Navigation Links
USDA scientists study effects of rising carbon dioxide on rangelands
Date:8/3/2011

This press release is available in Spanish.

Rising carbon dioxide (CO2) levels can reverse the drying effects of predicted higher temperatures on semi-arid rangelands, according to a study published today in the scientific journal Nature by a team of U.S. Department of Agriculture (USDA) and university scientists.

Warmer temperatures increase water loss to the atmosphere, leading to drier soils. In contrast, higher CO2 levels cause leaf stomatal pores to partly close, lessening the amount of water vapor that escapes and the amount of water plants draw from soil. This new study finds that CO2 does more to counterbalance warming-induced water loss than previously expected. In fact, simulations of levels of warming and CO2 predicted for later this century demonstrated no net change in soil water, and actually increased levels of plant growth for warm-season grasses.

"By combining higher temperatures with elevated CO2 levels in an experiment on actual rangeland, these researchers are developing the scientific knowledge base to help prepare managers of the world's rangelands for what is likely to happen as climate changes in the future," said Edward B. Knipling, administrator of the Agricultural Research Service (ARS), USDA's principal intramural scientific research agency.

The results cover the first four years of the eight-year Prairie Heating and CO2 Enrichment (PHACE) experiment on native northern mixed grass rangeland. The study is being conducted by the ARS Rangeland Resources Research Unit (RRRU) at the High Plains Grasslands Research Station near Cheyenne, Wyo.

ARS plant physiologist Jack Morgan leads the study, which uses both CO2 pipelines and thermal infrared heaters to simulate global warming conditions predicted for the end of the century: 600 parts per million (ppm) of CO2compared to today's average 390 ppm
'/>"/>

Contact: Don Comis
Donald.Comis@ars.usda.gov
301-504-1625
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... reveal the interplay of brain chemicals which help us ... and BBSRC. , By changing the way neurons ... While these changes can affect the strength of a ... that response. , Lead author Alex Thiele, ... others, you can make yourself better heard by speaking ...
(Date:5/22/2013)... Trial (NLST) investigators also conclude that the 20 ... computed tomography (LDCT) versus chest X-ray (CXR) screening ... achievable at experienced screening centers in the United ... share with their patients about the benefits and ... publication in the New England Journal of ...
(Date:5/22/2013)... must join together in a major new effort to ... in providing Earth,s people with clean water that looms ... a comment article in the current edition of ... the American Chemical Society (ACS), the world,s largest scientific ... Ph.D., and Jerald L. Schnoor, Ph.D., explain that shortages ...
Breaking Biology News(10 mins):NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 2NLST: CT detects twice as many lung cancers as X-ray at initial screening exam 3
... shows that male suitors of a female cannibalistic spider ... adequate courtship lasting a minimum of 100 minutes. ... by and mate successfully on the courtship efforts of ... University of Toronto Scarborough have published a research paper ...
... used by physicians to perform magnetic resonance imaging (MRI) ... Standards and Technology (NIST)working at the Hollings Marine Laboratory ... of a pathogen shown to cause coral bleaching, a ... bleaching is the whitening of living coral due to ...
... The American Dietetic Association welcomes a report issued ... federal school meal programs to adopt standards that increase ... served to schoolchildren. "The IOM,s positive and progressive ... the American Dietetic Association has been making for a ...
Cached Biology News:Male Australian redback spiders employ courtship strategies to preserve their life 2The white stuff: Marine lab team seeks to understand coral bleaching 2American Dietetic Association supports IOM recommendations on school meal programs 2American Dietetic Association supports IOM recommendations on school meal programs 3
(Date:5/23/2013)...  Saddleback Memorial Medical Center in Laguna ... on the West Coast to perform a hysterectomy using ... women with a state-of-the-art, minimally invasive approach to gynecological ... , M.D., a highly regarded Orange County ... minimally invasive surgery at Saddleback Memorial, led the surgical ...
(Date:5/23/2013)... Z Trim Holdings, Inc. (OTC Markets: ZTHO), ... of industries, announced that Chef Erin Ryan ... year,s National Restaurant Association ("NRA") NRA Show, which was ... Research Chefs Association.  Chef Ryan spoke on the subject ... and the Ugly," joining four other prestigious panelists including: ...
(Date:5/23/2013)... May 23, 2013  Verenium Corporation (Nasdaq: ... the development and commercialization of high-performance enzymes, today announced ... Officer, will present at two upcoming conferences. ... present at the Second Annual Marcum LLP Microcap Conference ... Hotel in New York City.  The presentation is scheduled ...
(Date:5/23/2013)... Washington, DC (PRWEB) May 23, 2013 ... of genetics-based ancestry tracing for people of African ... myDNAmix Admixture product offering. For people of all ... genetic make-up from five distinct populations: Indigenous Americas ... Europe and India Subcontinent. , Originally ...
Breaking Biology Technology:Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 2Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 3Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 2Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 3Verenium To Present At Two Upcoming Conferences 2Verenium To Present At Two Upcoming Conferences 3AfricanAncestry.com Rolls Out Improved MyDNAMix Admixture Test for People of all Races; Enhancements Increase Accuracy in Estimation of Ancestral Makeup 2AfricanAncestry.com Rolls Out Improved MyDNAMix Admixture Test for People of all Races; Enhancements Increase Accuracy in Estimation of Ancestral Makeup 3
... , , NAVIGATE THIS ARTICLE: ... > <A , href="#3">RNA , ... Transfer > <A , ... href="#6">Stripping , & Reprobing , , ...
... Gene arrays are solid supports upon which a , ... placed at , defined locations, ... array analysis, a nucleic acid-containing sample is labeled , ... on the array. (In the literature, the term "target" can ...
... One of the RNA silencing ... for the synthesis of siRNA, , the ... href="http://www.ambion.com/catalog/CatNum.php?16000"> siRNA , ... RNAs of several different sequences need to be made, it can ...
Cached Biology Technology:Northern Analysis: The Basics 2Northern Analysis: The Basics 3Northern Analysis: The Basics 4Northern Analysis: The Basics 5Northern Analysis: The Basics 6Northern Analysis: The Basics 7Northern Analysis: The Basics 8Northern Analysis: The Basics 9Northern Analysis: The Basics 10Northern Analysis: The Basics 11Northern Analysis: The Basics 12Northern Analysis: The Basics 13Northern Analysis: The Basics 14Northern Analysis: The Basics 15Northern Analysis: The Basics 16Northern Analysis: The Basics 17Northern Analysis: The Basics 18Northern Analysis: The Basics 19Array Analysis: The Basics 2Array Analysis: The Basics 3Array Analysis: The Basics 4Array Analysis: The Basics 5Your Data: Silencing of a Pro-apoptotic Transcription Factor Using Synthetic siRNA 2Your Data: Silencing of a Pro-apoptotic Transcription Factor Using Synthetic siRNA 3
RABBIT ANTI ISOCITRATE DEHYDROGENASE...
dithiothreitol (DTT) Reactive Dyes and Chemicals Thiol-Reactive Dyes, Haptens and Quenchers Reducing Agents...
Recombinant Equine IL-4, CF...
VACUGENE PUMP 110V, 1 EA. Category: Nucleid Acid Detection Systems....
Biology Products: