Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Australia's Black Saturday Fires - Comparison Of Techniques For Estimating Emissions From Vegetation Fires, Clare Paton-Walsh, Louisa K. Emmons, Christine Wiedinmyer
Australia's Black Saturday Fires - Comparison Of Techniques For Estimating Emissions From Vegetation Fires, Clare Paton-Walsh, Louisa K. Emmons, Christine Wiedinmyer
Faculty of Science - Papers (Archive)
We present a comparison of techniques for estimating atmospheric emissions from fires using Australia's 2009 "Black Saturday" wildfires as a case study. Most of the fires started on Saturday the 7th of February 2009 (a date now known as "Black Saturday") and then spread rapidly, fanned by gale force winds, creating several firestorms and killing 173 people. The fires continued into early March, when rain and cooler conditions allowed the fires to be extinguished. In this study, we compare two new techniques (and one more established method) to estimate the total emissions of a number of atmospheric trace gases from …
Functional Relationships Between Vegetation, Channel Morphology, And Flow Efficiency In An Alluvial (Anabranching) River, John D. Jansen, Gerald C. Nanson
Functional Relationships Between Vegetation, Channel Morphology, And Flow Efficiency In An Alluvial (Anabranching) River, John D. Jansen, Gerald C. Nanson
Faculty of Science - Papers (Archive)
Water and sediment flux interactions are examined in Magela Creek, an alluvial (anabranching) sand bed river in the northern Australian tropics. Dense riparian vegetation stabilizes the channels and floodplains thereby preventing erosional instability at flow depths up to 6.2 times bankfull and discharges up to 15 times bankfull. Narrow anabranching channels characterize > 92% of the alluvial reach and transport bed load more efficiently than short reaches of wide single-channels, yet overall 29 +/- 12% of the bed load is sequestered and the average vertical accretion rate is 0.41 +/- 0.17 mm yr (1) along the 12 km study reach. The …
Impacts Of A Woody Invader Vary In Different Vegetation Communities, T J. Mason, K French
Impacts Of A Woody Invader Vary In Different Vegetation Communities, T J. Mason, K French
Faculty of Science - Papers (Archive)
The impact of an exotic species in natural systems may be dependent not only on invader attributes but also on characteristics of the invaded community. We examined impacts of the invader bitou bush, Chrysanthemoides monilifera ssp. rotundata , in fore and hind dune communities of coastal New South Wales, Australia. We compared invader impacts on vegetation structure, richness of both native and exotic growth forms and community variability in fore and hind dunes. We found that impacts of bitou invasion were context specific: in fore dune shrublands, functionally distinct graminoid, herb and climber rather than shrub growth forms had significantly …
Vegetation Over Hydrologic Control Of Sediment Transport Over The Past 100,000 Yr, Anthony Dosseto, Simon Turner, P P Hesse, Kate Maher, Kirstie Fryirs
Vegetation Over Hydrologic Control Of Sediment Transport Over The Past 100,000 Yr, Anthony Dosseto, Simon Turner, P P Hesse, Kate Maher, Kirstie Fryirs
Faculty of Science - Papers (Archive)
No abstract provided.
The Vegetation Requirements Of Superb Fairy-Wrens (Malurus Cyaneus) In Non-Urban Edge And Urbanised Habitats, H Parsons, Kristine O. French, R E. Major
The Vegetation Requirements Of Superb Fairy-Wrens (Malurus Cyaneus) In Non-Urban Edge And Urbanised Habitats, H Parsons, Kristine O. French, R E. Major
Faculty of Science - Papers (Archive)
Urbanisation has created an environment with a broad spectrum of habitats of differing quality for birds. Understanding habitat characteristics is necessary for effective conservation of species in urban environments. We investigated the vegetation requirements of a small, shrub-nesting, Australian bird, the Superb Fairy-wren (Malurus cyaneus), and the relative quality of urban habitats in the Illawarra region of New South Wales. Vegetation was assessed in three different habitats: suburban sites within Superb Fairy-wren territories (n = 20 sites), suburban sites where Fairy-wrens were absent (n = 20), and rural–woodland edge in which Fairy-wrens were present (n = 17). This third habitat …
Australian Backyard Gardens And The Journey Of Migration, Lesley M. Head, Pat Muir, E. Hampel
Australian Backyard Gardens And The Journey Of Migration, Lesley M. Head, Pat Muir, E. Hampel
Faculty of Science - Papers (Archive)
Gardens have been an important site of environmental engagement in Australia since the British colonization. They are places where immigrant people and plants carry on traditions from their homelands, and work out an accommodation with new social and biophysical environments. We examine the backyard gardens of three contemporary migrant groups in suburban Australia, Macedonian, Vietnamese and British-born, and a fourth group of first generation Australians with both parents born overseas. There is strong emphasis on the production of vegetables in Macedonian backyards, and herbs and fruit in Vietnamese backyards. British backyards were more diverse, some focusing on non-native ornamental flowers …