Subscribe free to our newsletters via your
. Earth Science News .




Subscribe free to our newsletters via your




















WOOD PILE
Greenhouse gas effect caused by mangrove forest conversion is quite significant
by Staff Writers
Corvallis OR (SPX) Apr 13, 2017


Honduran and OSU students collect data necessary to determine the carbon stocks of a shrimp pond in Honduras. The mangrove forest is in the background. Image courtesy J. Boone Kauffman, courtesy of Oregon State University.

Clear-cutting of tropical mangrove forests to create shrimp ponds and cattle pastures contributes significantly to the greenhouse gas effect, one of the leading causes of global warming, new research suggests. A seven-year study, led by Oregon State University and the Center for International Forestry Research, spanned five countries across the topics from Indonesia to the Dominican Republic.

The researchers concluded that mangrove conversion to agricultural uses resulted in a land-use carbon footprint of 1,440 pounds of carbon dioxide released into the atmosphere for the production of every pound of beef; and 1,603 pounds of released carbon dioxide for every pound of shrimp.

"On a personal scale, this means a typical steak and shrimp cocktail dinner produced through mangrove conversion would burden the atmosphere with 1,795 pounds of carbon dioxide," said J. Boone Kauffman, an ecologist at Oregon State University who led the study.

"This is approximately the same amount of greenhouse gases produced by driving a fuel-efficient automobile from Los Angeles to New York City."

The findings are published online in the journal Frontiers in Ecology and the Environment. The results were derived by the researchers through development of a new measurement - the land-use carbon footprint - by measuring the amount of carbon stored in the intact mangrove forest, the greenhouse gas emissions rising from conversion, and the quantity of the shrimp or beef produced over the life of the land use.

Mangroves represent 0.6 percent of all the world's tropical forests but their deforestation accounts for as much as 12 percent of greenhouse gas emissions that come from all tropical deforestation, Kauffman said.

"What we found was astounding," said Kauffman, a senior research professor in the College of Agricultural Sciences. "It's a remarkable amount of carbon that is emitted into the atmosphere when you convert these mangrove forests to shrimp ponds or pastures. And the food productivity of these sites is not really very high."

Mangroves are a group of trees and shrubs that live in tropical coastal intertidal zones. There are about 80 different species of mangrove trees. All of these trees grow in areas of waterlogged soils, where slow-moving waters allow fine sediments to accumulate. In these environments, mangroves sequester significant quantities of carbon that is stored for centuries.

Rates of deforestation of mangroves have been dramatic over the past three decades. They are disappearing at the rate of about 1 percent per year. Conversion to shrimp ponds is the greatest single cause of mangrove degradation and decline in Southeast Asia.

The study was conducted on 30 relatively undisturbed mangrove forests and 21 adjacent shrimp ponds or cattle pastures. The sites were in Costa Rica, the Dominican Republic, Honduras, Indonesia and Mexico. Shrimp ponds were sampled in all countries except Mexico, where the predominant land use was conversion to cattle pastures.

The decline in carbon storage from mangrove conversion to shrimp ponds or cattle pastures exceeded the research group's previous estimates.

"These forests have been absorbing carbon for the last 4,000 or 5,000 years and now through deforestation they have become significant sources of greenhouse gas emissions," Kauffman said. "Because they store so much carbon that is released as greenhouse gases when deforested they are important sites for protection in order to mitigate or slow climate change."

Collaborators on the study were researchers at Counterpart International in Arlington, Virginia; Universidade Juarez Autonoma de Tabasco Villhermosa in Mexico; the Tropical Agricultural Research and Higher Education Center in Costa Rica; the Center for Climate Change Studies at the University of Mulawarman in Indonesia; Bogor Agricultural University in Indonesia; and the Center for International Forest Research in Indonesia.

WOOD PILE
When old growth beats old school
Burlington, VT (SPX) Apr 10, 2017
As the planet warms, carbon markets are getting hot too. Forest landowners have been looking for ways to enter these markets, making money from their commercial timberland not just by selling logs - but also by demonstrating that their land is absorbing climate-warming carbon dioxide from the air. The more carbon an acre of trees holds, the more valuable it will be in these new carbon markets - ... read more

Related Links
Oregon State University
Forestry News - Global and Local News, Science and Application

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

Comment using your Disqus, Facebook, Google or Twitter login.

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

WOOD PILE
Glowing bacteria detect buried landmines

Mosul zoo lion and bear flown out of Iraq

World's oldest dental fillings found in Italy

US says ending UN mission in Haiti is a 'strong example'

WOOD PILE
Despite EU fines, Greece struggling to promote recycling

New method for 3-D printing extraterrestrial materials

Ultra-thin multilayer film for next-generation data storage and processing

USC Viterbi researchers develop new class of optoelectronic materials

WOOD PILE
Into the DNA of a coral reef predator

Guinea seizes shark fins from Chinese ships

New England's glacial upland soils provide major groundwater storage reservoir

Catch shares slow the 'race to fish'

WOOD PILE
Researchers unravel the drivers of large iceberg movement

Polar glaciers may be home to previously undiscovered carbon cycle

Warm Atlantic waters contribute to sea ice decline

Permafrost more vulnerable than thought: scientists

WOOD PILE
To save honey bees, human behavior must change

So sheep may safely graze

Fungus uses light to invade, attack wheat plants

Colombia forces struggle to root out coca

WOOD PILE
Houses damaged as strong quake hits south Philippines

Antarctic penguin colony repeatedly decimated by volcanic eruptions

At least 35 dead in Iran floods; Quake rattles northern Chile

Developing a microinsurance plan for California earthquakes

WOOD PILE
Four dead in army, police clashes in Nigeria: source

Three killed in Mogadishu army camp attack: military

El Nino can warn on cholera outbreaks in Africa: study

Five dead in jihadist attack in Mali

WOOD PILE
Putting social science modeling through its paces

Study reveals 10,000 years of genetic continuity in northwest North America

Married couples with shared ancestry tend to have similar genes

Researchers uncover prehistoric art and ornaments from Indonesian 'Ice Age'




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