Navigation Links
Higher carbon dioxide, lack of nitrogen limit plant growth

Earth's plant life will not be able to "store" excess carbon from rising atmospheric carbon dioxide levels as well as scientists once thought because plants likely cannot get enough nutrients, such as nitrogen, when there are higher levels of carbon dioxide, according to scientists publishing in this week's issue of the journal Nature.

That, in turn, is likely to dampen the ability of plants to offset increases in atmospheric carbon dioxide.

"We found that atmospheric carbon dioxide levels may rise even faster than anticipated, because ecosystems likely will not store as much carbon as had been predicted," said Peter Reich of the University of Minnesota, lead author of the study, which was conducted at the National Science Foundation (NSF)'s Cedar Creek Long-Term Ecological Research (LTER) site in Minn.

"As a result, soils will be unable to sustain plant growth over time [as atmospheric carbon dioxide continues to increase]," said plant ecologist David Ellsworth of the University of Michigan.

Estimating the role of terrestrial ecosystems as current and future sinks--or storage places--for excess carbon dioxide hinges on an ability to understand the complex interaction between atmospheric carbon dioxide and nitrogen in soils, the scientists believe.

The six-year study, the longest of its kind, sheds light on the relationship between carbon dioxide emissions and plant productivity. In the experiment, scientists grew 16 different grassland plants in 296 field plots. The plots were exposed to both ambient and elevated carbon dioxide levels, and varying levels of nitrogen.

The study was designed to document plants' ability to grow and flourish in nitrogen-depleted soil, which, scientists believe, will become more common as atmospheric carbon dioxide levels rise. Said Henry Gholz, director of NSF's LTER program, "Results from this research echo those of other studies of nitrogen's importance to trees and agricultural crops. I n the future, the effects of rising carbon dioxide on plants may become common throughout the world."

The Minn. study, with its range of species, provides a broad test of carbon dioxide and nitrogen interactions, said Reich. Previous studies have been done with a single or a few plant species.

The Cedar Creek LTER is one of 26 such LTER sites supported by NSF.


'"/>

Source:National Science Foundation


Related biology news :

1. Men Estimate Mens Risks Of Common Disorders Higher Than Women Do, And Vice Versa
2. Higher risk for cervical cancer seen among women infected with multiple HPV types
3. Higher levels of obesity associated with greater health risks
4. Deep sea algae connect ancient climate, carbon dioxide and vegetation
5. Microbe has huge role in ocean life, carbon cycle
6. Marine bacterium suspected to play role in global carbon and nitrogen cycles
7. High carbon dioxide levels spur Southern pines to grow more needles
8. Field tested: Grasslands wont help buffer climate change as carbon dioxide levels rise
9. Modifications render carbon nanotubes nontoxic
10. Climate change will affect carbon sequestration in oceans, model shows
11. Storing carbon to combat global warming may cause other environmental problems, study suggests
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/16/2016)... -- The global wearable medical device market, in terms of value, ... 5.31 billion in 2016, at a CAGR of 18.0% during the ... ... medical devices, launch of a growing number of smartphone-based healthcare apps ... providers, and increasing focus on physical fitness. Furthermore, ...
(Date:12/15/2016)... ... has announced the addition of the "Global Military Biometrics Market 2016-2020" ... global military biometrics market to grow at a CAGR of 7.5% during ... on an in-depth market analysis with inputs from industry experts. The report ... The report also includes a discussion of the key vendors operating in ...
(Date:12/15/2016)... 14, 2016 "Increase in mobile transactions is ... mobile biometrics market is expected to grow from USD ... 2022, at a CAGR of 29.3% between 2016 and ... the growing demand for smart devices, government initiatives, and ... "Software component is expected to grow at a high ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... ... January 24, 2017 , ... Men who have a ... had a positive association with increased prostate growth or benign prostatic hyperplasia, according ... Journal involved 571 Korean men who underwent urological examinations, including serum prostate ...
(Date:1/24/2017)... USA & Geneva, Switerland (PRWEB) , ... January ... ... to announce the first commercially available malaria Plasmodium falciparum culture panels with standard ... falciparum culture panels, which are available in a range of concentrations from six ...
(Date:1/24/2017)... LAVAL, QC , Jan. 24, 2017 /PRNewswire/ - ProMetic ... the "Corporation") announced today that its orally active lead ... Medicine ("PIM") designation by the UK Medicines and Healthcare ... Syndrome ("AS"). A PIM designation is ... promising candidate for the Early Access to Medicines Scheme ...
(Date:1/24/2017)... DC (PRWEB) , ... January 23, 2017 , ... ... and food security, is the first-ever recipient of the National Academy of Sciences ... to global food security and nutrition. , The annual National Academy of Sciences ...
Breaking Biology Technology: