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Protocols in ecological and environmental plant physiology

 

Article << Previous     |         Contents Vol 61(7)

Physical and chemical drivers of vegetation in groundwater-source pools on the Bogong High Plains, Victoria

Victoria A. McCartney A B D , Ewen Silvester A B , John W. Morgan B C and Phillip J. Suter A B

A Department of Environmental Management and Ecology, La Trobe University, Albury/Wodonga campus, Wodonga, Vic. 3690, Australia.
B Research Centre for Applied Alpine Ecology.
C Department of Botany, La Trobe University, Bundoora, Vic. 3086, Australia.
D Corresponding author. Email: v.mccartney@latrobe.edu.au

Australian Journal of Botany 61(7) 566-573 http://dx.doi.org/10.1071/BT13217
Submitted: 6 September 2013  Accepted: 2 December 2013   Published: 11 February 2014


 
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Abstract

The wetland communities intimately associated with groundwater sources in the Australian alps are poorly documented compared with the broader (and more obvious) alpine peatlands. In the present work, we report on the vegetation observed immediately around such sources and the characteristics of the supplying groundwater so as to understand the likely factors controlling the observed vegetation assemblage. Thirty-two groundwater sources were identified across three catchments on the Bogong High Plains, Victoria (Australia), and the vegetation associated with these sources surveyed. Groundwater sources occurred across a range of altitudes (1667–1854 m), independent of aspect, and were hydrologically connected to (upstream of) peatlands. Localised mounding adjacent to the groundwater sources resulted in the formation of pools (‘groundwater source pools’). The vegetation within the pools was dominated by bryophytes, with the aquatic bryophyte Blindia robusta the most common species. The groundwater was deficient in major ions, and similar to rainwater apart from elevated concentrations of CO2 accumulated in the groundwater-recharge process. The high CO2 concentrations, combined with the near-constant temperature conditions provided by sustained groundwater flow, are thought to be likely drivers for the high abundance of B. robusta. Although the relative contributions of rain and snow to aquifer recharge are not fully understood for the Australian Alps, these ecosystems are likely to be vulnerable to the changes in precipitation regime that are predicted under climate-change scenarios.

Additional keywords: alpine, Blindia robusta, bryophytes, groundwater-dependent ecosystems.


References

Berner EK, Berner RA (1987) ‘Global water cycle; geochemistry and environment.’ (Prentice-Hall: Upper Saddle River New Jersey)

Boulton AJ (2005) Chances and challenges in the conservation of groundwaters and their dependent ecosystems. Aquatic Conservation: Marine and Freshwater Ecosystems 15, 319–323.
CrossRef |

Bragg OM (2002) Hydrology of peat-forming wetlands in Scotland. The Science of the Total Environment 294, 111–129.
CrossRef | CAS | PubMed |

Bureau of Meteorology (2012) ‘Climate statistics for Australian locations.’ Available at http://www.bom.gov.au/climate/averages/tables/cw_083084.shtml [Verified 7 August 2012]

Clarke PJ, Martin ARH (1999) Sphagnum peatlands of Kosciusko National Park in relation to altitude, time and disturbance. Australian Journal of Botany 47, 519–536.
CrossRef |

Clarke KR, Warwick RM (2001) ‘Change in marine communities: an approach to statistical analysis and interpretation.’ 2nd edn. (Primer-E: Plymouth, UK)

Costin AB (1955) Alpine soils in Australia with reference to conditions in Europe and New Zealand. European Journal of Soil Science 6, 35–50.
CrossRef |

Eamus D, Hatton T, Cook P, Colvin C (2006) ‘Ecohydrology vegetation function, water and resource management.’ (CSIRO Publishing: Melbourne)

Fensham RJ, Fairfax RJ, Pocknee D, Kelley J (2004) Vegetation patterns in permanent spring wetlands in arid Australia. Australian Journal of Botany 52, 719–728.
CrossRef |

