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Journal of the Australian Rangeland Society
RESEARCH ARTICLE

Relationship between fire frequency and nitrogen limitation on foliage production in a native grassland community in Victoria, Australia

J. W. Morgan
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Department of Botany, La Trobe University, Bundoora, Vic. 3086, Australia.
Email: J.Morgan@latrobe.edu.au

The Rangeland Journal 29(1) 101-105 https://doi.org/10.1071/RJ06046
Submitted: 21 December 2006  Accepted: 1 March 2007   Published: 14 June 2007

Abstract

The relationship between fire frequency (annual v. infrequent) and nitrogen (N) limitation to foliage production in a temperate native grassland community in western Victoria, Australia, was assessed over one growing season using a simple ammonium nitrate addition experiment. Fire history affected the magnitude of the vegetation responses to N addition. At the community level, mean live biomass in infrequently-burned grasslands declined by 20 ± 8% in response to N addition. In contrast, mean biomass increased by 60 ± 15% in annually-burned grasslands in response to N addition. Both grasses and forbs responded positively to N addition in annually-burned grasslands, with forbs responding more substantially than grasses. Foliage production in annually-burned native grasslands therefore appears to be constrained by N availability. The results of this study may have important implications for understanding species coexistence and invasion by non-native species in temperate native grasslands.

Additional keywords: biomass, N addition, resource availability, Themeda triandra.


Acknowledgements

James Martindale Shannon assisted with the sorting of biomass samples. Bob Parsons, Jodi Price, Tim Seastedt and two anonymous referees provided helpful comments that improved early versions of the manuscript. Roger Parish is thanked for field support.


References


Blair J. M. (1997) Fire, N availability and plant response in grasslands: a test of the transient maxima hypothesis. Ecology 78, 2359–2368.
Crossref | GoogleScholarGoogle Scholar | open url image1

Blair J. M. , Seastedt T. R. , Rice C. W. , and Ramundo R. A. (1998). Terrestrial nutrient cycling in tallgrass prairie. In: ‘Grassland dynamics: long-term ecological research in tallgrass prairie’. (Eds A. K. Knapp, J. M. Briggs, D. C. Hartnett, S. L. Collins.) pp. 222–243. (Oxford University Press: New York.)

Bobbink R., Hornung M., Roelofs J. G. M. (1998) The effects of airborne nitrogen pollutants on species diversity in natural and semi-natural European vegetation. Journal of Ecology 86, 717–738.
Crossref | GoogleScholarGoogle Scholar | open url image1

Briggs J. M., Knapp A. K. (2001) Determinants of C3 forb growth and production in a C4 dominated grassland. Plant Ecology 152, 93–100.
Crossref | GoogleScholarGoogle Scholar | open url image1

Bureau of Meteorology, and Walsh N. G. (1993). Climate of Victoria. In: ‘Flora of Victoria. Vol. 1. Introduction’. (Eds D. B. Foreman and N. G. Walsh.) pp. 47–60. (Inkata Press: Melbourne.)

Chalmers A., McIntyre S., Whalley R. D. B., Reid N. (2005) Grassland species response to soil disturbance and nutrient enrichment on the Northern Tablelands of New South Wales. Australian Journal of Botany 53, 485–499.
Crossref | GoogleScholarGoogle Scholar | open url image1

Fisher H. J. (1974) Effect of nitrogen fertiliser on a kangaroo grass (Themeda australis) grassland. Australian Journal of Experimental Agriculture and Animal Husbandry 14, 526–532.
Crossref | GoogleScholarGoogle Scholar | open url image1

Groves R. H. (1965) Growth of Themeda australis tussock grassland at St. Albans, Victoria. Australian Journal of Botany 13, 291–302. open url image1

Huenneke L. F., Hamburg S. P., Koide R., Mooney H. A., Vitousek P. M. (1990) Effects of soil resources on plant invasion and community structure in California serpentine grassland. Ecology 71, 478–491.
Crossref | GoogleScholarGoogle Scholar | open url image1

Hurlbert S. J. (1984) Pseudoreplication and design of ecological field experiments. Ecological Monographs 54, 187–211.
Crossref | GoogleScholarGoogle Scholar | open url image1

Johnson L. C., Matchett J. R. (2001) Fire and grazing regulate belowground processes in tallgrass prairie. Ecology 82, 3377–3389.
Crossref | GoogleScholarGoogle Scholar | open url image1

Knapp A. K., Seastedt T. R. (1986) Detritus accumulation limits the productivity of tallgrass prairie. Bioscience 36, 662–668.
Crossref | GoogleScholarGoogle Scholar | open url image1

Knapp A. K., Smith M. D. (2001) Variation among biomes in temporal dynamics of aboveground primary production. Science 291, 481–484.
Crossref | GoogleScholarGoogle Scholar | PubMed | open url image1

Knapp A. K. , Briggs J. M. , Blair J. M. , and Turner C. L. (1998). Patterns and controls of aboveground net primary production in tallgrass prairie. In: ‘Grassland dynamics: long-term ecological research in tallgrass prairie’. (Eds A. K. Knapp, J. M. Briggs, D. C. Hartnett and S. L. Collins.) pp. 193–221. (Oxford University Press: New York.)

Knapp A. K., Briggs J. M., Koelliker J. K. (2001) Frequency and extent of water limitation to primary production in a mesic temperate grassland. Ecosystems 4, 19–28.
Crossref | GoogleScholarGoogle Scholar | open url image1

Knapp A. K., Fay P. A., Blair J. M., Collins S. L., Smith M. D., Carlisle J. D., Harper C. W., Danner B. T., Lett M. S., McCarron J. K. (2002) Rainfall variability, carbon cycling, and plant species diversity in a mesic grassland. Science 298, 2202–2205.
Crossref | GoogleScholarGoogle Scholar | PubMed | open url image1

Lunt I. D. , and Morgan J. W. (2002). The role of fire regimes in temperate lowland grasslands of southeastern Australia. In: ‘Flammable Australia: the fire regimes and biodiversity of a continent’. (Eds R. A. Bradstock, J. E. Williams and A. M. Gill.) pp. 177–196. (Cambridge University Press: Cambridge.)

