Navigation Links
Losing more than we gain from autumn warming in the north
Date:1/2/2008

An international study investigating the carbon sink capacity of northern terrestrial ecosystems discovered that the duration of the net carbon uptake period (CUP) has on average decreased due to warmer autumn temperatures.

Net carbon uptake of northern ecosystems is decreasing in response to autumnal warming according to findings recently published January 3rd, in the journal Nature. The carbon balance of terrestrial ecosystems is particularly sensitive to climatic changes in autumn and spring. Over the past two decades autumn temperatures in northern latitudes have risen by about 1.1 C with spring temperatures up by 0.8 C.

Many northern terrestrial ecosystems currently lose carbon dioxide (CO2) in response to autumn warming, offsetting 90% of the increased carbon dioxide uptake during spring. Using computer modeling to integrate forest canopy measurements and remote satellite data, researchers found that while warm spring temperatures accelerate growth more than soil decomposition and enhance carbon uptake, autumn warming greatly increases soil decomposition and significantly reduces carbon uptake.

Lead author of the study, Dr. Shilong Piao from the LSCE, UMR CEA-CNRS,in France says If warming in autumn occurs at a faster rate than in spring, the ability of northern ecosystems to sequester carbon will diminish in the future.

Philippe Ciais also, a member of the research team and a scientist from the Global Carbon Project says The potentially rapid decline in the future ability of northern terrestrial ecosystems to remove atmospheric carbon dioxide would make stabilization of atmospheric CO2 concentrations much harder than currently predicted.


'/>"/>

Contact: Pep Canadell
Pep.Canadell@csiro.au
61-407-068-930
Global Carbon Project
Source:Eurekalert

Page: 1

Related biology news :

1. Upper Midwest forests are losing diversity, complexity, ISU study finds
2. Major genetic breakthrough for ankylosing spondylitis brings treatment hope
3. Safe and effective therapy discovered for patients with protein-losing enteropathy
4. Why do autumn leaves bother to turn red?
5. Global Warming and the Habitability of Planet Earth, Sept. 26
6. Green skies: Engineers work may reduce jet travels role in global warming
7. North Americas northernmost lake affected by global warming
8. Majority of Americans want local action on global warming, says poll
9. Agricultural soil erosion is not adding to global warming
10. Engineered weathering process could mitigate global warming
11. TAU professor finds global warming is melting soft coral
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/3/2017)...  Data captured by IsoCode, IsoPlexis Corporation,s ... statistically significant association between the potency of ... objective response of cancer patients post-treatment. The ... cancer patients will respond to CAR-T cell ... to improve both pre-infusion potency testing and cell ...
(Date:3/30/2017)... The research team of The Hong Kong Polytechnic University ... adopting ground breaking 3D fingerprint minutiae recovery and matching technology, pushing ... for use in identification, crime investigation, immigration control, security of access ... ... A research team led by Dr Ajay ...
(Date:3/29/2017)... , March 29, 2017  higi, the health ... in North America , today announced ... and the acquisition of EveryMove. The new investment and ... set of tools to transform population health activities through ... lifestyle data. higi collects and secures data ...
Breaking Biology News(10 mins):
(Date:4/27/2017)... , ... April 27, 2017 , ... ... for digital pathology, today announced their digital pathology technology has the potential to ... by five medical centers in The Netherlands as part of the 2017 ...
(Date:4/27/2017)... California (PRWEB) , ... April 27, 2017 , ... ... new infographic explaining why mass flow controllers based on capillary thermal mass flow ... industrial gas mass flow control applications. Over 80% of all industrial processes—such ...
(Date:4/27/2017)... -- Kinexum, a distinguished resource for research, development and commercialization ... Thomas C. Seoh as President and CEO. Mr. ... who becomes Executive Chairman and will continue to serve ... Thomas Seoh commented, "I am excited and ... the firm,s remarkable team of life science professionals, all ...
(Date:4/26/2017)... ... April 26, 2017 , ... Baltimore bio tech firm, ... security screening solution at the National Postal Forum 2017 in Baltimore, Maryland, May ... highly accurate, easy to use and low cost threat detection solution for government ...
Breaking Biology Technology: