Abstract
The Great Barrier Reef (GBR) off Australia’s northeast coast is one of the natural wonders of the world. As a consequence it has high value, not only for biodiversity, but also for tourists who come to see the GBR and the biodiversity associated with it, bringing in over A$3.5B per annum to the Australian economy. However, there are a number of natural and anthropogenic factors that are threatening the health of the reef ecosystems. One of the major anthropogenic factors is the impact of sediments and nutrients that run off the land, via the rivers, into the lagoon of the reef. Extensive beef production is one of the major land uses of the GBR catchment, and brings in over $1B to the national economy annually and employs nearly 9,000 people, many of them in rural communities. Over 70% of terrestrial sediments and nutrients deposited in the GBR lagoon affecting the health of vulnerable reef ecosystems originate from the extensive grazing lands of Queensland’s interior. Recent research indicates that the quantity of sediments and nutrients lost from these grazing lands is strongly dependent upon grazing management practices; grazing leads to degradation of soil and vegetation resources, reduced infiltration and vegetation production. This has led to a growing concern amongst the Australian public about the environmental performance of the beef industry and increasing pressures on graziers to change their management practices to decrease the off-farm impacts. Given the constraints within the system improvements in water quality draining into the GBR lagoon can best be achieved by demonstrating the productivity and economic benefits of science-based improved grazing management practices for graziers, leading to “AllWin” outcomes for all concerned. In the longer term, only when the range of stakeholders involved approach catchments as linked biophysical, social and economic systems, will truly integrated adaptive catchment management be applied to the GBR.
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References
Access Economics, 2005. Measuring the economic & financial value of the Great Barrier Reef Marine Park. Report for the Great Barrier Reef Park Management Authority.
Anon, 2003. Reef water quality protection plan; for catchments adjacent to the Great Barrier Reef World Heritage Area. Queensland Department of the Premier and Cabinet, Brisbane, Australia. http://www.thepremier.qld.gov.au/library/pdf/rwqpp.pdf.
Ash, A., J. Corfield & T. Ksiksi, 2001. The Ecograze Project—Developing Guidelines to Better Manage Grazing Country. CSIRO, Townsville, Australia.
Boyd, C. E., 2003. Guidelines for aquaculture effluent management at the farm-level. Aquaculture 226: 101–112.
Brodie, J., L. A. McKergow, I. P. Prosser, M. Furnas, A. O. Hughes & H. Hunter, 2003. Sources of sediment and nutrient exports to the Great barrier Reef World Heritage Area. Australian Centre for Marine and Tropical Freshwater Research Report No. 03/11, James Cook University, Townsville.
Christensen, S. M. & C. Rodgers, 2004. Central Queensland Strategy for Sustainability-2004 and Beyond. Fitzroy Basin Association, Rockhampton, Australia.
Craik, W., 1992. Great Barrier Reef Marine Park: its establishment, development and current status. Marine Pollution Bulletin 25: 122–133.
Fabricius, K. E., 2005. Effects of terrestrial runoff on the ecology of corals and coral reefs: review and synthesis. Marine Pollution Bulletin 50: 125–146.
Fabricius, K. E. & G. De’ath, 2004. Identifying ecological change and its causes: A case study on coral reefs. Ecological Applications 14: 1448–1465.
Fabricius K., G. De’ath, L. McCook, E. Turak & D. M. Williams, 2005. Changes in algal, coral and fish assemblages along water quality gradients on the inshore Great Barrier Reef. Marine Pollution Bulletin 51: 384–398.
Finlayson, C. M. & G. P. Lukacs, 2001. Status of wetlands in northern Australia. In N. Dawson, J. Brodie, G. Rayment & C. Porter (eds), Protecting the Values of Rivers, Wetlands and the Reef. Conference abstracts, papers, posters and presentations. Townsville Australia, November 2001, Department of Natural Resources and Mines, Brisbane, Australia.
Furnas, M., 2003. Catchments and Corals: Terrestrial Runoff to the Great Barrier Reef. Australian Institute of Marine Science and CRC Reef Research Centre, Townsville, Australia.
Gilbert, M., J. Waterhouse, M. Ramsay & J. Brodie, 2003. Population and Major Land Use Change in the Great Barrier Reef Catchment Area: Spatial and Temporal Trends. Research Publication Series. Great Barrier Reef Marine Park Authority, Townsville, Australia.
Ludwig, J. A., B. P. Wilcox, D. D. Breshears, D. J. Tongway & A. C. Imeson, 2005. Vegetation patches and runoff-erosion as interacting ecohydrological processes in semiarid landscapes. Ecology 86: 288–297.
McIntosh, P. C., A. J. Ash & M. S. Smith, 2005. From oceans to farms: the value of a novel statistical climate forecast for agricultural management. Journal of Climate 18: 4287–4302.
McIvor, J. G. & J. C. Scanlan, 1994. State and transition models for rangelands. 8. A state and transition model for the northern speargrass zone. Tropical Grasslands 28: 256–259.
Neldner, J., 2006. Why is vegetation condition important to government? A case study from Queensland. Ecological Management & Restoration 7: S5–S7.
Northup, B. K., J. R. Brown & A. J. Ash, 2005. Grazing impacts on spatial distribution of soil and herbaceous characteristics in an Australian tropical woodland. Agroforestry Systems 65: 137–150.
O’Reagain, P. J., J. Brodie, G. Fraser, J. J. Bushell, C. H. Holloway, J. W. Faithful & D. Haynes, 2005. Nutrient loss and water quality under extensive grazing in the upper Burdekin river catchment, North Queensland. Marine Pollution Bulletin 51: 37–50.
Productivity Commission, 2003. Industries, land use and water quality in the Great Barrier Reef Catchment. Research Report, Australian Government Productivity Commission, Canberra, Australia.
Rietkerk, M. & J. van de Koppel, 1997. Alternate stable states and threshold effects in semi-arid grazing systems. Oikos 79: 69–76.
Roth, C. H., I. P. Prosser, D. A., Post, J. E. Gross & M. J. Webb, 2003. Reducing Sediment Export from the Burdekin Catchment. CSIRO Land & Water, NAP3.224, Burdekin Dry Tropics Board, Townsville, Australia.
Sammut, J., I. White & M. D. Melville, 1996. Acidification of an estuarine tributary in eastern Australia due to drainage of acid sulfate soils. Marine and Freshwater Research 47: 669–684.
Wachenfeld, D. R., J. K. Oliver & J. I. Morrisey, 1998. State of the Great Barrier Reef World Heritage Area 1998. Great Barrier Reef Marine Park Authority, Townsville, Australia.
Acknowledgements
This review is based on the work of CSIRO Water for a Healthy Country Flagship Program: GBR Node. I would like to thank the organisers (particularly Herbert Prins) of the Open Science Meeting held in Yogyakarta, Indonesia on the 27th September 2005 for their invitation to speak at the conference and for the Netherlands Royal Academy of Science for paying for my travel and accommodation. I would also like to thank two anonymous referees for their valuable comments on an earlier version of the manuscript.
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Gordon, I.J. Linking land to ocean: feedbacks in the management of socio-ecological systems in the Great Barrier Reef catchments. Hydrobiologia 591, 25–33 (2007). https://doi.org/10.1007/s10750-007-0781-8
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DOI: https://doi.org/10.1007/s10750-007-0781-8