Granath G, Strengbom J, Rydin H (2010) Rapid ecosystem shifts in peatlands: linking plant physiology and succession. Ecology 91, 3047–3056.
CrossRef | PubMed |

Green K, Pickering CM (2009) The decline of snowpatches in the Snowy Mountains of Australia: importance of climate warming, variable snow, and wind. Arctic, Antarctic, and Alpine Research 41, 212–218.
CrossRef |

Hancock PJ, Boulton AJ, Humphreys WF (2005) Aquifers and hyporheic zones: towards an ecological understanding of groundwater. Hydrogeology Journal 13, 98–111.
CrossRef | CAS |

Humphreys WF (2006) Aquifers: the ultimate groundwater-dependent ecosystems. Australian Journal of Botany 54, 115–132.
CrossRef |

Keppel MN, Clarke JDA, Halihan T, Love AJ, Werner AD (2011) Mound springs in the arid Lake Eyre South region of South Australia: a new depositional tufa model and its controls. Sedimentary Geology 240, 55–70.
CrossRef | CAS |

Morand VJ (1990) Low-pressure regional metamorphism in the Omeo Metamorphic Complex, Victoria, Australia. Journal of Metamorphic Geology 8, 1–12.
CrossRef | CAS |

Murray BR, Zeppel MJB, Hose GC, Eamus D (2003) Groundwater-dependent ecosystems in Australia: it’s more than just water for rivers. Ecological Management & Restoration 4, 110–113.
CrossRef |

O’Sullivan PB, Orr M, O’Sullivan AJ, Gleadow AJW (1999) Episodic Late Palaeozoic to Cenozoic denudation of the southeastern highlands of Australia: evidence from the Bogong High Plains, Victoria. Australian Journal of Earth Sciences 46, 199–216.
CrossRef |

Rydin H, Jeglum J (2009) ‘The biology of peatlands.’ (Oxford University Press: Oxford, UK)

Rydin H, Gunnarsson U, Sundberg S (2006) The role of Sphagnum in peatland development and persistence. Ecological Studies 188, 47–65.

Shannon JM, Morgan JW (2007) Floristic variation in Sphagnum-dominated peatland communities of the Central Highlands, Victoria. Cunninghamia 10, 59–76.

Silvester E (2009) Ionic regulation in an alpine peatland in the Bogong High Plains, Victoria, Australia. Environmental Chemistry 6, 424–431.
CrossRef | CAS |

Stumm W, Morgan JJ (1981) Aquatic chemistry. An introduction emphasizing chemical equilibria in natural waters. In ‘The regulation of the chemical composition of natural waters’. 2nd edn. pp. 534–538. (John Wiley & Sons)

Taylor DH, Morand VJ, Cayley RA, Wohlt KE, Simons BA, Meagher S (2004) ‘Falls Creek 1 : 50 000 geological map.’ (Geological Survey of Victoria: Melbourne)

Wahren C-HA, Williams RJ, Papst WA (1999) Alpine and subalpine wetland vegetation on the Bogong High Plains, south-eastern Australia. Australian Journal of Botany 47, 165–188.
CrossRef |

Wahren C-HA, Williams RJ, Papst WA (2001) Vegetation change and ecological processes in alpine and subalpine Sphagnum bogs of the Bogong High Plains, Victoria, Australia. Arctic, Antarctic, and Alpine Research 33, 357–368.
CrossRef |

Whinam J, Chilcott NM, Morgan JW (2003) Floristic composition and environmental relationships of Sphagnum-dominated communities in Victoria. Cunninghamia 8, 162–174.

Williams RJ (1987) Patterns of air temperature and accumulation of snow in subalpine heathlands and grasslands on the Bogong High Plains, Victoria. Australian Journal of Ecology 12, 153–163.
CrossRef |

Winter TC, Harvey JW, Franke OL, Alley WM (1998) Ground water and surface water – a single resource. United States geological survey circular 1139, Denver, CO.


   
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