McDougall K. , Barlow T. , and Appleby M. (1994). Western basalt plains, Lake Omeo, Murray Valley riverine plains and the Wimmera. In: ‘Conservation of lowland native grasslands in south-eastern Australia’. (Eds K. McDougall and J. B. Kirkpatrick.) pp. 44–112. (Worldwide Fund for Nature Australia: Sydney.)

McDougall K. L. (1989). The re-establishment of Themeda triandra (Kangaroo Grass): implications for the restoration of grassland. Arthur Rylah Institute for Environmental Research, Technical Report Series No. 89. Department of Conservation, Forests and Lands: Melbourne.

McIntyre S., Lavorel S. (1994) Predicting richness of native, rare and exotic plants in response to habitat and disturbance variables across a variegated landscape. Conservation Biology 8, 521–531.
Crossref | GoogleScholarGoogle Scholar | open url image1

Morgan J. W. (1998) Patterns of invasion of an urban remnant of a species-rich grassland in southeastern Australia by non-native plant species. Journal of Vegetation Science 9, 181–190.
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

Morgan J. W., Lunt I. D. (1999) Effects of time-since-fire on the tussock dynamics of a dominant grass (Themeda triandra) in a temperate Australian grassland. Biological Conservation 88, 379–386.
Crossref | GoogleScholarGoogle Scholar | open url image1

Ojima D. S. , Parton W. J. , Schimel D. S. , and Owensby C. E. (1990). Simulated impacts of annual burning on prairie ecosystems. In: ‘Fire in North American tallgrass prairies’. (Eds S. L. Collins and L. L. Wallace.) pp. 118–132. (University of Oklahoma Press: Oklahoma.)

Owensby C. E., Hyde R. M., Anderson K. L. (1970) Effects of clipping and supplemental nitrogen and water on loamy upland bluestem range. Journal of Range Management 23, 341–346. open url image1

Pennings S. C., Clark C. M., Cleland E. E., Collins S. L., Gough L., Gross K. L., Milchunas D. G., Suding K. N. (2005) Do individual plant species show predictable responses to nitrogen addition across multiple experiments? Oikos 110, 547–555.
Crossref | GoogleScholarGoogle Scholar | open url image1

Prober S. M., Thiele K. R., Lunt I. D. (2002) Identifying ecological barriers to restoration in temperate grassy woodlands: soil changes associated with different degradation states. Australian Journal of Botany 50, 699–712.
Crossref | GoogleScholarGoogle Scholar | open url image1

Quinn G. P. , and Keough M. J. (2002). ‘Experimental design and data analysis for biologists.’ (Cambridge University Press: Port Melbourne.)

Raison R. J. (1979) Modifications of the soil environment by vegetation fires, with particular reference to nitrogen transformations: a review. Plant and Soil 51, 73–108.
Crossref | GoogleScholarGoogle Scholar | open url image1

Scattini W. J. (1981) Native pasture response to nitrogen and sulphur under two cutting frequencies on a cracking clay soil in southern Queensland. Australian Journal of Experimental Agriculture and Animal Husbandry 21, 326–333.
Crossref | GoogleScholarGoogle Scholar | open url image1

Seastedt T. R., Briggs J. M., Gibson D. J. (1991) Controls of nitrogen limitation in tallgrass prairie. Oecologia 87, 72–79.
Crossref | GoogleScholarGoogle Scholar | open url image1

Specht R. L. (1963) Dark Island heath (Ninety-Mile Plain, South Australia). 7. The effect of fertilizers on composition and growth, 1950–60. Australian Journal of Botany 11, 67–94.
Crossref | GoogleScholarGoogle Scholar | open url image1

Stevens C. J., Dise N. B., Mountford O. J. O., Gowling D. J. (2004) Impact of nitrogen deposition on the species richness of grasslands. Science 303, 1876–1879.
Crossref | GoogleScholarGoogle Scholar | PubMed | open url image1

Stuwe J., Parsons R. F. (1977) Themeda australis grasslands on the basalt plains, Victoria: floristic and management effects. Australian Journal of Ecology 2, 467–476.
Crossref | GoogleScholarGoogle Scholar | open url image1

Suding K. N., Collins S. L., Gough L., Clark C., Cleland E. E., Gross K. L., Milchunas D. G., Pennings S. (2005) Functional- and abundance-based mechanisms explain diversity loss due to N fertilization. Proceedings of the National Academy of Sciences USA 102, 4387–4392.
Crossref | GoogleScholarGoogle Scholar | open url image1

Tilman D. (1987) Secondary succession and the pattern of plant dominance along experimental nitrogen gradients. Ecological Monographs 57, 189–214.
Crossref | GoogleScholarGoogle Scholar | open url image1

Tupper G. J. (1978) Effects of nitrogen and phosphorus fertilizers and gypsum on a Danthonia caespitosa-Stipa variabilis grassland. I. Response to fertilizer application over four successive years. Australian Journal of Experimental Agriculture and Animal Husbandry 18, 253–261.
Crossref | GoogleScholarGoogle Scholar | open url image1

Turner C. L., Blair J. M., Schwartz R. J., Neel J. C. (1997) Soil N and plant responses to fire, topography and supplemental N in tallgrass prairie. Ecology 78, 1832–1843.
Crossref | GoogleScholarGoogle Scholar | open url image1









1 Nomenclature according to Ross and Walsh (2003).