HOME >> BIOLOGY >> NEWS
Resilient form of plant carbon gives new meaning to term 'older than dirt'

A particularly resilient type of carbon from the first plants to regrow after the last ice age and that same type of carbon from all the plants since appears to have been accumulating for 11,000 years in the forests of British Columbia, Canada.

It's as if the carbon, which comes from the waxy material plants generate to protect their foliage from sun and weather, has been going into a bank account where only deposits are being made and virtually no withdrawals.

Modelers of the Earth's carbon cycle, who've worked on the assumption that this type of carbon remains in the soils only 1,000 to 10,000 years before microorganisms return it to the atmosphere as carbon dioxide, will need to revise their thinking if findings reported in the Nov. 24 issue of Science are typical of other northern forests.

"Our results about the resilience of this particular kind of carbon suggest that the turnover time of this carbon pool may be 10,000 to 100,000 years," says Rienk Smittenberg, a research associate with the University of Washington School of Oceanography and lead author of the paper. He did the work while at the Royal Netherlands Institute of Sea Research.

Soils harbor the third-largest pool of carbon in the world behind the carbon locked deep in the Earth as fossil fuel oils and coal and the carbon that is dissolved in the world's oceans.

In soils, the more edible kinds of carbon from plants are quickly digested by bacteria and turned back into carbon dioxide. But about half the organic carbon in soils is less edible or protected from the bacteria, making it ultimately responsible for long-term carbon storage on land, the authors say.

This carbon pool is not likely to have a role in offsetting increased greenhouse carbon dioxide in the atmosphere any time soon because of the very slow processes at work, Smittenberg says. Instead a better estimate of how long that carbon persists in soils is important for modelers interested in carbon rese
'"/>

Contact: Sandra Hines
shines@u.washington.edu
206-543-2580
University of Washington
23-Nov-2006


Page: 1 2

Related biology news :

1. Circadian clock controls plant growth hormone
2. New system of wastewater treatment could reduce the size of treatment plants by half
3. First case of successful ovarian tissue transplantation between two, nonidentical sisters
4. Discovery in plant virus may help prevent HIV and similar viruses
5. US Department of Defense awards $1.6 million for implantable biochip research
6. News conference on plant diseases and issues important to California
7. Insulin grown in plants relieves diabetes in mice; UCF study holds promise for humans
8. Isoprene emission from plants -- a volatile answer to heat stress
9. Brains hearing center may reorganize after implant of cochlear device
10. Implanon, Norplant and Jadelle are all effective contraceptives -- but side effects vary
11. A new plant-bacterial symbiotic mechanism promising

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: