Remotely-sensed analysis of ground-cover change in Queensland’s rangelands, 1988–2005
G. Bastin A C , R. Denham B , P. Scarth B , A. Sparrow A and V. Chewings A
+ Author Affiliations
- Author Affiliations
A CSIRO Ecosystem Sciences, PO Box 2111, Alice Springs, NT 0871, Australia.
B Queensland Department of Science, Information Technology, Innovation and the Arts, GPO Box 2454, Brisbane, Qld 4001, Australia.
C Corresponding author. Email: Gary.Bastin@csiro.au
The Rangeland Journal 36(2) 191-204 https://doi.org/10.1071/RJ13127
Submitted: 18 December 2013 Accepted: 3 March 2014 Published: 3 April 2014
Abstract
A dynamic reference-cover method and remotely-sensed ground cover were used to determine the change in the state of ~640 000 km2 of rangelands in Queensland at a sub-bioregional scale between 1988 and 2005. The method is based on persistence of ground cover in years of lower rainfall and objectively separates grazing effects on ground cover from those due to inter-annual variation in rainfall. The method is applied only to areas where trees and shrubs were not cleared. An indicator of rangeland state was derived, at Landsat-TM pixel resolution, by subtracting automatically-calculated reference ground cover from actual ground cover and then spatially averaging these deviations across the area of each sub-bioregion. Landscape heterogeneity may affect reference cover but, because it is stable over time, change in mean cover deficit between sequences of dry years reliably indicates change due to grazing. All 34 sub-regions analysed had similar or increased levels of seasonally-adjusted ground cover at the end of the analysis period, which was either 2003 or 2005. Allowing for possible landscape heterogeneity effects on assessed condition, the Einasleigh Uplands bioregion was comparatively in a better state and those analysed parts of the Mulga Lands bioregion in poorer state at the first assessment in 1988. Most sub-regions of the Cape York Peninsula, Brigalow Belt North, Desert Uplands, Gulf Plains and Mitchell Grass Downs bioregions lay between these two end-states. Simulated levels of pasture utilisation based on modelled pasture growth and statistically-based grazing pressure supported the results of this regional assessment of land condition. The dynamic reference-cover method will allow the Queensland Government to monitor future grazing effects on rangeland ground cover between sequences of drier years – quantitatively and efficiently across the entire state. The method can potentially be adapted to other rangeland jurisdictions where a suitable multi-temporal database of remotely sensed ground cover exists. The results from further analyses of remotely sensed ground cover will be reported through the Australian Collaborative Rangelands Information System.
Additional keywords: bioregion, ground-cover dynamics, heterogeneity, Landsat-TM, land condition, state, woody cover.
References
Abbott, I., and Le Maitre, D. (2010). Monitoring the impact of climate change on biodiversity: the challenge of mega-diverse Mediterranean climate ecosystems. Austral Ecology 35, 406–422.| Monitoring the impact of climate change on biodiversity: the challenge of mega-diverse Mediterranean climate ecosystems.Crossref | GoogleScholarGoogle Scholar |
Ash, A. J., McIvor, J. G., Mott, J. J., and Andrew, M. H. (1997). Building grass castles: integrating ecology and management of Australia’s tropical tallgrass rangelands. The Rangeland Journal 19, 123–144.
| Building grass castles: integrating ecology and management of Australia’s tropical tallgrass rangelands.Crossref | GoogleScholarGoogle Scholar |
Ash, A. J., Corfield, J. P., McIvor, J. G., and Ksiksi, T. S. (2011). Grazing management in tropical savannas: utilization and rest strategies to manipulate rangeland condition. Rangeland Ecology and Management 64, 223–239.
| Grazing management in tropical savannas: utilization and rest strategies to manipulate rangeland condition.Crossref | GoogleScholarGoogle Scholar |
Bartley, R., Corfield, J. P., Abbott, B. N., Hawdon, A. A., Wilkinson, S. N., and Nelson, B. (2010a). Impacts of improved grazing land management on sediment yields, Part 1: hillslope processes. Journal of Hydrology 389, 237–248.
| Impacts of improved grazing land management on sediment yields, Part 1: hillslope processes.Crossref | GoogleScholarGoogle Scholar |
Bartley, R., Wilkinson, S. N., Hawdon, A. A., Abbott, B. N., and Post, D. A. (2010b). Impacts of improved grazing land management on sediment yields, Part 2: catchment response. Journal of Hydrology 389, 249–259.
| Impacts of improved grazing land management on sediment yields, Part 2: catchment response.Crossref | GoogleScholarGoogle Scholar |
Bastin, G., and the ACRIS Management Committee (2008). Rangelands 2008 – taking the pulse. Published on behalf of the ACRIS Management Committee by the National Land and Water Resources Audit, Canberra. Available at: www.environment.gov.au/node/20682 (accessed 15 November 2013).
Bastin, G. N., Pickup, G., Chewings, V. H., and Pearce, G. (1993). Land degradation assessment in central Australia using a grazing gradient method. The Rangeland Journal 15, 190–216.
| Land degradation assessment in central Australia using a grazing gradient method.Crossref | GoogleScholarGoogle Scholar |
Bastin, G. N., Ludwig, J. A., Eager, R. W., Liedloff, A. C., Andison, R. T., and Cobiac, M. D. (2003). Vegetation changes in a semi-arid tropical savanna, northern Australia: 1973–2002. The Rangeland Journal 25, 3–19.
| Vegetation changes in a semi-arid tropical savanna, northern Australia: 1973–2002.Crossref | GoogleScholarGoogle Scholar |
Bastin, G. N., Stafford Smith, D. M., Watson, I. W., and Fisher, A. (2009). The Australian Collaborative Rangelands Information System: preparing for a climate of change. The Rangeland Journal 31, 111–125.
| The Australian Collaborative Rangelands Information System: preparing for a climate of change.Crossref | GoogleScholarGoogle Scholar |
Bastin, G., Scarth, P., Chewings, V., Sparrow, A., Denham, R., Schmidt, M., O’Reagain, P., Shepherd, R., and Abbott, B. (2012). Separating grazing and rainfall effects at regional scale using remote sensing imagery: a dynamic reference-cover method. Remote Sensing of Environment 121, 443–457.
| Separating grazing and rainfall effects at regional scale using remote sensing imagery: a dynamic reference-cover method.Crossref | GoogleScholarGoogle Scholar |
Bastin, G., Hodgins, G., Scarth, P., Gill, T., and Taylor, A. (2014). Updated reporting of woody vegetation clearing in the Queensland and NSW rangelands: 1988–2010. Australian Collaborative Rangelands Information System. Available at: www.environment.gov.au/topics/land/rangelands/australian-collaborative-rangelands-information-system-acris (accessed 18 March 2014).
Bray, S. G., and Golden, R. (2009). Scenario analysis of alternative vegetation management options on the greenhouse gas budget of two grazing businesses in north-eastern Australia. The Rangeland Journal 31, 137–142.
| Scenario analysis of alternative vegetation management options on the greenhouse gas budget of two grazing businesses in north-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Broadbent, J. (2007). If you can’t measure it, how can you manage it? Management and governance in higher education institutions. Public Money and Management 27, 193–198.
| If you can’t measure it, how can you manage it? Management and governance in higher education institutions.Crossref | GoogleScholarGoogle Scholar |
Burrows, W. H., Carter, S. O., Scanlan, S. C., and Anderson, E. R. (1990). Management of savannas for livestock production in north-east Australia: contrasts across the tree-grass continuum. Journal of Biogeography 17, 503–512.
| Management of savannas for livestock production in north-east Australia: contrasts across the tree-grass continuum.Crossref | GoogleScholarGoogle Scholar |
Burrows, W. H., Henry, B. K., Back, P. V., Hoffman, M. B., Tait, L. J., Anderson, E. R., Menke, N., Danaher, T., Carter, J. O., and McKeon, G. M. (2002). Growth and carbon stock change in eucalypt woodlands in north-east Australia: ecological and greenhouse sink implications. Global Change Biology 8, 769–784.
| Growth and carbon stock change in eucalypt woodlands in north-east Australia: ecological and greenhouse sink implications.Crossref | GoogleScholarGoogle Scholar |
Carter, J. O., Hall, W. B., Brook, K. D., McKeon, G. M., Day, K. A., and Paull, C. J. (2000). Aussie-GRASS: Australian grassland and rangeland assessment by spatial simulation. In: ‘Applications of Seasonal Climate Forecasting in Agricultural and Natural Ecosystems – the Australian Experience’. (Eds G. Hammer, N. Nicholls and C. Mitchell.) pp. 329–349. (Kluwer Academic Press: Dordrecht, The Netherlands.)
Christie, E. K. (1975). Physiological responses of semi-arid grasses. 3. Growth in relation to temperature and soil-water deficit. Australian Journal of Agricultural Research 26, 447–457.
| Physiological responses of semi-arid grasses. 3. Growth in relation to temperature and soil-water deficit.Crossref | GoogleScholarGoogle Scholar |
Danaher, T., Scarth, P., Armston, J., Collet, L., Kitchen, J., and Gillingham, S. (2010). Remote sensing of tree-grass systems: the eastern Australian woodlands. In: ‘Ecosystem Function in Savannas: Measurement and Modelling at Landscape to Global Scales’. (Eds M. J. Hill and N. P. Hanan.) pp. 175–193. (CRC Press: Boca Raton, FL.)
Eyre, T. J., Fisher, A., Hunt, L. P., and Kutt, A. S. (2011). Measure it to better manage it: a biodiversity monitoring framework for the Australian rangelands. The Rangeland Journal 33, 239–253.
| Measure it to better manage it: a biodiversity monitoring framework for the Australian rangelands.Crossref | GoogleScholarGoogle Scholar |
Felderhof, L., and Gillieson, D. (2006). Comparison of fire patterns and fire frequency in two tropical savanna bioregions. Austral Ecology 31, 736–746.
| Comparison of fire patterns and fire frequency in two tropical savanna bioregions.Crossref | GoogleScholarGoogle Scholar |
Fensham, R. J., Fairfax, R. J., and Archer, S. R. (2005). Rainfall, land use and woody vegetation cover change in semi-arid Australian savanna. Journal of Ecology 93, 596–606.
| Rainfall, land use and woody vegetation cover change in semi-arid Australian savanna.Crossref | GoogleScholarGoogle Scholar |
Fensham, R. J., Dwyer, J. M., Eyre, T. J., Fairfax, R. J., and Wang, J. (2012). The effect of clearing on plant composition in mulga (Acacia aneura) dry forest, Australia. Austral Ecology 37, 183–192.
| The effect of clearing on plant composition in mulga (Acacia aneura) dry forest, Australia.Crossref | GoogleScholarGoogle Scholar |
Friedel, M. H., Foran, B. D., and Stafford Smith, D. M. (1990). Where the creeks run dry or ten feet high: pastoral management in arid Australia. Proceedings of the Ecological Society of Australia 16, 185–194.
Griffin, G. F., and Friedel, M. H. (1985). Discontinuous change in central Australia: some implications of major ecological events for land management. Journal of Arid Environments 9, 63–80.
Harms, B. P., Dalal, R. C., and Cramp, A. P. (2005). Changes in soil carbon and soil nitrogen after tree clearing in the semi-arid rangelands of Queensland. Australian Journal of Botany 53, 639–650.
| Changes in soil carbon and soil nitrogen after tree clearing in the semi-arid rangelands of Queensland.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXht1GqsL7I&md5=ee152b7ff43975710ff312a08ed6e277CAS |
Hassett, R., Carter, J., and Henry, B. (2006). Rapid mobile data collection – a technique to monitor rangeland condition and provide quantitative and interpretive information for a range of applications. In: ‘The Cutting Edge. Conference Papers for the 14th Biennial Conference, Australian Rangeland Society’. Renmark, S. Aust., 3–7 September 2006. (Ed. P. Erkelenz.) pp. 202–205. (Australian Rangeland Society: Perth, WA.)
Hill, M. J., Roxburgh, S. H., Carter, J. O., and McKeon, G. M. (2005). Vegetation state change and consequent carbon dynamics in savanna woodlands of Australia in response to grazing, drought and fire: a scenario approach using 113 years of synthetic annual fire and grassland growth. Australian Journal of Botany 53, 715–739.
| Vegetation state change and consequent carbon dynamics in savanna woodlands of Australia in response to grazing, drought and fire: a scenario approach using 113 years of synthetic annual fire and grassland growth.Crossref | GoogleScholarGoogle Scholar |
Hill, M. J., Roxburgh, S. H., McKeon, G. M., Carter, J. O., and Barrett, D. J. (2006). Analysis of soil carbon outcomes from interaction between climate and grazing pressure in Australian rangelands using Range-ASSESS. Environmental Modelling & Software 21, 779–801.
| Analysis of soil carbon outcomes from interaction between climate and grazing pressure in Australian rangelands using Range-ASSESS.Crossref | GoogleScholarGoogle Scholar |
Jeffrey, S. J., Carter, J. O., Moodie, K. B., and Beswick, A. R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data. Environmental Modelling & Software 16, 309–330.
| Using spatial interpolation to construct a comprehensive archive of Australian climate data.Crossref | GoogleScholarGoogle Scholar |
Karfs, R. A., Abbott, B. N., Scarth, P. F., and Wallace, J. F. (2009). Land condition monitoring information for reef catchments: a new era. The Rangeland Journal 31, 69–86.
| Land condition monitoring information for reef catchments: a new era.Crossref | GoogleScholarGoogle Scholar |
Lonsdale, W. M., Braithwaite, R. W., Lane, A. M., and Farmer, J. (1998). Modelling the recovery of an annual savanna grass following a fire-induced crash. Australian Journal of Ecology 23, 509–513.
| Modelling the recovery of an annual savanna grass following a fire-induced crash.Crossref | GoogleScholarGoogle Scholar |
Lowenstein, L. (1996). Financial transparency and corporate governance: you manage what you measure. Columbia Law Review 96, 1335–1353.
| Financial transparency and corporate governance: you manage what you measure.Crossref | GoogleScholarGoogle Scholar |
Ludwig, J. A., and Tongway, D. J. (2002). Clearing savannas for use as rangelands in Queensland: altered landscapes and water-erosion processes. The Rangeland Journal 24, 83–95.
| Clearing savannas for use as rangelands in Queensland: altered landscapes and water-erosion processes.Crossref | GoogleScholarGoogle Scholar |
Ludwig, J. A., Tongway, D. J., Freudenberger, D. O., Noble, J. C., and Hodgkinson, K. C. (Eds) (1997). ‘Landscape Ecology, Function and Management: Principles from Australia’s Rangelands.’ (CSIRO Publishing: Melbourne.)
Ludwig, J. A., Bastin, G. N., Chewings, V. H., Eager, R. W., and Liedloff, A. C. (2007). Leakiness: a new index for monitoring the health of arid and semi-arid landscapes using remotely sensed vegetation cover and elevation data. Ecological Indicators 7, 442–454.
| Leakiness: a new index for monitoring the health of arid and semi-arid landscapes using remotely sensed vegetation cover and elevation data.Crossref | GoogleScholarGoogle Scholar |
McKeon, G. M., Hall, W. B., Henry, B. K., Stone, G. S., and Watson, I. W. (2004). ‘Pasture Degradation and Recovery in Australia’s Rangelands: Learning from History.’ (Queensland Department of Natural Resources, Mines and Energy: Brisbane.)
Mott, J. J. (1987). Patch grazing and degradation in native pastures of the tropical savannas in northern Australia. In: ‘Grazing-Lands Research at the Plant-Animal Interface’. (Eds F. P. Horn, J. Hodgson, J. J. Mott and R. W. Brougham.) pp. 153–161. (Winrock International: Morrilton.)
Nano, C. E. M., and Clarke, P. J. (2010). Woody-grass ratios in a grassy arid system are limited by multi-causal interactions of abiotic constraint, competition and fire. Oecologia 162, 719–732.
| Woody-grass ratios in a grassy arid system are limited by multi-causal interactions of abiotic constraint, competition and fire.Crossref | GoogleScholarGoogle Scholar |
National Committee on Soil and Terrain (2009). ‘Australian Soil and Land Survey Field Handbook.’ 3rd edn. (CSIRO Publishing: Melbourne.)
Pickup, G. (1985). The erosion cell – a geomorphic approach to landscape classification in range assessment. Australian Rangeland Journal 7, 114–121.
| The erosion cell – a geomorphic approach to landscape classification in range assessment.Crossref | GoogleScholarGoogle Scholar |
Pickup, G., and Chewings, V. H. (1994). A grazing gradient approach to land degradation assessment in arid areas from remotely-sensed data. International Journal of Remote Sensing 15, 597–617.
| A grazing gradient approach to land degradation assessment in arid areas from remotely-sensed data.Crossref | GoogleScholarGoogle Scholar |
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 Sensing of Environment 43, 243–263.
| Estimating changes in vegetation cover over time in arid rangelands using Landsat MSS data.Crossref | GoogleScholarGoogle Scholar |
Pickup, G., Bastin, G. N., and Chewings, V. H. (1994). Remote-sensing based condition assessment for non-equilibrium rangelands under large-scale commercial grazing. Ecological Applications 4, 497–517.
| Remote-sensing based condition assessment for non-equilibrium rangelands under large-scale commercial grazing.Crossref | GoogleScholarGoogle Scholar |
Pickup, G., Bastin, G. N., and Chewings, V. H. (1998). Identifying trends in land degradation in non-equilibrium rangelands. Journal of Applied Ecology 35, 365–377.
| Identifying trends in land degradation in non-equilibrium rangelands.Crossref | GoogleScholarGoogle Scholar |
Pringle, H. J. R., Watson, I. W., and Tinley, K. L. (2006). Landscape improvement, or ongoing degradation – reconciling apparent contradictions from the arid rangelands of Western Australia. Landscape Ecology 21, 1267–1279.
| Landscape improvement, or ongoing degradation – reconciling apparent contradictions from the arid rangelands of Western Australia.Crossref | GoogleScholarGoogle Scholar |
Queensland Department of Science, Information Technology, Innovation and the Arts (2012). ‘Land Cover Change in Queensland 2009–10. Statewide Landcover and Trees Study Report.’ (DSITIA: Brisbane.) Available at: www.qld.gov.au/environment/land/vegetation/mapping/slats-reports/ (accessed 25 February 2014).
Scanlan, J. C. (2002). Some aspects of tree-grass dynamics in Queensland’s grazing lands. The Rangeland Journal 24, 56–82.
| Some aspects of tree-grass dynamics in Queensland’s grazing lands.Crossref | GoogleScholarGoogle Scholar |
Scarth, P., Byrne, M., Danaher, T., Henry, B., Hassett, R., Carter, J., and Timmers, P. (2006). State of the paddock: monitoring condition and trend in ground cover across Queensland. In: ‘Earth Observation From Science to Solutions. 13th Australasian Remote Sensing Conference’. November 2006. (The Remote Sensing and Photogrammetry Commission of the Spatial Sciences Institute: Canberra, ACT.)
Scarth, P., Röder, A., Schmidt, M., and Denham, R. (2010). Tracking grazing pressure and climate interaction – the role of Landsat fractional cover in time series analysis. In: ‘Proceedings of the 15th Australasian Remote Sensing and Photogrammetry Conference’. Alice Springs, Australia. (The Remote Sensing and Photogrammetry Commission of the Spatial Sciences Institute: Canberra, ACT.)
Scholes, R. J., and Archer, S. R. (1997). Tree-grass interactions in savannas. Annual Review of Ecology and Systematics 28, 517–544.
| Tree-grass interactions in savannas.Crossref | GoogleScholarGoogle Scholar |
Sinclair, R. (2005). Long-term changes in vegetation, gradual and episodic, on the TGB Osborn Vegetation Reserve, Koonamore, South Australia (1926–2002). Australian Journal of Botany 53, 283–296.
| Long-term changes in vegetation, gradual and episodic, on the TGB Osborn Vegetation Reserve, Koonamore, South Australia (1926–2002).Crossref | GoogleScholarGoogle Scholar |
Sparrow, A. D., Friedel, M. H., and Stafford Smith, D. M. (1997). A landscape-scale model of shrub and herbage dynamics in Central Australia, validated by satellite data. Ecological Modelling 97, 197–216.
| A landscape-scale model of shrub and herbage dynamics in Central Australia, validated by satellite data.Crossref | GoogleScholarGoogle Scholar |
Wallace, J. F., Caccetta, P. A., and Kilveri, H. T. (2004). Recent developments in analysis of spatial and temporal data for landscape qualities and monitoring. Austral Ecology 29, 100–107.
| Recent developments in analysis of spatial and temporal data for landscape qualities and monitoring.Crossref | GoogleScholarGoogle Scholar |
Watson, I. W., Novelly, P. E., and Thomas, P. W. E. (2007). Monitoring changes in pastoral rangelands – the Western Australian Rangeland Monitoring System (WARMS). The Rangeland Journal 29, 191–205.
| Monitoring changes in pastoral rangelands – the Western Australian Rangeland Monitoring System (WARMS).Crossref | GoogleScholarGoogle Scholar |
Werner, P. A., and Franklin, D. C. (2010). Resprouting and mortality of juvenile eucalypts in an Australian savanna: impacts of fire season and annual sorghum. Australian Journal of Botany 58, 619–628.
| Resprouting and mortality of juvenile eucalypts in an Australian savanna: impacts of fire season and annual sorghum.Crossref | GoogleScholarGoogle Scholar |
Wilson, B. A., Neldner, V. J., and Accad, A. (2002). The extent and status of remnant vegetation in Queensland and its implications for state-wide vegetation management and legislation. The Rangeland Journal 24, 6–35.
| The extent and status of remnant vegetation in Queensland and its implications for state-wide vegetation management and legislation.Crossref | GoogleScholarGoogle Scholar |
