Featured Research

from universities, journals, and other organizations

New research focuses on streamwater chemistry, landscape variation

Date:
April 22, 2014
Source:
The University of Montana
Summary:
Scientists are getting a better understanding of how streamwater chemistry varies across a headwater stream network. Headwater streams perform critical functions for downstream ecosystems, but the complexity of their streamwater chemistry is not well understood.

Winsor Lowe, interim director of the University of Montana's Wildlife Biology Program, co-wrote a research paper published April 21 in the Proceedings of the National Academy of Sciences on how streamwater chemistry varies across a headwater stream network.

Related Articles


Lowe and co-authors from Virginia Tech, the U.S. Geological Survey, the University of Washington, the Cary Institute of Ecosystem Studies, the University of Connecticut and the U.S. Forest Service Northern Research Station examined 664 water samples collected every 10 meters along 32 tributaries of a stream network in the Hubbard Brook Valley of New Hampshire.

Lowe says this would be like looking at any of the Bitterroot Valley creeks by starting at its headwaters high in the mountains and sampling all the small streams that feed into the system as the stream makes its way down to the Bitterroot River.

Headwater streams perform critical functions for downstream ecosystems, but the complexity of their streamwater chemistry is not well understood. Lowe and his co-authors' findings suggest that in headwater stream networks many factors influence the streamwater chemistry in different locations along the stream's course, and in complex relationships with the surrounding landscape.

Previous studies of streamwater chemistry generally looked at stream characteristics along one branch, focusing on variation from upstream to downstream. This study's looks at an entire stream network and uses more detailed, high-resolution data to show that important stream characteristics also vary across the entire headwater stream system.

For example, concentrations of biologically important nutrients such as nitrogen and carbon may vary significantly along individual tributaries, but also among tributaries or on east- versus west-facing slopes in the same network.

"These other large scale patterns of variation could be important for water quality monitoring and the management of aquatic species that rely on healthy streams and rivers," Lowe said. "Until now, we have not had the high-resolution data or statistical methods needed to detect these broader patterns of variation."

He notes that this research will give other scientists and land managers a new way to study aquatic ecosystems in headwater stream systems.


Story Source:

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


Journal Reference:

  1. K. J. McGuire, C. E. Torgersen, G. E. Likens, D. C. Buso, W. H. Lowe, S. W. Bailey. Network analysis reveals multiscale controls on streamwater chemistry. Proceedings of the National Academy of Sciences, 2014; DOI: 10.1073/pnas.1404820111

Cite This Page:

The University of Montana. "New research focuses on streamwater chemistry, landscape variation." ScienceDaily. ScienceDaily, 22 April 2014. <www.sciencedaily.com/releases/2014/04/140422134638.htm>.
The University of Montana. (2014, April 22). New research focuses on streamwater chemistry, landscape variation. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2014/04/140422134638.htm
The University of Montana. "New research focuses on streamwater chemistry, landscape variation." ScienceDaily. www.sciencedaily.com/releases/2014/04/140422134638.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Computers & Math News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Humanoid Robot Can Recognise and Interact With People

Humanoid Robot Can Recognise and Interact With People

Reuters - Innovations Video Online (Apr. 20, 2015) An ultra-realistic humanoid robot called &apos;Han&apos; recognises and interprets people&apos;s facial expressions and can even hold simple conversations. Developers Hanson Robotics hope androids like Han could have uses in hospitality and health care industries where face-to-face communication is vital. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Drones and Health Apps at Santiago's "Robotics Day"

Drones and Health Apps at Santiago's "Robotics Day"

AFP (Apr. 20, 2015) Latin American robotics experts gather in Santiago, Chile for "Robotics Day". Video provided by AFP
Powered by NewsLook.com
Japan Humanoid Robot Receives Customers at Department Store

Japan Humanoid Robot Receives Customers at Department Store

AFP (Apr. 20, 2015) She can smile, she can sing and she can give you guidance at one of the most upscale department stores in Tokyo...a female-looking humanoid makes her debut as a receptionist Video provided by AFP
Powered by NewsLook.com
Pending Comcast-Time Warner Merger Has DOJ, FCC Concerned

Pending Comcast-Time Warner Merger Has DOJ, FCC Concerned

Newsy (Apr. 20, 2015) The Department of Justice reportedly has concerns a Time Warner-Comcast merger would create an entity too large in the cable and broadband markets. 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:

More Coverage


Improving Understanding of Valley-Wide Stream Chemistry

Apr. 21, 2014 Understanding the chemistry of streams at a finer scale could help to identify factors impairing water quality and help protect aquatic ecosystems. A geostatistical approach for studying ... read more

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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