Featured Research

from universities, journals, and other organizations

'Fingerprinting' used to determine source of water sediment

Date:
August 14, 2014
Source:
Teagasc
Summary:
Forensic geoscience is being used to determine the source of sediment in watercourses. Delivery of sediment to watercourses can have environmental and economic impacts. Elevated suspended sediment in rivers, as a result of enterprises such as agriculture and forestry, can result in decreased light penetration in rivers, affecting aquatic flora and fauna. Excessive sediment in a river bed can smother aquatic habitats for species such as the Freshwater Pearl Mussel and Atlantic salmon.

Teagasc research is using forensic geoscience to determine the source of sediment in our watercourses.

Related Articles


Delivery of sediment to watercourses can have environmental and economic impacts. Elevated suspended sediment in rivers, as a result of enterprises such as agriculture and forestry, can result in decreased light penetration in rivers, affecting aquatic flora and fauna. Excessive sediment in a river bed can smother aquatic habitats for species such as the Freshwater Pearl Mussel and Atlantic salmon.

Dr. Daire Σ hUallachain (Teagasc Johnstown Castle) highlighted that "it is important to identify sediment sources in order to target cost-effective watercourse management."

Sediment fingerprinting is a novel technique for quantifying the relative contribution of sediment from different sources in a catchment. The approach collects soil samples from potential sediment source areas (e.g. channel banks, tillage fields, forestry). The distinctive signature from each source area can then be identified from natural properties such as geochemistry, radionuclides, magnetics and colour. Sediment collected in a stream is a mixture of sediments from each of the source areas. Sediment fingerprinting involves separating stream sediment out into the different source area sediments, thus allowing each source to be quantified.

Dr. Σ hUallachαin said that "research on sediment fingerprinting is being undertaken in three catchments from the Teagasc Agricultural Catchments Programme. The technique offers valuable insight into the relative importance of different sources within agricultural landscapes. It helps identify source areas and facilitates targeting of mitigation measures, in turn helping to achieve water quality objectives under the EU Water Framework Directive."


Story Source:

The above story is based on materials provided by Teagasc. Note: Materials may be edited for content and length.


Cite This Page:

Teagasc. "'Fingerprinting' used to determine source of water sediment." ScienceDaily. ScienceDaily, 14 August 2014. <www.sciencedaily.com/releases/2014/08/140814123929.htm>.
Teagasc. (2014, August 14). 'Fingerprinting' used to determine source of water sediment. ScienceDaily. Retrieved January 30, 2015 from www.sciencedaily.com/releases/2014/08/140814123929.htm
Teagasc. "'Fingerprinting' used to determine source of water sediment." ScienceDaily. www.sciencedaily.com/releases/2014/08/140814123929.htm (accessed January 30, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Friday, January 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Rare Clouds Fill Grand Canyon

Raw: Rare Clouds Fill Grand Canyon

AP (Jan. 29, 2015) — For the second time in two months, a rare weather phenomenon filled the Grand Canyon with thick clouds just below the rim on Wednesday. (Jan. 29) Video provided by AP
Powered by NewsLook.com
Senate Passes Bill for Keystone XL Pipeline

Senate Passes Bill for Keystone XL Pipeline

AP (Jan. 29, 2015) — The Republican-controlled Senate has passed a bipartisan bill approving construction of the Keystone XL oil pipeline. (Jan. 29) Video provided by AP
Powered by NewsLook.com
"Cloud Inversion" In Grand Canyon

"Cloud Inversion" In Grand Canyon

Reuters - US Online Video (Jan. 29, 2015) — Time lapse video captures a blanket of clouds amassing in the Grand Canyon -- the result of a rare meteorological process called "cloud inversion." Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Why Researchers Say We Should Cut Back On Biofuels

Why Researchers Say We Should Cut Back On Biofuels

Newsy (Jan. 29, 2015) — Biofuels aren&apos;t the best alternative to fossil fuels, according to a new report. In fact, they&apos;re quite a bad one. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins