Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ bioRxivarrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 2 versions

A climosequence of chronosequences in southwestern Australia

Authors: Turner, Benjamin L.; Hayes, Patrick E.; Laliberté, Etienne;

A climosequence of chronosequences in southwestern Australia

Abstract

AbstractTo examine how climate affects soil development and nutrient availability over long timescales, we studied a series of four long-term chronosequences along a climate gradient in southwestern Australia. Annual rainfall ranged from 533 mm to 1185 mm (water balance from –900 mm to +52 mm) and each chronosequence included Holocene (≤6.5 ka), Middle Pleistocene (120–500 ka), and Early Pleistocene (∼2000 ka) dunes. Vegetation changed markedly along the climosequence, from shrubland at the driest site toEucalyptusforest at the wettest. The carbonate and P content of the parent sand declined along the climosequence, presumably linked to variation in offshore productivity. However, soil development and associated nutrient status followed remarkably consistent patterns along the four chronosequences. Pedogenesis involved decalcification and secondary carbonate precipitation in Holocene soils and leaching of iron oxides from Middle Pleistocene soils, ultimately yielding bleached quartz sands on the oldest soils. Along all chronosequences soil pH and total P declined, while C:P and N:P ratios increased, consistent with the predicted shift from N to P limitation of vegetation during ecosystem development. The expected unimodal pattern of leaf area index was most pronounced along wetter chronosequences, suggesting an influence of climate on the expression of retrogression. The four chronosequences do not appear to span a pedogenic climate threshold, because exchangeable phosphate and base cations declined consistently during long-term pedogenesis. However, the proportion of the total P in organic form was greater along wetter chronosequences. We conclude that soils and nutrient availability on the coastal sand plains of southwestern Australia change consistently during long-term pedogenesis, despite marked variation in modern vegetation and climate. The four chronosequences provide a rare soil-age × climate framework within which to study long-term ecosystem development.

Subjects by Vocabulary

Microsoft Academic Graph classification: geography geography.geographical_feature_category Ecology Chronosequence Vegetation Shrubland Pedogenesis Soil pH Soil water Environmental science Precipitation Physical geography Holocene

42 references, page 1 of 5

Albornoz, F.E., Teste, F.P., Lambers, H., Bunce, M., Murray, D.C., White, N.E. & Laliberté, E. 2016. Changes in ectomycorrhizal fungal community composition and declining diversity along a 2- million-year soil chronosequence. Molecular Ecology, 25, 4919-4929.

Bastian, L.V. 1996. Residual soil mineralogy and dune subdivision, Swan Coastal Plain, Western Australia. Australian Journal of Earth Sciences, 43, 31-44.

Chadwick, O.A. & Chorover, J. 2001. The chemistry of pedogenic thresholds. Geoderma, 100, 321- 353.

Chadwick, O.A., Gavenda, R.T., Kelly, E.F., Ziegler, K., Olson, C.G., Elliott, W.C. & Hendricks, D.M. 2003. The impact of climate on the biogeochemical functioning of volcanic soils. Chemical Geology, 202, 195-223.

Fanning, D.S. & Fanning, M.C.B. 1989. Soil Morphology, Genesis and Classification. John Wiley & Sons, New York.

Feng, J., Turner, B.L., Lü, X., Chen, Z., Wei, K., Tian, J., Wang, C., Luo, W. & Chen, L. 2016. Phosphorus transformations along a large-scale climosequence in arid and semiarid grasslands of northern China. Global Biogeochemical Cycles, 30, 1264-1275.

Gee, G.W. & Or, D. 2002. Particle size analysis. In: Methods of Soil Analysis, Part 4 - Physical Methods (eds. Dane, J.H. & Topp, C.), pp. 255-293. Soil Science Society of America, Madison, WI.

Hayes, P., Turner, B.L., Lambers, H. & Laliberté, E. 2014. Foliar nutrient concentrations and resorption efficiency in plants of contrasting nutrient-acquisition strategies along a 2-millionyear dune chronosequence. Journal of Ecology, 102, 396-410.

Hendershot, W.H., Lalande, H. & Duquette, M. 2008. Chapter 18. Ion exchange and exchangeable cations. In: Soil Sampling and Methods of Analysis (eds. Carter, M.R. & Gregorich, E.), pp. 173- 178. Canadian Society of Soil Science and CRC Press, Boca Raton, FL.

Hopper, S.D. & Gioia, P. 2004. The Southwest Australian Floristic Region: Evolution and conservation of a global hot spot of biodiversity. Annual Review of Ecology, Evolution, and Systematics, 35, 623-650.

  • BIP!
    Impact byBIP!
    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    Powered byBIP!BIP!
Powered by OpenAIRE graph
Found an issue? Give us feedback
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average