HOME >> BIOLOGY >> NEWS
NASA scientists get global fix on food, wood & fiber use

NASA scientists working with the World Wildlife Fund and others have measured how much of Earth's plant life humans need for food, fiber, wood and fuel. The study identifies human impact on ecosystems.

Satellite measurements were fed into computer models to calculate the annual net primary production (NPP) of plant growth on land. NASA developed models were used to estimate the annual percentage of NPP humans consume. Calculations of domesticated animal consumption were made based on plant-life required to support them.

Marc Imhoff and Lahouari Bounoua, researchers at NASA's Goddard Space Flight Center (GSFC), Greenbelt, Md., and colleagues, found humans annually require 20 percent of NPP generated on land. Regionally, the amount of plant-based material used varied greatly compared to how much was locally grown.

Humans in sparsely populated areas, like the Amazon, consumed a very small percentage of locally generated NPP. Large urban areas consumed 300 times more than the local area produced. North Americans needed almost 24 percent of the region's NPP.

The study did not take into account NPP from the ocean. It also did not include how trade between regions impacted equations. To map land NPP, researchers entered into a model a global satellite derived vegetation index and climate data from 1982 to 1998. The data came from the Advanced Very High Resolution Radiometer on the National Oceanic and Atmospheric Administration Polar Orbiting Environmental Satellites. The multi-year data set was processed at GSFC.

"This study uses the considerable technological assets of NASA's Earth Science Enterprise to better understand how we can maintain the highest possible production of food and fiber while still preserving our biological assets in the face of global change," Imhoff said.

By understanding patterns o
'"/>

Contact: Krishna Ramanujan
krishna_ramanujan@ssaihq.com
607-273-2561
NASA/Goddard Space Flight Center
23-Jun-2004


Page: 1 2

Related biology news :

1. DNA lends scientists a hand, revealing new chemical reactions
2. Conference at UH opens doors for new scientists, engineers
3. Wisconsin scientists develop quick botox test
4. UCI scientists successfully target key HIV protein; breakthrough may lead to new drug therapies
5. Alaska scientists find Arctic tundra yields surprising carbon loss
6. UAF scientists discover new marine habitat in Alaska
7. Information system to help scientists analyze mechanisms of social behavior
8. Zoonotic diseases - European scientists unite to fight diseases
9. Israeli scientists reveal the plan of a key cellular machine
10. Study by Israeli scientists provides insight on DNA code
11. Computer scientists at UH developing nurturing computers

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: NASA scientists get global fix food wood fiber use

(Date:11/18/2014)... 2014 The Parenteral Drug Association (PDA) today confirmed ... speak and at least seven more will participate in the ... Shoreham Hotel in Washington D.C. , Dec. ... significant support from the regulatory agencies in the ... in our effort to help advance the use of metrics ...
(Date:11/10/2014)... on U.S. store shelves in early 2010, and people ... small packets can be tossed into a washing machine ... powder. The convenience, though, has come with risks for ... Nationwide Children,s Hospital found that from 2012 through 2013, ... younger than 6 years of age swallowing, inhaling, or ...
(Date:11/6/2014)... yet progress in preventing and treating migratory cancer ... challenging to design drugs that work against metastasis," ... at Harvard Medical School. , "Unfortunately, many ... , Gujral and colleagues have now identified a ... how metastasis begins. Their findings may also inform ...
Breaking Biology News(10 mins):FDA's Janet Woodcock, EMA's Emer Cooke Headline PDA Quality Metrics Conference 2Study finds laundry detergent pods, serious poisoning risk for children 2Migration negation 2Migration negation 3
(Date:11/24/2014)... 2014  IGI Laboratories, Inc. (NYSE MKT: IG), a ... pharmaceutical company, today announced it has submitted an additional ... and Drug Administration (FDA), which brings the Company,s total ... eighteen submissions now pending at the FDA. ... the Company, commented, "Our team here at IGI has ...
(Date:11/24/2014)... WASHINGTON , Nov. 24, 2014  Last ... G.K. Butterfield (D-NC) took a bold ... diseases by introducing the OPEN Act. Original co-sponsors ... Hastings (D-FL). The Act will incentivize drug makers ... life-threatening rare diseases and pediatric cancers, which opens ...
(Date:11/24/2014)...   First published ... Elsevier , a world-leading provider of scientific, technical ... the launch of the latest title in the Current ... Food Science . Current ... new platform to keep up-to-date with the expanding volume of ...
(Date:11/24/2014)... Washington, USA (PRWEB) November 23, 2014 One ... dynamic field of optics and photonics is now available to ... or very low cost. SPIE, the international society for ... access to the complete SPIE Digital Library available ... subsidized price. , “Light-based technologies are integral to all areas ...
Breaking Biology Technology:IGI Laboratories, Inc. Announces ANDA Submission 2OPEN Act Introduced to Repurpose Drugs for Rare Diseases 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 3SPIE Digital Library Now Available to High Schools, Two-Year Colleges at No or Low Cost 2
Cached News: