Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Artificial wetlands can provide benefits over the long haul

07.03.2012
A study of created wetlands provides insights into the environmental benefits they provide and how these changed over 15 years

Wetlands created to replace those lost to environmental degradation or development take up carbon from the atmosphere and so potentially reduce greenhouse warming, a unique 15-year study suggests. Such artificial wetlands caused emissions of methane, which may contribute to warming, smaller than those from natural wetlands.

William J. Mitsch, of the University of Florida Gulf Coast University in Naples and his colleagues, describe the development of two 1-hectare wetlands in Ohio created by pumping water from the nearby Olentangy river, starting in 1994. One was manually planted with vegetation, and the other was left to develop naturally.

The results, reported in the March issue of BioScience, show that over time the manually planted and the unplanted wetlands differed principally in the variety of plants present and in how much gas they exchanged with the atmosphere. The manually planted wetland showed more variety, but the unplanted one took up more carbon from the atmosphere. Methane emissions from the unplanted wetland, unlike the planted one, meant that it was estimated to contribute slightly to net greenhouse warming. Both created wetlands, however, removed large amounts of nitrogen and phosphorus from the incoming river water. Emissions of nitrous oxide, which can also increase warming, were small.

This study may prove useful as a model for future wetland reclamation or replacement projects and for determining the amount of human intervention that is necessary for these projects to be successful. The article also provides an example of the benefits of long-term ecological research, since species diversity stabilized only after about five years, and the amount of carbon retained in the soil continued to increase over the entire study.

BioScience, published monthly, is the journal of the American Institute of Biological Sciences (AIBS; www.aibs.org). BioScience is a forum for integrating the life sciences that publishes commentary and peer-reviewed articles. The journal has been published since 1964. AIBS is an umbrella organization for professional scientific societies and organizations that are involved with biology. It represents nearly 160 member societies and organizations. The article by Mitsch and colleagues is available during the month of March at http://www.aibs.org/bioscience-press-releases/

The complete list of peer-reviewed articles in the March 2012 issue of BioScience is as follows:

Integrating Ecology and Environmental Ethics: Earth Stewardship in the Southern End of the Americas.

Ricardo Rozzi, Juan J. Armesto, Julio R. Gutiérrez, Francisca Massardo, Christopher B. Anderson, Gene E. Likens, Alexandria Poole, Kelli P. Moses, Eugene Hargrove, Andres O. Mansilla, James H. Kennedy, Mary Willson, Kurt Jax, Clive G. Jones, J. Baird Callicott, and Mary T. K. Arroyo

Creating Wetlands: Primary Succession, Water Quality Changes, and Self-Design over 15 Years.

William J. Mitsch, Li Zhang, Kay C. Stefanik, Amanda M. Nahlik, Christopher J. Anderson, Blanca Bernal, Maria Hernandez, and Keunyea Song

Beyond the Environmentalist's Paradox and the Debate on Weak versus Strong Sustainability.

Frederic Ang and Steven Van Passel

The World's Zoogeographical Regions Confirmed by Cross-Taxon Analyses.
ªerban Procheº and Syd Ramdhani
The Size, Concentration, and Growth of Biodiversity-Conservation Nonprofits
Paul R. Armsworth, Isla S. Fishburn, Zoe G. Davies, Jennifer Gilbert, Natasha Leaver, and Kevin J. Gaston
Research Coordination Networks: Evidence of the Relationship between Funded Interdisciplinary Networking and Scholarly Impact.

Alan L. Porter, Jon Garner, and Todd Crowl

A New Framework for Assessing the Effects of Anthropogenic Sound on Marine Mammals in a Rapidly Changing Arctic.

Sue E. Moore, Randall R. Reeves, Brandon L. Southall, Timothy J. Ragen, Robert S. Suydam, and Christopher W. Clark

A New Model for Training Graduate Students to Conduct Interdisciplinary, Interorganizational, and International Research.

Amanda H. Schmidt, Alicia S. T. Robbins, Julie K. Combs, Adam Freeburg, Robert G. Jesperson, Haldre S. Rogers, Kimberly S. Sheldon, and Elizabeth Wheat

Tim Beardsley | EurekAlert!
Further information:
http://www.aibs.org

More articles from Ecology, The Environment and Conservation:

nachricht Urban growth causes more biodiversity loss outside of cities
10.12.2019 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Wie ganze Ökosysteme langfristig auf die Erderwärmung reagieren
10.12.2019 | Universität Wien

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Highly charged ion paves the way towards new physics

In a joint experimental and theoretical work performed at the Heidelberg Max Planck Institute for Nuclear Physics, an international team of physicists detected for the first time an orbital crossing in the highly charged ion Pr⁹⁺. Optical spectra were recorded employing an electron beam ion trap and analysed with the aid of atomic structure calculations. A proposed nHz-wide transition has been identified and its energy was determined with high precision. Theory predicts a very high sensitivity to new physics and extremely low susceptibility to external perturbations for this “clock line” making it a unique candidate for proposed precision studies.

Laser spectroscopy of neutral atoms and singly charged ions has reached astonishing precision by merit of a chain of technological advances during the past...

Im Focus: Ultrafast stimulated emission microscopy of single nanocrystals in Science

The ability to investigate the dynamics of single particle at the nano-scale and femtosecond level remained an unfathomed dream for years. It was not until the dawn of the 21st century that nanotechnology and femtoscience gradually merged together and the first ultrafast microscopy of individual quantum dots (QDs) and molecules was accomplished.

Ultrafast microscopy studies entirely rely on detecting nanoparticles or single molecules with luminescence techniques, which require efficient emitters to...

Im Focus: How to induce magnetism in graphene

Graphene, a two-dimensional structure made of carbon, is a material with excellent mechanical, electronic and optical properties. However, it did not seem suitable for magnetic applications. Together with international partners, Empa researchers have now succeeded in synthesizing a unique nanographene predicted in the 1970s, which conclusively demonstrates that carbon in very specific forms has magnetic properties that could permit future spintronic applications. The results have just been published in the renowned journal Nature Nanotechnology.

Depending on the shape and orientation of their edges, graphene nanostructures (also known as nanographenes) can have very different properties – for example,...

Im Focus: Electronic map reveals 'rules of the road' in superconductor

Band structure map exposes iron selenide's enigmatic electronic signature

Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, Rice University physicists have drawn a detailed map that reveals...

Im Focus: Developing a digital twin

University of Texas and MIT researchers create virtual UAVs that can predict vehicle health, enable autonomous decision-making

In the not too distant future, we can expect to see our skies filled with unmanned aerial vehicles (UAVs) delivering packages, maybe even people, from location...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

The Future of Work

03.12.2019 | Event News

First International Conference on Agrophotovoltaics in August 2020

15.11.2019 | Event News

Laser Symposium on Electromobility in Aachen: trends for the mobility revolution

15.11.2019 | Event News

 
Latest News

One-third of recent global methane increase comes from tropical Africa

11.12.2019 | Earth Sciences

Creating switchable plasmons in plastics

11.12.2019 | Physics and Astronomy

The Antarctic: study from Kiel provides data about the structure of the icy continent

11.12.2019 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>