Navigation Links
Industrialization weakens important carbon sink
Date:11/29/2011

Australian scientists have reconstructed the past six thousand years in estuary sedimentation records to look for changes in plant and algae abundance. Their findings, published in Global Change Biology, show an increase in microalgae relative to seagrass in the past 60 years. This shift could diminish the ability of estuaries, which are natural global carbon sinks, to mitigate climate change.

According to Dr. Peter Macreadie, University of Technology, Sydney Chancellor's Postdoctoral Research Fellow, "We have effectively gone back in time and monitored carbon capture and storage by coastal ecosystems, finding a 100-fold weakening in the ability of coastal ecosystems to sequester carbon since the time of European settlement. This severely hampered the ability of nature to reset the planet's thermostat."

Scientists collected cores, samples of earth, from sites within and around Botany Bay, Sydney. A chronology for the cores was determined using radiocarbon dating. Changes in plant and algae composition over time were then determined according to the change in the isotopic ratio of the organic matter in the sediment.

The team's analysis suggests that the relative reduction in seagrass and increase in microalgae coincided with a time of rapid industrial expansion and increased nitrogen deposition. These findings are critical because plants such as seagrass have a relatively large carbon sink capacity, which plays a critical role in mitigating climate change.

"Unfortunately, this outcome is common to urbanized estuaries throughout the world, therefore the study adds further support for the inclusion of Blue Carbon habitats (seagrasses, saltmarshes, and mangroves) in greenhouse gas abatement schemes," said Dr. Macreadie.

This research demonstrates that human activities have weakened the sink capacity of Botany Bay, and this is likely to occur in other coastal ecosystems.


'/>"/>

Contact: Rhea Kressman
gcb@life.illinois.edu
217-333-9651
Wiley-Blackwell
Source:Eurekalert  

Page: 1

Related biology news :

1. Diabetes weakens your bones
2. Structures of important plant viruses determined
3. Important new hair-loss gene discovered
4. The Camille & Henry Dreyfus Foundation to host important symposium on chemistry and the environment
5. Mysterious microbe may play important role in ocean ecology
6. Mysterious microbe plays important role in ocean ecology
7. Alpine rivers hold important clues for preserving biodiversity and coping with climate change
8. New research shows how gene function drives natural selection in important class of genetic elements
9. NC State study finds genes important to sleep
10. Cleft lip and palate: Genes more important than thought?
11. Greatest thing since sliced bread: New data offer important clues toward improving wheat yields
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Industrialization weakens important carbon sink
(Date:6/2/2016)... , June 2, 2016   The Weather Company , ... Watson Ads, an industry-first capability in which consumers will be ... able to ask questions via voice or text and receive ... Marketers have long sought an advertising ... that can be personal, relevant and valuable; and can scale ...
(Date:6/1/2016)... , June 1, 2016 Favorable ... Election Administration and Criminal Identification to Boost Global Biometrics ... recently released TechSci Research report, " Global Biometrics Market ... Competition Forecast and Opportunities, 2011 - 2021", the global ... by 2021, on account of growing security concerns across ...
(Date:5/20/2016)... , May 20, 2016  VoiceIt is excited ... with VoicePass. By working together, VoiceIt ...  Because VoiceIt and VoicePass take slightly different approaches ... increases both security and usability. ... about this new partnership. "This marketing ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... San Diego, CA (PRWEB) , ... June 27, 2016 , ... ... mClinical solutions for clinical trials, announced today the Clinical Reach Virtual Patient ... and their care circle with the physician and clinical trial team. , Using the ...
(Date:6/27/2016)... ... June 27, 2016 , ... ... Amgen, will join the faculty of the University of North Carolina Kenan-Flagler ... of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on the school’s ...
(Date:6/27/2016)... 27, 2016   Ginkgo Bioworks , a leading ... was today awarded as one of the World ... world,s most innovative companies. Ginkgo Bioworks is engineering ... real world in the nutrition, health and consumer ... with customers including Fortune 500 companies to design ...
(Date:6/24/2016)... Epic Sciences unveiled a liquid biopsy ... PARP inhibitors by targeting homologous recombination deficiency (HRD) ... test has already been incorporated into numerous clinical ... Over 230 clinical trials are investigating ... PARP, ATM, ATR, DNA-PK and WEE-1. Drugs targeting ...
Breaking Biology Technology: