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:6/27/2016)... June 27, 2016 Research and Markets has ... 2016-2020" report to their offering. ... America to grow at a CAGR of 12.28% during ... based on an in-depth market analysis with inputs from industry experts. ... the coming years. The report also includes a discussion of the ...
(Date:6/22/2016)... BETHESDA, Md. , June 22, 2016  The American ... by Trade Show Executive Magazine as one of ... Summit on May 25-27 at the Bellagio in ... based on the highest percentage of growth in each of ... number of exhibiting companies and number of attendees. The 2015 ...
(Date:6/22/2016)... LOS ANGELES , June 22, 2016 ... of identity management and verification solutions, has ... cutting edge software solutions for Visitor Management, ... ® provides products that add functional ... The partnership provides corporations and venues with ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Francisco, CA (PRWEB) , ... June 23, 2016 ... ... (EDC) software, is exhibiting at the Pennsylvania Convention Center and will showcase its ... Annual conference. ClinCapture will also be presenting a scientific poster on Disrupting Clinical ...
(Date:6/23/2016)... Windsor, Connecticut (PRWEB) , ... June 23, 2016 ... ... will introduce a new line of intelligent tools designed, tuned and optimized exclusively ... place September 12–17 in Chicago. The result of a collaboration among several companies ...
(Date:6/23/2016)... , June 23, 2016 ... research report to its pharmaceuticals section with historic ... details and much more. Complete report ... 151 pages, profiling 15 companies and supported with ... http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . The Global ...
(Date:6/22/2016)... , June 22, 2016 Research and Markets ... Markets" report to their offering. ... in 2014 from $29.3 billion in 2013. The market is expected ... 13.8% from 2015 to 2020, increasing from $50.6 billion in 2015 ... product forecasts during the forecast period (2015 to 2020) are discussed. ...
Breaking Biology Technology: