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RESEARCH ARTICLE
Contents Vol 30(3)

Relationships between soil temperatures and properties of fire in feathertop spinifex (Triodia schinzii (Henrard) Lazarides) sandridge desert in central Australia

B. R. Wright A B and P. J. Clarke A
+ Author Affiliations
- Author Affiliations

A Botany, School of Environmental and Rural Sciences, University of New England, NSW 2351, Australia.

B Corresponding author. Email: triodia-brw@inbox.com

The Rangeland Journal 30(3) 317-325 https://doi.org/10.1071/RJ07049
Submitted: 1 July 2007  Accepted: 10 January 2008   Published: 5 September 2008

Abstract

Soil temperatures during wildfires are known to influence seed bank and plant resprouting dynamics in arid Australian grasslands. Nevertheless, relationships between soil temperatures and factors such as fuel load, fuel type, season of burn, time-of-day and soil moisture are poorly understood. This study used small-scale experimental burns to determine the effects of these five variables on soil temperature profiles (0–4 cm) during fire in spinifex sandridge country in the Haasts Bluff Aboriginal Reserve, west of Alice Springs. Fuel load and type were found to strongly influence soil temperatures, with soils directly beneath Triodia hummocks experiencing more heating than hummock edges or between-hummock gaps, and soils beneath Triodia hummocks experiencing more heating than either mulga (Acacia aneura F.Muell. ex. Benth.) litter or Aristida holathera Domin. tussocks. Season and time-of-day also had strong effects on below-ground heating, with soil temperatures remaining elevated for longer periods during summer compared to winter burns, and day-time burns producing higher temperature maxima and longer durations of elevated soil temperatures than night burns. Soil moisture also had a strong impact on temperature profiles during fire, with high levels of soil moisture strongly reducing the soil heating during fire. These results indicate that the examined factors will strongly influence soil temperature regimes during spinifex wildfires. Hence, they are likely to affect the composition of plant assemblages in post-fire environments through their impacts on vegetative regeneration and on seed bank processes.

Additional keywords: Aristida holathera, fire intensity, mulga, seed banks, temperature.


Acknowledgements

This study was funded by an Australian Postgraduate Award Scholarship to BRW. We would like to thank Dr Ben Norton and Dr Wal Whalley for their comments on the draft manuscript. We would also like to thank Dr David Backhouse and Professor Burgess for the use of their thermocouples during our experiments. Appreciation is also extended to Scott McConnell, Walter Jugadai, Douglas Multa and the rest of the Haasts Bluff community for their support and hospitality during this research project. Brian Connelly and the Northern Territory Central Lands Council are also thanked for their assistance in facilitating this research on Aboriginal freehold land.


References


Allan G. E. , and Southgate R. I. (2001). Fire regimes in the spinifex landscapes of Australia. In: ‘Flammable Australia: Fire Regimes and Biodiversity of a Continent’. (Eds R. A. Bradstock, J. E. Williams and A. M. Gill.) pp. 145–176. (Cambridge University Press: Cambridge.)

Aston A. R., Gill A. M. (1976) Coupled soil moisture, heat and water vapour transfers under simulated fire conditions. Australian Journal of Soil Research 14, 55–66.
| Crossref | GoogleScholarGoogle Scholar | (accessed 25 February 2008).

Baver L. D. (1940). ‘Soil Physics.’ (Chapman and Hall: London.)

Bowman D. M. J. S., Latz P. K., Panton W. J. (1995) Pattern and change in an Acacia aneura shrubland and Triodia hummock grassland mosaic on rolling hills in central Australia. Australian Journal of Botany 43, 25–37.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Bradstock R. A., Auld T. D., Ellis M. E., Cohn J. S. (1992) Soil temperatures during bushfires in semi-arid, mallee shrublands. Australian Journal of Ecology 17, 433–440.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Burrows N. D., Ward B., Robinson A. (1991) Fire behaviour in spinifex fuels on the Gibson Desert Nature Reserve, Western Australia. Journal of Arid Environments 20, 189–204. open url image1

Byram G. M. (1959). Combustion of forest fuels. In: ‘Forest Fire: Control and Use’. (Ed. K. P. Davis.) pp. 61–89. (McGraw-Hill: New York.)

Campbell G. S., Jungbauer J. D., Bristow J. K. L., Hungerford R. D. (1995) Soil temperature and water content beneath a surface fire. Soil Science 159, 363–374.
| Crossref | GoogleScholarGoogle Scholar | CAS | open url image1

Cook L. (1939) A contribution to our information on grass burning. South African Journal of Science 36, 270–282.
|  CAS |
open url image1

Geiger R. (1957). ‘The Climate Near the Ground.’ (Harvard University Press: Cambridge.)

Griffin G. F. (1990) Characteristics of three spinifex alliances in Central Australia. Journal of Vegetation Science 1, 435–444.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Griffin G. F., Price N. F., Portlock H. F. (1983) Wildfires in the Central Australian rangelands, 1970–1980. Journal of Environmental Management 17, 311–323. open url image1

Hartford R. A., Frandson W. H. (1992) When its hot, its hot … or maybe its not! (Surface flaming may not portend extensive soil heating.) International Journal of Wildland Fire 2, 139–144.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hodgkinson K. C. (1991) Shrub recruitment response to intensity and season of fire in a semi-arid woodland. Journal of Applied Ecology 28, 60–70.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hodgkinson K. C. (1998) Sprouting success of shrubs after fire: height-dependent relationships for different strategies. Oecologia 115, 64–72.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Hodgkinson K. C. , and Griffin G. (1982). Adaptation of shrub species to fire in the arid zone. In: ‘Evolution of the Flora and Fauna of Arid Australia’. (Eds W. R. Barker and P. J. M. Greenslade.) pp. 145–152. (Peacock Publications: Adelaide, SA.)

Letnic M., Dickman C. R., McNaught G. (2000) Bet-hedging and germination in the Australian arid zone shrub Acacia ligulata. Austral Ecology 25, 368–374.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Maconochie J. R. (1982). Regeneration of arid zone plants: a floristic survey. In: ‘Evolution of the Flora and Fauna of Arid Australia’. (Eds W. R. Barker and P. J. M. Greenslade.) pp. 141–144. (Peacock Publications: Adelaide, SA.)

Molina M. J., Llinares J. V. (2001) Temperature–time curves at the soil surface in maquis summer fires. International Journal of Wildland Fire 10, 45–52.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Morgan J. W. (1999) Defining grassland fire events and the response of perennial plants to annual fire in temperate grasslands of south-eastern Australia. Plant Ecology 144, 127–144.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Nano C. E. M. (2005). Within- and between-habitat coexistence in mulga (Acacia aneura) shrubland-spinifex (Triodia spp.) hummock grassland mosaics in central Australia. Ph.D. Thesis, University of New England, Armidale, NSW, Australia.

Noble J. C., Smith A. W., Leslie H. W. (1980) Fire in the mallee shrublands of western New South Wales. Australian Rangelands Journal 2, 104–114.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Norton B. E., McGarity J. W. (1965) The effect of burning of native pasture in northern New South Wales. Journal of the British Grassland Society 20, 101–105.
|  CAS |
open url image1

Prescott J. A. (1952). ‘The Soils of Australia in Relation to Vegetation and Climate.’ (CSIRO: Melbourne.)

Quinn G. P. , and Keough M. J. (2002). ‘Experimental Design and Data Analysis for Biologists.’ (Cambridge University Press: Cambridge.)

Riba M. (1997) Effects of cutting and rainfall pattern on resprouting vigour and growth of Erica arborea L. Journal of Vegetation Science 8, 401–404.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Rundel P. W. (1981). Fire as an ecological factor. In: ‘Physiological Plant Ecology. 1. Responses to the Physical Environment’. (Eds O. L. Lange, P. S. Nobel, C. B. Osmond and H. Zeigler.) pp. 501–538. (Springer-Verlag: Berlin.)

Schimmel J., Granstrom A. (1996) Fire severity and vegetation response in the Boreal Swedish forest. Ecology 77, 1436–1450.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Scotter D. R. (1970) Soil temperatures under grass fires. Australian Journal of Soil Research 8, 273–279.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Steward F. R., Peter S., Richon J. B. (1990) A method for predicting the depth of lethal heat penetration into mineral soils exposed to fires of various intensities. Canadian Journal of Forest Research 20, 919–926.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Tothill J. C., Shaw N. H. (1968) Temperatures under fires in bunch spear grass pastures of south-east Queensland. Journal of the Australian Institute of Agricultural Science , 94–97. open url image1

Vlok J. H. J., Yeaton R. I. (2000) The effect of short fire cycles on the cover and density of understorey sprouting species in South African mountain fynbos. Diversity & Distributions 6, 233–242.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Wright B. R., Clarke P. J. (2007a) Resprouting responses of Acacia shrubs in the Western Desert of Australia – fire severity, interval and season influence survival. International Journal of Wildland Fire 16, 317–323.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Wright B. R., Clarke P. J. (2007b) Fire regime (recency, interval and season) changes the composition of spinifex (Triodia spp.)-dominated desert dunes. Australian Journal of Botany 55, 709–724.
| Crossref | GoogleScholarGoogle Scholar | open url image1

Zedler P. H., Gautier C. R., McMaster G. S. (1983) Vegetation change in response to extreme events: the effect of a short interval between fires in Californian chaparral and coastal scrub. Ecology 64, 809–818.
| Crossref | GoogleScholarGoogle Scholar | open url image1