water from Lake Argyle. The proposed project area spans the NT and WA borders north-east of Kununurra. About 27,000 hectares of the development would be for sugarcane production (initially) and 3,500 hectares would be sold to independent farmers to grow other crops.

On the face of it, the M2 development involves nearly a tripling of the amount of land available for agriculture in the region, by clearing and flattening and irrigating farms via a system of channels. However on another level the project represents a very deliberate effort to 'open up new country' for more intensive use, ie. the project is a very large real estate development. This has major implications for Native Title- the Mirauwung/Gajerrong Traditonal Owners have been involved in court cases over the past couple of years to determine their Native Title rights to areas in Keep River National Park and around Kununurra.

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In 2000 the M2 development was assessed by an Environmental Impact Assessment (EIA). ECNT made a submission to this process and raised a number of concerns relating to the project. Some of these follow and would apply to any development proposals in the Ord region:

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Native vegetation clearance - experience in the Murray-Darling Basin (and elsewhere) has shown the true costs of clearing native vegetation. We know that habitat loss is the single greatest cause of biodiversity loss and extinction. Broadscale clearing of 33,500 hectares would have massive, irreversible environmental impacts;

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Impacts on Groundwater - Irrigation water would seep through to the groundwater, polluting groundwater with agricultural chemicals and raising the water table. Ord Stage 1 has seen the groundwater table rise to two metres below ground level requiring dewatering bores to 'manage' the problem;

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Water allocation - While water allocation is not addressed in the EIS (water allocation in Western Australia is conducted by a separate process through the Water and Rivers Commission), the increased demand for irrigation water that would accompany Ord Stage Two is of great concern. The Waters and Rivers Commission submitted to the WA Government a 'Draft Interim Water Allocation Plan'.

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This plan essentially permits the use of a certain amount of water for irrigation purposes. The WA Environment Protection Authority has condemned the water allocation plan as it fails to assess environmental values of the river and to consider the flows required for river 'users' ie aquatic and terrestrial plants, animals and organisms. Currently growers in the Ord Stage 1 area pay only $75 per hectare for water annually (plus a small service fee) - there is no limit to the amount of water that can be applied over that area. A revised interim water allocation plan providing for environmental flows is currently being developed and is likely to be released for public comment before the end of this year.

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Greenhouse gas emissions - The EIS claims that the project would actually reduce the level of carbon dioxide in the atmosphere. A large portion of the 33,500 hectares that would be cleared if this project proceeds is wetlands on the floodplain of the Keep River. Wetlands are carbon sinks, that is they are a net store of carbon so any clearing of wetlands results in the release of that stored carbon into the atmosphere. There is no consideration to this given in the EIS when greenhouse emissions are estimated. Further, the greenhouse gas implications of burning 27,000 hectares of sugar cane every year has not been assessed or even identified as a significant source of emissions.

In August 2000 the West Australian Environment Protection Authority advised the Minister for Environment and Heritage to approve the clearing of 33,500 hectares of woodlands for the M2 project to proceed. The EPA made this recommendation in the same week that the Commonwealth announced a $500 million assistance package for Queensland cane farmers. The global sugar market is saturated- it does not make sense to approve the destruction of native vegetation to plant a barely marginal crop. ECNT appealed the EPA's advice - our appeal is yet to be heard.

In 2001 the future of the Ord Stage 2 (M2) project is unclear.

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A further recommendation from the EPA to the Minister was made in June 2001. The Minister was advised to approve the project on the basis that the impacts were acceptable and could be satisfactorily managed by the proponents. ECNT lodged another appeal about this recommendation - our key concerns include:

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Missing work and insufficient information - Major pieces of work and information are missing from the assessment process to date. The Aboriginal Socio-Economic Impact Assessment and detailed ethnographical and archaeological studies have not been undertaken. There is insufficient information on which to make a decision that the impacts of the proposal can be satisfactorily managed by prescribing various conditions.

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Management of 'conservation area' - The tenure of the buffer area has not been determined nor has an 'accepted' management structure been decided upon (ie.who pays for what, who can sit on the board and make management decisions etc). It is also unclear how funding for ongoing management of the buffer areas will be found and from whom. The final project design has also not yet been completed.

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Scope of the assessment - The assessment fails to consider the impacts of cultivating different crops (ie.cotton instead of sugarcane) and the changes that would be required to the management program, plans and actions.

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Declaration of reserves - New reserves are identified if the proposal goes ahead. The declaration of new reserves cannot be contingent on the development proceeding - areas worthy of protection should be protected.

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Lessons from Ord Stage 1 - The WA Government has not undertaken a comprehensive and thorough analysis of ORIA Stage 1 to identify and quantify existing problems. In failing to undertake such an assessment there is a high likelihood of repetition of mistakes from the past.

Our second appeal is also yet to be determined. The project still lacks some key approvals while economically the project looks increasingly unviable.

Ord River
Existing agricultural development- Ord Stage 1

Clearly, the problems associated with expanding irrigated agriculture in northern Australia are many and varied and this development is just one example of the projects being considered. ECNT continues to work with other local groups, including the Kununurra group; Care of the Ord Valley Environment (COVE), Environs Kimberley in Broome and the Kimberley Land Council in response to the Ord Stage 2 proposal. Work is also ongoing, with these and other groups, on similar issues in different parts of Northern Australia.

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MORE INFORMATION

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If you would like more information or wish to get involved in
a campaign to protect the Northern Woodlands please contact us.

The Environment Centre NT
08 8981 1984
ecnt@octa4.net.au

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See also: Landclearing Media Releases

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The Environment Centre of the Northern Territory
3/98 Woods St, Darwin » Postal Address: GPO Box 2120, Darwin 0801 NT
Phone: 08 8981 1984 » Fax: 08 8941 0387 » E-mail: ecnt@octa4.net.au