Navigation Links
Amazon carbon sink threatened by drought
Date:3/5/2009

n botanist and co-author Abel Monteagudo, "showing that drought threatens biodiversity too."

The Amazon accounts for more than half of the world's rainforest, covering an area 25 times as great as the United Kingdom. No other ecosystem on Earth is home to so many species nor exerts such control on the carbon cycle.

The study involved 68 scientists from 13 countries working in RAINFOR, a unique research network dedicated to monitoring the Amazonian forests.

To calculate changes in carbon storage they examined more than 100 forest plots across the Amazon's 600 million hectares, identified and measured over 100,000 trees, and recorded tree deaths as well as new trees. Weather patterns were also carefully measured and mapped.

In the wake of the 2005 drought the RAINFOR team took advantage of this huge natural experiment, and focused their measurements to assess how the drought had affected the forest.

The study found that for at least 25 years the Amazon forest acted as a vast carbon sink. A similar process has also been occurring in Africa.

In fact, over recent decades the tropical forests have absorbed one fifth of global fossil fuel emissions.

But in 2005 this process was reversed. Tree death accelerated most where drought was strongest, and locations subject even to mild drying were affected. Because of the study, we now know the precise sensitivity of the Amazon to warming and drought.

If repeated, Amazon droughts will accelerate climate warming and make future droughts even more damaging.


'/>"/>

Contact: Clare Ryan
c.s.ryan@leeds.ac.uk
44-113-343-8059
University of Leeds
Source:Eurekalert

Page: 1 2

Related biology news :

1. Statement by Sandy Andelman, co-author of Drought sensitivity of the Amazon Rainforest
2. Diversity of trees in Ecuadors Amazon rainforest defies simple explanation
3. Yale undergrads Amazon trip yields a treasure trove of diversity
4. Extinction most likely for rare trees in the Amazon rainforest
5. Rutgers biologist to study worms in Amazon, glaciers
6. Study suggests past climate changes may have promoted the formation of new species in the Amazon
7. Amazon powers tropical oceans carbon sink
8. Workshop assesses interactions between climate, forests and land use in the Amazon Basin
9. Amazon corridors far too narrow, warn scientists
10. Present-day species of piranha result from a marine incursion into the Amazon Basin
11. Univ. of Arizona receives $2.5 million to study Amazon forests and climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/29/2014)... researcher from the University of Texas Medical Branch at Galveston ... monoclonal antibodies can completely protect monkeys against a lethal dose ... a time when the disease is severe. , Thomas Geisbert, ... Nature discussing advances in Ebola treatment research. The ... the most deadly of pathogens, with fatality rates of up ...
(Date:8/29/2014)... the type and number of connections in transcription factor ... robustness in a study published in PLOS Computational ... the assortativity signature contributes to a network,s resilience against ... the out-out assortativity of TFN models has a greater ... three types of assortativity," said Dov A. Pechenick, PhD, ...
(Date:8/29/2014)... is available in German . ... between organisms is considered the oldest form of communication. ... conspecifics, for example, the sexual attraction between males and ... and to coordinate reproductive behavior in males and females. ... of the Algarve in Faro, Portugal, and at the ...
Breaking Biology News(10 mins):Leading Ebola researcher at UTMB says there's an effective treatment for Ebola 2Assortativity signatures of transcription factor networks contribute to robustness 2Ready for mating at the right time 2Ready for mating at the right time 3
... animal compares males to choose a mate, she can't order ... to rely on external cues that may indicate genetic quality. ... the peacock's tail, as cues that females might use. , ... between male genetic quality and ornament quality can be maintained. ...
... progenitor cells differentiate into cartilage cells when one master ... College of Medicine researchers in a report that appears ... of Sciences. , Skeletons are made of bone and ... stem cell, said Dr. Brendan Lee, associate professor of ...
... into brain cells on a new three-dimensional scaffold of ... living body than any other cell culture system. , ... invention-which may one day replace the ubiquitous Petri dish ... PLoS ONE. Shuguang Zhang, associate director of MIT's Center ...
Cached Biology News:Female pronghorns choose mate based on substance as well as show 2Signaling for cartilage 2MIT creates 3-D scaffold for growing stem cells 2MIT creates 3-D scaffold for growing stem cells 3
(Date:8/29/2014)... 2014 Three Lawrence Livermore researchers ... Hydrogen Production R&D Award for their research ... using sunlight. , Shared with collaborators from the ... of Nevada, Las Vegas (UNLV), the award recognizes ... photoelectrochemical solar-hydrogen production and corrosion processes. , These ...
(Date:8/29/2014)... Boston, MA, San Antonio, TX (PRWEB) August 29, ... audited, ISO 9001:2008 and ISO 13485:2003 certified, GAMP® ... it has been awarded an international Phase II ... patients with non-Hodgkin’s lymphoma. , Throughout this trial, ... services including, but not limited to, protocol and ...
(Date:8/28/2014)... Best Sanitizers, Inc., the first company to ... asks food processors and food handling professionals to prepare ... currently using to Best Sanitizers’ Alpet® E3 Plus ... fighting cross-contamination and the spread of pathogens in the ... key criteria that make a hand sanitizer most effective, ...
(Date:8/28/2014)... are important devices in spintronics, an electronic which ... electrons but also on their spin and the ... electric into magnetic signals and vice versa. Recently, ... the Institute of Physics at Johannes Gutenberg University ... Prague, and Japan, has for the first time ...
Breaking Biology Technology:Livermore Team Awarded for Hydrogen Production Research 2Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3A new, tunable device for spintronics 2A new, tunable device for spintronics 3
... 10 Cambridge Research &,Instrumentation, Inc. (CRi) announces ... that converts any brightfield or,fluorescent microscope into a ... larger specimens, such as embryos,zebrafish, plants, tissue culture ... onto a fluorescent macroscope. The Nuance 2 system ...
... Faster, Easier,Quantification of Protein Biomarkers in Translational Medicine and Adaptive ... ... WALTHAM, Mass., Dec. 10 Decision Biomarkers Inc (DBI),a leading ... today announced the company,s,PATH(R) technology has been awarded United States ...
... International,(Nasdaq: PRXL ) has appointed Charles A. ... Policy and Strategic Reimbursement Services, a,unit based in ... team of,experts dedicated to helping PAREXEL,s clients provide ... and therapies they require. His,responsibilities include managing reimbursement ...
Cached Biology Technology:CRi Announces Nuance 2, the Next-Generation Multispectral Imaging System for Brightfield and Fluorescent-Based Microscopy 2Decision Biomarkers Awarded U.S. Patent for Protein Array Surface Chemistry 2PAREXEL Appoints Charles A. Stevens as Vice President/General Manager of Health Policy and Strategic Reimbursement and Strengthens Capabilities 2PAREXEL Appoints Charles A. Stevens as Vice President/General Manager of Health Policy and Strategic Reimbursement and Strengthens Capabilities 3PAREXEL Appoints Charles A. Stevens as Vice President/General Manager of Health Policy and Strategic Reimbursement and Strengthens Capabilities 4PAREXEL Appoints Charles A. Stevens as Vice President/General Manager of Health Policy and Strategic Reimbursement and Strengthens Capabilities 5
... Labsystems Wellmix is a high-quality four-place microplate ... The shaking speed is adjustable from 100 ... speed and a small orbit ensure effective ... time is quick and easy to set ...
Mouse monoclonal [AZ24] to Polo like kinase ( Abpromise for all tested applications)....
... The dotLab System brings together ... diffraction and immobilized capture surfaces. This ... simple technique for the detection of ... of fluorescent labels. , Protein-specific capture ...
... LabWorks Software provides a comprehensive experiment ... use drop down menus yet sophisticated and ... with dozens of CCD cameras for easy ... , Automated Digital Video Playback ...
Biology Products: