Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean?
The supply of soluble iron through atmospheric dust deposition limits the productivity of the Southern Ocean. In comparison to the Northern Hemisphere, the Southern Hemisphere exhibits low levels of dust activity. However, given their proximity to the Southern Ocean, dust emissions from continental...
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ftcdlib:qt5t97q76q 2023-05-15T18:24:25+02:00 Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? Bhattachan, A D'Odorico, P 6009 2014-08-11 application/pdf http://www.escholarship.org/uc/item/5t97q76q english eng eScholarship, University of California qt5t97q76q http://www.escholarship.org/uc/item/5t97q76q public Bhattachan, A; & D'Odorico, P. (2014). Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean?. Scientific Reports, 4, 6009. doi:10.1038/srep06009. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/5t97q76q article 2014 ftcdlib https://doi.org/10.1038/srep06009 2018-09-21T22:52:03Z The supply of soluble iron through atmospheric dust deposition limits the productivity of the Southern Ocean. In comparison to the Northern Hemisphere, the Southern Hemisphere exhibits low levels of dust activity. However, given their proximity to the Southern Ocean, dust emissions from continental sources in the Southern Hemisphere could have disproportionate impact on ocean productivity. Australia is the largest source of dust in the Southern Hemisphere and aeolian transport of dust has major ecological, economic and health implications. In the Mallee, agriculture is a major driver of dust emissions and dust storms that affect Southeastern Australia. In this study, we assess the dust generating potential of the sediment from the Mallee, analyze the sediment for soluble iron content and determine the likely depositional region of the emitted dust. Our results suggest that the Mallee sediments have comparable dust generating potential to other currently active dust sources in the Southern Hemisphere and the dust-sized fraction is rich in soluble iron. Forward trajectory analyses show that this dust will impact the Tasman Sea and the Australian section of the Southern Ocean. This iron-rich dust could stimulate ocean productivity in future as more areas are reactivated as a result of land-use and droughts. © 2014 Macmillan Publishers Limited. All rights reserved. Article in Journal/Newspaper Southern Ocean University of California: eScholarship Southern Ocean Scientific Reports 4 1 |
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University of California: eScholarship |
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English |
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The supply of soluble iron through atmospheric dust deposition limits the productivity of the Southern Ocean. In comparison to the Northern Hemisphere, the Southern Hemisphere exhibits low levels of dust activity. However, given their proximity to the Southern Ocean, dust emissions from continental sources in the Southern Hemisphere could have disproportionate impact on ocean productivity. Australia is the largest source of dust in the Southern Hemisphere and aeolian transport of dust has major ecological, economic and health implications. In the Mallee, agriculture is a major driver of dust emissions and dust storms that affect Southeastern Australia. In this study, we assess the dust generating potential of the sediment from the Mallee, analyze the sediment for soluble iron content and determine the likely depositional region of the emitted dust. Our results suggest that the Mallee sediments have comparable dust generating potential to other currently active dust sources in the Southern Hemisphere and the dust-sized fraction is rich in soluble iron. Forward trajectory analyses show that this dust will impact the Tasman Sea and the Australian section of the Southern Ocean. This iron-rich dust could stimulate ocean productivity in future as more areas are reactivated as a result of land-use and droughts. © 2014 Macmillan Publishers Limited. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Bhattachan, A D'Odorico, P |
spellingShingle |
Bhattachan, A D'Odorico, P Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
author_facet |
Bhattachan, A D'Odorico, P |
author_sort |
Bhattachan, A |
title |
Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
title_short |
Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
title_full |
Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
title_fullStr |
Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
title_full_unstemmed |
Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean? |
title_sort |
can land use intensification in the mallee, australia increase the supply of soluble iron to the southern ocean? |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
http://www.escholarship.org/uc/item/5t97q76q |
op_coverage |
6009 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Bhattachan, A; & D'Odorico, P. (2014). Can land use intensification in the Mallee, Australia increase the supply of soluble iron to the Southern Ocean?. Scientific Reports, 4, 6009. doi:10.1038/srep06009. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/5t97q76q |
op_relation |
qt5t97q76q http://www.escholarship.org/uc/item/5t97q76q |
op_rights |
public |
op_doi |
https://doi.org/10.1038/srep06009 |
container_title |
Scientific Reports |
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4 |
container_issue |
1 |
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1766204920424300544 |