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

RIVERSIDE, Calif -- Nitrogen is a beneficial plant fertilizer in small amounts, but large amounts cause negative impacts on ecosystems, such as water pollution, acidification of soils, increased productivity of invasive species, increased probability of wildfire, and a decline of native plant diversity.

Over the past century human activities have more than quadrupled the amount of plant-available nitrogen inputs from the atmosphere compared to natural inputs. What impact does this have on plant species diversity across the United States?

A group of scientists, including researchers at the University of California, Riverside, has received a one-year $100,000 grant from the John Wesley Powell Center for Analysis and Synthesis of the U.S. Geological Survey to examine the evidence for impacts of pollutant nitrogen on plant species diversity across the United States. Specifically, the group, called the Powell Center Working Group on Diversity and Nitrogen Deposition, will synthesize data sets on the impacts of nitrogen deposition on plant diversity.

"Documentation of the impacts of nitrogen deposition on plant diversity are generally lacking in the U.S., but observations from Europe indicate biodiversity losses in areas with high levels of nitrogen pollution," said Edith B. Allen, a professor of plant ecology in the Department of Botany and Plant Sciences and the grant's principal investigator at UC Riverside. Other principal investigators are at the U.S. Geological Survey and the University of Colorado at Boulder.

Nitrogen's primary sources are agriculture, industry and automobile emissions. Nitrogen deposition refers to the input of reactive nitrogen species from the atmosphere to the biosphere. The 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.


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

Related biology news :

1. Autism Speaks announces the release of new genetic data for researchers
2. Making memories: Drexel researchers explore the anatomy of recollection
3. U-M researchers to study food security across Michigan
4. Researchers test solution to fungal disease of ash trees
5. UCLA researchers to study depression in breast cancer survivors
6. Princeton researchers identify unexpected bottleneck in the spread of herpes simplex virus
7. Iowa State, Ames Lab researchers find 3 unique cell-to-cell bonds
8. Researchers use blood testing to predict level of enzymes that facilitate disease progression
9. Researchers identify genetic basis of cardiac, craniofacial birth defects
10. Duke researchers engineer cartilage from pluripotent stem cells
11. NIH researchers identify novel genes that may drive rare, aggressive form of uterine cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers to study impacts of pollutant nitrogen on plant species diversity
(Date:4/19/2017)... The global military biometrics market ... by the presence of several large global players. The ... major players - 3M Cogent, NEC Corporation, M2SYS Technology, ... 61% of the global military biometric market in 2016. ... military biometrics market boast global presence, which has catapulted ...
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/5/2017)... , April 5, 2017  The Allen Institute ... Allen Cell Explorer: a one-of-a-kind portal and dynamic digital ... 3D imaging data, the first application of deep learning ... human stem cell lines and a growing suite of ... platform for these and future publicly available resources created ...
Breaking Biology News(10 mins):
(Date:8/16/2017)... King of Prussia, PA (PRWEB) , ... August 16, 2017 , ... ... leaders will be taking part in sessions at the ISPE Annual Meeting and ... the Marriott Marquis San Diego Marina. The event’s theme is “Driving innovation to advance ...
(Date:8/16/2017)... ... August 16, 2017 , ... Recent studies show ... Many treatments for specific cancers, such as breast, prostate, or lung, target vital ... deprivation therapy for advanced prostate cancer. , This therapy limits the production ...
(Date:8/16/2017)... ... August 16, 2017 , ... Today, 3Bar Biologics Inc ... $2M in funding from an impressive group of investors, including Rev1 Ventures, Maumee ... With this investment, 3Bar is broadening availability of its groundbreaking offering that uses ...
(Date:8/16/2017)... of the Inc. 5000 features a now-familiar name: BioPoint ( http://biopointinc.com/ ), ... for the third year in a row. Now in its 36th edition, ... set of quantitative metrics. In addition, BioPoint was also named to the ... Bay State . ... ...
Breaking Biology Technology: