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Regional Effects of Agricultural Conservation Practices on Nutrient Transport in the Upper Mississippi River Basin

Overview of attention for article published in Environmental Science & Technology, June 2016
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (92nd percentile)
  • High Attention Score compared to outputs of the same age and source (89th percentile)

Mentioned by

news
2 news outlets
blogs
1 blog
twitter
6 tweeters
facebook
1 Facebook page

Citations

dimensions_citation
47 Dimensions

Readers on

mendeley
92 Mendeley
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Title
Regional Effects of Agricultural Conservation Practices on Nutrient Transport in the Upper Mississippi River Basin
Published in
Environmental Science & Technology, June 2016
DOI 10.1021/acs.est.5b03543
Pubmed ID
Authors

Ana María García, Richard B. Alexander, Jeffrey G. Arnold, Lee Norfleet, Michael J. White, Dale M. Robertson, Gregory Schwarz

Abstract

Despite progress in the implementation of conservation practices, related improvements in water quality have been challenging to measure in larger river systems. In this paper we quantify these downstream effects by applying the empirical USGS water-quality model SPARROW to investigate whether spatial differences in conservation intensity were statistically correlated with variations in nutrient loads. In contrast to other forms of water quality data analysis, the application of SPARROW controls for confounding factors such as hydrologic variability, multiple sources and environmental processes. A measure of conservation intensity was derived from the USDA-CEAP regional assessment of the Upper Mississippi River and used as an explanatory variable in a model of the Upper Midwest. The spatial pattern of conservation intensity was negatively correlated (p = 0.003) with the total nitrogen loads in streams in the basin. Total phosphorus loads were weakly negatively correlated with conservation (p = 0.25). Regional nitrogen reductions were estimated to range from 5 to 34 percent and phosphorus reductions from 1 to 10 percent in major river basins of the Upper Mississippi region. The statistical associations between conservation and nutrient loads are consistent with hydrological and biogeochemical processes such as denitrification. The results provide empirical evidence at the regional scale that conservation practices have had a larger statistically detectable effect on nitrogen than on phosphorus loadings in streams and rivers of the Upper Mississippi Basin.

Twitter Demographics

The data shown below were collected from the profiles of 6 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 92 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 4 4%
Unknown 88 96%

Demographic breakdown

Readers by professional status Count As %
Researcher 26 28%
Student > Ph. D. Student 21 23%
Student > Master 15 16%
Other 6 7%
Professor 6 7%
Other 9 10%
Unknown 9 10%
Readers by discipline Count As %
Environmental Science 41 45%
Agricultural and Biological Sciences 15 16%
Earth and Planetary Sciences 10 11%
Engineering 6 7%
Social Sciences 4 4%
Other 1 1%
Unknown 15 16%

Attention Score in Context

This research output has an Altmetric Attention Score of 25. 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 02 October 2016.
All research outputs
#539,906
of 12,313,065 outputs
Outputs from Environmental Science & Technology
#869
of 12,334 outputs
Outputs of similar age
#19,619
of 275,355 outputs
Outputs of similar age from Environmental Science & Technology
#28
of 264 outputs
Altmetric has tracked 12,313,065 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 12,334 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.1. This one has done particularly well, scoring higher than 93% of its peers.
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 275,355 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 92% of its contemporaries.
We're also able to compare this research output to 264 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 89% of its contemporaries.