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Wind Erosion, Dust and Their Environmental Impacts: An Australian Perspective

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  International Symposium on Erosion and Landscape Evolution (ISELE), 18-21 September 2011, Anchorage, Alaska  711P0311cd Paper #Keynote-1.(doi:10.13031/2013.39202)
Authors:   Grant H McTainsh
Keywords:   Wind erosion, Australia, Dust cycle, Environmental impacts

Wind erosion is a globally significant process that leads to the physical removal of soil materials, reduction in soil fertility and soil moisture storage capacity. Downwind of erosion sites, dusts have diverse environmental impacts. They influence climate, reduce air quality, contribute to soils and add nutrients to lakes, rivers and oceans. These diverse processes have been conceptualised as the Dust Cycle (Shao et al., 2011), which like the carbon and other global cycles, involves a range of entrainment, transport and deposition processes which occur on spatial scales from local to global and on time scales from seconds to millions of years. This address will examine Australias position in the Dust Cycle and make comparisons with other continents. Land management impacts upon wind erosion will also be examined.

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