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Effect of soil salinity on growth of irrigated plantation Eucalyptus in south-eastern Australia

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  • Feikema, P.M.
  • Baker, T.G.

Abstract

Management of salinity may include establishing trees in saline areas to enhance discharge and may enable productive use of saline land. Field studies of the performance of trees in saline conditions are generally confined to the initial years after planting, and little quantitative data are available on the relationship between the growth rates of eucalypt species to soil salinity in field conditions at later ages (e.g. 10 years). In this study, the growth of irrigated Eucalyptus globulus, E. grandis and E. camaldulensis is examined in relation to soil salinity measured using an electromagnetic induction device (EM38). The EM38 was found to be an effective tool in determining survival and growth responses of three Eucalyptus species to levels of soil salinity. Differences in measured tree survival, stand volume and leaf area index were correlated with soil salinity. Of the three species, E. globulus performed best in terms of survival and volume growth to age 10 years under slight to moderate salinity conditions, while E. camaldulensis performed best under moderate to severe soil salinity. The ranking of these species for salinity tolerance is consistent with pot trials and younger field trials. This study highlighted the high spatial variability associated with soil salinity, and studies relating the growth of trees in the field should best be analysed on an areal or stand basis, thereby accounting for variability of salt stored in the soil, and reducing the influence of inter-tree competition on growth-salinity relationships. These results have implications for site selection and management of eucalypts in saline areas.

Suggested Citation

  • Feikema, P.M. & Baker, T.G., 2011. "Effect of soil salinity on growth of irrigated plantation Eucalyptus in south-eastern Australia," Agricultural Water Management, Elsevier, vol. 98(7), pages 1180-1188, May.
    • Handle: RePEc:eee:agiwat:v:98:y:2011:i:7:p:1180-1188
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    References listed on IDEAS

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    1. Bennett, D. L. & George, R. J., 1995. "Using the EM38 to measure the effect of soil salinity on Eucalyptus globulus in south-western Australia," Agricultural Water Management, Elsevier, vol. 27(1), pages 69-85, April.
    2. Benyon, R. G. & Marcar, N. E. & Crawford, D. F. & Nicholson, A. T., 1999. "Growth and water use of Eucalyptus camaldulensis and E. occidentalis on a saline discharge site near Wellington, NSW, Australia," Agricultural Water Management, Elsevier, vol. 39(2-3), pages 229-244, February.
    3. John Bartle & Graeme Olsen & Don Cooper & Trevor Hobbs, 2007. "Scale of biomass production from new woody crops for salinity control in dryland agriculture in Australia," International Journal of Global Energy Issues, Inderscience Enterprises Ltd, vol. 27(2), pages 115-137.
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    Cited by:

    1. Willian Viana Campos & Paulo Araquém Ramos Cairo & Raul Antonio Araújo do Bonfim & Mateus Pires Barbosa & Leandro Dias da Silva & Mikaela Oliveira Souza & Milton Carriço Sá, 2020. "Evaluation of Morphophysiological and Biochemical Features in Young Plants of Khaya senegalensis Under Increasing Salinity," Journal of Agricultural Studies, Macrothink Institute, vol. 8(3), pages 464-483, September.
    2. Xin Wei & Li Dong & Xuanyi Chen & Yunru Zhou, 2023. "Influence of Soluble Salt NaCl on Cracking Characteristics and Mechanism of Loess," Sustainability, MDPI, vol. 15(6), pages 1-16, March.

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