Economic Tools to Tackle Dryland Salinity in Western Australia PDF Download
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Author: David J. Pannell
Publisher:
ISBN: 9780730745037
Category : Salinity
Languages : en
Pages : 38
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Book Description
Author: David J. Pannell
Publisher:
ISBN: 9780730745037
Category : Salinity
Languages : en
Pages : 38
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Book Description
Author: Tennille Graham
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 249
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Book Description
[Truncated abstract] The salinisation of agricultural land, urban infrastructure and natural habitat is a serious and increasing problem in southern Australia. Government funding has been allocated to the problem to attempt to reduce substantial costs associated with degradation of agricultural and non-agricultural assets. Nevertheless, Government funding has been small relative to the size of the problem and therefore expenditure needs to be carefully targeted to interventions that will achieve the greatest net benefits. For intervention to be justified, the level of salinity resulting from private landholder decisions must exceed the level that is optimal from the point of view of society as a whole, and the costs of government intervention must be less than the benefits gained by society. This study aims to identify situations when government intervention is justified to manage dryland salinity that threatens to affect road infrastructure (a public asset). A key gap in the environmental economics literature is research that considers dryland salinity as a pollution that has off-site impacts on public assets. This research developed two hydrological/economic models to achieve this objective. The first was a simple economic model representing external costs from dryland salinity. This model was used to identify those variables that have the biggest impact on the net-benefits possible from government intervention. The second model was a combined hydro/economic model that represents the external costs from dryland salinity on road infrastructure. The hydrological component of the model applied the method of metamodelling to simplify a complex, simulation model to equations that could be easily included in the economic model. The key variables that have the biggest impact on net-benefits of dryland salinity mitigation were the value of the off-site asset and the time lag before the onset of dryland salinity in the absence of intervention. ... In the case study of dryland salinity management in the Date Creek subcatchment of Western Australia, the economics of vegetation-based and engineering strategies were investigated for road infrastructure. In general, the engineering strategies were more economically beneficial than vegetation-based strategies. In the case-study catchment, the cost of dryland salinity affecting roads was low relative to the cost to agricultural land. Nevertheless, some additional change in land management to reduce impacts on roads (beyond the changes justified by agricultural land alone) was found to be optimal in some cases. Reinforcing the results from the simple model, a key factor influencing the economics of dryland salinity management was the urgency of the problem. If costs from dryland salinity were not expected to occur until 30 years or more, the optimal response in the short-term was to do nothing. Overall, the study highlights the need for governments to undertake comprehensive and case-specific analysis before committing resources to the management of dryland salinity affecting roads. There were many scenarios in the modelling analysis where the benefits of interventions would not be sufficient to justify action.
Author: J. Gomboso
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
Author: CSIRO
Publisher: CSIRO PUBLISHING
ISBN: 9780643066113
Category : Business & Economics
Languages : en
Pages : 40
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Book Description
Dryland salinity is becoming a growing problem for Australia, as it impacts upon agriculture, water quality, infrastructure and the environment. In the context of developing a national policy for natural resource management, this report contains the outcomes of the review of the current national policy framework on dryland salinity and outlines new strategic directions. This policy framework recognises that dryland salinity should be addressed in an integrated manner with other land, water and vegetation degradation issues. Rather than in isolation, and at the appropriate catchment and regional scale. While this report can provide a broad approach to addressing dryland salinity, it does not suggest that the dryland salinity problem can be entirely solved or that we have all the knowledge required to develop solutions to the problem. The directions outlined in this document are the result of a fruitful collaboration across jurisdictions, acknowledging that governments and industry must work together in partnership with communities to ensure that the future management of dryland salinity achieves significant positive change.
Author: Jeanette Gomboso
Publisher:
ISBN:
Category : Soils, Salts in
Languages : en
Pages : 1206
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Book Description
Author: John Barton
Publisher:
ISBN:
Category : Soil salinization
Languages : en
Pages : 242
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Book Description
Author: J. Gomboso
Publisher:
ISBN:
Category : Soils, Salts in
Languages : en
Pages : 30
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Book Description
Author: Western Australia. State Salinity Council. Research and Development Technical Committee
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 25
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Book Description
Author: Michele Brigitte John
Publisher:
ISBN:
Category : Farm management
Languages : en
Pages : 620
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Book Description
Author: Quentin Beresford
Publisher: ISBS
ISBN: 9781920694166
Category : Nature
Languages : en
Pages : 376
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Book Description
Based on extensive research this book is essential reading for anyone who is concerned about one of Australia's most serious environmental problems. New edition with an epilogue.
