Subscribe to our free daily newsletters
. Earth Science News .




Subscribe to our free daily newsletters



WOOD PILE
Carbon accumulation by US forests may slow over the next 25 years
by Staff Writers
Raleigh NC (SPX) Nov 19, 2015


Carbon stored in U.S. forests partially offsets that emitted by U.S. transportation, energy, and other sources.

Currently, the carbon sequestered in U.S. forests partially offsets the nation's carbon emissions and reduces the overall costs of achieving emission targets to address climate change - but that could change over the next 25 years.

The accumulation of carbon stored in U.S. forests may slow in the future, primarily due to land use change and forest aging - with the rate widely varying among regions - according to findings by U.S. Forest Service scientists published in the journal Scientific Reports.

Future declines in forest carbon sequestration could influence emission reduction targets in other sectors of the economy and impact the costs of achieving policy goals. The study also found that policies that encourage retaining or expanding forest land could enhance carbon sequestration levels in U.S. forests over the next 25 years.

Using detailed forest inventory data, Forest Service Southern Research Station (SRS) scientists David Wear and John Coulston estimated the amount of atmospheric carbon U.S. forests currently sequester.

"We found that after accounting for 44 teragrams of land use transfer carbon, sequestration by U.S. forests offset 173 teragrams or 173 million metric tons of the carbon emissions that result from U.S. transportation and energy sources," said Wear, project leader of the SRS Center for Integrated Forest Science.

The scientists used five different scenarios to project carbon accumulation over the next 25 years, and found that under all of the scenarios the ability of U.S. forests to sequester carbon - act as a carbon sink - will decline overall, with forests in some regions faring better than others.

"Our projections show only a gradual decline in forest carbon sequestration in the East, but a rapid decline to zero by 2037 in the Rocky Mountain region, where forests could become a carbon emission source due to disturbances such as fire and insect epidemics," said Coulston, SRS Forest Inventory and Analysis supervisory research forester.

"We found that carbon sequestration in the Pacific Coast region will fluctuate from current levels but then stabilize as forests harvested in previous decades regrow."

The researchers found that land use change strongly influences the amount of forest carbon stored. One of the scenarios they ran simulated the effects of policies that would encourage the retention or expansion of forest land as a way to enhance carbon sequestration.

They found that afforesting or restoring 19.1 million acres over the next 25 years, a plausible goal in light of historical conservation efforts such as the USDA Conservation Reserve Program, could yield significant gains in carbon sequestration over that period.

"Policymakers interested in reducing net carbon emissions in the U.S. need information about future sequestration rates, the variables influencing those rates, and policy options that might enhance sequestration rates," said Wear.

"The projection scenarios we developed for this study were designed to provide insights into these questions at a scale useful to policymakers."

Access the full text of the article here


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

.


Related Links
USDA Forest Service - Southern Research Station
Forestry News - Global and Local News, Science and Application






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
WOOD PILE
Scientists date the origin of the cacao tree to 10 million years ago
Washington DC (SPX) Nov 17, 2015
Chocolate, produced from seeds of the cacao tree Theobroma cacao, is one of the most popular flavors in the world, with sales around 100$ billion dollars per year. Yet, as worldwide demand increases, there are fears the industry will fail to cope with growing public hunger for the product. The main problem, common to many crops, is the lack of genetic variation in cultivated cacao, which m ... read more


WOOD PILE
Cuba, U.S. sign first environmental accord since diplomatic thaw

Choking air, melting glaciers: how global warming is changing India

US calls off hunt for black box of doomed 'El Faro' freighter

Japan court orders damages for French citizen over Fukushima evacuation

WOOD PILE
Hydrogel superglue is 90 percent water

Simple errors limit scientific scrutiny

Researchers discover a new form of crystalline matter

Sea urchin spurs new ideas for lightweight materials

WOOD PILE
Nanopores could take the salt out of seawater

Thermal sensitivity of marine communities reveals the most vulnerable to global warming

NASA adds up rainfall from 2 historic Yemen tropical cyclones

Study unlocks faster way to assess ocean ecosystem health

WOOD PILE
Loss of diversity near melting coastal glaciers

Growing Antarctic ice sheet caused ancient Mediterranean to dry up

Winter isolation ends at Concordia

In Greenland, Another Major Glacier Comes Undone

WOOD PILE
Australia blocks sale of huge cattle estate to foreigners

Honduran army goes to war against invading bugs

Early farmers exploited beehive products at least 8,500 years ago

Cattle dying in South Africa as drought deepens

WOOD PILE
Saudi flooding dath toll hits eight

6.8-magnitude quake hits off Solomon Islands: USGS

Deaths, flight delays as heavy rains hit Saudi

Earthquake hits Greek Lefkada island, two dead

WOOD PILE
Corruption hampered troops fighting Boko Haram: Nigeria's Buhari

In Kenya, a digital classroom in a box

Mali jihadist leader denounces peace deal, wants fight against France

China's investment in Africa down 40% on year: govt

WOOD PILE
CCNY researchers open 'Golden Window' in deep brain imaging

Early proto-porcelain from China likely made from local materials

Environment and climate helped shape varied evolution of human languages

Divisive religious beliefs humanity's biggest challenge: Grayling




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement