Navigation Links
Notre Dame researcher is studying role small dams play in pollution control
Date:3/28/2013

Sometimes, little things can add up to a lot.

In short, that's the message of a research study on small dams, streams and pollution by Steve Powers, a postdoctoral researcher at the University of Notre Dame's Environmental Change Initiative (ECI).

"Small dams, reservoirs and ponds trap water pollution, which provides an important benefit to water resources," Powers said. "This is especially relevant in agricultural lands of the Midwest U.S., where there are lots of small, but aging dams."

Although small individually, the sum total of the small reservoirs and ponds have a global surface area comparable to that of all large reservoirs added together.

Powers and his fellow researchers showed in detail how a small aging dam, which was more than 100 years old and located in agricultural Wisconsin, trapped water pollutants associated with fertilizer and manure runoff. They also showed an increase in downstream transport of nutrient pollution after the dam was removed, which occurred because of concerns about the dam's safety.

"Many small dams are threatened by long-term structural decline and are also filling with sediment," Powers said. "If we don't better incorporate how small dams affect the movement of water and wastes through the environment, their benefit to downstream water quality could be lost. Meanwhile, legacy sediment and pollution currently trapped behind dams could release as dams lose their water storage capacity, fall apart, or are removed deliberately."

Powers notes that there is a crucial need to gain a better understanding of what small dams mean for our water quality before they crumble and disappear.

"I am continuing to work on the subject at a broader regional scale by looking at hundreds of stream and river monitoring stations throughout the Midwestern U.S. to detect signals of dams," he said. "One current goal is to try and figure out which regions are most vulnerable to water quality changes caused by accumulation of sediment and phosphorus behind dams."

The research paper appeared in the Journal of Geophysical Research-Biogeosciences.

Powers is conducting his research as part of the Notre Dame Environmental Change Initiative's Land Use Project. The Environmental Change Initiative conducts policy-oriented research designed to help policy-makers manage environmental changes.


'/>"/>

Contact: Steve Powers
powers_s@nd.edu
574-631-9322
University of Notre Dame
Source:Eurekalert

Related biology news :

1. Notre Dame researchers are using new technologies to combat invasive species
2. Notre Dame research may have important implications for combating diabetes
3. Cargill expands support of Notre Dame Haiti Program
4. Notre Dame research reveals migrating Great Lakes salmon carry contaminants upstream
5. Notre Dame research could improve sustainability and cost effectiveness of wastewater treatment
6. Notre Dame research could provide new insights into tuberculosis and other diseases
7. Notre Dame researcher is shedding light on how jaws evolve
8. Notre Dame establishes professorships in adult stem cell research
9. Notre Dame researchers using novel method to combat malaria drug resistance
10. New paper by Notre Dame researchers describes method for cleaning up nuclear waste
11. University of Montreal researchers discover how drug prevents aging and cancer progression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
(Date:4/5/2017)... 5, 2017  The Allen Institute for Cell Science ... a one-of-a-kind portal and dynamic digital window into the ... the first application of deep learning to create predictive ... lines and a growing suite of powerful tools. The ... and future publicly available resources created and shared by ...
(Date:4/5/2017)... , April 4, 2017 KEY FINDINGS ... to expand at a CAGR of 25.76% during the ... is the primary factor for the growth of the ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem ... technology, application, and geography. The stem cell market of ...
Breaking Biology News(10 mins):
(Date:4/19/2017)... Ca (PRWEB) , ... April 18, 2017 , ... A ... technological advances. This webinar, which is part of the Protein and Cell Analysis ... Cytometer and outline where this technology fits in current and future applications. , ...
(Date:4/19/2017)... ... ... Nobilis Therapeutics Announces Completion of Landmark NBTX-001 Clinical Trial in 81 ... Post Traumatic Stress Disorder Trial , Nobilis Therapeutics, Inc. announced today the ... NBTX-001, a xenon-based therapeutic in the treatment of Panic Disorder. , Panic ...
(Date:4/19/2017)... ... April 19, 2017 , ... As part ... webinars accessible to novices as well as experienced users, attendees will gain a ... coagulation screening tests. , Hemostasis testing quality is determined by preanalytical variables ...
(Date:4/19/2017)... and WESTMINSTER, Colo. , ... ("Oxford"), an industry-leading specialty finance firm that provides ... companies, today announced the closing of a $20 ... ("Cerapedics") a privately-held orthobiologics company engaged in the ... for the treatment of orthopedic injuries. ...
Breaking Biology Technology: