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Researchers to study impacts of pollutant nitrogen on plant species diversity
Date:11/8/2012

pollutants that contribute to nitrogen deposition derive mainly from nitrogen oxides and ammonia.

Allen and her colleagues will evaluate patterns of plant diversity within plant communities along gradients ranging from high to low nitrogen deposition. The group will determine the gradients from a nationwide deposition model as well as measured deposition data from the Environmental Protection Agency and other agencies.

"We have already obtained plant diversity data from government and private sources," said Allen, a member of UCR's Center for Conservation Biology. "We will use our results to refine critical loads of nitrogen inputs that cause losses in diversity, and we will make available critical load data to regulatory agencies so that they can set air quality standards to preserve biodiversity."

The Powell Center Working Group on Diversity and Nitrogen Deposition has a total of 16 collaborators from the United States and Europe. At UCR, Allen will be joined in the research by Robert Johnson, an assistant specialist in the Center for Conservation Biology.

The John Wesley Powell Center for Analysis and Synthesis serves as a catalyst for innovative thinking in earth system science research by providing scientists from different backgrounds a place and time to focus on multi-faceted issues. Its working groups come together around information related to complex questions or phenomena.


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Contact: Iqbal Pittalwala
iqbal@ucr.edu
95-108-276-050
University of California - Riverside
Source:Eurekalert  

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