Abstract
If the goal for managing rangelands is to achieve a balance between production and conservation, then monitoring is essential to detect change and apply corrective action. In some range-land areas of northern Australia, monitoring has detected a tilt in the production-conservation balance towards excessive production. How big is this imbalance? Can it shift back? Robust monitoring is needed to answer these questions. The aim is to know what to monitor, and where. For example, to detect changes caused by livestock on rangeland forage production and soil erosion, indicators linking grazing disturbances to landscape function are needed, that is, indicators that signal how well landscapes are capturing, concentrating, and utilizing scarce water, nutrient, and organic resources. Studies in Australia and the USA document that simple vegetation and soil patch attributes can be measured as indicators of the 'state of health' of landscape function. For example, field and remote sensing-based grazing studies in Australia document that landscapes with a high cover of perennial plant patches function effectively to capture runoff water and nutrients in sediments, whereas landscapes with a low cover of these patches do not — they are dysfunctional — as indicated by large patches of bare soil. Aerial videography is proving to be a robust technique for measuring indicators of landscape function such as small patches of vegetation and the extent of bare soil. These indicators typically have a sigmoidal response to grazing impacts. We illustrate that if these indicators are measured on monitoring sites established near the sigmoidal 'point of inflection’ then small changes in these indicators can be detected.
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Anderson, V.J. and Hodgkinson, K.C.: 1997, ‘Grass-mediated capture of resource flows and the maintenance of banded mulga in a semi-arid woodland’ Aust. J. Botany 45331-342.
Andrew, M.H.: 1988, ‘Grazing impact in relation to livestock watering points’ Trends Ecol. & Evol. 3, 336–339.
Andrew, M.H. and Lange, R.T.: 1986, ‘Development of a new piosphere in arid chenopod shrubland grazed by sheep. 1. Changes to the soil surface’ Aust. J. Ecol. 11411–24.
Ash, A.J., (ed.).: 1996, The Future of Tropical Savannas: An Australian Perspective, CSIRO Publishing, Melbourne, Australia.
Ash, A.J., Bellamy, J.A. and Stockwell, T.G.H.: 1994, ‘State and transition models for rangelands. 4. Application of state and transition models to rangelands in northern Australia’ Trop. Grassl. 28223–228.
Bastin, G.N., Tynan, R.W. and Chewings, V.H.: 1998, ‘Implementing satellite-based grazing gradient methods for rangeland assessment in South Australia’ Rangel. J. 2061–76.
Bonham, C.D.: 1989, Measurements for Terrestrial Vegetation, Wiley & Sons, New York.
Brown, J., Stafford Smith, M. and Bastin, G.: 1998, ‘Monitoring for resource management’ in: Monitoring grazing lands in northern Australia, Tothill, J. and Partridge, I. (eds.), Tropical Grassland Society Occasional Publication No. 9, Brisbane, Australia, pp. 57–66.
Carter, J., Brook, K., Day, K., Howden, M. and McKeon, G.: 1998, What attributes to monitor, in: Monitoring grazing lands in northern Australia, Tothill, J. and Partridge, I. (eds.), Tropical Grassland Society Occasional Publication No. 9, Brisbane, Australia, pp. 27–43.
DeSoyza, A.G., Whitford,W.G. and Herrick, J.E.: 1997, ‘Sensitivity testing of indicators of ecosystem health’ Ecosyst. Health 3, 44–53.
Dyer, R., Cobiac, M., Cafe, L. and Stockwell, T.: 1997, Developing sustainable pasture management practices for the semi-arid tropics of the Northern Territory, Final Report (NTA022), submitted to Meat Research Council, by NT Department of Primary Industry and Fisheries, Katherine, Northern Territory, Australia.
Eve, M.D., Whitford,W.G. and Havstad, K.M.: 1999, ‘Applying satellite imagery to triage assessment of ecosystem health’ Environ. Monit. & Assess. 54205–27.
Foran, B.D., Bastin, G. and Hill, B.: 1985, ‘The pasture dynamics and management of two rangeland communities in theVictoria River District of the Northern Territory’ Aust. Rangel. J. 7, 107–113.
Graetz, R.D. and Ludwig, J.A.: 1978, ‘A method for the analysis of piosphere data applicable to range assessment’ Aust. Rangel. J. 1, 126–136.
Hodder, R.M. and Low, W.A.: 1978, ‘Grazing distribution of free-ranging cattle at three sites in the Alice Springs district, central Australia’ Aust. Rangel. J. 1, 95–105.
Johns, G.G., Tongway, D.J. and Pickup, G.: 1984, ‘Land and water processes’ in: Management of Australia's rangelands, Harrington, G.N., Wilson, A.D., and Young, M.D. (eds.), CSIRO Publishing, Melbourne, Australia, pp. 25–40.
Lange, R.T.: 1969, ‘The piosphere, sheep track and dung patterns’ J. Range Manage. 22396–400.
Ludwig, J.A. and Freudenberger, D.O.: 1997, ‘Towards a sustainable future for rangelands’ in: Landscape ecology, function and management: principles from Australia's rangelands, Ludwig, J.A., Tongway, D.J., Freudenberger, D.O., Noble, J.C. and Hodgkinson, K.C. (eds.), CSIRO Publishing, Melbourne, Australia, pp. 121–131.
Ludwig, J.A. and Tongway, D.J.: 1992, ‘Monitoring the condition of Australian arid lands: linked plant-soil indicators’ in: Ecological Indicators, vol. 1, McKenzie, D.H., Hyatt, D.E. and McDonald, V.J. (eds.), Elsevier Scientific, Essex), UK, pp. 765–772.
Ludwig, J.A. and Tongway, D.J.: 1997, ‘A landscape approach to rangeland ecology’ in: Landscape ecology, function and management: principles from Australia's rangelandsLudwig, J.A., Tongway, D.J., Freudenberger, D.O., Noble, J.C. and Hodgkinson, K.C. (eds.), CSIRO Publishing, Melbourne, Australia, pp. 1–12.
Ludwig, J.A., Eager, R.W., Williams, R.J. and Lowe, L.M.: 1999a, ‘Declines in vegetation patches, plant diversity, and grasshopper diversity near cattle watering points in the Victoria River District, northern Australia’ Rangel. J. 21135–149.
Ludwig, J.A., Tongway, D.J., Eager, R.W., Williams, R.J. and Cook, G.D.: 1999b, ‘Fine-scale vegetation patches decline in size and cover with increasing rainfall in Australian savannas’ Landsc. Ecol. 14557–566.
Makin, J.: 1992, The Big Run: the story of Victoria River Downs Station, revised editionLansdowne, Sydney, Australia.
McIvor, J.G., Ash, A.J., and Cook, G.D.: 1995a, ‘Land condition in the tropical tallgrass pasture lands 1. Effects on herbage production’ Rangel. J. 1755–65.
McIvor, J.G., Williams, J. and Gardner, C.J.: 1995b, ‘Pasture management influences runoff and soil movement in the semi-arid tropics’ Aust. J. Exp. Agric. 3555–65.
Nash, M.S., Whitford, W.G., de Soyza, A.G., Van Zee, J.W. and Havstad, K.: 1999, ‘Livestock activity and Chihuahuan Desert annual plant communities: boundary analysis of disturbance gradients’ Ecol. Appl. 9, 814–823.
Pickup, G. and Chewings, V.H.: 1994, ‘A grazing gradient approach to land degradation assessment in arid areas from remotely-sensed data’ Intern. J. Remote Sens. 15597–617.
Pickup, G. and Nelson, D.J.: 1984, ‘Use of landsat radiance parameters to distinguish soil erosion, stability and deposition in arid central Australia’ Remote Sens. Environ. 16195–209.
Pickup, G., Bastin, G.N. and Chewings, V.H.: 1999, ‘Measuring rangeland vegetation with high resolution airborne videography in the blue-near infrared spectral region’ Intern. J. Remote Sens. 20in press.
Pickup,G., Bastin,G.N., Chewings,V.H. and Pearce,G.: 1995, ‘Correction and classification procedures for assessing rangeland vegetation cover with airborne video data’ in: Proceedings: 15th Biennial Workshop on Videography and Colour Photography in Resource Assessment, Indiana, 1–3 May 1995Haute, Terre (ed.), Published by American Society for Photogrammetry and Remote Sensing, Bethesda, MD, pp. 305–314.
Pickup, G., Chewings, V.H. and Nelson, D.J.: 1993, ‘Estimating changes in vegetation cover over time in arid rangelands using Landsat MSS data’ Remote Sens. Environ. 43243–263.
Pickup, G., Chewings, V.H. and Pearce, G.: 1998, ‘Procedures for correcting high resolution airborne video imagery’ Intern. J. Remote Sens. 191647–1662.
Scanlan, J.: 1998, ‘Why monitor grazing lands?’ in: Monitoring grazing lands in northern AustraliaTothill, J. and Partridge, I. (eds.), Tropical Grassland Society Occasional Publication No. 9, Brisbane, Australia, pp. 17–26.
SPSS: 1998, SigmaPlot 5.0 Programming Guide. SPSS Inc., Chicago.
Tanke, W.C. and Bonham, C.D.: 1985, Use of power curves to monitor range trend, J.Range Manage. 38, 428–431.
Tongway, D.J.: 1995, ‘Monitoring soil productive potential’ Environ. Monit. & Assess. 37303–318.
Tongway, D.J. and Ludwig, J.A.: 1997, ‘The nature of landscape dysfunction in rangelands’ in Landscape ecology, function and management: principles from Australia's rangelandsLudwig, J.A., Tongway, D.J., Freudenberger, D.O., Noble, J.C. and Hodgkinson, K.C. (eds.), CSIRO Publishing, Melbourne, Australia. pp. 49–61.
Whitford,W.G., de Soyza, A.G., Van Zee, J.W., Herrick, J.E. and Havstad, K.M.: 1998, ‘Vegetation, soil, and animal indicators of rangeland health’ Environ. Monit. & Assess. 51179–200.
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Ludwig, J.A., Bastin, G.N., Eager, R.W. et al. Monitoring Australian Rangeland Sites Using Landscape Function Indicators and Ground- and Remote-Based Techniques. Environ Monit Assess 64, 167–178 (2000). https://doi.org/10.1023/A:1006475825546
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DOI: https://doi.org/10.1023/A:1006475825546