Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Site-specific, Long-term Research Expanding Understanding of Climate Change

06.12.2012
While science has often focused on big-scale, global climate change research, a study published today in the journal Bioscience suggests that long-term, integrated and site-specific research is needed to understand how climate change affects multiple components of ecosystem structure and function, sometimes in surprising ways.
“Long-term ecological research is important to understanding the effects of a changing climate on our natural resources and so much more,” said Michael T. Rains, Director of the Forest Service’s Northern Research Station. “With a network of more than 80 experimental forests and decades of monitoring data from these forests, the Forest Service is contributing invaluable information to this and a wide-range of critical research topics.”

Research at the Forest Service’s Hubbard Brook Experimental Forest in New Hampshire’s White Mountains forms the basis for the article “Long-Term Integrated Studies Show Complex and Surprising Effects of Climate Change in the Northern Hardwood Forest,” by Peter Groffman of the Cary Institute of Ecosystem Studies with Forest Service scientists Lindsey Rustad and John Campbell and others. The paper describes how the interplay of climate, forest ecosystem dynamics, and past land use determines how an individual forest might respond to climate change.

At the Hubbard Brook Experimental Forest, that interplay has produced surprising effects on hydrologic variables such as evapotranspiration, streamflow, and soil moisture and revealed the importance of changes in phenology on water, carbon, and nitrogen fluxes during seasonal transition periods. Scientists have also found surprises in winter climate change effects on plant and animal community composition and ecosystem services as well as the effects of anthropogenic disturbances and land-use history on plant community composition.

“The effects of climate change that we are documenting at the Hubbard Brook Experimental Forest truly affect all components of this forest,” according to Rustad. “From winter recreation to Lyme Disease to changes in timber resources, what is happening in the forest is going to affect how people live, and science needs to address those questions.”

Data from Hubbard Brook Experimental Forest show unequivocally that the climate has warmed, and temperature matters for species from the minute to the mighty. A warming climate is

increasing the length of the growing seasons, as spring is advancing and fall is retreating. This extends the breeding season for birds, but also makes them more susceptible to late season frosts. Less snow in winter means more soil frost, which can damage tree roots and reduce the diversity and abundance of arthropods. Reductions in soil arthropods may directly affect the animals that feed on them, with ripple effects on the entire forest food web.

Warming winters also affect the distribution of pests and pathogens, such as the hemlock woolly adelgid, which are fundamental agents of disturbance in northeast forests. The insect’s expansion north has been checked by its inability to tolerate temperatures colder than 13 degrees Fahrenheit, however researchers found that over the past 50 years Hubbard Brook Experimental Forest has experienced a 40 percent decline in days with a mean temperature of 13 degrees Fahrenheit, suggesting a potential for the hemlock woolly adelgid to affect hemlock throughout the tree’s entire range within the next 30 years.

The Hubbard Brook Experimental Forest is a 7,200-acre, bowl-shaped valley located in the southern part of the White Mountains of New Hampshire. One of 80 experimental forests within the U.S. Forest Service’s Research and Development arm, Hubbard Brook Experimental Forest has served as an outdoor laboratory for ecological study since 1955. Forest Service scientists as well as scientists from agencies and universities throughout the world have studied the quantity and chemistry of water going into the forest in precipitation and out of the forest in stream water at Hubbard Brook Experimental Forest.

The mission of the U.S. Forest Service is to sustain the health, diversity, and productivity of the nation’s forests and grasslands to meet the needs of present and future generations. The agency manages 193 million acres of public land, provides assistance to state and private landowners, and maintains the largest forestry research organization in the world. The mission of the Forest Service’s Northern Research Station is to improve people’s lives and help sustain the natural resources in the Northeast and Midwest through leading-edge science and effective information delivery.

Jane Hodgins | EurekAlert!
Further information:
http://www.fs.fed.us

More articles from Ecology, The Environment and Conservation:

nachricht Dune ecosystem modelling
23.06.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht Understanding animal social networks can aid wildlife conservation
23.06.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

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: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>