Spinifex-mallee revegetation: Implications for restoration after mineral-sands mining in the Murray-Darling Basin

Ian Sluiter, Andrew Schweitzer, Ralph MAC NALLY

    Research output: Contribution to journalArticle

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    Abstract

    Mineral-sands mining in the semiarid and arid zone of south-eastern Australia is now a widespread disturbance that may adversely affect large areas of remnant vegetation, including mallee (Eucalyptus spp.) with hummock grass or spinifex (Triodia scariosa) understorey. No broad-scale restoration projects have been undertaken to revegetate mallee Eucalyptus species with spinifex. We report on the survivorship and relative importance (spatial coverage) of hand-planted tubestock 10 years after establishment in 2001, which included mallee Eucalyptus, Triodia scariosa, Acacia spp. and Hakea spp. These taxa are the dominant plants in a semiarid dune-swale system on a former mineral-sands mine licence area in semiarid, north-western Victoria. Mean survivorship of tubestock was 0.58±0.04. Spinifex (Triodia scariosa), needlewood (Hakea) and several mallee species (Eucalyptus spp.) survived substantially better than the average of all tubestock-planted species, although Acacia spp. had low survivorships. Although the plantings were undertaken in the early stages of the most severe drought in the instrumental record (the 'Millennium drought'), several taxa survived well and species such as spinifex established and developed ground coverage greater than the benchmark values for the ecological vegetation class of the location. We conclude that hand-planting of tubestock can achieve restoration objectives for this component of spinifex-mallee vegetation, even under extremely arduous conditions associated with long-term drought. We also herald the importance of taking a long-term view to the assessment of revegetation success, in this case 10 years.
    Original languageEnglish
    Pages (from-to)547-554
    Number of pages8
    JournalAustralian Journal of Botany
    Volume64
    Issue number6
    DOIs
    Publication statusPublished - 2016

    Fingerprint

    Triodia
    revegetation
    land restoration
    Eucalyptus
    survivorship
    Hakea
    sand
    basins
    minerals
    survival rate
    drought
    mineral
    Acacia
    basin
    vegetation
    hands
    Victoria (Australia)
    planting
    ecological value
    semiarid zones

    Cite this

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    title = "Spinifex-mallee revegetation: Implications for restoration after mineral-sands mining in the Murray-Darling Basin",
    abstract = "Mineral-sands mining in the semiarid and arid zone of south-eastern Australia is now a widespread disturbance that may adversely affect large areas of remnant vegetation, including mallee (Eucalyptus spp.) with hummock grass or spinifex (Triodia scariosa) understorey. No broad-scale restoration projects have been undertaken to revegetate mallee Eucalyptus species with spinifex. We report on the survivorship and relative importance (spatial coverage) of hand-planted tubestock 10 years after establishment in 2001, which included mallee Eucalyptus, Triodia scariosa, Acacia spp. and Hakea spp. These taxa are the dominant plants in a semiarid dune-swale system on a former mineral-sands mine licence area in semiarid, north-western Victoria. Mean survivorship of tubestock was 0.58±0.04. Spinifex (Triodia scariosa), needlewood (Hakea) and several mallee species (Eucalyptus spp.) survived substantially better than the average of all tubestock-planted species, although Acacia spp. had low survivorships. Although the plantings were undertaken in the early stages of the most severe drought in the instrumental record (the 'Millennium drought'), several taxa survived well and species such as spinifex established and developed ground coverage greater than the benchmark values for the ecological vegetation class of the location. We conclude that hand-planting of tubestock can achieve restoration objectives for this component of spinifex-mallee vegetation, even under extremely arduous conditions associated with long-term drought. We also herald the importance of taking a long-term view to the assessment of revegetation success, in this case 10 years.",
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    Spinifex-mallee revegetation: Implications for restoration after mineral-sands mining in the Murray-Darling Basin. / Sluiter, Ian; Schweitzer, Andrew; MAC NALLY, Ralph.

    In: Australian Journal of Botany, Vol. 64, No. 6, 2016, p. 547-554.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Spinifex-mallee revegetation: Implications for restoration after mineral-sands mining in the Murray-Darling Basin

    AU - Sluiter, Ian

    AU - Schweitzer, Andrew

    AU - MAC NALLY, Ralph

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    AB - Mineral-sands mining in the semiarid and arid zone of south-eastern Australia is now a widespread disturbance that may adversely affect large areas of remnant vegetation, including mallee (Eucalyptus spp.) with hummock grass or spinifex (Triodia scariosa) understorey. No broad-scale restoration projects have been undertaken to revegetate mallee Eucalyptus species with spinifex. We report on the survivorship and relative importance (spatial coverage) of hand-planted tubestock 10 years after establishment in 2001, which included mallee Eucalyptus, Triodia scariosa, Acacia spp. and Hakea spp. These taxa are the dominant plants in a semiarid dune-swale system on a former mineral-sands mine licence area in semiarid, north-western Victoria. Mean survivorship of tubestock was 0.58±0.04. Spinifex (Triodia scariosa), needlewood (Hakea) and several mallee species (Eucalyptus spp.) survived substantially better than the average of all tubestock-planted species, although Acacia spp. had low survivorships. Although the plantings were undertaken in the early stages of the most severe drought in the instrumental record (the 'Millennium drought'), several taxa survived well and species such as spinifex established and developed ground coverage greater than the benchmark values for the ecological vegetation class of the location. We conclude that hand-planting of tubestock can achieve restoration objectives for this component of spinifex-mallee vegetation, even under extremely arduous conditions associated with long-term drought. We also herald the importance of taking a long-term view to the assessment of revegetation success, in this case 10 years.

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    U2 - 10.1071/BT15265

    DO - 10.1071/BT15265

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    JO - Australian Journal of Botany

    JF - Australian Journal of Botany

    SN - 0067-1924

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    ER -