HOME >> BIOLOGY >> NEWS
Small-scale logging leads to clear-cutting in Brazilian Amazon

Stanford, CA-A team of scientists, led by Greg Asner of the Carnegie Institution's Department of Global Ecology, has discovered an important indicator of rain forest vulnerability to clear-cutting in Brazil. Their five-year study is the first to quantify the relationship between selective logging, where loggers extract individual trees from the rain forest, and complete deforestation, or clear-cutting. They found that 16% of rain forests, which had been selectively logged, were completely clear-cut within one year and 32% of logged areas were completely cleared within four years. Virtually all of this double damage occurs within 15 miles (25 km) miles of major roads. Practically no selective logging takes place at distances greater than 15 miles from the roads.

The results, published during the week of July 31, 2006, in the on-line early edition of The Proceedings of the National Academy of Sciences,** come on the heels of recent Brazilian legislation to regulate logging for better sustainability and the announcement by the Brazilian National Space Research Institute (INPE) to develop a remote sensing system to monitor logging in collaboration with the Brazilian non-governmental organization, IMAZON. The on-going work of the Carnegie-led team could bolster the long-term timber management goals and monitoring efforts of the government.

The scientists used their novel high-resolution, remote-sensing techniques to measure logging and combined that information with the deforestation maps that Brazil makes publicly available through the INPE PRODES program. "We surveyed an area that is about three times the size of Texas from 1999 to 2004," explained Asner. Diane Wickland, Manager of the Terrestrial Ecology Program at NASA Headquarters, who funded the study, hailed this work as "a compelling demonstration of how satellite data can be used to provide quantitative information over large regions--regions too large to measure effectively in any other
'"/>

Contact: Greg Asner
gasner@globalecology.stanford.edu
650-380-2828
Carnegie Institution
31-Jul-2006


Page: 1 2 3

Related biology news :

1. Small-scale agricultural changes may help eradicate widespread disease
2. Salvage logging, replanting increased biscuit fire severity
3. Woods Hole Research Center scientists study impacts of industrial logging in Central Africa
4. New study sheds light on long-term effects of logging after wildfire
5. Debate continues on post-wildfire logging, forest regeneration
6. Modern forests suffer from century-old logging legacy
7. Selective logging causes widespread destruction of Brazils Amazon rainforest, study finds
8. Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees
9. Free-for-all illegal logging of mahogany in Peruvian parks, says Duke-based monitoring group
10. Acute sleep deprivation leads to changes in nighttime urine production for men and women
11. Biodesign Institute leads innovative project to prevent cancer

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Small scale logging leads clear cutting Brazilian Amazon

(Date:12/17/2014)... Va. , Dec. 15, 2014 The Defense ... easier to detect and prevent counterfeit microcircuits from entering ... started performing an in-house microcircuit anti-counterfeit initiative dubbed DNA ... microcircuits while increasing their reliability throughout the supply chain. ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... the "Global Chemical Sensor Market 2015-2019" report ... One major trend upcoming in this ... biomedical applications. Chemical sensors help in recording of patient ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition of ...  report to their offering. One major ... With continuous advances in technology, it is important to ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
(Date:1/22/2015)... (PRWEB) January 22, 2015 Protocol Networks ... The growing team of brand-neutral, independent consultants, Protocol Networks ... Rogers explained that over the years, his company has ... Moroso, Town of Plainfield, as well as others. With ...
(Date:1/22/2015)... zFlo Motion , a US leader in biomechanics software ... a new partner. STT-Systems has developed an impressive ... with offerings in the optical-motion capture, 3D scanning, and industrial ... unit), iSen, is opening eyes around the world. With no ...
(Date:1/22/2015)... Switzerland (PRWEB) January 22, 2015 Selexis ... characterized mammalian Research Cell Banks (RCBs) used for drug ... Research Cell Banks will include Next-Generation Sequencing ... genetic architecture de-risks biologic manufacturing by ensuring the integrity ...
(Date:1/22/2015)... DIEGO , Jan. 22, 2015   Cypher ... and Sequenom, Inc. (NASDAQ: SQNM ), ... development agreement for next generation noninvasive prenatal tests ... genome interpretation technology, called Mantis™, to advance analysis ...
Breaking Biology Technology:Protocol Networks Brings Independent Technology Consulting to the Constitution State 23D Motion Capture Just Got Easy 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4
Cached News: