Effects of grazing, trenching and surface soil disturbance on ground cover in woody encroachment on the Cobar Pediplain, south-eastern Australia

Rhiannon Smith, Matthew Tighe, Nick Reid, Sue Briggs, Brian Wilson

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    This study investigated three possible reasons for low ground cover in an inter-patch in woody encroachment in semi-arid south-eastern Australia: (1) grazing by large herbivores, (2) competition with woody plants for resources, and (3) the smooth, crusted soil surface impeding litter lodgement and germination of seeds. Grazing exclusion, trenching (cutting roots of woody plants to 30 cm depth) and surface soil disturbance treatments were established in October 2008, and herbaceous ground cover and litter cover were measured after three, 16 and 30 months. Perennial grass cover in the ungrazed area was higher in trenched plots than in untrenched plots. Perennial grass cover in the grazed area was very low in trenched and untrenched plots. Herbaceous ground cover increased over time in ungrazed and trenched plots, much more than in grazed or untrenched plots. Soil disturbance did not affect herbaceous ground cover. Herbaceous ground cover was low in all treatments (
    Original languageEnglish
    Pages (from-to)80-86
    Number of pages7
    JournalJournal of Arid Environments
    Volume96
    DOIs
    Publication statusPublished - 2013

    Fingerprint

    trenching
    ground cover
    soil surface
    grazing
    woody plants
    disturbance
    grasses
    soil
    woody plant
    litter
    grass
    seed germination
    herbivores
    soil depth
    herbivore
    germination
    effect
    seed
    resource

    Cite this

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    title = "Effects of grazing, trenching and surface soil disturbance on ground cover in woody encroachment on the Cobar Pediplain, south-eastern Australia",
    abstract = "This study investigated three possible reasons for low ground cover in an inter-patch in woody encroachment in semi-arid south-eastern Australia: (1) grazing by large herbivores, (2) competition with woody plants for resources, and (3) the smooth, crusted soil surface impeding litter lodgement and germination of seeds. Grazing exclusion, trenching (cutting roots of woody plants to 30 cm depth) and surface soil disturbance treatments were established in October 2008, and herbaceous ground cover and litter cover were measured after three, 16 and 30 months. Perennial grass cover in the ungrazed area was higher in trenched plots than in untrenched plots. Perennial grass cover in the grazed area was very low in trenched and untrenched plots. Herbaceous ground cover increased over time in ungrazed and trenched plots, much more than in grazed or untrenched plots. Soil disturbance did not affect herbaceous ground cover. Herbaceous ground cover was low in all treatments (",
    keywords = "Grazing, Ground cover, Inter-patch, Semi-arid, Woody encroachment, Woody-herbaceous competition.",
    author = "Rhiannon Smith and Matthew Tighe and Nick Reid and Sue Briggs and Brian Wilson",
    year = "2013",
    doi = "10.1016/j.jaridenv.2013.04.006",
    language = "English",
    volume = "96",
    pages = "80--86",
    journal = "Journal of Arid Environments",
    issn = "0140-1963",
    publisher = "Academic Press Inc.",

    }

    Effects of grazing, trenching and surface soil disturbance on ground cover in woody encroachment on the Cobar Pediplain, south-eastern Australia. / Smith, Rhiannon; Tighe, Matthew; Reid, Nick; Briggs, Sue; Wilson, Brian.

    In: Journal of Arid Environments, Vol. 96, 2013, p. 80-86.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Effects of grazing, trenching and surface soil disturbance on ground cover in woody encroachment on the Cobar Pediplain, south-eastern Australia

    AU - Smith, Rhiannon

    AU - Tighe, Matthew

    AU - Reid, Nick

    AU - Briggs, Sue

    AU - Wilson, Brian

    PY - 2013

    Y1 - 2013

    N2 - This study investigated three possible reasons for low ground cover in an inter-patch in woody encroachment in semi-arid south-eastern Australia: (1) grazing by large herbivores, (2) competition with woody plants for resources, and (3) the smooth, crusted soil surface impeding litter lodgement and germination of seeds. Grazing exclusion, trenching (cutting roots of woody plants to 30 cm depth) and surface soil disturbance treatments were established in October 2008, and herbaceous ground cover and litter cover were measured after three, 16 and 30 months. Perennial grass cover in the ungrazed area was higher in trenched plots than in untrenched plots. Perennial grass cover in the grazed area was very low in trenched and untrenched plots. Herbaceous ground cover increased over time in ungrazed and trenched plots, much more than in grazed or untrenched plots. Soil disturbance did not affect herbaceous ground cover. Herbaceous ground cover was low in all treatments (

    AB - This study investigated three possible reasons for low ground cover in an inter-patch in woody encroachment in semi-arid south-eastern Australia: (1) grazing by large herbivores, (2) competition with woody plants for resources, and (3) the smooth, crusted soil surface impeding litter lodgement and germination of seeds. Grazing exclusion, trenching (cutting roots of woody plants to 30 cm depth) and surface soil disturbance treatments were established in October 2008, and herbaceous ground cover and litter cover were measured after three, 16 and 30 months. Perennial grass cover in the ungrazed area was higher in trenched plots than in untrenched plots. Perennial grass cover in the grazed area was very low in trenched and untrenched plots. Herbaceous ground cover increased over time in ungrazed and trenched plots, much more than in grazed or untrenched plots. Soil disturbance did not affect herbaceous ground cover. Herbaceous ground cover was low in all treatments (

    KW - Grazing

    KW - Ground cover

    KW - Inter-patch

    KW - Semi-arid

    KW - Woody encroachment

    KW - Woody-herbaceous competition.

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    DO - 10.1016/j.jaridenv.2013.04.006

    M3 - Article

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    EP - 86

    JO - Journal of Arid Environments

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    SN - 0140-1963

    ER -