Oecologia

, Volume 170, Issue 4, pp 909–916 | Cite as

Dynamics of phreatophyte root growth relative to a seasonally fluctuating water table in a Mediterranean-type environment

  • Caroline A. Canham
  • Raymond H. Froend
  • William D. Stock
  • Muriel Davies
Physiological ecology - Original research

Abstract

While seasonal redistribution of fine root biomass in response to fluctuations in groundwater level is often inferred in phreatophytic plants, few studies have observed the in situ growth dynamics of deep roots relative to those near the surface. We investigated the root growth dynamics of two Banksia species accessing a seasonally dynamic water table and hypothesized that root growth phenology varied with depth, i.e. root growth closest to the water table would be influenced by water table dynamics rather than surface micro-climate. Root in-growth bags were used to observe the dynamics of root growth at different soil depths and above-ground growth was also assessed to identify whole-plant growth phenology. Root growth at shallow depths was found to be in synchrony with above-ground growth phenophases, following increases in ambient temperature and soil water content. In contrast, root growth at depth was either constant or suppressed by saturation. Root growth above the water table and within the capillary fringe occurred in all seasons, corresponding with consistent water availability and aerobic conditions. However, at the water table, a seasonal cycle of root elongation with drawdown in summer followed by trimming in response to water table rise and saturation in winter, was observed. The ability to grow roots year-round at the capillary fringe and redistribute fine root biomass in response to groundwater drawdown is considered critical in allowing phreatophytes, in seasonally water-limited environments, to maintain access to groundwater throughout the year.

Keywords

Banksia Groundwater Phenology In situ root growth dynamics Root in-growth bags 

References

  1. Bell D, Stephens L (1984) Seasonality and phenology of Kwongan species. In: Pate J, Beard J (eds) Kwongan plant life of the sand plain. University of Western Australia Press, Perth, pp 205–226Google Scholar
  2. Böhm W (1979) Methods of studying root systems. Springer-Verlag, BerlinCrossRefGoogle Scholar
  3. Bureau of Meteorology (2010) Climate statistics for Australian locations. Retrieved from http://www.bom.gov.au/climate/averages/tables/cw_009021.shtml in September, 2010
  4. Busch DE, Ingraham NL, Smith SD (1992) Water uptake in woody riparian phreatophytes of the southeastern United States: a stable isotope study. Ecol Appl 2:450–459CrossRefGoogle Scholar
  5. Canadell J, Jackson RB, Ehleringer JR, Mooney HA, Sala OE, Schulze ED (1996) Maximum rooting depth of vegetation types at the global scale. Oecologia 108:583–595CrossRefGoogle Scholar
  6. Canham CA, Froend RH, Stock WD (2009) Water stress vulnerability of four Banksia species in contrasting ecohydrological habitats on the Gnangara Mound, Western Australia. Plant Cell Environ 32:64–72PubMedCrossRefGoogle Scholar
  7. Castelli RM, Chambers JC, Tausch RJ (2000) Soil-plant relations along a water-table gradient in Great Basin riparian meadows. Wetlands 20:251–266CrossRefGoogle Scholar
  8. Cooper DJ, D’Amico DR, Scott ML (2003) Physiological and morphological response patterns of Populus deltoides to alluvial groundwater pumping. Environ Manage 31:215–226PubMedCrossRefGoogle Scholar
  9. Dawson TE, Pate JS (1996) Seasonal water uptake and movement in root systems of Australian phreatophytic plants of dimorphic root morphology: a stable isotope investigation. Oecologia 107:13–20CrossRefGoogle Scholar
  10. Dodd J, Bell DT (1993) Water relations of the canopy species in a Banksia woodland, Swan Coastal Plain, Western Australia. Aust J Ecol 18:281–293CrossRefGoogle Scholar
  11. Dodd J, Heddle EM, Pate JS, Dixon KW (1984) Rooting patterns of sandplain plants and their functional significance. In: Pate J, Beard J (eds) Kwongan plant life of the sand plain. University of Western Australia Press, Nedlands, pp 146–177Google Scholar
  12. Eamus D, Hatton T, Cook P, Colvin C (2006) Ecohydrology: vegetation function, water and resource management. CSIRO Publishing, CollingwoodGoogle Scholar
  13. Farrington P, Greenwood EA, Bartle GA, Beresford JD, Watson GD (1989) Evaporation from Banksia woodland on a groundwater mound. J Hydrol 105:173–186CrossRefGoogle Scholar
  14. Freeze RA, Cherry JA (1979) Groundwater. Prentice-Hall Inc., New JerseyGoogle Scholar
  15. Gentilli J (1972) Australian Climate Patterns. Thomas Nelson, MelbourneGoogle Scholar
  16. Greacen EL (1981) Soil water assessment by the neutron method. CSIRO (Division of Soils), AdelaideGoogle Scholar
  17. Groom PK (2004) Rooting depth and plant water relations explain species distribution patterns within a sandplain landscape. Funct Plant Biol 31:423–428CrossRefGoogle Scholar
  18. Hendrick RL, Pregitzer KS (1997) The relationship between fine root demography and the soil environment in northern hardwood forests. Ecoscience 4:99–105Google Scholar
  19. Horton JL, Clark J (2001) Water table decline alters growth and survival of Salix goodingii and Tamarix chinensis seedlings. Forest Ecol and Manag 140:239–247CrossRefGoogle Scholar
  20. Imada S, Yamanaka N, Tamai S (2008) Water table depth affects Populus alba fine root growth and whole plant biomass. Funct Ecol 22:1018–1026CrossRefGoogle Scholar
  21. Imada S, Yamanaka N, Tamai S (2010) Fine-root growth, fine-root mortality, and leaf morphological change of Populus alba in response to fluctuating water tables. Trees 24:499–506CrossRefGoogle Scholar
  22. Joslin JD, Wolfe MH, Hanson PJ (2001) Factors controlling the timing of root elongation intensity in a mature upland oak stand. Plant Soil 228:201–212CrossRefGoogle Scholar
  23. Kozlowski TT (1997) Responses of woody plants to flooding and salinity. Tree Physiology Monograph 1:1–29Google Scholar
  24. Kramer PJ, Boyer JS (1995) Water relations of plants and soils. Academic Press Inc., San DiegoGoogle Scholar
  25. Kranjcec J, Mahoney JM, Rood SB (1998) The responses of three riparian cottonwood species to water table decline. Forest Ecol Manag 110:77–87CrossRefGoogle Scholar
  26. Kummerow J, Krause D, Jow W (1978) Seasonal changes of fine root density in the southern Californian chaparral. Oecologia 37:201–212CrossRefGoogle Scholar
  27. Lamont BB (2003) Structure, ecology and physiology of root clusters—a review. Plant Soil 248:1–19CrossRefGoogle Scholar
  28. Lamont BB, Bergl SM (1991) Water relations, shoot and root architecture, and phenology of three co-occurring Banksia species: no evidence for niche differentiation in the pattern of water use. Oikos 60:291–298CrossRefGoogle Scholar
  29. Lubczynski MW (2009) The hydrogeological role of trees in water-limited environments. Hydrogeol J 17:247–259CrossRefGoogle Scholar
  30. Mahoney JM, Rood SB (1991) A device for studying the influence of declining water table on poplar growth and survival. Tree Physiol 8:305–314PubMedGoogle Scholar
  31. Mahoney JM, Rood SB (1998) Streamflow requirements for cottonwood seedling recruitment—an integrative model. Wetlands 18:634–645CrossRefGoogle Scholar
  32. Martin D, Chambers J (2002) Restoration of riparian meadows degraded by livestock grazing: above and belowground responses. Plant Ecol 163:77–91CrossRefGoogle Scholar
  33. Meinzer OE (1923) Outline of groundwater hydrology with definitions. Water-supply paper 494. US Geological SurveyGoogle Scholar
  34. Montenegro G, Araya S, Aljaro ME, Avila G (1982) Seasonal fluctuations of vegetative growth in roots and shoots of Central Chilean shrubs. Oecologia 53:235–237CrossRefGoogle Scholar
  35. Murray BR, Zeppel MJ, Hose GC, Eamus D (2003) Groundwater dependent ecosystems in Australia: it’s more than just water for rivers. Ecol Manage Restor 4:110–113CrossRefGoogle Scholar
  36. Naumburg E, Mata-Gonzalez R, Hunter R, McLendon T, Martin D (2005) Phreatophytic vegetation and groundwater fluctuations: a review of current research and application of ecosystem response modelling with an emphasis on Great Basin vegetation. Environ Manage 35:726–740PubMedCrossRefGoogle Scholar
  37. Palacio S, Montserrat-Martí G (2007) Above and belowground phenology of four Mediterranean sub-shrubs: preliminary results on root-shoot competition. J Arid Environ 68:522–533CrossRefGoogle Scholar
  38. Poole DK, Miller PC (1975) Water relations of selected chapparal and coastal sage communities. Ecology 56:1118–1128CrossRefGoogle Scholar
  39. Popiel LO, Wojtkowiak J, Biernacka B (2001) Measurements of temperature distribution in ground. Exp Therm Fluid Sci 25:301–309CrossRefGoogle Scholar
  40. Purnell HM (1960) Studies of the family Proteaceae. I. Anatomy and morphology of the roots of some Victorian species. Aust J Bot 8:38–50CrossRefGoogle Scholar
  41. Richards MB, Stock WD, Cowling RM (1995) Water relations of seedlings and adults of two fynbos Proteaceae species in relation to their distribution patterns. Funct Ecol 9:575–583CrossRefGoogle Scholar
  42. Scott M, Shafroth P, Auble G (1999) Responses of riparian cottonwoods to alluvial water table declines. Environ Manage 23:347–358PubMedCrossRefGoogle Scholar
  43. Sperry JS, Hacke UG (2002) Desert shrub water relations with respect to soil characteristics and plant functional type. Funct Ecol 16:367–378CrossRefGoogle Scholar
  44. Stave J, Oba G, Eriksen AB, Nordal I, Stenseth BC (2005) Seedling growth of Acacia tortilis and Faidherbia albida in response to simulated groundwater tables. Forest Ecol Manag 212:367–375CrossRefGoogle Scholar
  45. Steinaker DF, Wilson SD, Peltzer DA (2010) Asynchronicity in root and shoot phenology in grasses and woody plants. Global Change Biol 16:2241–2251CrossRefGoogle Scholar
  46. Teskey RO, Hinckley TM (1981) Influence of temperature and water potential on root growth of white oak. Physiol Plantarum 52:363–369CrossRefGoogle Scholar
  47. Veneklass EJ, Poot P (2003) Seasonal patterns in water use and leaf turnover of different plant functional types in a species rich woodland, south-western Australia. Plant Soil 257:295–304CrossRefGoogle Scholar
  48. Voroney RP (2007) The Soil Habitat. In: Eldor AP (ed) Soil microbiology and biochemistry, 3rd edn. Elsevier Inc., USA, pp 25–53CrossRefGoogle Scholar
  49. Zencich SJ, Froend RH, Turner JV, Gailitis V (2002) Influence of groundwater depth on the seasonal sources of water accessed by Banksia tree species on a shallow, sandy coastal aquifer. Oecologia 131:8–19CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Caroline A. Canham
    • 1
  • Raymond H. Froend
    • 1
  • William D. Stock
    • 1
  • Muriel Davies
    • 1
  1. 1.Centre for Ecosystem Management, Edith Cowan UniversityJoondalupAustralia

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