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In situ, high-resolution evidence for iron-coupled mobilization of phosphorus in sediments

Overview of attention for article published in Scientific Reports, April 2016
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Title
In situ, high-resolution evidence for iron-coupled mobilization of phosphorus in sediments
Published in
Scientific Reports, April 2016
DOI 10.1038/srep24341
Pubmed ID
Authors

Shiming Ding, Yan Wang, Dan Wang, Yang Yang Li, Mengdan Gong, Chaosheng Zhang

Abstract

Reductive dissolution of phosphorus-bearing iron (Fe) (oxyhydr)oxides has been regarded as a primary mechanism responsible for the mobilization of phosphorus (P) in sediments for over 70 years. However, to date there is little in situ evidence to support this hypothesis. In this study, a total of 16 sites in the large eutrophic Lake Taihu were selected for investigation. Newly-developed diffusive gradients in thin films (ZrO-Chelex DGT) probes were deployed to simultaneously measure labile Fe and P mainly released from sediment solids at millimeter spatial resolution. Significantly positive correlations were observed between DGT-labile Fe and P at 14 sites, implying a release of P following reductive dissolution of Fe (oxyhydr)oxides. A coincident resupply of Fe(II) and P was observed from sediment solids to buffer their releases from DGT perturbance, further verifying the mechanism of Fe-coupled mobilization of P. The ratio of DGT-labile Fe/P was found to be positively correlated with the ratio of easily reducible (oxyhydr)oxide Fe to its associated P, indicating that this solid phase should retain P prior to its release. The results provide direct evidence for the coupling between Fe and P in sediments and further identify the easily reducible Fe (oxyhydr)oxide species involved in the coupling process.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 79 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 79 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 17 22%
Student > Master 10 13%
Researcher 8 10%
Other 5 6%
Professor 4 5%
Other 12 15%
Unknown 23 29%
Readers by discipline Count As %
Environmental Science 19 24%
Agricultural and Biological Sciences 11 14%
Chemistry 6 8%
Earth and Planetary Sciences 4 5%
Unspecified 3 4%
Other 6 8%
Unknown 30 38%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 April 2016.
All research outputs
#15,368,104
of 22,862,742 outputs
Outputs from Scientific Reports
#77,893
of 123,469 outputs
Outputs of similar age
#179,555
of 299,111 outputs
Outputs of similar age from Scientific Reports
#1,886
of 3,012 outputs
Altmetric has tracked 22,862,742 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 123,469 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.2. This one is in the 29th percentile – i.e., 29% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 299,111 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 31st percentile – i.e., 31% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 3,012 others from the same source and published within six weeks on either side of this one. This one is in the 29th percentile – i.e., 29% of its contemporaries scored the same or lower than it.