Navigation Links
Surface-level ozone pollution set to reduce tree growth 10 percent by 2100
Date:12/9/2008

Modern day concentrations of ground level ozone pollution are decreasing the growth of trees in the northern and temperate mid-latitudes, as shown in a paper publishing today in Global Change Biology. Tree growth, measured in biomass, is already 7% less than the late 1800s, and this is set to increase to a 17% reduction by the end of the century.

Ozone pollution is four times greater now than prior to the Industrial Revolution in the mid-1700s; if modern dependence on fossil fuels continues at the current pace, future ozone concentrations will be at least double current levels by the end of this century with the capacity to further decrease the growth of trees.

The study is the first statistical summary of individual experimental measurements of how ozone will damage the productivity of trees, including data from 263 peer-reviewed scientific publications.

Ozone is the third strongest greenhouse gas, directly contributing to global warming, and is the air pollutant considered to be the most damaging to plants. But more importantly, it has the potential to leave more carbon dioxide, ranked as the first strongest greenhouse gas, in the atmosphere by decreasing carbon assimilation in trees. Ozone pollution occurs when nitrogen oxides have a photochemical reaction with volatile organic compounds.

"This research quantifies the mean response of trees to ozone pollution measured in terms of total tree biomass, and all component parts such as leaf, root and shoot, lost due to ozone pollution," said Dr. Victoria Wittig, lead author of the study. "Looking at how ozone pollution affects trees is important because of the indirect impact on carbon dioxide concentrations in the atmosphere which will further enhance global warming, in addition to ozone's already potent direct impact."

In addition to ozone pollution reducing the strength of trees to hold carbon in the northern temperate mid-latitudes by reducing tree growth, the research also indicates that broad-leaf trees, such as poplars, are more sensitive to ozone pollution than conifers, such as pines, and that root growth is suppressed more than aboveground growth.

"Beyond the consequences for global warming, the study also infers that in mixed forests conifers will be favored over broad-leaved trees, and that the decrease in root size will increase the vulnerability to storms," said Wittig.


'/>"/>

Contact: Jennifer Beal
wbnewseurope@wiley.com
44-078-024-68863
Wiley-Blackwell
Source:Eurekalert

Related biology news :

1. Wildfires cause ozone pollution to violate health standards, new study shows
2. Alternatives to ozone-depleting pesticide studied
3. Ozone hole recovery may reshape southern hemisphere climate change
4. Regional nuclear conflict would create near-global ozone hole, says CU-Boulder study
5. Gene that controls ozone resistance of plants could lead to drought-resistant crops
6. Ozone can affect heavier people more
7. Ozone intrusions -- humankinds fault?
8. MIT: Human-generated ozone will damage crops
9. 2007 ozone hole smaller than usual
10. NASA keeps eye on ozone layer amid Montreal Protocols success
11. Skin oil -- ozone interactions worsen air quality in airplanes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... December 1, 2016 The ... Voice), Future Technology (Iris Recognition System), Vehicle Type ... Global Forecast to 2021", published by MarketsandMarkets, the ... in 2016, and is projected to grow to ... of 14.06%.      (Logo: http://photos.prnewswire.com/prnh/20160303/792302) ...
(Date:11/29/2016)... , Nov. 29, 2016 BioDirection, a privately ... products for the objective detection of concussion and other ... has successfully completed a meeting with the U.S. Food ... blood test Pre-Submission Package. During the meeting company representatives ... as a precursor to commencement of a planned pilot ...
(Date:11/24/2016)... , Nov. 23, 2016 Cercacor today introduced ... and their trainers non-invasively measure hemoglobin, Oxygen ... Rate, and Respiration Rate in approximately 30 seconds. Smaller ... easy and immediate access to key data about their ... a training regimen. Hemoglobin carries oxygen ...
Breaking Biology News(10 mins):
(Date:12/6/2016)... and SAN DIEGO , Dec. ... the appointment of Santosh Kesari , MD, PhD, ... will leverage his experience in neurology and clinical trials ... stem cell for treatment of stroke. The AmnioStem product is ... which has previously shown therapeutic activity in animal models ...
(Date:12/6/2016)... ... December 06, 2016 , ... ... and development of precision treatments for neurodegenerative diseases, today announced the validated ... inhibited the direct neurotoxic effect of prion-like forms of Amyloid beta (Aß) ...
(Date:12/5/2016)... Research and Markets has announced the addition of Jain ... to their offering. ... , This report describes different ... as proteomics and metabolomics. Molecular diagnostics technologies are used for the ... Currently the most important applications of biomarkers are in ...
(Date:12/5/2016)... 5, 2016  Renova™ Therapeutics, a biotechnology company ... and other chronic diseases, announced that Catherine ... Chief Financial Officer (CFO), effective today. ... of experience in financial management for a variety ... companies. Most recently, Ms. Bovenizer was the Vice ...
Breaking Biology Technology: